import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { promises as fs } from 'fs';
import path from 'path';
import os from 'os';
import { CodebaseIndexer } from '../src/core/indexer';
describe('CodebaseIndexer.detectMetadata', () => {
let tempDir: string;
beforeEach(async () => {
tempDir = await fs.mkdtemp(path.join(os.tmpdir(), 'indexer-test-'));
});
afterEach(async () => {
await fs.rm(tempDir, { recursive: true, force: true });
});
describe('metadata detection', () => {
it('should detect project name from directory', async () => {
await fs.writeFile(
path.join(tempDir, 'package.json'),
JSON.stringify({ name: 'test-project', dependencies: {} })
);
const indexer = new CodebaseIndexer({ rootPath: tempDir });
const metadata = await indexer.detectMetadata();
expect(metadata.rootPath).toBe(tempDir);
expect(metadata.name).toBe(path.basename(tempDir));
});
it('should merge metadata from multiple analyzers', async () => {
await fs.writeFile(
path.join(tempDir, 'package.json'),
JSON.stringify({
name: 'angular-project',
dependencies: {
'@angular/core': '^17.0.0',
'@angular/common': '^17.0.0',
},
})
);
const indexer = new CodebaseIndexer({ rootPath: tempDir });
const metadata = await indexer.detectMetadata();
expect(metadata).toBeDefined();
expect(metadata.architecture).toBeDefined();
expect(metadata.architecture.layers).toBeDefined();
});
it('should handle projects without package.json', async () => {
const indexer = new CodebaseIndexer({ rootPath: tempDir });
const metadata = await indexer.detectMetadata();
expect(metadata).toBeDefined();
expect(metadata.rootPath).toBe(tempDir);
expect(metadata.dependencies).toEqual([]);
});
it('should merge languages from all analyzers', async () => {
await fs.writeFile(
path.join(tempDir, 'package.json'),
JSON.stringify({ name: 'test' })
);
await fs.writeFile(
path.join(tempDir, 'app.ts'),
'export const app = "test";'
);
const indexer = new CodebaseIndexer({ rootPath: tempDir });
const metadata = await indexer.detectMetadata();
expect(Array.isArray(metadata.languages)).toBe(true);
});
});
describe('merge behavior', () => {
it('should deduplicate merged arrays', async () => {
await fs.writeFile(
path.join(tempDir, 'package.json'),
JSON.stringify({ name: 'test' })
);
const indexer = new CodebaseIndexer({ rootPath: tempDir });
const metadata = await indexer.detectMetadata();
const uniqueStyleGuides = [...new Set(metadata.styleGuides)];
expect(metadata.styleGuides.length).toBe(uniqueStyleGuides.length);
});
it('should preserve customMetadata from analyzers', async () => {
await fs.writeFile(
path.join(tempDir, 'package.json'),
JSON.stringify({ name: 'test' })
);
const indexer = new CodebaseIndexer({ rootPath: tempDir });
const metadata = await indexer.detectMetadata();
expect(metadata.customMetadata).toBeDefined();
expect(typeof metadata.customMetadata).toBe('object');
});
});
});
