Refactoring select popup on Mac....

chrome/renderer/external_popup_menu_unittest.cc

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/utf_string_conversions.h"
+#include "chrome/common/render_messages.h"
+#include "chrome/common/render_messages_params.h"
+#include "chrome/test/render_view_test.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebSize.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebView.h"
+
+// Tests for the external select popup menu (Mac specific).
+
+namespace {
+
+const char* const kSelectID = "mySelect";
+
+}  // namespace
+
+class ExternalPopupMenuTest : public RenderViewTest {
+ public:
+  ExternalPopupMenuTest() {}
+
+  virtual void SetUp() {
+    RenderViewTest::SetUp();
+    // We need to set this explictly as RenderMain is not run.
+    WebKit::WebView::setUseExternalPopupMenus(true);
+
+    // Load the test page.
+    LoadHTML("<select id='mySelect'>"
+             "  <option>zero</option>"
+             "  <option selected='1'>one</option>"
+             "  <option>two</option>"
+             "</select>");
+
+    // Set a minimum size and give focus so simulated events work.
+    view_->webwidget()->resize(WebKit::WebSize(500, 500));
+    view_->webwidget()->setFocus(true);
+  }
+
+  int GetSelectedIndex() {
+    string16 script(ASCIIToUTF16(kSelectID));
+    script.append(ASCIIToUTF16(".selectedIndex"));
+    int selected_index = -1;
+    ExecuteJavaScriptAndReturnIntValue(script, &selected_index);
+    return selected_index;
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(ExternalPopupMenuTest);
+};
+
+// Normal case: test showing a select popup, canceling/selecting an item.
+TEST_F(ExternalPopupMenuTest, NormalCase) {
+  IPC::TestSink& sink = render_thread_.sink();
+
+  // Click the text field once.
+  EXPECT_TRUE(SimulateElementClick(kSelectID));
+
+  // We should have sent a message to the browser to show the popup menu.
+  const IPC::Message* message =
+      sink.GetUniqueMessageMatching(ViewHostMsg_ShowPopup::ID);
+  ASSERT_TRUE(message != NULL);
+  Tuple1<ViewHostMsg_ShowPopup_Params> param;
+  ViewHostMsg_ShowPopup::Read(message, &param);
+  ASSERT_EQ(3U, param.a.popup_items.size());
+  EXPECT_EQ(1, param.a.selected_item);
+
+  // Simulate the user canceling the popup, the index should not have changed.
+  view_->OnSelectPopupMenuItem(-1);
+  EXPECT_EQ(1, GetSelectedIndex());
+
+  // Show the pop-up again and this time make a selection.
+  EXPECT_TRUE(SimulateElementClick(kSelectID));
+  view_->OnSelectPopupMenuItem(0);
+  EXPECT_EQ(0, GetSelectedIndex());
+
+  // Show the pop-up again and make another selection.
+  sink.ClearMessages();
+  EXPECT_TRUE(SimulateElementClick(kSelectID));
+  message = sink.GetUniqueMessageMatching(ViewHostMsg_ShowPopup::ID);
+  ASSERT_TRUE(message != NULL);
+  ViewHostMsg_ShowPopup::Read(message, &param);
+  ASSERT_EQ(3U, param.a.popup_items.size());
+  EXPECT_EQ(0, param.a.selected_item);
+}
+
+// Page shows popup, then navigates away while popup showing, then select.
+TEST_F(ExternalPopupMenuTest, ShowPopupThenNavigate) {
+  // Click the text field once.
+  EXPECT_TRUE(SimulateElementClick(kSelectID));
+
+  // Now we navigate to another pager.
+  LoadHTML("<blink>Awesome page!</blink>");
+
+  // Now the user selects something, we should not crash.
+  view_->OnSelectPopupMenuItem(-1);
+}