1 files changed, 38 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_cubic-bezier-01.js b/devtools/client/shared/test/browser_cubic-bezier-01.js
new file mode 100644
index 0000000000..b57e2de25b
--- /dev/null
+++ b/devtools/client/shared/test/browser_cubic-bezier-01.js
@@ -0,0 +1,38 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that the CubicBezierWidget generates content in a given parent node
+
+const {
+  CubicBezierWidget,
+} = require("resource://devtools/client/shared/widgets/CubicBezierWidget.js");
+
+const TEST_URI = CHROME_URL_ROOT + "doc_cubic-bezier-01.html";
+
+add_task(async function () {
+  const { host, doc } = await createHost("bottom", TEST_URI);
+
+  info("Checking that the graph markup is created in the parent");
+  const container = doc.querySelector("#cubic-bezier-container");
+  const w = new CubicBezierWidget(container);
+
+  ok(container.querySelector(".display-wrap"), "The display has been added");
+
+  ok(
+    container.querySelector(".coordinate-plane"),
+    "The coordinate plane has been added"
+  );
+  const buttons = container.querySelectorAll("button");
+  is(buttons.length, 2, "The 2 control points have been added");
+  is(buttons[0].className, "control-point");
+  is(buttons[1].className, "control-point");
+  ok(container.querySelector("canvas"), "The curve canvas has been added");
+
+  info("Destroying the widget");
+  w.destroy();
+  is(container.children.length, 0, "All nodes have been removed");
+
+  host.destroy();
+});