1 files changed, 95 insertions, 0 deletions
diff --git a/devtools/client/responsivedesign/test/browser_responsiveruleview.js b/devtools/client/responsivedesign/test/browser_responsiveruleview.js
new file mode 100644
index 0000000000..5c3698e785
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+++ b/devtools/client/responsivedesign/test/browser_responsiveruleview.js
@@ -0,0 +1,95 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Check that when the viewport is resized, the rule-view refreshes.
+// Also test that ESC does open the split-console, and that the RDM menu item
+// gets updated correctly when needed.
+// TODO: split this test.
+
+const TEST_URI = "data:text/html;charset=utf-8,<html><style>" +
+                 "div {" +
+                 "  width: 500px;" +
+                 "  height: 10px;" +
+                 "  background: purple;" +
+                 "} " +
+                 "@media screen and (max-width: 200px) {" +
+                 "  div { " +
+                 "    width: 100px;" +
+                 "  }" +
+                 "};" +
+                 "</style><div></div></html>";
+
+add_task(function* () {
+  yield addTab(TEST_URI);
+
+  info("Open the responsive design mode and set its size to 500x500 to start");
+  let { rdm, manager } = yield openRDM();
+  yield setSize(rdm, manager, 500, 500);
+
+  info("Open the inspector, rule-view and select the test node");
+  let {inspector, view} = yield openRuleView();
+  yield selectNode("div", inspector);
+
+  info("Try shrinking the viewport and checking the applied styles");
+  yield testShrink(view, rdm, manager);
+
+  info("Try growing the viewport and checking the applied styles");
+  yield testGrow(view, rdm, manager);
+
+  info("Check that ESC still opens the split console");
+  yield testEscapeOpensSplitConsole(inspector);
+
+  yield closeToolbox();
+
+  info("Test the state of the RDM menu item");
+  yield testMenuItem(rdm);
+
+  Services.prefs.clearUserPref("devtools.toolbox.splitconsoleEnabled");
+});
+
+function* testShrink(ruleView, rdm, manager) {
+  is(numberOfRules(ruleView), 2, "Should have two rules initially.");
+
+  info("Resize to 100x100 and wait for the rule-view to update");
+  let onRefresh = ruleView.once("ruleview-refreshed");
+  yield setSize(rdm, manager, 100, 100);
+  yield onRefresh;
+
+  is(numberOfRules(ruleView), 3, "Should have three rules after shrinking.");
+}
+
+function* testGrow(ruleView, rdm, manager) {
+  info("Resize to 500x500 and wait for the rule-view to update");
+  let onRefresh = ruleView.once("ruleview-refreshed");
+  yield setSize(rdm, manager, 500, 500);
+  yield onRefresh;
+
+  is(numberOfRules(ruleView), 2, "Should have two rules after growing.");
+}
+
+function* testEscapeOpensSplitConsole(inspector) {
+  ok(!inspector._toolbox._splitConsole, "Console is not split.");
+
+  info("Press escape");
+  let onSplit = inspector._toolbox.once("split-console");
+  EventUtils.synthesizeKey("VK_ESCAPE", {});
+  yield onSplit;
+
+  ok(inspector._toolbox._splitConsole, "Console is split after pressing ESC.");
+}
+
+function* testMenuItem(rdm) {
+  is(document.getElementById("menu_responsiveUI").getAttribute("checked"),
+     "true", "The menu item is checked");
+
+  yield closeRDM(rdm);
+
+  is(document.getElementById("menu_responsiveUI").getAttribute("checked"),
+     "false", "The menu item is unchecked");
+}
+
+function numberOfRules(ruleView) {
+  return ruleView.element.querySelectorAll(".ruleview-code").length;
+}