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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-reporting</title>
<script src="/test/common-test-setup.js"></script>
<script src="/bower_components/webcomponentsjs/custom-elements-es5-adapter.js"></script>

<script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<link rel="import" href="gr-reporting.html">

<script>void(0);</script>

<test-fixture id="basic">
  <template>
    <gr-reporting></gr-reporting>
  </template>
</test-fixture>

<script>
  suite('gr-reporting tests', () => {
    let element;
    let sandbox;
    let clock;
    let fakePerformance;

    const NOW_TIME = 100;

    setup(() => {
      sandbox = sinon.sandbox.create();
      clock = sinon.useFakeTimers(NOW_TIME);
      element = fixture('basic');
      element._baselines = Object.assign({}, GrReporting.STARTUP_TIMERS);
      fakePerformance = {
        navigationStart: 1,
        loadEventEnd: 2,
      };
      sinon.stub(element, 'performanceTiming',
          {get() { return fakePerformance; }});
      sandbox.stub(element, 'reporter');
    });

    teardown(() => {
      sandbox.restore();
      clock.restore();
    });

    test('appStarted', () => {
      sandbox.stub(element, 'now').returns(42);
      element.appStarted(true);
      assert.isTrue(
          element.reporter.calledWithExactly(
              'timing-report', 'UI Latency', 'App Started', 42
      ));
      assert.isTrue(
          element.reporter.calledWithExactly(
              'lifecycle', 'Page Visibility', 'hidden'
      ));
    });

    test('WebComponentsReady', () => {
      sandbox.stub(element, 'now').returns(42);
      element.timeEnd('WebComponentsReady');
      assert.isTrue(element.reporter.calledWithExactly(
          'timing-report', 'UI Latency', 'WebComponentsReady', 42
      ));
    });

    test('pageLoaded', () => {
      element.pageLoaded();
      assert.isTrue(
          element.reporter.calledWithExactly(
              'timing-report', 'UI Latency', 'Page Loaded',
              fakePerformance.loadEventEnd - fakePerformance.navigationStart)
      );
    });

    test('beforeLocationChanged', () => {
      element._baselines['garbage'] = 'monster';
      sandbox.stub(element, 'time');
      element.beforeLocationChanged();
      assert.isTrue(element.time.calledWithExactly('DashboardDisplayed'));
      assert.isTrue(element.time.calledWithExactly('ChangeDisplayed'));
      assert.isTrue(element.time.calledWithExactly('ChangeFullyLoaded'));
      assert.isTrue(element.time.calledWithExactly('DiffViewDisplayed'));
      assert.isTrue(element.time.calledWithExactly('FileListDisplayed'));
      assert.isFalse(element._baselines.hasOwnProperty('garbage'));
    });

    test('changeDisplayed', () => {
      sandbox.spy(element, 'timeEnd');
      element.changeDisplayed();
      assert.isFalse(
          element.timeEnd.calledWithExactly('ChangeDisplayed'));
      assert.isTrue(
          element.timeEnd.calledWithExactly('StartupChangeDisplayed'));
      element.changeDisplayed();
      assert.isTrue(element.timeEnd.calledWithExactly('ChangeDisplayed'));
    });

    test('changeFullyLoaded', () => {
      sandbox.spy(element, 'timeEnd');
      element.changeFullyLoaded();
      assert.isFalse(
          element.timeEnd.calledWithExactly('ChangeFullyLoaded'));
      assert.isTrue(
          element.timeEnd.calledWithExactly('StartupChangeFullyLoaded'));
      element.changeFullyLoaded();
      assert.isTrue(element.timeEnd.calledWithExactly('ChangeFullyLoaded'));
    });

    test('diffViewDisplayed', () => {
      sandbox.spy(element, 'timeEnd');
      element.diffViewDisplayed();
      assert.isFalse(
          element.timeEnd.calledWithExactly('DiffViewDisplayed'));
      assert.isTrue(
          element.timeEnd.calledWithExactly('StartupDiffViewDisplayed'));
      element.diffViewDisplayed();
      assert.isTrue(element.timeEnd.calledWithExactly('DiffViewDisplayed'));
    });

    test('fileListDisplayed', () => {
      sandbox.spy(element, 'timeEnd');
      element.fileListDisplayed();
      assert.isFalse(
          element.timeEnd.calledWithExactly('FileListDisplayed'));
      assert.isTrue(
          element.timeEnd.calledWithExactly('StartupFileListDisplayed'));
      element.fileListDisplayed();
      assert.isTrue(element.timeEnd.calledWithExactly('FileListDisplayed'));
    });

    test('dashboardDisplayed', () => {
      sandbox.spy(element, 'timeEnd');
      element.dashboardDisplayed();
      assert.isFalse(
          element.timeEnd.calledWithExactly('DashboardDisplayed'));
      assert.isTrue(
          element.timeEnd.calledWithExactly('StartupDashboardDisplayed'));
      element.dashboardDisplayed();
      assert.isTrue(element.timeEnd.calledWithExactly('DashboardDisplayed'));
    });

    test('time and timeEnd', () => {
      const nowStub = sandbox.stub(element, 'now').returns(0);
      element.time('foo');
      nowStub.returns(1.1);
      element.time('bar');
      nowStub.returns(2);
      element.timeEnd('bar');
      nowStub.returns(3.511);
      element.timeEnd('foo');
      assert.isTrue(element.reporter.calledWithExactly(
          'timing-report', 'UI Latency', 'foo', 4
      ));
      assert.isTrue(element.reporter.calledWithExactly(
          'timing-report', 'UI Latency', 'bar', 1
      ));
    });

    test('timer object', () => {
      const nowStub = sandbox.stub(element, 'now').returns(100);
      const timer = element.getTimer('foo-bar');
      nowStub.returns(150);
      timer.end();
      assert.isTrue(element.reporter.calledWithExactly(
          'timing-report', 'UI Latency', 'foo-bar', 50));
    });

    test('timer object double call', () => {
      const timer = element.getTimer('foo-bar');
      timer.end();
      assert.isTrue(element.reporter.calledOnce);
      assert.throws(() => {
        timer.end();
        done();
      }, 'Timer for "foo-bar" already ended.');
    });

    test('timer object maximum', () => {
      const nowStub = sandbox.stub(element, 'now').returns(100);
      const timer = element.getTimer('foo-bar').withMaximum(100);
      nowStub.returns(150);
      timer.end();
      assert.isTrue(element.reporter.calledOnce);

      timer.reset();
      nowStub.returns(260);
      timer.end();
      assert.isTrue(element.reporter.calledOnce);
    });

    test('recordDraftInteraction', () => {
      const key = 'TimeBetweenDraftActions';
      const nowStub = sandbox.stub(element, 'now').returns(100);
      const timingStub = sandbox.stub(element, '_reportTiming');
      element.recordDraftInteraction();
      assert.isFalse(timingStub.called);

      nowStub.returns(200);
      element.recordDraftInteraction();
      assert.isTrue(timingStub.calledOnce);
      assert.equal(timingStub.lastCall.args[0], key);
      assert.equal(timingStub.lastCall.args[1], 100);

      nowStub.returns(350);
      element.recordDraftInteraction();
      assert.isTrue(timingStub.calledTwice);
      assert.equal(timingStub.lastCall.args[0], key);
      assert.equal(timingStub.lastCall.args[1], 150);

      nowStub.returns(370 + 2 * 60 * 1000);
      element.recordDraftInteraction();
      assert.isFalse(timingStub.calledThrice);
    });

    test('timeEndWithAverage', () => {
      const nowStub = sandbox.stub(element, 'now').returns(0);
      nowStub.returns(1000);
      element.time('foo');
      nowStub.returns(1100);
      element.timeEndWithAverage('foo', 'bar', 10);
      assert.isTrue(element.reporter.calledTwice);
      assert.isTrue(element.reporter.calledWithExactly(
          'timing-report', 'UI Latency', 'foo', 100));
      assert.isTrue(element.reporter.calledWithExactly(
          'timing-report', 'UI Latency', 'bar', 10));
    });

    test('reportExtension', () => {
      element.reportExtension('foo');
      assert.isTrue(element.reporter.calledWithExactly(
          'lifecycle', 'Extension detected', 'foo'
      ));
    });

    suite('plugins', () => {
      setup(() => {
        element.reporter.restore();
        sandbox.stub(element, 'defaultReporter');
      });

      test('pluginsLoaded reports time', () => {
        sandbox.stub(element, 'now').returns(42);
        element.pluginsLoaded();
        assert.isTrue(element.defaultReporter.calledWith(
            'timing-report', 'UI Latency', 'PluginsLoaded', 42
        ));
      });

      test('pluginsLoaded reports plugins', () => {
        element.pluginsLoaded(['foo', 'bar']);
        assert.isTrue(element.defaultReporter.calledWith(
            'lifecycle', 'Plugins installed', 'foo,bar'
        ));
      });

      test('caches reports if plugins are not loaded', () => {
        element.timeEnd('foo');
        assert.isFalse(element.defaultReporter.called);
      });

      test('reports if plugins are loaded', () => {
        element.pluginsLoaded();
        assert.isTrue(element.defaultReporter.called);
      });

      test('reports plugins in timing events', () => {
        element.pluginsLoaded = [];
        sandbox.stub(element, 'now').returns(42);
        element.pluginLoaded('metrics-xyz1');
        // element.pluginLoaded('foo');
        element.time('timeAction');
        element.timeEnd('timeAction');
        assert.isTrue(element.defaultReporter.getCall(1).calledWith(
            'timing-report', 'UI Latency', 'timeAction', 0,
            ['metrics-xyz1']
        ));
      });

      test('reports if metrics plugin xyz is loaded', () => {
        element.pluginLoaded('metrics-xyz');
        assert.isTrue(element.defaultReporter.called);
      });

      test('reports cached events preserving order', () => {
        element.time('foo');
        element.time('bar');
        element.timeEnd('foo');
        element.pluginsLoaded();
        element.timeEnd('bar');
        assert.isTrue(element.defaultReporter.getCall(0).calledWith(
            'timing-report', 'UI Latency', 'foo'
        ));
        assert.isTrue(element.defaultReporter.getCall(1).calledWith(
            'timing-report', 'UI Latency', 'PluginsLoaded'
        ));
        assert.isTrue(element.defaultReporter.getCall(2).calledWith(
            'lifecycle', 'Plugins installed'
        ));
        assert.isTrue(element.defaultReporter.getCall(3).calledWith(
            'timing-report', 'UI Latency', 'bar'
        ));
      });
    });

    test('search', () => {
      element.locationChanged('_handleSomeRoute');
      assert.isTrue(element.reporter.calledWithExactly(
          'nav-report', 'Location Changed', 'Page', '_handleSomeRoute'));
    });

    suite('exception logging', () => {
      let fakeWindow;
      let reporter;

      const emulateThrow = function(msg, url, line, column, error) {
        return fakeWindow.onerror(msg, url, line, column, error);
      };

      setup(() => {
        reporter = sandbox.stub(GrReporting.prototype, 'reporter');
        fakeWindow = {
          handlers: {},
          addEventListener(type, handler) {
            this.handlers[type] = handler;
          },
        };
        sandbox.stub(console, 'error');
        window.GrReporting._catchErrors(fakeWindow);
      });

      test('is reported', () => {
        const error = new Error('bar');
        error.stack = undefined;
        emulateThrow('bar', 'http://url', 4, 2, error);
        assert.isTrue(reporter.calledWith('error', 'exception', 'bar'));
        const payload = reporter.lastCall.args[3];
        assert.deepEqual(payload, {
          url: 'http://url',
          line: 4,
          column: 2,
          error,
        });
      });

      test('is reported with 3 lines of stack', () => {
        const error = new Error('bar');
        emulateThrow('bar', 'http://url', 4, 2, error);
        const expectedStack = error.stack.split('\n').slice(0, 3)
            .join('\n');
        assert.isTrue(reporter.calledWith('error', 'exception',
            expectedStack));
      });

      test('prevent default event handler', () => {
        assert.isTrue(emulateThrow());
      });

      test('unhandled rejection', () => {
        fakeWindow.handlers['unhandledrejection']({
          reason: {
            message: 'bar',
          },
        });
        assert.isTrue(reporter.calledWith('error', 'exception', 'bar'));
      });
    });
  });
</script>