grafana/public/app/plugins/datasource/zipkin/utils/graphTransform.test.ts

import { createGraphFrames } from './graphTransform';
import {
  testResponse,
  testResponseEdgesFields,
  testResponseNodesFields,
  toEdgesFrame,
  toNodesFrame,
} from './testResponse';
import { ZipkinSpan } from '../types';

describe('createGraphFrames', () => {
  it('transforms basic response into nodes and edges frame', async () => {
    const frames = createGraphFrames(testResponse);
    expect(frames.length).toBe(2);
    expect(frames[0].fields).toMatchObject(testResponseNodesFields);
    expect(frames[1].fields).toMatchObject(testResponseEdgesFields);
  });

  it('handles single span response', async () => {
    const frames = createGraphFrames(singleSpanResponse);
    expect(frames.length).toBe(2);
    expect(frames[0].fields).toMatchObject(
      toNodesFrame([
        ['3fa414edcef6ad90'],
        ['tempo-querier'],
        ['HTTP GET - api_traces_traceid'],
        ['1049.14ms (100%)'],
        ['1049.14ms (100%)'],
        [1],
      ])
    );
    expect(frames[1].fields).toMatchObject(toEdgesFrame([[], [], []]));
  });

  it('handles missing spans', async () => {
    const frames = createGraphFrames(missingSpanResponse);
    expect(frames.length).toBe(2);
    expect(frames[0].length).toBe(2);
    expect(frames[1].length).toBe(0);
  });
});

export const singleSpanResponse: ZipkinSpan[] = [
  {
    traceId: '3fa414edcef6ad90',
    id: '3fa414edcef6ad90',
    name: 'HTTP GET - api_traces_traceid',
    timestamp: 1605873894680409,
    duration: 1049141,
    tags: {
      component: 'gRPC',
      spanKind: 'client',
    },
    localEndpoint: {
      serviceName: 'tempo-querier',
    },
  },
];

export const missingSpanResponse: ZipkinSpan[] = [
  {
    traceId: '3fa414edcef6ad90',
    id: '1',
    name: 'HTTP GET - api_traces_traceid',
    timestamp: 1605873894680409,
    duration: 1049141,
  },
  {
    traceId: '3fa414edcef6ad90',
    id: '2',
    name: 'HTTP GET - api_traces_traceid',
    parentId: '3',
    timestamp: 1605873894680409,
    duration: 1049141,
  },
];