Adding new unit tests to the SourceMap and SourceMapFactory classes.

Author: ashgti

src/common/sourceMaps/sourceMap.test.ts

@@ -0,0 +1,45 @@
+/*---------------------------------------------------------
+ * Copyright (C) Microsoft Corporation. All rights reserved.
+ *--------------------------------------------------------*/
+import { expect } from 'chai';
+import {
+  RawIndexMap, RawSourceMap, SourceMapConsumer
+} from 'source-map';
+import { SourceMap } from './sourceMap';
+
+const sampleSource = 'console.log(123)';
+const basicSourceMap: RawSourceMap = {
+  version: 3,
+  sources: ['one.js'],
+  sourcesContent: [sampleSource],
+  names: [],
+  file: '',
+  mappings: '',
+};
+const indexedSourceMap: RawIndexMap = {
+  version: 3,
+  sections: [{
+    offset: { line: 0, column: 100},
+    map: basicSourceMap,
+  }],
+};
+
+describe('SourceMap', () => {
+  it('loads basic source-maps', async () => {
+    const map = new SourceMap(await new SourceMapConsumer(basicSourceMap), {
+      sourceMapUrl: JSON.stringify(basicSourceMap),
+      compiledPath: 'one.js',
+    }, '', ['one.js'], false);
+
+    expect(map.sourceContentFor('one.js')).to.eq(sampleSource);
+  });
+
+  it('loads indexed source-maps', async () => {
+    const map = new SourceMap(await new SourceMapConsumer(indexedSourceMap), {
+      sourceMapUrl: JSON.stringify(indexedSourceMap),
+      compiledPath: 'one.js',
+    }, '', ['one.js'], false);
+
+    expect(map.sourceContentFor('one.js')).to.eq(sampleSource);
+  });
+});

src/common/sourceMaps/sourceMapFactory.test.ts

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+/*---------------------------------------------------------
+ * Copyright (C) Microsoft Corporation. All rights reserved.
+ *--------------------------------------------------------*/
+
+import { expect } from 'chai';
+import dataUriToBuffer from 'data-uri-to-buffer';
+import { RawIndexMap, RawSourceMap } from 'source-map';
+import Dap from '../../dap/api';
+import { stubbedDapApi, StubDapApi } from '../../dap/stubbedApi';
+import { Logger } from '../logging/logger';
+import { SourceMapFactory } from './sourceMapFactory';
+
+const sampleSource = 'console.log(123)';
+const basicSourceMap: RawSourceMap = {
+  version: 3,
+  sources: ['one.js'],
+  sourcesContent: [sampleSource],
+  names: [],
+  file: '',
+  mappings: '',
+};
+const indexedSourceMap: RawIndexMap = {
+  version: 3,
+  sections: [{
+    offset: { line: 0, column: 100},
+    map: basicSourceMap,
+  }],
+};
+
+describe('SourceMapFactory', () => {
+  let stubDap: StubDapApi;
+
+  beforeEach(() => {
+    stubDap = stubbedDapApi();
+  })
+
+  it('loads source-maps', async () => {
+    const factory = new SourceMapFactory({
+      rebaseRemoteToLocal() { return '/tmp/local'; },
+      rebaseLocalToRemote() { return '/tmp/remote'; },
+      shouldResolveSourceMap() { return true; },
+      urlToAbsolutePath() { return Promise.resolve('/tmp/abs');},
+      absolutePathToUrlRegexp() { return undefined; },
+    }, {
+      fetch(url) { return Promise.resolve({ ok: true, body: dataUriToBuffer(url).toString('utf8'), url: url, statusCode: 500 }); },
+      fetchJson<T>() { return Promise.resolve({ ok: true, body: {} as T, url: '', statusCode: 200 }); },
+    }, stubDap as unknown as Dap.Api, Logger.null);
+
+    const map = await factory.load({
+      sourceMapUrl: 'data:application/json;base64,' + Buffer.from(JSON.stringify(indexedSourceMap)).toString('base64'),
+      compiledPath: '/tmp/local/one.js',
+    });
+
+    expect(map.sources).to.eql(['one.js']);
+  });
+});