1 files changed, 119 insertions, 0 deletions
diff --git a/dom/plugins/test/mochitest/browser_bug1196539.js b/dom/plugins/test/mochitest/browser_bug1196539.js
new file mode 100644
index 000000000..8b2210ccd
--- /dev/null
+++ b/dom/plugins/test/mochitest/browser_bug1196539.js
@@ -0,0 +1,119 @@
+var gTestRoot = getRootDirectory(gTestPath).replace("chrome://mochitests/content/", "http://127.0.0.1:8888/");
+
+function checkPaintCount(aCount) {
+  ok(aCount != 0, "paint count can't be greater than zero, count was " + aCount);
+  ok(aCount < kMaxPaints, "paint count should be within limits, count was " + aCount);
+}
+
+// maximum number of paints we allow before failing. The test plugin doesn't
+// animate so this should really be just 1, but operating systems can
+// occasionally fire a few of these so we give these tests a fudge factor.
+// A bad regression would either be 0, or 100+.
+const kMaxPaints = 10;
+
+add_task(function* () {
+  let result, tabSwitchedPromise;
+
+  setTestPluginEnabledState(Ci.nsIPluginTag.STATE_ENABLED, "Test Plug-in");
+
+  let testTab = gBrowser.selectedTab;
+  let pluginTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, gTestRoot + "plugin_test.html");
+  let homeTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, "about:home");
+
+  result = yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    return !!plugin;
+  });
+  is(result, true, "plugin is loaded");
+
+  result = yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    return !XPCNativeWrapper.unwrap(plugin).nativeWidgetIsVisible();
+  });
+  is(result, true, "plugin is hidden");
+
+  // reset plugin paint count
+  yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    XPCNativeWrapper.unwrap(plugin).resetPaintCount();
+  });
+
+  // select plugin tab
+  tabSwitchedPromise = waitTabSwitched();
+  gBrowser.selectedTab = pluginTab;
+  yield tabSwitchedPromise;
+
+  // wait a bit for spurious paints
+  yield waitForMs(100);
+
+  result = yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    return XPCNativeWrapper.unwrap(plugin).nativeWidgetIsVisible();
+  });
+  is(result, true, "plugin is visible");
+
+  // check for good paint count
+  result = yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    return XPCNativeWrapper.unwrap(plugin).getPaintCount();
+  });
+  checkPaintCount(result);
+
+  // select home tab
+  tabSwitchedPromise = waitTabSwitched();
+  gBrowser.selectedTab = homeTab;
+  yield tabSwitchedPromise;
+
+  // reset paint count
+  yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    XPCNativeWrapper.unwrap(plugin).resetPaintCount();
+  });
+
+  // wait a bit for spurious paints
+  yield waitForMs(100);
+
+  // check for no paint count
+  result = yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    return XPCNativeWrapper.unwrap(plugin).getPaintCount();
+  });
+  is(result, 0, "no paints, this is correct.");
+
+  result = yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    return !XPCNativeWrapper.unwrap(plugin).nativeWidgetIsVisible();
+  });
+  is(result, true, "plugin is hidden");
+
+  // reset paint count
+  yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    XPCNativeWrapper.unwrap(plugin).resetPaintCount();
+  });
+
+  // select plugin tab
+  tabSwitchedPromise = waitTabSwitched();
+  gBrowser.selectedTab = pluginTab;
+  yield tabSwitchedPromise;
+
+  // check paint count
+  result = yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let doc = content.document;
+    let plugin = doc.getElementById("testplugin");
+    return XPCNativeWrapper.unwrap(plugin).getPaintCount();
+  });
+  checkPaintCount(result);
+
+  gBrowser.removeTab(homeTab);
+  gBrowser.removeTab(pluginTab);
+});