As the first step in an effort to improve robustness of the cloud print proxy...

chrome/common/common_param_traits_unittest.cc

 // Copyright (c) 2006-2008 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 <string.h>
 #include <utility>
 
 #include "base/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/common/common_param_traits.h"
 #include "chrome/common/geoposition.h"
 #include "gfx/rect.h"
 #include "googleurl/src/gurl.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_message_utils.h"
+#include "printing/backend/print_backend.h"
 #include "printing/native_metafile.h"
 #include "printing/page_range.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 // Tests that serialize/deserialize correctly understand each other
 TEST(IPCMessageTest, Serialize) {
   const char* serialize_cases[] = {
     "http://www.google.com/",
     "http://user:pass@host.com:888/foo;bar?baz#nop",
@@ skipping 231 matching lines @@
   memset(bogus_data.get(), 'B', bogus_data_size);
   bad_msg.WriteData(bogus_data.get(), bogus_data_size);
   // Make sure we don't read out the metafile!
   printing::NativeMetafile bad_output;
   iter = NULL;
   EXPECT_FALSE(IPC::ParamTraits<printing::NativeMetafile>::Read(
       &bad_msg, &iter, &bad_output));
 }
 #endif  // defined(OS_WIN)
 
+// Tests printing::PrinterCapsAndDefaults serialization
+TEST(IPCMessageTest, PrinterCapsAndDefaults) {
+  printing::PrinterCapsAndDefaults input;
+  input.printer_capabilities = "Test Capabilities";
+  input.caps_mime_type = "text/plain";
+  input.printer_defaults = "Test Defaults";
+  input.defaults_mime_type = "text/plain";
+
+  IPC::Message msg(1, 2, IPC::Message::PRIORITY_NORMAL);
+  IPC::ParamTraits<printing::PrinterCapsAndDefaults>::Write(&msg, input);
+
+  printing::PrinterCapsAndDefaults output;
+  void* iter = NULL;
+  EXPECT_TRUE(IPC::ParamTraits<printing::PrinterCapsAndDefaults>::Read(
+      &msg, &iter, &output));
+  EXPECT_TRUE(input.printer_capabilities == output.printer_capabilities);
+  EXPECT_TRUE(input.caps_mime_type == output.caps_mime_type);
+  EXPECT_TRUE(input.printer_defaults == output.printer_defaults);
+  EXPECT_TRUE(input.defaults_mime_type == output.defaults_mime_type);
+}
+