1 files changed, 76 insertions, 0 deletions
diff --git a/devtools/client/performance/test/browser_perf-overview-render-03.js b/devtools/client/performance/test/browser_perf-overview-render-03.js
new file mode 100644
index 000000000..e46ce2f91
--- /dev/null
+++ b/devtools/client/performance/test/browser_perf-overview-render-03.js
@@ -0,0 +1,76 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that the overview graphs share the exact same width and scaling.
+ */
+
+const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
+const { UI_ENABLE_MEMORY_PREF } = require("devtools/client/performance/test/helpers/prefs");
+const { initPerformanceInNewTab, teardownToolboxAndRemoveTab } = require("devtools/client/performance/test/helpers/panel-utils");
+const { startRecording, stopRecording } = require("devtools/client/performance/test/helpers/actions");
+const { waitUntil } = require("devtools/client/performance/test/helpers/wait-utils");
+
+add_task(function* () {
+  let { panel } = yield initPerformanceInNewTab({
+    url: SIMPLE_URL,
+    win: window
+  });
+
+  let { PerformanceController, OverviewView } = panel.panelWin;
+
+  // Enable memory to test.
+  Services.prefs.setBoolPref(UI_ENABLE_MEMORY_PREF, true);
+
+  let doChecks = () => {
+    let markers = OverviewView.graphs.get("timeline");
+    let framerate = OverviewView.graphs.get("framerate");
+    let memory = OverviewView.graphs.get("memory");
+
+    ok(markers.width > 0,
+      "The overview's markers graph has a width.");
+    ok(markers.dataScaleX > 0,
+      "The overview's markers graph has a data scale factor.");
+
+    ok(memory.width > 0,
+      "The overview's memory graph has a width.");
+    ok(memory.dataDuration > 0,
+      "The overview's memory graph has a data duration.");
+    ok(memory.dataScaleX > 0,
+      "The overview's memory graph has a data scale factor.");
+
+    ok(framerate.width > 0,
+      "The overview's framerate graph has a width.");
+    ok(framerate.dataDuration > 0,
+      "The overview's framerate graph has a data duration.");
+    ok(framerate.dataScaleX > 0,
+      "The overview's framerate graph has a data scale factor.");
+
+    is(markers.width, memory.width,
+      "The markers and memory graphs widths are the same.");
+    is(markers.width, framerate.width,
+      "The markers and framerate graphs widths are the same.");
+
+    is(memory.dataDuration, framerate.dataDuration,
+      "The memory and framerate graphs data duration are the same.");
+
+    is(markers.dataScaleX, memory.dataScaleX,
+      "The markers and memory graphs data scale are the same.");
+    is(markers.dataScaleX, framerate.dataScaleX,
+      "The markers and framerate graphs data scale are the same.");
+  };
+
+  yield startRecording(panel);
+  doChecks();
+
+  yield waitUntil(() => PerformanceController.getCurrentRecording().getMarkers().length);
+  yield waitUntil(() => PerformanceController.getCurrentRecording().getMemory().length);
+  yield waitUntil(() => PerformanceController.getCurrentRecording().getTicks().length);
+  doChecks();
+
+  yield stopRecording(panel);
+  doChecks();
+
+  yield teardownToolboxAndRemoveTab(panel);
+});