import { describe, test, before, after } from 'node:test';
import assert from 'node:assert';
import { spawn } from 'child_process';
import { MockGitLabServer, findMockServerPort } from './utils/mock-gitlab-server.js';
const MOCK_TOKEN = 'glpat-mock-token-12345';
const TEST_PROJECT_ID = '123';
const TEST_MR_IID = '1';
// Helper to call get_merge_request_diffs
async function callGetMergeRequestDiffs(args: Record<string, any> = {}, env: NodeJS.ProcessEnv) {
return new Promise<any[]>((resolve, reject) => {
const proc = spawn('node', ['build/index.js'], {
stdio: ['pipe', 'pipe', 'pipe'],
env: {
...process.env,
...env,
GITLAB_READ_ONLY_MODE: 'true'
}
});
let output = '';
let errorOutput = '';
proc.stdout?.on('data', d => output += d);
proc.stderr?.on('data', d => errorOutput += d);
proc.on('close', (code) => {
if (code !== 0) return reject(new Error(`Process exited with code ${code}: ${errorOutput}`));
// Find the JSON line in stdout
const line = output.split('\n').find(l => l.startsWith('{'));
if (!line) return reject(new Error('No JSON output found'));
try {
const response = JSON.parse(line);
if (response.error) {
reject(response.error);
} else {
// Parse the tool result content
const content = response.result?.content?.[0]?.text;
if (content) {
try {
resolve(JSON.parse(content));
} catch (e) {
reject(new Error(`Failed to parse tool output JSON: ${content}`));
}
} else {
resolve(response.result);
}
}
} catch (e) {
reject(e);
}
});
proc.stdin?.end(JSON.stringify({
jsonrpc: "2.0", id: 1, method: "tools/call",
params: { name: "get_merge_request_diffs", arguments: args }
}) + '\n');
});
}
describe('get_merge_request_diffs with excluded_file_patterns', () => {
let mockGitLab: MockGitLabServer;
let mockGitLabUrl: string;
before(async () => {
const mockPort = await findMockServerPort(9100);
mockGitLab = new MockGitLabServer({
port: mockPort,
validTokens: [MOCK_TOKEN]
});
await mockGitLab.start();
mockGitLabUrl = mockGitLab.getUrl();
});
after(async () => {
await mockGitLab.stop();
});
test('returns all diffs without filtering', async () => {
const diffs = await callGetMergeRequestDiffs(
{ project_id: TEST_PROJECT_ID, merge_request_iid: TEST_MR_IID },
{
GITLAB_API_URL: `${mockGitLabUrl}/api/v4`,
GITLAB_PERSONAL_ACCESS_TOKEN: MOCK_TOKEN
}
);
assert.ok(Array.isArray(diffs), 'Response should be an array');
assert.strictEqual(diffs.length, 4, 'Should return 4 diffs');
assert.strictEqual(diffs[0].new_path, 'src/index.ts');
assert.strictEqual(diffs[1].new_path, 'vendor/package/file.js');
assert.strictEqual(diffs[2].new_path, 'README.md');
assert.strictEqual(diffs[3].new_path, 'package-lock.json');
});
test('filters out vendor folder with ^vendor/ pattern', async () => {
const diffs = await callGetMergeRequestDiffs(
{
project_id: TEST_PROJECT_ID,
merge_request_iid: TEST_MR_IID,
excluded_file_patterns: ['^vendor/']
},
{
GITLAB_API_URL: `${mockGitLabUrl}/api/v4`,
GITLAB_PERSONAL_ACCESS_TOKEN: MOCK_TOKEN
}
);
assert.ok(Array.isArray(diffs), 'Response should be an array');
assert.strictEqual(diffs.length, 3, 'Should return 3 diffs (vendor filtered out)');
assert.strictEqual(diffs[0].new_path, 'src/index.ts');
assert.strictEqual(diffs[1].new_path, 'README.md');
assert.strictEqual(diffs[2].new_path, 'package-lock.json');
});
test('filters out package-lock.json with package-lock pattern', async () => {
const diffs = await callGetMergeRequestDiffs(
{
project_id: TEST_PROJECT_ID,
merge_request_iid: TEST_MR_IID,
excluded_file_patterns: ['package-lock\\.json']
},
{
GITLAB_API_URL: `${mockGitLabUrl}/api/v4`,
GITLAB_PERSONAL_ACCESS_TOKEN: MOCK_TOKEN
}
);
assert.ok(Array.isArray(diffs), 'Response should be an array');
assert.strictEqual(diffs.length, 3, 'Should return 3 diffs (package-lock.json filtered out)');
assert.strictEqual(diffs[0].new_path, 'src/index.ts');
assert.strictEqual(diffs[1].new_path, 'vendor/package/file.js');
assert.strictEqual(diffs[2].new_path, 'README.md');
});
test('filters multiple patterns at once', async () => {
const diffs = await callGetMergeRequestDiffs(
{
project_id: TEST_PROJECT_ID,
merge_request_iid: TEST_MR_IID,
excluded_file_patterns: ['^vendor/', 'package-lock\\.json']
},
{
GITLAB_API_URL: `${mockGitLabUrl}/api/v4`,
GITLAB_PERSONAL_ACCESS_TOKEN: MOCK_TOKEN
}
);
assert.ok(Array.isArray(diffs), 'Response should be an array');
assert.strictEqual(diffs.length, 2, 'Should return 2 diffs (vendor and package-lock filtered out)');
assert.strictEqual(diffs[0].new_path, 'src/index.ts');
assert.strictEqual(diffs[1].new_path, 'README.md');
});
});
