import { TraceSpan } from '../types/trace'; import { findHeaderTags } from './trace-viewer'; describe('findHeaderTags()', () => { it('return empty object when no spans are provided', () => { const spans: TraceSpan[] = []; expect(findHeaderTags(spans)).toEqual({}); }); it('return header tags when spans follow the OTEL semantic convention', () => { const spans: TraceSpan[] = [ // @ts-ignore { tags: [ { key: 'http.request.method', value: 'GET' }, { key: 'http.response.status_code', value: '200' }, { key: 'http.route', value: '/api/users' }, ], }, ]; expect(findHeaderTags(spans)).toEqual({ method: [{ key: 'http.request.method', value: 'GET' }], status: [{ key: 'http.response.status_code', value: '200' }], url: [{ key: 'http.route', value: '/api/users' }], }); }); it('return header tags when spans follow the alternative convention', () => { const spans: TraceSpan[] = [ // @ts-ignore { tags: [ { key: 'http.method', value: 'GET' }, { key: 'http.status_code', value: '200' }, { key: 'http.path', value: '/api/users' }, ], }, // @ts-ignore { tags: [ { key: 'http.method', value: 'POST' }, { key: 'http.status_code', value: '404' }, { key: 'http.path', value: '/api/posts' }, ], }, ]; expect(findHeaderTags(spans)).toEqual({ method: [{ key: 'http.method', value: 'GET' }], status: [{ key: 'http.status_code', value: '200' }], url: [{ key: 'http.path', value: '/api/users' }], }); }); it('return header tags, prioritizing the spans that follow the OTEL semantinc convention', () => { const spans: TraceSpan[] = [ // @ts-ignore { tags: [ { key: 'http.method', value: 'GET' }, { key: 'http.status', value: '200' }, { key: 'http.path', value: '/api/users' }, ], }, // @ts-ignore { tags: [ { key: 'http.request.method', value: 'POST' }, { key: 'http.response.status_code', value: '404' }, { key: 'http.route', value: '/api/users' }, ], }, ]; expect(findHeaderTags(spans)).toEqual({ method: [{ key: 'http.request.method', value: 'POST' }], status: [{ key: 'http.response.status_code', value: '404' }], url: [{ key: 'http.route', value: '/api/users' }], }); }); });