diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bab7e036..bb1fb60c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,11 +7,6 @@ on:
 permissions:
   contents: read
 
-env:
-  FORCE_COLOR: 1
-  PYTHONUNBUFFERED: 1
-  PYTHONUTF8: 1
-
 jobs:
   smoke-tests:
     if: github.event.pull_request.draft == false
@@ -25,18 +20,18 @@ jobs:
       - name: Check scripts in repository are executable
         run: |
           IFS=$'\n';
-          for f in $(find . -name '*.sh'); do if [[ ! -x $f ]]; then echo "$f is not executable" && FAIL=1; fi ;done
+          for f in $(find . -name '*.sh' -o -name '*.bats'); do if [[ ! -x $f ]]; then echo "$f is not executable" && FAIL=1; fi ;done
           unset IFS;
           # If FAIL is 1 then we fail.
           [[ $FAIL == 1 ]] && exit 1 || echo "Scripts are executable!"
 
       - name: Differential ShellCheck
+        if: github.event_name == 'pull_request'
         uses: redhat-plumbers-in-action/differential-shellcheck@d965e66ec0b3b2f821f75c8eff9b12442d9a7d1e #v5.5.6
         with:
           severity: warning
           display-engine: sarif-fmt
 
-
       - name: Spell-Checking
         uses: codespell-project/actions-codespell@8f01853be192eb0f849a5c7d721450e7a467c579 #v2.2
         with:
@@ -48,12 +43,6 @@ jobs:
       - name: Run editorconfig-checker
         run: editorconfig-checker
 
-      - name: Check python code formatting with black
-        uses: psf/black@c6755bb741b6481d6b3d3bb563c83fa060db96c9 #26.3.1
-        with:
-          src: "./test"
-          options: "--check --diff --color"
-
   distro-test:
     if: github.event.pull_request.draft == false
     runs-on: ubuntu-latest
@@ -79,22 +68,9 @@ jobs:
             alpine_3_22,
             alpine_3_23,
           ]
-    env:
-      DISTRO: ${{matrix.distro}}
     steps:
       - name: Checkout repository
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
 
-      - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 #v6.2.0
-        with:
-          python-version: "3.13"
-
-      - name: Install wheel
-        run:  pip install wheel
-
-      - name: Install dependencies
-        run: pip install -r test/requirements.txt
-
-      - name: Test with tox
-        run: tox -c test/tox.${DISTRO}.ini
+      - name: Run BATS test suite for ${{ matrix.distro }}
+        run: DISTRO=${{ matrix.distro }} bash test/run.sh
diff --git a/.gitignore b/.gitignore
index 6322fd3e..97748824 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,15 +1,7 @@
 .DS_Store
-*.pyc
 *.swp
-__pycache__
-.cache
-.pytest_cache
-.tox
-.eggs
-*.egg-info
 .idea/
 *.iml
 .vscode/
-.venv/
 .fleet/
-.cache/
+test/libs/
diff --git a/test/__init__.py b/test/__init__.py
deleted file mode 100644
index e69de29b..00000000
diff --git a/test/conftest.py b/test/conftest.py
deleted file mode 100644
index d4c763e7..00000000
--- a/test/conftest.py
+++ /dev/null
@@ -1,175 +0,0 @@
-import pytest
-import testinfra
-import testinfra.backend.docker
-import subprocess
-from textwrap import dedent
-
-IMAGE = "pytest_pihole:test_container"
-tick_box = "[✓]"
-cross_box = "[✗]"
-info_box = "[i]"
-
-
-# Monkeypatch sh to bash, if they ever support non hard code /bin/sh this can go away
-# https://github.com/pytest-dev/pytest-testinfra/blob/master/testinfra/backend/docker.py
-def run_bash(self, command, *args, **kwargs):
-    cmd = self.get_command(command, *args)
-    if self.user is not None:
-        out = self.run_local(
-            "docker exec -u %s %s /bin/bash -c %s", self.user, self.name, cmd
-        )
-    else:
-        out = self.run_local("docker exec %s /bin/bash -c %s", self.name, cmd)
-    out.command = self.encode(cmd)
-    return out
-
-
-testinfra.backend.docker.DockerBackend.run = run_bash
-
-
-@pytest.fixture
-def host():
-    # run a container
-    docker_id = (
-        subprocess.check_output(["docker", "run", "-t", "-d", "--cap-add=ALL", IMAGE])
-        .decode()
-        .strip()
-    )
-
-    # return a testinfra connection to the container
-    docker_host = testinfra.get_host("docker://" + docker_id)
-
-    yield docker_host
-    # at the end of the test suite, destroy the container
-    subprocess.check_call(["docker", "rm", "-f", docker_id])
-
-
-# Helper functions
-def mock_command(script, args, container):
-    """
-    Allows for setup of commands we don't really want to have to run for real
-    in unit tests
-    """
-    full_script_path = "/usr/local/bin/{}".format(script)
-    mock_script = dedent(r"""\
-    #!/bin/bash -e
-    echo "\$0 \$@" >> /var/log/{script}
-    case "\$1" in""".format(script=script))
-    for k, v in args.items():
-        case = dedent("""
-        {arg})
-        echo {res}
-        exit {retcode}
-        ;;""".format(arg=k, res=v[0], retcode=v[1]))
-        mock_script += case
-    mock_script += dedent("""
-    esac""")
-    container.run(
-        """
-    cat <<EOF> {script}\n{content}\nEOF
-    chmod +x {script}
-    rm -f /var/log/{scriptlog}""".format(
-            script=full_script_path, content=mock_script, scriptlog=script
-        )
-    )
-
-
-def mock_command_passthrough(script, args, container):
-    """
-    Per other mock_command* functions, allows intercepting of commands we don't want to run for real
-    in unit tests, however also allows only specific arguments to be mocked. Anything not defined will
-    be passed through to the actual command.
-
-    Example use-case: mocking `git pull` but still allowing `git clone` to work as intended
-    """
-    orig_script_path = container.check_output("command -v {}".format(script))
-    full_script_path = "/usr/local/bin/{}".format(script)
-    mock_script = dedent(r"""\
-    #!/bin/bash -e
-    echo "\$0 \$@" >> /var/log/{script}
-    case "\$1" in""".format(script=script))
-    for k, v in args.items():
-        case = dedent("""
-        {arg})
-        echo {res}
-        exit {retcode}
-        ;;""".format(arg=k, res=v[0], retcode=v[1]))
-        mock_script += case
-    mock_script += dedent(r"""
-    *)
-    {orig_script_path} "\$@"
-    ;;""".format(orig_script_path=orig_script_path))
-    mock_script += dedent("""
-    esac""")
-    container.run(
-        """
-    cat <<EOF> {script}\n{content}\nEOF
-    chmod +x {script}
-    rm -f /var/log/{scriptlog}""".format(
-            script=full_script_path, content=mock_script, scriptlog=script
-        )
-    )
-
-
-def mock_command_run(script, args, container):
-    """
-    Allows for setup of commands we don't really want to have to run for real
-    in unit tests
-    """
-    full_script_path = "/usr/local/bin/{}".format(script)
-    mock_script = dedent(r"""\
-    #!/bin/bash -e
-    echo "\$0 \$@" >> /var/log/{script}
-    case "\$1 \$2" in""".format(script=script))
-    for k, v in args.items():
-        case = dedent("""
-        \"{arg}\")
-        echo {res}
-        exit {retcode}
-        ;;""".format(arg=k, res=v[0], retcode=v[1]))
-        mock_script += case
-    mock_script += dedent(r"""
-    esac""")
-    container.run(
-        """
-    cat <<EOF> {script}\n{content}\nEOF
-    chmod +x {script}
-    rm -f /var/log/{scriptlog}""".format(
-            script=full_script_path, content=mock_script, scriptlog=script
-        )
-    )
-
-
-def mock_command_2(script, args, container):
-    """
-    Allows for setup of commands we don't really want to have to run for real
-    in unit tests
-    """
-    full_script_path = "/usr/local/bin/{}".format(script)
-    mock_script = dedent(r"""\
-    #!/bin/bash -e
-    echo "\$0 \$@" >> /var/log/{script}
-    case "\$1 \$2" in""".format(script=script))
-    for k, v in args.items():
-        case = dedent("""
-        \"{arg}\")
-        echo \"{res}\"
-        exit {retcode}
-        ;;""".format(arg=k, res=v[0], retcode=v[1]))
-        mock_script += case
-    mock_script += dedent(r"""
-    esac""")
-    container.run(
-        """
-    cat <<EOF> {script}\n{content}\nEOF
-    chmod +x {script}
-    rm -f /var/log/{scriptlog}""".format(
-            script=full_script_path, content=mock_script, scriptlog=script
-        )
-    )
-
-
-def run_script(Pihole, script):
-    result = Pihole.run(script)
-    assert result.rc == 0
-    return result
diff --git a/test/helpers/mocks.bash b/test/helpers/mocks.bash
new file mode 100755
index 00000000..33f9f842
--- /dev/null
+++ b/test/helpers/mocks.bash
@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+# Mock command helpers for BATS tests.
+#
+# These are the BATS equivalents of the mock_command* functions in conftest.py.
+# Each function writes a bash case-statement script to /usr/local/bin/<name>
+# inside the container, allowing tests to intercept command invocations.
+#
+# Usage:
+#   mock_command         CONTAINER SCRIPT ARG1 OUTPUT1 RC1 [ARG2 OUTPUT2 RC2 ...]
+#   mock_command_2       CONTAINER SCRIPT ARG1 OUTPUT1 RC1 [ARG2 OUTPUT2 RC2 ...]
+#   mock_command_passthrough CONTAINER SCRIPT ARG1 OUTPUT1 RC1 [...]
+#
+# mock_command:         matches on $1 (first argument); unquoted case pattern
+# mock_command_2:       matches on "$1 $2" (first two args joined); quoted pattern
+# mock_command_passthrough: like mock_command but falls through to real binary
+#
+# Use '*' as ARG for a catch-all case (only works in mock_command and
+# mock_command_passthrough; in mock_command_2 it matches the literal string '*').
+#
+# Content is transferred to the container via base64 to avoid quoting issues.
+
+_write_mock_to_container() {
+    local container="$1" script_name="$2" script_content="$3"
+    # base64 alphabet is [A-Za-z0-9+/=] — safe to single-quote in the shell
+    local encoded
+    encoded=$(printf '%s' "$script_content" | base64 | tr -d '\n')
+    docker exec "$container" bash -c \
+        "printf '%s' '${encoded}' | base64 -d > /usr/local/bin/${script_name} && chmod +x /usr/local/bin/${script_name} && rm -f /var/log/${script_name}"
+}
+
+# mock_command — matches on $1
+mock_command() {
+    local container="$1" script_name="$2"
+    shift 2
+
+    local script
+    script='#!/bin/bash -e'$'\n'
+    script+="echo \"\$0 \$@\" >> /var/log/${script_name}"$'\n'
+    script+='case "$1" in'$'\n'
+
+    while (( $# >= 3 )); do
+        local arg="$1" output="$2" rc="$3"
+        shift 3
+        script+="    ${arg})"$'\n'
+        script+="    echo ${output}"$'\n'
+        script+="    exit ${rc}"$'\n'
+        script+="    ;;"$'\n'
+    done
+    script+='esac'$'\n'
+
+    _write_mock_to_container "$container" "$script_name" "$script"
+}
+
+# mock_command_2 — matches on "$1 $2" (quoted pattern, quoted echo output)
+mock_command_2() {
+    local container="$1" script_name="$2"
+    shift 2
+
+    local script
+    script='#!/bin/bash -e'$'\n'
+    script+="echo \"\$0 \$@\" >> /var/log/${script_name}"$'\n'
+    script+='case "$1 $2" in'$'\n'
+
+    while (( $# >= 3 )); do
+        local arg="$1" output="$2" rc="$3"
+        shift 3
+        script+="    \"${arg}\")"$'\n'
+        script+="    echo \"${output}\""$'\n'
+        script+="    exit ${rc}"$'\n'
+        script+="    ;;"$'\n'
+    done
+    script+='esac'$'\n'
+
+    _write_mock_to_container "$container" "$script_name" "$script"
+}
+
+# mock_command_passthrough — matches on $1; falls through to real binary for
+# unmatched arguments
+mock_command_passthrough() {
+    local container="$1" script_name="$2"
+    shift 2
+
+    # Find the real binary path before we shadow it
+    local orig_path
+    orig_path=$(docker exec "$container" bash -c "command -v ${script_name}")
+
+    local script
+    script='#!/bin/bash -e'$'\n'
+    script+="echo \"\$0 \$@\" >> /var/log/${script_name}"$'\n'
+    script+='case "$1" in'$'\n'
+
+    while (( $# >= 3 )); do
+        local arg="$1" output="$2" rc="$3"
+        shift 3
+        script+="    ${arg})"$'\n'
+        script+="    echo ${output}"$'\n'
+        script+="    exit ${rc}"$'\n'
+        script+="    ;;"$'\n'
+    done
+    script+='    *)'$'\n'
+    script+="    ${orig_path} \"\$@\""$'\n'
+    script+='    ;;'$'\n'
+    script+='esac'$'\n'
+
+    _write_mock_to_container "$container" "$script_name" "$script"
+}
diff --git a/test/requirements.txt b/test/requirements.txt
deleted file mode 100644
index c8feda47..00000000
--- a/test/requirements.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-pyyaml == 6.0.3
-pytest == 9.0.2
-pytest-xdist == 3.8.0
-pytest-testinfra == 10.2.2
-tox == 4.49.1
-pytest-clarity == 1.0.1
diff --git a/test/run.sh b/test/run.sh
new file mode 100755
index 00000000..dac34c7e
--- /dev/null
+++ b/test/run.sh
@@ -0,0 +1,84 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$SCRIPT_DIR"
+
+# ---------------------------------------------------------------------------
+# Distro selection
+# ---------------------------------------------------------------------------
+
+if [[ -z "${DISTRO:-}" ]]; then
+    echo "Error: DISTRO is required."
+    echo "Example: DISTRO=debian_12 bash test/run.sh"
+    echo ""
+    echo "Available distros:"
+    ls _*.Dockerfile | sed 's/^_//;s/\.Dockerfile$//' | sort
+    exit 1
+fi
+
+DOCKERFILE="_${DISTRO}.Dockerfile"
+if [[ ! -f "$DOCKERFILE" ]]; then
+    echo "Error: Dockerfile not found: $DOCKERFILE"
+    exit 1
+fi
+
+# Determine distro family to select which test files to run.
+# rhel: CentOS/Fedora — includes SELinux tests
+# alpine: Alpine Linux
+# debian: Debian/Ubuntu (default)
+distro_family() {
+    case "$1" in
+        centos_* | fedora_*) echo "rhel" ;;
+        alpine_*) echo "alpine" ;;
+        *) echo "debian" ;;
+    esac
+}
+DISTRO_FAMILY=$(distro_family "$DISTRO")
+
+# ---------------------------------------------------------------------------
+# Build the test image
+# ---------------------------------------------------------------------------
+
+IMAGE_TAG="pihole_test:${DISTRO}"
+
+docker buildx build \
+    --load \
+    --progress plain \
+    -f "$DOCKERFILE" \
+    -t "$IMAGE_TAG" \
+    ../
+
+# ---------------------------------------------------------------------------
+# Install BATS and helper libraries (on-demand, not committed)
+# ---------------------------------------------------------------------------
+
+mkdir -p libs
+if [[ ! -d libs/bats ]]; then
+    echo "Cloning bats-core..."
+    git clone --depth=1 --quiet https://github.com/bats-core/bats-core libs/bats
+fi
+if [[ ! -d libs/bats-support ]]; then
+    echo "Cloning bats-support..."
+    git clone --depth=1 --quiet https://github.com/bats-core/bats-support libs/bats-support
+fi
+if [[ ! -d libs/bats-assert ]]; then
+    echo "Cloning bats-assert..."
+    git clone --depth=1 --quiet https://github.com/bats-core/bats-assert libs/bats-assert
+fi
+
+BATS="${BATS:-libs/bats/bin/bats}"
+
+# ---------------------------------------------------------------------------
+# Run tests
+# ---------------------------------------------------------------------------
+
+export IMAGE_TAG DISTRO DISTRO_FAMILY
+
+TEST_FILES=(test_automated_install.bats test_utils.bats)
+[[ "$DISTRO_FAMILY" == "rhel" ]] && TEST_FILES+=(test_selinux.bats)
+
+# Use pretty output only when stdout is a real terminal; fall back to TAP in CI
+BATS_FLAGS=()
+[[ -t 1 ]] && BATS_FLAGS+=("-p")
+"$BATS" "${BATS_FLAGS[@]}" "${TEST_FILES[@]}"
diff --git a/test/setup.py b/test/setup.py
deleted file mode 100644
index cdde20d3..00000000
--- a/test/setup.py
+++ /dev/null
@@ -1,7 +0,0 @@
-from setuptools import setup
-
-setup(
-    py_modules=[],
-    setup_requires=["pytest-runner"],
-    tests_require=["pytest"],
-)
diff --git a/test/test_any_automated_install.py b/test/test_any_automated_install.py
deleted file mode 100644
index aa48fd32..00000000
--- a/test/test_any_automated_install.py
+++ /dev/null
@@ -1,472 +0,0 @@
-import pytest
-from textwrap import dedent
-import re
-from .conftest import (
-    tick_box,
-    info_box,
-    cross_box,
-    mock_command,
-    mock_command_2,
-    mock_command_passthrough,
-)
-
-FTL_BRANCH = "development"
-
-
-def test_supported_package_manager(host):
-    """
-    confirm installer exits when no supported package manager found
-    """
-    # break supported package managers
-    host.run("rm -rf /usr/bin/apt-get")
-    host.run("rm -rf /usr/bin/rpm")
-    host.run("rm -rf /sbin/apk")
-    package_manager_detect = host.run("""
-    source /opt/pihole/basic-install.sh
-    package_manager_detect
-    """)
-    expected_stdout = cross_box + " No supported package manager found"
-    assert expected_stdout in package_manager_detect.stdout
-    # assert package_manager_detect.rc == 1
-
-
-def test_selinux_not_detected(host):
-    """
-    confirms installer continues when SELinux configuration file does not exist
-    """
-    check_selinux = host.run("""
-    rm -f /etc/selinux/config
-    source /opt/pihole/basic-install.sh
-    checkSelinux
-    """)
-    expected_stdout = info_box + " SELinux not detected"
-    assert expected_stdout in check_selinux.stdout
-    assert check_selinux.rc == 0
-
-
-def get_directories_recursive(host, directory):
-    if directory is None:
-        return directory
-    # returns all non-hidden subdirs of 'directory'
-    dirs_raw = host.run("find {} -type d -not -path '*/.*'".format(directory))
-    dirs = list(filter(bool, dirs_raw.stdout.splitlines()))
-    return dirs
-
-
-def test_installPihole_fresh_install_readableFiles(host):
-    """
-    confirms all necessary files are readable by pihole user
-    """
-    # dialog returns Cancel for user prompt
-    mock_command("dialog", {"*": ("", "0")}, host)
-    # mock git pull
-    mock_command_passthrough("git", {"pull": ("", "0")}, host)
-    # mock systemctl to not start FTL
-    mock_command_2(
-        "systemctl",
-        {
-            "enable pihole-FTL": ("", "0"),
-            "restart pihole-FTL": ("", "0"),
-            "start pihole-FTL": ("", "0"),
-            "*": ('echo "systemctl call with $@"', "0"),
-        },
-        host,
-    )
-    mock_command_2(
-        "rc-service",
-        {
-            "rc-service pihole-FTL enable": ("", "0"),
-            "rc-service pihole-FTL restart": ("", "0"),
-            "rc-service pihole-FTL start": ("", "0"),
-            "*": ('echo "rc-service call with $@"', "0"),
-        },
-        host,
-    )
-    # try to install man
-    host.run("command -v apt-get > /dev/null && apt-get install -qq man")
-    host.run("command -v dnf > /dev/null && dnf install -y man")
-    host.run("command -v yum > /dev/null && yum install -y man")
-    host.run("command -v apk > /dev/null && apk add mandoc man-pages")
-    # Workaround to get FTLv6 installed until it reaches master branch
-    host.run('echo "' + FTL_BRANCH + '" > /etc/pihole/ftlbranch')
-    install = host.run("""
-    export TERM=xterm
-    export DEBIAN_FRONTEND=noninteractive
-    umask 0027
-    runUnattended=true
-    source /opt/pihole/basic-install.sh > /dev/null
-    runUnattended=true
-    main
-    /opt/pihole/pihole-FTL-prestart.sh
-    """)
-    assert 0 == install.rc
-    maninstalled = True
-    if (info_box + " man not installed") in install.stdout:
-        maninstalled = False
-    if (info_box + " man pages not installed") in install.stdout:
-        maninstalled = False
-    piholeuser = "pihole"
-    exit_status_success = 0
-    test_cmd = 'su -s /bin/bash -c "test -{0} {1}" -p {2}'
-    # check files in /etc/pihole for read, write and execute permission
-    check_etc = test_cmd.format("r", "/etc/pihole", piholeuser)
-    actual_rc = host.run(check_etc).rc
-    assert exit_status_success == actual_rc
-    check_etc = test_cmd.format("x", "/etc/pihole", piholeuser)
-    actual_rc = host.run(check_etc).rc
-    assert exit_status_success == actual_rc
-    # readable and writable dhcp.leases
-    check_leases = test_cmd.format("r", "/etc/pihole/dhcp.leases", piholeuser)
-    actual_rc = host.run(check_leases).rc
-    assert exit_status_success == actual_rc
-    check_leases = test_cmd.format("w", "/etc/pihole/dhcp.leases", piholeuser)
-    actual_rc = host.run(check_leases).rc
-    # readable install.log
-    check_install = test_cmd.format("r", "/etc/pihole/install.log", piholeuser)
-    actual_rc = host.run(check_install).rc
-    assert exit_status_success == actual_rc
-    # readable versions
-    check_localversion = test_cmd.format("r", "/etc/pihole/versions", piholeuser)
-    actual_rc = host.run(check_localversion).rc
-    assert exit_status_success == actual_rc
-    # readable macvendor.db
-    check_macvendor = test_cmd.format("r", "/etc/pihole/macvendor.db", piholeuser)
-    actual_rc = host.run(check_macvendor).rc
-    assert exit_status_success == actual_rc
-    # check readable and executable /etc/init.d/pihole-FTL
-    check_init = test_cmd.format("x", "/etc/init.d/pihole-FTL", piholeuser)
-    actual_rc = host.run(check_init).rc
-    assert exit_status_success == actual_rc
-    check_init = test_cmd.format("r", "/etc/init.d/pihole-FTL", piholeuser)
-    actual_rc = host.run(check_init).rc
-    assert exit_status_success == actual_rc
-    # check readable and executable manpages
-    if maninstalled is True:
-        check_man = test_cmd.format("x", "/usr/local/share/man", piholeuser)
-        actual_rc = host.run(check_man).rc
-        assert exit_status_success == actual_rc
-        check_man = test_cmd.format("r", "/usr/local/share/man", piholeuser)
-        actual_rc = host.run(check_man).rc
-        assert exit_status_success == actual_rc
-        check_man = test_cmd.format("x", "/usr/local/share/man/man8", piholeuser)
-        actual_rc = host.run(check_man).rc
-        assert exit_status_success == actual_rc
-        check_man = test_cmd.format("r", "/usr/local/share/man/man8", piholeuser)
-        actual_rc = host.run(check_man).rc
-        assert exit_status_success == actual_rc
-        check_man = test_cmd.format(
-            "r", "/usr/local/share/man/man8/pihole.8", piholeuser
-        )
-        actual_rc = host.run(check_man).rc
-        assert exit_status_success == actual_rc
-    # check not readable cron file
-    check_sudo = test_cmd.format("x", "/etc/cron.d/", piholeuser)
-    actual_rc = host.run(check_sudo).rc
-    assert exit_status_success == actual_rc
-    check_sudo = test_cmd.format("r", "/etc/cron.d/", piholeuser)
-    actual_rc = host.run(check_sudo).rc
-    assert exit_status_success == actual_rc
-    check_sudo = test_cmd.format("r", "/etc/cron.d/pihole", piholeuser)
-    actual_rc = host.run(check_sudo).rc
-    assert exit_status_success == actual_rc
-    directories = get_directories_recursive(host, "/etc/.pihole/")
-    for directory in directories:
-        check_pihole = test_cmd.format("r", directory, piholeuser)
-        actual_rc = host.run(check_pihole).rc
-        check_pihole = test_cmd.format("x", directory, piholeuser)
-        actual_rc = host.run(check_pihole).rc
-        findfiles = 'find "{}" -maxdepth 1 -type f  -exec echo {{}} \\;;'
-        filelist = host.run(findfiles.format(directory))
-        files = list(filter(bool, filelist.stdout.splitlines()))
-        for file in files:
-            check_pihole = test_cmd.format("r", file, piholeuser)
-            actual_rc = host.run(check_pihole).rc
-
-
-def test_update_package_cache_success_no_errors(host):
-    """
-    confirms package cache was updated without any errors
-    """
-    updateCache = host.run("""
-    source /opt/pihole/basic-install.sh
-    package_manager_detect
-    update_package_cache
-    """)
-    expected_stdout = tick_box + " Update local cache of available packages"
-    assert expected_stdout in updateCache.stdout
-    assert "error" not in updateCache.stdout.lower()
-
-
-def test_update_package_cache_failure_no_errors(host):
-    """
-    confirms package cache was not updated
-    """
-    mock_command("apt-get", {"update": ("", "1")}, host)
-    updateCache = host.run("""
-    source /opt/pihole/basic-install.sh
-    package_manager_detect
-    update_package_cache
-    """)
-    expected_stdout = cross_box + " Update local cache of available packages"
-    assert expected_stdout in updateCache.stdout
-    assert "Error: Unable to update package cache." in updateCache.stdout
-
-
-@pytest.mark.parametrize(
-    "arch,detected_string,supported",
-    [
-        ("aarch64", "AArch64 (64 Bit ARM)", True),
-        ("armv6", "ARMv6", True),
-        ("armv7l", "ARMv7 (or newer)", True),
-        ("armv7", "ARMv7 (or newer)", True),
-        ("armv8a", "ARMv7 (or newer)", True),
-        ("x86_64", "x86_64", True),
-        ("riscv64", "riscv64", True),
-        ("mips", "mips", False),
-    ],
-)
-def test_FTL_detect_no_errors(host, arch, detected_string, supported):
-    """
-    confirms only correct package is downloaded for FTL engine
-    """
-    # mock uname to return passed platform
-    mock_command("uname", {"-m": (arch, "0")}, host)
-    # mock readelf to respond with passed CPU architecture
-    mock_command_2(
-        "readelf",
-        {
-            "-A /bin/sh": ("Tag_CPU_arch: " + arch, "0"),
-            "-A /usr/bin/sh": ("Tag_CPU_arch: " + arch, "0"),
-            "-A /usr/sbin/sh": ("Tag_CPU_arch: " + arch, "0"),
-        },
-        host,
-    )
-    host.run('echo "' + FTL_BRANCH + '" > /etc/pihole/ftlbranch')
-    detectPlatform = host.run("""
-    source /opt/pihole/basic-install.sh
-    create_pihole_user
-    funcOutput=$(get_binary_name)
-    binary="pihole-FTL${funcOutput##*pihole-FTL}"
-    theRest="${funcOutput%pihole-FTL*}"
-    FTLdetect "${binary}" "${theRest}"
-    """)
-    if supported:
-        expected_stdout = info_box + " FTL Checks..."
-        assert expected_stdout in detectPlatform.stdout
-        expected_stdout = tick_box + " Detected " + detected_string + " architecture"
-        assert expected_stdout in detectPlatform.stdout
-        expected_stdout = tick_box + " Downloading and Installing FTL"
-        assert expected_stdout in detectPlatform.stdout
-    else:
-        expected_stdout = (
-            "Not able to detect architecture (unknown: " + detected_string + ")"
-        )
-        assert expected_stdout in detectPlatform.stdout
-
-
-def test_FTL_development_binary_installed_and_responsive_no_errors(host):
-    """
-    confirms FTL development binary is copied and functional in installed location
-    """
-    host.run('echo "' + FTL_BRANCH + '" > /etc/pihole/ftlbranch')
-    host.run("""
-    source /opt/pihole/basic-install.sh
-    create_pihole_user
-    funcOutput=$(get_binary_name)
-    binary="pihole-FTL${funcOutput##*pihole-FTL}"
-    theRest="${funcOutput%pihole-FTL*}"
-    FTLdetect "${binary}" "${theRest}"
-    """)
-    version_check = host.run("""
-    VERSION=$(pihole-FTL version)
-    echo ${VERSION:0:1}
-    """)
-    expected_stdout = "v"
-    assert expected_stdout in version_check.stdout
-
-
-def test_IPv6_only_link_local(host):
-    """
-    confirms IPv6 blocking is disabled for Link-local address
-    """
-    # mock ip -6 address to return Link-local address
-    mock_command_2(
-        "ip",
-        {"-6 address": ("inet6 fe80::d210:52fa:fe00:7ad7/64 scope link", "0")},
-        host,
-    )
-    detectPlatform = host.run("""
-    source /opt/pihole/basic-install.sh
-    find_IPv6_information
-    """)
-    expected_stdout = "Unable to find IPv6 ULA/GUA address"
-    assert expected_stdout in detectPlatform.stdout
-
-
-def test_IPv6_only_ULA(host):
-    """
-    confirms IPv6 blocking is enabled for ULA addresses
-    """
-    # mock ip -6 address to return ULA address
-    mock_command_2(
-        "ip",
-        {
-            "-6 address": (
-                "inet6 fda2:2001:5555:0:d210:52fa:fe00:7ad7/64 scope global",
-                "0",
-            )
-        },
-        host,
-    )
-    detectPlatform = host.run("""
-    source /opt/pihole/basic-install.sh
-    find_IPv6_information
-    """)
-    expected_stdout = "Found IPv6 ULA address"
-    assert expected_stdout in detectPlatform.stdout
-
-
-def test_IPv6_only_GUA(host):
-    """
-    confirms IPv6 blocking is enabled for GUA addresses
-    """
-    # mock ip -6 address to return GUA address
-    mock_command_2(
-        "ip",
-        {
-            "-6 address": (
-                "inet6 2003:12:1e43:301:d210:52fa:fe00:7ad7/64 scope global",
-                "0",
-            )
-        },
-        host,
-    )
-    detectPlatform = host.run("""
-    source /opt/pihole/basic-install.sh
-    find_IPv6_information
-    """)
-    expected_stdout = "Found IPv6 GUA address"
-    assert expected_stdout in detectPlatform.stdout
-
-
-def test_IPv6_GUA_ULA_test(host):
-    """
-    confirms IPv6 blocking is enabled for GUA and ULA addresses
-    """
-    # mock ip -6 address to return GUA and ULA addresses
-    mock_command_2(
-        "ip",
-        {
-            "-6 address": (
-                "inet6 2003:12:1e43:301:d210:52fa:fe00:7ad7/64 scope global\n"
-                "inet6 fda2:2001:5555:0:d210:52fa:fe00:7ad7/64 scope global",
-                "0",
-            )
-        },
-        host,
-    )
-    detectPlatform = host.run("""
-    source /opt/pihole/basic-install.sh
-    find_IPv6_information
-    """)
-    expected_stdout = "Found IPv6 ULA address"
-    assert expected_stdout in detectPlatform.stdout
-
-
-def test_IPv6_ULA_GUA_test(host):
-    """
-    confirms IPv6 blocking is enabled for GUA and ULA addresses
-    """
-    # mock ip -6 address to return ULA and GUA addresses
-    mock_command_2(
-        "ip",
-        {
-            "-6 address": (
-                "inet6 fda2:2001:5555:0:d210:52fa:fe00:7ad7/64 scope global\n"
-                "inet6 2003:12:1e43:301:d210:52fa:fe00:7ad7/64 scope global",
-                "0",
-            )
-        },
-        host,
-    )
-    detectPlatform = host.run("""
-    source /opt/pihole/basic-install.sh
-    find_IPv6_information
-    """)
-    expected_stdout = "Found IPv6 ULA address"
-    assert expected_stdout in detectPlatform.stdout
-
-
-def test_validate_ip(host):
-    """
-    Tests valid_ip for various IP addresses
-    """
-
-    def test_address(addr, success=True):
-        output = host.run("""
-        source /opt/pihole/basic-install.sh
-        valid_ip "{addr}"
-        """.format(addr=addr))
-
-        assert output.rc == 0 if success else 1
-
-    test_address("192.168.1.1")
-    test_address("127.0.0.1")
-    test_address("255.255.255.255")
-    test_address("255.255.255.256", False)
-    test_address("255.255.256.255", False)
-    test_address("255.256.255.255", False)
-    test_address("256.255.255.255", False)
-    test_address("1092.168.1.1", False)
-    test_address("not an IP", False)
-    test_address("8.8.8.8#", False)
-    test_address("8.8.8.8#0")
-    test_address("8.8.8.8#1")
-    test_address("8.8.8.8#42")
-    test_address("8.8.8.8#888")
-    test_address("8.8.8.8#1337")
-    test_address("8.8.8.8#65535")
-    test_address("8.8.8.8#65536", False)
-    test_address("8.8.8.8#-1", False)
-    test_address("00.0.0.0", False)
-    test_address("010.0.0.0", False)
-    test_address("001.0.0.0", False)
-    test_address("0.0.0.0#00", False)
-    test_address("0.0.0.0#01", False)
-    test_address("0.0.0.0#001", False)
-    test_address("0.0.0.0#0001", False)
-    test_address("0.0.0.0#00001", False)
-
-
-def test_package_manager_has_pihole_deps(host):
-    """Confirms OS is able to install the required packages for Pi-hole"""
-    mock_command("dialog", {"*": ("", "0")}, host)
-    output = host.run("""
-    source /opt/pihole/basic-install.sh
-    package_manager_detect
-    update_package_cache
-    build_dependency_package
-    install_dependent_packages
-    """)
-
-    assert "No package" not in output.stdout
-    assert output.rc == 0
-
-
-def test_meta_package_uninstall(host):
-    """Confirms OS is able to install and uninstall the Pi-hole meta package"""
-    mock_command("dialog", {"*": ("", "0")}, host)
-    install = host.run("""
-    source /opt/pihole/basic-install.sh
-    package_manager_detect
-    update_package_cache
-    build_dependency_package
-    install_dependent_packages
-    """)
-    assert install.rc == 0
-
-    uninstall = host.run("""
-    source /opt/pihole/uninstall.sh
-    removeMetaPackage
-    """)
-    assert uninstall.rc == 0
diff --git a/test/test_any_utils.py b/test/test_any_utils.py
deleted file mode 100644
index 43e637f3..00000000
--- a/test/test_any_utils.py
+++ /dev/null
@@ -1,49 +0,0 @@
-def test_key_val_replacement_works(host):
-    """Confirms addOrEditKeyValPair either adds or replaces a key value pair in a given file"""
-    host.run("""
-    source /opt/pihole/utils.sh
-    addOrEditKeyValPair "./testoutput" "KEY_ONE" "value1"
-    addOrEditKeyValPair "./testoutput" "KEY_TWO" "value2"
-    addOrEditKeyValPair "./testoutput" "KEY_ONE" "value3"
-    addOrEditKeyValPair "./testoutput" "KEY_FOUR" "value4"
-    """)
-    output = host.run("""
-    cat ./testoutput
-    """)
-    expected_stdout = "KEY_ONE=value3\nKEY_TWO=value2\nKEY_FOUR=value4\n"
-    assert expected_stdout == output.stdout
-
-
-def test_getFTLPID_default(host):
-    """Confirms getFTLPID returns the default value if FTL is not running"""
-    output = host.run("""
-    source /opt/pihole/utils.sh
-    getFTLPID
-    """)
-    expected_stdout = "-1\n"
-    assert expected_stdout == output.stdout
-
-
-def test_setFTLConfigValue_getFTLConfigValue(host):
-    """
-    Confirms getFTLConfigValue works (also assumes setFTLConfigValue works)
-    Requires FTL to be installed, so we do that first
-    (taken from test_FTL_development_binary_installed_and_responsive_no_errors)
-    """
-    host.run("""
-    source /opt/pihole/basic-install.sh
-    create_pihole_user
-    funcOutput=$(get_binary_name)
-    echo "development" > /etc/pihole/ftlbranch
-    binary="pihole-FTL${funcOutput##*pihole-FTL}"
-    theRest="${funcOutput%pihole-FTL*}"
-    FTLdetect "${binary}" "${theRest}"
-    """)
-
-    output = host.run("""
-    source /opt/pihole/utils.sh
-    setFTLConfigValue "dns.upstreams" '["9.9.9.9"]' > /dev/null
-    getFTLConfigValue "dns.upstreams"
-    """)
-
-    assert "[ 9.9.9.9 ]" in output.stdout
diff --git a/test/test_automated_install.bats b/test/test_automated_install.bats
new file mode 100755
index 00000000..5fb2cd3c
--- /dev/null
+++ b/test/test_automated_install.bats
@@ -0,0 +1,371 @@
+#!/usr/bin/env bats
+# Tests for basic-install.sh — translated from test_any_automated_install.py
+
+load 'libs/bats-support/load'
+load 'libs/bats-assert/load'
+load 'helpers/mocks'
+
+TICK="[✓]"
+CROSS="[✗]"
+INFO="[i]"
+
+FTL_BRANCH="development"
+
+CID=""
+
+setup() {
+    CID=$(docker run -d -t --cap-add=ALL "$IMAGE_TAG")
+}
+
+teardown() {
+    if [[ -n "$CID" ]]; then
+        docker rm -f "$CID" > /dev/null 2>&1 || true
+    fi
+}
+
+# ---------------------------------------------------------------------------
+
+@test "installer exits when no supported package manager found" {
+    docker exec "$CID" bash -c "rm -rf /usr/bin/apt-get /usr/bin/rpm /sbin/apk"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        package_manager_detect
+    "
+    assert_output --partial "${CROSS} No supported package manager found"
+}
+
+@test "installer continues when SELinux config file does not exist" {
+    run docker exec "$CID" bash -c "
+        rm -f /etc/selinux/config
+        source /opt/pihole/basic-install.sh
+        checkSelinux
+    "
+    assert_output --partial "${INFO} SELinux not detected"
+    assert_success
+}
+
+@test "fresh install: all necessary files are readable by pihole user" {
+    mock_command "$CID" dialog "*" "" "0"
+    mock_command_passthrough "$CID" git "pull" "" "0"
+    mock_command_2 "$CID" systemctl \
+        "enable pihole-FTL"  "" "0" \
+        "restart pihole-FTL" "" "0" \
+        "start pihole-FTL"   "" "0"
+    mock_command_2 "$CID" rc-service \
+        "pihole-FTL enable"  "" "0" \
+        "pihole-FTL restart" "" "0" \
+        "pihole-FTL start"   "" "0"
+
+    # Install man pages if available (best-effort)
+    docker exec "$CID" bash -c "command -v apt-get > /dev/null && apt-get install -qq man" || true
+    docker exec "$CID" bash -c "command -v dnf > /dev/null && dnf install -y man" || true
+    docker exec "$CID" bash -c "command -v yum > /dev/null && yum install -y man" || true
+    docker exec "$CID" bash -c "command -v apk > /dev/null && apk add mandoc man-pages" || true
+
+    docker exec "$CID" bash -c "echo '${FTL_BRANCH}' > /etc/pihole/ftlbranch"
+
+    run docker exec "$CID" bash -c "
+        export TERM=xterm
+        export DEBIAN_FRONTEND=noninteractive
+        umask 0027
+        runUnattended=true
+        source /opt/pihole/basic-install.sh > /dev/null
+        runUnattended=true
+        main
+        /opt/pihole/pihole-FTL-prestart.sh
+    "
+    assert_success
+
+    # Detect whether man was installed
+    local maninstalled=true
+    if [[ "$output" == *"${INFO} man not installed"* ]] || [[ "$output" == *"${INFO} man pages not installed"* ]]; then
+        maninstalled=false
+    fi
+
+    local piholeuser="pihole"
+    _check_perm() { docker exec "$CID" bash -c "su -s /bin/bash -c 'test -${1} ${2}' -p ${piholeuser}"; }
+
+    # /etc/pihole
+    run _check_perm r /etc/pihole; assert_success
+    run _check_perm x /etc/pihole; assert_success
+
+    # /etc/pihole/dhcp.leases
+    run _check_perm r /etc/pihole/dhcp.leases; assert_success
+
+    # /etc/pihole/install.log
+    run _check_perm r /etc/pihole/install.log; assert_success
+
+    # /etc/pihole/versions
+    run _check_perm r /etc/pihole/versions; assert_success
+
+    # /etc/pihole/macvendor.db
+    run _check_perm r /etc/pihole/macvendor.db; assert_success
+
+    # /etc/init.d/pihole-FTL
+    run _check_perm x /etc/init.d/pihole-FTL; assert_success
+    run _check_perm r /etc/init.d/pihole-FTL; assert_success
+
+    # man pages (if installed)
+    if [[ "$maninstalled" == "true" ]]; then
+        run _check_perm x /usr/local/share/man;      assert_success
+        run _check_perm r /usr/local/share/man;      assert_success
+        run _check_perm x /usr/local/share/man/man8; assert_success
+        run _check_perm r /usr/local/share/man/man8; assert_success
+        run _check_perm r /usr/local/share/man/man8/pihole.8; assert_success
+    fi
+
+    # /etc/cron.d
+    run _check_perm x /etc/cron.d/;      assert_success
+    run _check_perm r /etc/cron.d/;      assert_success
+    run _check_perm r /etc/cron.d/pihole; assert_success
+
+    # All files and directories under /etc/.pihole/
+    local dirs
+    dirs=$(docker exec "$CID" bash -c "find /etc/.pihole/ -type d -not -path '*/.*'" 2>/dev/null || true)
+    while IFS= read -r dir; do
+        [[ -z "$dir" ]] && continue
+        run _check_perm r "$dir"; assert_success
+        run _check_perm x "$dir"; assert_success
+        local files
+        files=$(docker exec "$CID" bash -c "find '${dir}' -maxdepth 1 -type f -exec echo {} \\;" 2>/dev/null || true)
+        while IFS= read -r file; do
+            [[ -z "$file" ]] && continue
+            run _check_perm r "$file"; assert_success
+        done <<< "$files"
+    done <<< "$dirs"
+}
+
+@test "package cache update succeeds without errors" {
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        package_manager_detect
+        update_package_cache
+    "
+    assert_output --partial "${TICK} Update local cache of available packages"
+    refute_output --partial "error"
+}
+
+@test "package cache update reports failure correctly" {
+    mock_command "$CID" apt-get "update" "" "1"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        package_manager_detect
+        update_package_cache
+    "
+    assert_output --partial "${CROSS} Update local cache of available packages"
+    assert_output --partial "Error: Unable to update package cache."
+}
+
+# ---------------------------------------------------------------------------
+# FTL architecture detection — one @test per arch (replaces parametrize)
+# ---------------------------------------------------------------------------
+
+_test_ftl_arch() {
+    local arch="$1" detected_string="$2" supported="$3"
+
+    mock_command "$CID" uname "-m" "$arch" "0"
+    mock_command_2 "$CID" readelf \
+        "-A /bin/sh"     "Tag_CPU_arch: ${arch}" "0" \
+        "-A /usr/bin/sh" "Tag_CPU_arch: ${arch}" "0" \
+        "-A /usr/sbin/sh" "Tag_CPU_arch: ${arch}" "0"
+    docker exec "$CID" bash -c "echo '${FTL_BRANCH}' > /etc/pihole/ftlbranch"
+
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        create_pihole_user
+        funcOutput=\$(get_binary_name)
+        binary=\"pihole-FTL\${funcOutput##*pihole-FTL}\"
+        theRest=\"\${funcOutput%pihole-FTL*}\"
+        FTLdetect \"\${binary}\" \"\${theRest}\"
+    "
+
+    if [[ "$supported" == "true" ]]; then
+        assert_output --partial "${INFO} FTL Checks..."
+        assert_output --partial "${TICK} Detected ${detected_string} architecture"
+        assert_output --partial "${TICK} Downloading and Installing FTL"
+    else
+        assert_output --partial "Not able to detect architecture (unknown: ${detected_string})"
+    fi
+}
+
+@test "FTL detects aarch64 architecture" {
+    _test_ftl_arch "aarch64" "AArch64 (64 Bit ARM)" "true"
+}
+
+@test "FTL detects ARMv6 architecture" {
+    _test_ftl_arch "armv6" "ARMv6" "true"
+}
+
+@test "FTL detects ARMv7l architecture" {
+    _test_ftl_arch "armv7l" "ARMv7 (or newer)" "true"
+}
+
+@test "FTL detects ARMv7 architecture" {
+    _test_ftl_arch "armv7" "ARMv7 (or newer)" "true"
+}
+
+@test "FTL detects ARMv8a architecture" {
+    _test_ftl_arch "armv8a" "ARMv7 (or newer)" "true"
+}
+
+@test "FTL detects x86_64 architecture" {
+    _test_ftl_arch "x86_64" "x86_64" "true"
+}
+
+@test "FTL detects riscv64 architecture" {
+    _test_ftl_arch "riscv64" "riscv64" "true"
+}
+
+@test "FTL reports unsupported architecture" {
+    _test_ftl_arch "mips" "mips" "false"
+}
+
+@test "FTL development binary is installed and responsive" {
+    docker exec "$CID" bash -c "echo '${FTL_BRANCH}' > /etc/pihole/ftlbranch"
+    docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        create_pihole_user
+        funcOutput=\$(get_binary_name)
+        binary=\"pihole-FTL\${funcOutput##*pihole-FTL}\"
+        theRest=\"\${funcOutput%pihole-FTL*}\"
+        FTLdetect \"\${binary}\" \"\${theRest}\"
+    "
+    run docker exec "$CID" bash -c '
+        VERSION=$(pihole-FTL version)
+        echo "${VERSION:0:1}"
+    '
+    assert_output --partial "v"
+}
+
+# ---------------------------------------------------------------------------
+# IPv6 detection
+# ---------------------------------------------------------------------------
+
+@test "IPv6 link-local only: blocking disabled" {
+    mock_command_2 "$CID" ip \
+        "-6 address" "inet6 fe80::d210:52fa:fe00:7ad7/64 scope link" "0"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        find_IPv6_information
+    "
+    assert_output --partial "Unable to find IPv6 ULA/GUA address"
+}
+
+@test "IPv6 ULA only: blocking enabled" {
+    mock_command_2 "$CID" ip \
+        "-6 address" "inet6 fda2:2001:5555:0:d210:52fa:fe00:7ad7/64 scope global" "0"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        find_IPv6_information
+    "
+    assert_output --partial "Found IPv6 ULA address"
+}
+
+@test "IPv6 GUA only: blocking enabled" {
+    mock_command_2 "$CID" ip \
+        "-6 address" "inet6 2003:12:1e43:301:d210:52fa:fe00:7ad7/64 scope global" "0"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        find_IPv6_information
+    "
+    assert_output --partial "Found IPv6 GUA address"
+}
+
+@test "IPv6 GUA + ULA: ULA takes precedence" {
+    mock_command_2 "$CID" ip \
+        "-6 address" "inet6 2003:12:1e43:301:d210:52fa:fe00:7ad7/64 scope global
+inet6 fda2:2001:5555:0:d210:52fa:fe00:7ad7/64 scope global" "0"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        find_IPv6_information
+    "
+    assert_output --partial "Found IPv6 ULA address"
+}
+
+@test "IPv6 ULA + GUA: ULA takes precedence" {
+    mock_command_2 "$CID" ip \
+        "-6 address" "inet6 fda2:2001:5555:0:d210:52fa:fe00:7ad7/64 scope global
+inet6 2003:12:1e43:301:d210:52fa:fe00:7ad7/64 scope global" "0"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        find_IPv6_information
+    "
+    assert_output --partial "Found IPv6 ULA address"
+}
+
+# ---------------------------------------------------------------------------
+# IP address validation
+# ---------------------------------------------------------------------------
+
+@test "valid_ip accepts and rejects addresses correctly" {
+    _valid() {
+        run docker exec "$CID" bash -c "source /opt/pihole/basic-install.sh; valid_ip '${1}'"
+        assert_success
+    }
+    _invalid() {
+        run docker exec "$CID" bash -c "source /opt/pihole/basic-install.sh; valid_ip '${1}'"
+        assert_failure
+    }
+
+    _valid  "192.168.1.1"
+    _valid  "127.0.0.1"
+    _valid  "255.255.255.255"
+    _invalid "255.255.255.256"
+    _invalid "255.255.256.255"
+    _invalid "255.256.255.255"
+    _invalid "256.255.255.255"
+    _invalid "1092.168.1.1"
+    _invalid "not an IP"
+    _invalid "8.8.8.8#"
+    _valid  "8.8.8.8#0"
+    _valid  "8.8.8.8#1"
+    _valid  "8.8.8.8#42"
+    _valid  "8.8.8.8#888"
+    _valid  "8.8.8.8#1337"
+    _valid  "8.8.8.8#65535"
+    _invalid "8.8.8.8#65536"
+    _invalid "8.8.8.8#-1"
+    _invalid "00.0.0.0"
+    _invalid "010.0.0.0"
+    _invalid "001.0.0.0"
+    _invalid "0.0.0.0#00"
+    _invalid "0.0.0.0#01"
+    _invalid "0.0.0.0#001"
+    _invalid "0.0.0.0#0001"
+    _invalid "0.0.0.0#00001"
+}
+
+# ---------------------------------------------------------------------------
+# Package dependency installation
+# ---------------------------------------------------------------------------
+
+@test "OS can install required Pi-hole dependency packages" {
+    mock_command "$CID" dialog "*" "" "0"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        package_manager_detect
+        update_package_cache
+        build_dependency_package
+        install_dependent_packages
+    "
+    refute_output --partial "No package"
+    assert_success
+}
+
+@test "OS can install and uninstall the Pi-hole meta package" {
+    mock_command "$CID" dialog "*" "" "0"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        package_manager_detect
+        update_package_cache
+        build_dependency_package
+        install_dependent_packages
+    "
+    assert_success
+
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/uninstall.sh
+        removeMetaPackage
+    "
+    assert_success
+}
diff --git a/test/test_centos_fedora_common_support.py b/test/test_centos_fedora_common_support.py
deleted file mode 100644
index a892db87..00000000
--- a/test/test_centos_fedora_common_support.py
+++ /dev/null
@@ -1,65 +0,0 @@
-from .conftest import (
-    tick_box,
-    cross_box,
-    mock_command,
-)
-
-
-def mock_selinux_config(state, host):
-    """
-    Creates a mock SELinux config file with expected content
-    """
-    # validate state string
-    valid_states = ["enforcing", "permissive", "disabled"]
-    assert state in valid_states
-    # getenforce returns the running state of SELinux
-    mock_command("getenforce", {"*": (state.capitalize(), "0")}, host)
-    # create mock configuration with desired content
-    host.run("""
-    mkdir /etc/selinux
-    echo "SELINUX={state}" > /etc/selinux/config
-    """.format(state=state.lower()))
-
-
-def test_selinux_enforcing_exit(host):
-    """
-    confirms installer prompts to exit when SELinux is Enforcing by default
-    """
-    mock_selinux_config("enforcing", host)
-    check_selinux = host.run("""
-    source /opt/pihole/basic-install.sh
-    checkSelinux
-    """)
-    expected_stdout = cross_box + " Current SELinux: enforcing"
-    assert expected_stdout in check_selinux.stdout
-    expected_stdout = "SELinux Enforcing detected, exiting installer"
-    assert expected_stdout in check_selinux.stdout
-    assert check_selinux.rc == 1
-
-
-def test_selinux_permissive(host):
-    """
-    confirms installer continues when SELinux is Permissive
-    """
-    mock_selinux_config("permissive", host)
-    check_selinux = host.run("""
-    source /opt/pihole/basic-install.sh
-    checkSelinux
-    """)
-    expected_stdout = tick_box + " Current SELinux: permissive"
-    assert expected_stdout in check_selinux.stdout
-    assert check_selinux.rc == 0
-
-
-def test_selinux_disabled(host):
-    """
-    confirms installer continues when SELinux is Disabled
-    """
-    mock_selinux_config("disabled", host)
-    check_selinux = host.run("""
-    source /opt/pihole/basic-install.sh
-    checkSelinux
-    """)
-    expected_stdout = tick_box + " Current SELinux: disabled"
-    assert expected_stdout in check_selinux.stdout
-    assert check_selinux.rc == 0
diff --git a/test/test_selinux.bats b/test/test_selinux.bats
new file mode 100755
index 00000000..08d205d1
--- /dev/null
+++ b/test/test_selinux.bats
@@ -0,0 +1,71 @@
+#!/usr/bin/env bats
+# Tests for SELinux handling in basic-install.sh.
+# Translated from test_centos_fedora_common_support.py.
+# Only runs on rhel family (CentOS/Fedora) — selected by run.sh.
+
+load 'libs/bats-support/load'
+load 'libs/bats-assert/load'
+load 'helpers/mocks'
+
+TICK="[✓]"
+CROSS="[✗]"
+
+CID=""
+
+setup() {
+    CID=$(docker run -d -t --cap-add=ALL "$IMAGE_TAG")
+}
+
+teardown() {
+    if [[ -n "$CID" ]]; then
+        docker rm -f "$CID" > /dev/null 2>&1 || true
+    fi
+}
+
+# ---------------------------------------------------------------------------
+# Helper: write a mock SELinux config with the given state
+# ---------------------------------------------------------------------------
+
+_mock_selinux_config() {
+    local state="$1"   # enforcing, permissive, or disabled
+    local capitalized
+    capitalized=$(echo "${state}" | awk '{print toupper(substr($0,1,1)) substr($0,2)}')
+    mock_command "$CID" getenforce "*" "$capitalized" "0"
+    docker exec "$CID" bash -c "
+        mkdir -p /etc/selinux
+        echo 'SELINUX=${state}' > /etc/selinux/config
+    "
+}
+
+# ---------------------------------------------------------------------------
+
+@test "SELinux enforcing: installer exits with error" {
+    _mock_selinux_config "enforcing"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        checkSelinux
+    "
+    assert_output --partial "${CROSS} Current SELinux: enforcing"
+    assert_output --partial "SELinux Enforcing detected, exiting installer"
+    assert_failure
+}
+
+@test "SELinux permissive: installer continues" {
+    _mock_selinux_config "permissive"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        checkSelinux
+    "
+    assert_output --partial "${TICK} Current SELinux: permissive"
+    assert_success
+}
+
+@test "SELinux disabled: installer continues" {
+    _mock_selinux_config "disabled"
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        checkSelinux
+    "
+    assert_output --partial "${TICK} Current SELinux: disabled"
+    assert_success
+}
diff --git a/test/test_utils.bats b/test/test_utils.bats
new file mode 100755
index 00000000..1b0098c0
--- /dev/null
+++ b/test/test_utils.bats
@@ -0,0 +1,60 @@
+#!/usr/bin/env bats
+# Tests for utils.sh — translated from test_any_utils.py
+
+load 'libs/bats-support/load'
+load 'libs/bats-assert/load'
+
+CID=""
+
+setup() {
+    CID=$(docker run -d -t --cap-add=ALL "$IMAGE_TAG")
+}
+
+teardown() {
+    if [[ -n "$CID" ]]; then
+        docker rm -f "$CID" > /dev/null 2>&1 || true
+    fi
+}
+
+# ---------------------------------------------------------------------------
+
+@test "addOrEditKeyValPair adds and replaces key-value pairs correctly" {
+    docker exec "$CID" bash -c "
+        source /opt/pihole/utils.sh
+        addOrEditKeyValPair './testoutput' 'KEY_ONE' 'value1'
+        addOrEditKeyValPair './testoutput' 'KEY_TWO' 'value2'
+        addOrEditKeyValPair './testoutput' 'KEY_ONE' 'value3'
+        addOrEditKeyValPair './testoutput' 'KEY_FOUR' 'value4'
+    "
+    run docker exec "$CID" bash -c "cat ./testoutput"
+    assert_output "KEY_ONE=value3
+KEY_TWO=value2
+KEY_FOUR=value4"
+}
+
+@test "getFTLPID returns -1 when FTL is not running" {
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/utils.sh
+        getFTLPID
+    "
+    assert_output "-1"
+}
+
+@test "setFTLConfigValue and getFTLConfigValue round-trip" {
+    # FTL must be installed for this test
+    docker exec "$CID" bash -c "
+        source /opt/pihole/basic-install.sh
+        create_pihole_user
+        funcOutput=\$(get_binary_name)
+        echo 'development' > /etc/pihole/ftlbranch
+        binary=\"pihole-FTL\${funcOutput##*pihole-FTL}\"
+        theRest=\"\${funcOutput%pihole-FTL*}\"
+        FTLdetect \"\${binary}\" \"\${theRest}\"
+    "
+    run docker exec "$CID" bash -c "
+        source /opt/pihole/utils.sh
+        setFTLConfigValue 'dns.upstreams' '[\"9.9.9.9\"]' > /dev/null
+        getFTLConfigValue 'dns.upstreams'
+    "
+    assert_output --partial "[ 9.9.9.9 ]"
+}
diff --git a/test/tox.alpine_3_21.ini b/test/tox.alpine_3_21.ini
deleted file mode 100644
index b0465f6c..00000000
--- a/test/tox.alpine_3_21.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _alpine_3_21.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.alpine_3_22.ini b/test/tox.alpine_3_22.ini
deleted file mode 100644
index 38f66c4f..00000000
--- a/test/tox.alpine_3_22.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _alpine_3_22.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.alpine_3_23.ini b/test/tox.alpine_3_23.ini
deleted file mode 100644
index d7208064..00000000
--- a/test/tox.alpine_3_23.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _alpine_3_23.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.centos_10.ini b/test/tox.centos_10.ini
deleted file mode 100644
index 1a15c766..00000000
--- a/test/tox.centos_10.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _centos_10.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py
diff --git a/test/tox.centos_9.ini b/test/tox.centos_9.ini
deleted file mode 100644
index 81dd0bd2..00000000
--- a/test/tox.centos_9.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _centos_9.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py
diff --git a/test/tox.debian_11.ini b/test/tox.debian_11.ini
deleted file mode 100644
index a8909d46..00000000
--- a/test/tox.debian_11.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _debian_11.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.debian_12.ini b/test/tox.debian_12.ini
deleted file mode 100644
index 707e8710..00000000
--- a/test/tox.debian_12.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _debian_12.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.debian_13.ini b/test/tox.debian_13.ini
deleted file mode 100644
index dcfbf816..00000000
--- a/test/tox.debian_13.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _debian_13.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.fedora_40.ini b/test/tox.fedora_40.ini
deleted file mode 100644
index 462c5ff1..00000000
--- a/test/tox.fedora_40.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _fedora_40.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py
diff --git a/test/tox.fedora_41.ini b/test/tox.fedora_41.ini
deleted file mode 100644
index f70da227..00000000
--- a/test/tox.fedora_41.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _fedora_41.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py
diff --git a/test/tox.fedora_42.ini b/test/tox.fedora_42.ini
deleted file mode 100644
index 67eb77e4..00000000
--- a/test/tox.fedora_42.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _fedora_42.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py
diff --git a/test/tox.fedora_43.ini b/test/tox.fedora_43.ini
deleted file mode 100644
index efbb0471..00000000
--- a/test/tox.fedora_43.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _fedora_43.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py
diff --git a/test/tox.ubuntu_20.ini b/test/tox.ubuntu_20.ini
deleted file mode 100644
index bcfb1d2a..00000000
--- a/test/tox.ubuntu_20.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _ubuntu_20.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.ubuntu_22.ini b/test/tox.ubuntu_22.ini
deleted file mode 100644
index c8e71abb..00000000
--- a/test/tox.ubuntu_22.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _ubuntu_22.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.ubuntu_24.ini b/test/tox.ubuntu_24.ini
deleted file mode 100644
index 5b7e77a9..00000000
--- a/test/tox.ubuntu_24.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[tox]
-envlist = py3
-
-[testenv:py3]
-allowlist_externals = docker
-deps = -rrequirements.txt
-setenv =
-    COLUMNS=120
-commands = docker buildx build --load --progress plain -f _ubuntu_24.Dockerfile -t pytest_pihole:test_container ../
-           pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py