Print Preview: Add a test for activating the initiator tab on print.

chrome/browser/ui/webui/print_preview_ui_unittest.cc

 // Copyright (c) 2011 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 <vector>
 
 #include "base/command_line.h"
 #include "base/memory/ref_counted_memory.h"
 #include "chrome/browser/printing/print_preview_tab_controller.h"
 #include "chrome/browser/ui/browser_list.h"
@@ skipping 19 matching lines @@
   CommandLine::ForCurrentProcess()->AppendSwitch(switches::kEnablePrintPreview);
   ASSERT_TRUE(browser());
   BrowserList::SetLastActive(browser());
   ASSERT_TRUE(BrowserList::GetLastActive());
 
   browser()->NewTab();
   TabContentsWrapper* initiator_tab =
       browser()->GetSelectedTabContentsWrapper();
   ASSERT_TRUE(initiator_tab);
 
-  scoped_refptr<printing::PrintPreviewTabController>
-      controller(new printing::PrintPreviewTabController());
+  printing::PrintPreviewTabController* controller =
+      printing::PrintPreviewTabController::GetInstance();
   ASSERT_TRUE(controller);
 
   TabContentsWrapper* preview_tab =
       controller->GetOrCreatePreviewTab(initiator_tab);
 
   EXPECT_NE(initiator_tab, preview_tab);
   EXPECT_EQ(2, browser()->tab_count());
 
   PrintPreviewUI* preview_ui =
-      reinterpret_cast<PrintPreviewUI*>(preview_tab->web_ui());
-  ASSERT_TRUE(preview_ui != NULL);
+      static_cast<PrintPreviewUI*>(preview_tab->web_ui());
+  ASSERT_TRUE(preview_ui);
 
   scoped_refptr<RefCountedBytes> data;
   preview_ui->GetPrintPreviewDataForIndex(
       printing::COMPLETE_PREVIEW_DOCUMENT_INDEX,
       &data);
   EXPECT_EQ(NULL, data.get());
 
   std::vector<unsigned char> preview_data(blob1, blob1 + sizeof(blob1));
   scoped_refptr<RefCountedBytes> dummy_data(new RefCountedBytes(preview_data));
 
@@ skipping 27 matching lines @@
 #endif
   ASSERT_TRUE(browser());
   BrowserList::SetLastActive(browser());
   ASSERT_TRUE(BrowserList::GetLastActive());
 
   browser()->NewTab();
   TabContentsWrapper* initiator_tab =
       browser()->GetSelectedTabContentsWrapper();
   ASSERT_TRUE(initiator_tab);
 
-  scoped_refptr<printing::PrintPreviewTabController>
-      controller(new printing::PrintPreviewTabController());
+  printing::PrintPreviewTabController* controller =
+      printing::PrintPreviewTabController::GetInstance();
   ASSERT_TRUE(controller);
 
   TabContentsWrapper* preview_tab =
       controller->GetOrCreatePreviewTab(initiator_tab);
 
   EXPECT_NE(initiator_tab, preview_tab);
   EXPECT_EQ(2, browser()->tab_count());
 
   PrintPreviewUI* preview_ui =
-      reinterpret_cast<PrintPreviewUI*>(preview_tab->web_ui());
-  ASSERT_TRUE(preview_ui != NULL);
+      static_cast<PrintPreviewUI*>(preview_tab->web_ui());
+  ASSERT_TRUE(preview_ui);
 
   scoped_refptr<RefCountedBytes> data;
   preview_ui->GetPrintPreviewDataForIndex(printing::FIRST_PAGE_INDEX, &data);
   EXPECT_EQ(NULL, data.get());
 
   std::vector<unsigned char> preview_data(blob1, blob1 + sizeof(blob1));
   scoped_refptr<RefCountedBytes> dummy_data(new RefCountedBytes(preview_data));
 
   preview_ui->SetPrintPreviewDataForIndex(printing::FIRST_PAGE_INDEX,
                                           dummy_data.get());
@@ skipping 34 matching lines @@
 #endif
   ASSERT_TRUE(browser());
   BrowserList::SetLastActive(browser());
   ASSERT_TRUE(BrowserList::GetLastActive());
 
   browser()->NewTab();
   TabContentsWrapper* initiator_tab =
       browser()->GetSelectedTabContentsWrapper();
   ASSERT_TRUE(initiator_tab);
 
-  scoped_refptr<printing::PrintPreviewTabController>
-      controller(new printing::PrintPreviewTabController());
+  printing::PrintPreviewTabController* controller =
+      printing::PrintPreviewTabController::GetInstance();
   ASSERT_TRUE(controller);
 
   TabContentsWrapper* preview_tab =
       controller->GetOrCreatePreviewTab(initiator_tab);
 
   EXPECT_NE(initiator_tab, preview_tab);
   EXPECT_EQ(2, browser()->tab_count());
 
   PrintPreviewUI* preview_ui =
-      reinterpret_cast<PrintPreviewUI*>(preview_tab->web_ui());
-  ASSERT_TRUE(preview_ui != NULL);
+      static_cast<PrintPreviewUI*>(preview_tab->web_ui());
+  ASSERT_TRUE(preview_ui);
 
   // Test with invalid |preview_ui_addr|.
   bool cancel = false;
   preview_ui->GetCurrentPrintPreviewStatus("invalid", 0, &cancel);
   EXPECT_TRUE(cancel);
 
   const int kFirstRequestId = 1000;
   const int kSecondRequestId = 1001;
   const std::string preview_ui_addr = preview_ui->GetPrintPreviewUIAddress();
 
@@ skipping 14 matching lines @@
   cancel = false;
   preview_ui->GetCurrentPrintPreviewStatus(preview_ui_addr, kFirstRequestId,
                                            &cancel);
   EXPECT_TRUE(cancel);
 
   cancel = true;
   preview_ui->GetCurrentPrintPreviewStatus(preview_ui_addr, kSecondRequestId,
                                            &cancel);
   EXPECT_FALSE(cancel);
 }