import assert from 'assert';
import {
isAllowedImageMimeType,
normalizeImageMimeType
} from '../dist/ui/file-preview/src/image-preview.js';
async function testAllowedImageMimeTypes() {
console.log('\n--- Test: image preview allowlist ---');
assert.strictEqual(isAllowedImageMimeType('image/png'), true, 'PNG should be allowlisted');
assert.strictEqual(isAllowedImageMimeType('image/jpeg'), true, 'JPEG should be allowlisted');
assert.strictEqual(isAllowedImageMimeType('image/gif'), true, 'GIF should be allowlisted');
assert.strictEqual(isAllowedImageMimeType('image/webp'), true, 'WEBP should be allowlisted');
assert.strictEqual(isAllowedImageMimeType('image/bmp'), true, 'BMP should be allowlisted');
assert.strictEqual(isAllowedImageMimeType('image/svg+xml'), true, 'SVG should be allowlisted');
assert.strictEqual(isAllowedImageMimeType('image/svg'), true, 'Non-standard SVG MIME should be treated as allowlisted');
assert.strictEqual(isAllowedImageMimeType('IMAGE/PNG; charset=utf-8'), true, 'MIME normalization should keep allowlisted types valid');
console.log('✓ image allowlist accepts expected MIME types');
}
async function testDisallowedImageMimeTypes() {
console.log('\n--- Test: disallowed image MIME types ---');
assert.strictEqual(isAllowedImageMimeType('image/tiff'), false, 'TIFF should be blocked');
assert.strictEqual(isAllowedImageMimeType('text/plain'), false, 'Non-image MIME should be blocked');
assert.strictEqual(isAllowedImageMimeType(undefined), false, 'Undefined MIME should be blocked');
assert.strictEqual(isAllowedImageMimeType(''), false, 'Empty MIME should be blocked');
console.log('✓ disallowed MIME types fail closed');
}
async function testMimeNormalization() {
console.log('\n--- Test: MIME normalization ---');
assert.strictEqual(normalizeImageMimeType('IMAGE/JPEG; charset=UTF-8'), 'image/jpeg', 'Normalization should lowercase and strip parameters');
assert.strictEqual(normalizeImageMimeType(' image/webp '), 'image/webp', 'Normalization should trim whitespace');
assert.strictEqual(normalizeImageMimeType(undefined), '', 'Normalization should return empty string for undefined input');
console.log('✓ MIME normalization is stable');
}
export default async function runTests() {
try {
await testAllowedImageMimeTypes();
await testDisallowedImageMimeTypes();
await testMimeNormalization();
console.log('\n✅ File preview image runtime tests passed!');
return true;
} catch (error) {
const message = error instanceof Error ? error.message : String(error);
console.error('❌ Test failed:', message);
if (error instanceof Error && error.stack) {
console.error(error.stack);
}
return false;
}
}
if (import.meta.url === `file://${process.argv[1]}`) {
runTests().then((success) => {
process.exit(success ? 0 : 1);
}).catch((error) => {
console.error('❌ Unhandled error:', error);
process.exit(1);
});
}
