1 files changed, 41 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_graphs-16.js b/devtools/client/shared/test/browser_graphs-16.js
new file mode 100644
index 0000000000..5cf7143816
--- /dev/null
+++ b/devtools/client/shared/test/browser_graphs-16.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that mounta graphs work as expected.
+
+const MountainGraphWidget = require("devtools/client/shared/widgets/MountainGraphWidget");
+
+const TEST_DATA = [
+  { delta: 0, values: [0.1, 0.5, 0.3] },
+  { delta: 1, values: [0.25, 0, 0.5] },
+  { delta: 2, values: [0.5, 0.25, 0.1] },
+  { delta: 3, values: [0, 0.75, 0] },
+  { delta: 4, values: [0.75, 0, 0.25] },
+];
+
+const SECTIONS = [{ color: "red" }, { color: "green" }, { color: "blue" }];
+
+add_task(async function() {
+  await addTab("about:blank");
+  await performTest();
+  gBrowser.removeCurrentTab();
+});
+
+async function performTest() {
+  const { host, doc } = await createHost();
+  const graph = new MountainGraphWidget(doc.body);
+  await graph.once("ready");
+
+  testGraph(graph);
+
+  await graph.destroy();
+  host.destroy();
+}
+
+function testGraph(graph) {
+  graph.format = SECTIONS;
+  graph.setData(TEST_DATA);
+  ok(true, "The graph didn't throw any erorrs.");
+}