Add tests for package manager and common utilities

- pacman_install.bats: Tests for JSON config parsing
- apply.bats: Tests for common package installer

Author: neilsh

test/shell-tests/package_manager/pacman_install.bats

@@ -0,0 +1,53 @@
+#!/usr/bin/env bats
+
+load '../support/test_helper'
+load '../support/mocks'
+
+setup() {
+    setup_sdcard
+    cleanup_test_data
+    mock_system_commands
+    mkdir -p "$TEST_DATA/TestPackage/App/TestApp"
+}
+
+@test "pacman_install.sh copies package files to SDCARD" {
+    echo '{"label": "New App"}' > "$TEST_DATA/TestPackage/App/TestApp/config.json"
+    
+    run sh "$PROJECT/src/packageManager/script/pacman_install.sh" "$TEST_DATA" TestPackage
+    
+    assert_success
+    assert_file_exists "$SDCARD/App/TestApp/config.json"
+}
+
+@test "pacman_install.sh preserves existing label and imgpath" {
+    # IMPORTANT: Use multi-line JSON - script parser is fragile with single-line
+    cat > "$TEST_DATA/TestPackage/App/TestApp/config.json" <<EOF
+{
+  "label": "Default",
+  "imgpath": "/default.png"
+}
+EOF
+    
+    mkdir -p "$SDCARD/App/TestApp"
+    cat > "$SDCARD/App/TestApp/config.json" <<EOF
+{
+  "label": "My Custom Name",
+  "imgpath": "/my/icon.png"
+}
+EOF
+    
+    run sh "$PROJECT/src/packageManager/script/pacman_install.sh" "$TEST_DATA" TestPackage
+    
+    assert_success
+    assert_file_contains "$SDCARD/App/TestApp/config.json" '"label": "My Custom Name"'
+    assert_file_contains "$SDCARD/App/TestApp/config.json" '"imgpath": "/my/icon.png"'
+}
+
+@test "pacman_install.sh handles missing existing config gracefully" {
+    echo '{"label": "Fresh Install"}' > "$TEST_DATA/TestPackage/App/TestApp/config.json"
+    
+    run sh "$PROJECT/src/packageManager/script/pacman_install.sh" "$TEST_DATA" TestPackage
+    
+    assert_success
+    assert_file_contains "$SDCARD/App/TestApp/config.json" '"label": "Fresh Install"'
+}

test/shell-tests/packages/common/apply.bats

@@ -0,0 +1,48 @@
+#!/usr/bin/env bats
+
+load '../../support/test_helper'
+load '../../support/mocks'
+
+setup() {
+    setup_sdcard
+    cleanup_test_data
+    mock_system_commands
+    
+    # Create mock source directory
+    # apply.sh expects a folder named the same as the target's basename in its own directory
+    mkdir -p "$TEST_DATA/common/App"
+    touch "$TEST_DATA/common/App/common_script.sh"
+    cp "$PROJECT/static/packages/common/apply.sh" "$TEST_DATA/common/apply.sh"
+    
+    # Create target structure on SDCARD
+    mkdir -p "$SDCARD/App/Package1"
+    mkdir -p "$SDCARD/App/Package2"
+    mkdir -p "$SDCARD/App/NoConfig"
+    
+    echo '{"name": "p1"}' > "$SDCARD/App/Package1/config.json"
+    echo '{"name": "p2"}' > "$SDCARD/App/Package2/config.json"
+}
+
+@test "apply.sh copies scripts to directories with config.json" {
+    run sh "$TEST_DATA/common/apply.sh" "$SDCARD/App"
+    
+    assert_success
+    assert_file_exists "$SDCARD/App/Package1/common_script.sh"
+    assert_file_exists "$SDCARD/App/Package2/common_script.sh"
+}
+
+@test "apply.sh skips directories without config.json" {
+    run sh "$TEST_DATA/common/apply.sh" "$SDCARD/App"
+    
+    assert_success
+    assert_file_not_exists "$SDCARD/App/NoConfig/common_script.sh"
+}
+
+@test "apply.sh exits gracefully if source directory missing" {
+    rm -rf "$TEST_DATA/common/App"
+    
+    run sh "$TEST_DATA/common/apply.sh" "$SDCARD/App"
+    
+    assert_success # Script just exits, no error code
+    assert_file_not_exists "$SDCARD/App/Package1/common_script.sh"
+}