Complete automated testing

tests/clean.bats

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+#!/usr/bin/env bats
+
+setup_file() {
+  PROJECT_ROOT="$(cd "${BATS_TEST_DIRNAME}/.." && pwd)"
+  export PROJECT_ROOT
+
+  ORIGINAL_HOME="${HOME:-}"
+  export ORIGINAL_HOME
+
+  HOME="$(mktemp -d "${BATS_TEST_DIRNAME}/tmp-clean-home.XXXXXX")"
+  export HOME
+
+  mkdir -p "$HOME"
+}
+
+teardown_file() {
+  rm -rf "$HOME"
+  if [[ -n "${ORIGINAL_HOME:-}" ]]; then
+    export HOME="$ORIGINAL_HOME"
+  fi
+}
+
+setup() {
+  export TERM="xterm-256color"
+  rm -rf "${HOME:?}"/*
+  rm -rf "$HOME/Library" "$HOME/.config"
+  mkdir -p "$HOME/Library/Caches" "$HOME/.config/mole"
+}
+
+@test "mo clean --dry-run skips system cleanup in non-interactive mode" {
+  run env HOME="$HOME" "$PROJECT_ROOT/mole" clean --dry-run
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"Dry Run Mode"* ]]
+  [[ "$output" != *"Deep system-level cleanup"* ]]
+}
+
+@test "mo clean --dry-run reports user cache without deleting it" {
+  mkdir -p "$HOME/Library/Caches/TestApp"
+  echo "cache data" > "$HOME/Library/Caches/TestApp/cache.tmp"
+
+  run env HOME="$HOME" "$PROJECT_ROOT/mole" clean --dry-run
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"User app cache"* ]]
+  [[ "$output" == *"Potential space"* ]]
+  [ -f "$HOME/Library/Caches/TestApp/cache.tmp" ]
+}
+
+@test "mo clean honors whitelist entries" {
+  mkdir -p "$HOME/Library/Caches/WhitelistedApp"
+  echo "keep me" > "$HOME/Library/Caches/WhitelistedApp/data.tmp"
+
+  cat > "$HOME/.config/mole/whitelist" <<EOF
+$HOME/Library/Caches/WhitelistedApp*
+EOF
+
+  run env HOME="$HOME" "$PROJECT_ROOT/mole" clean --dry-run
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"Protected: 1"* ]]
+  [ -f "$HOME/Library/Caches/WhitelistedApp/data.tmp" ]
+}