89 lines
2.6 KiB
JavaScript
89 lines
2.6 KiB
JavaScript
/* globals assert, beforeEach, describe, it */
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import { _PerfService } from "content-src/lib/perf-service";
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import { FakePerformance } from "test/unit/utils.js";
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let perfService;
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describe("_PerfService", () => {
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let sandbox;
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let fakePerfObj;
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beforeEach(() => {
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sandbox = sinon.createSandbox();
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fakePerfObj = new FakePerformance();
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perfService = new _PerfService({ performanceObj: fakePerfObj });
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});
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afterEach(() => {
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sandbox.restore();
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});
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describe("#absNow", () => {
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it("should return a number > the time origin", () => {
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const absNow = perfService.absNow();
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assert.isAbove(absNow, perfService.timeOrigin);
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});
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});
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describe("#getEntriesByName", () => {
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it("should call getEntriesByName on the appropriate Window.performance", () => {
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sandbox.spy(fakePerfObj, "getEntriesByName");
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perfService.getEntriesByName("monkey", "mark");
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assert.calledOnce(fakePerfObj.getEntriesByName);
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assert.calledWithExactly(fakePerfObj.getEntriesByName, "monkey", "mark");
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});
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it("should return entries with the given name", () => {
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sandbox.spy(fakePerfObj, "getEntriesByName");
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perfService.mark("monkey");
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perfService.mark("dog");
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let marks = perfService.getEntriesByName("monkey", "mark");
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assert.isArray(marks);
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assert.lengthOf(marks, 1);
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assert.propertyVal(marks[0], "name", "monkey");
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});
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});
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describe("#getMostRecentAbsMarkStartByName", () => {
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it("should throw an error if there is no mark with the given name", () => {
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function bogusGet() {
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perfService.getMostRecentAbsMarkStartByName("rheeeet");
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}
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assert.throws(bogusGet, Error, /No marks with the name/);
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});
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it("should return the Number from the most recent mark with the given name + the time origin", () => {
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perfService.mark("dog");
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perfService.mark("dog");
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let absMarkStart = perfService.getMostRecentAbsMarkStartByName("dog");
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// 2 because we want the result of the 2nd call to mark, and an instance
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// of FakePerformance just returns the number of time mark has been
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// called.
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assert.equal(absMarkStart - perfService.timeOrigin, 2);
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});
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});
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describe("#mark", () => {
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it("should call the wrapped version of mark", () => {
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sandbox.spy(fakePerfObj, "mark");
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perfService.mark("monkey");
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assert.calledOnce(fakePerfObj.mark);
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assert.calledWithExactly(fakePerfObj.mark, "monkey");
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});
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});
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describe("#timeOrigin", () => {
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it("should get the origin of the wrapped performance object", () => {
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assert.equal(perfService.timeOrigin, fakePerfObj.timeOrigin);
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});
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});
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});
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