Add a printing resource (as a new style resource) to fetch the default print settings

ppapi/proxy/printing_resource_unittest.cc

Index: ppapi/proxy/printing_resource_unittest.cc
diff --git a/ppapi/proxy/printing_resource_unittest.cc b/ppapi/proxy/printing_resource_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..980147fc56e0a054559daeb0d3d19ee655fe87d6
--- /dev/null
+++ b/ppapi/proxy/printing_resource_unittest.cc
@@ -0,0 +1,103 @@
+// Copyright (c) 2012 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 <cstring>
+
+#include "base/message_loop.h"
+#include "ppapi/c/dev/ppb_printing_dev.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/proxy/printing_resource.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/proxy/ppapi_proxy_test.h"
+#include "ppapi/thunk/thunk.h"
+#include "ppapi/shared_impl/scoped_pp_resource.h"
+
+namespace ppapi {
+namespace proxy {
+
+namespace {
+
+typedef PluginProxyTest PrintingResourceTest;
+
+bool g_callback_called;
+int32_t g_callback_result;
+
+void Callback(void* user_data, int32_t result) {
+  g_callback_called = true;
+  g_callback_result = result;
+}
+
+bool PP_SizeEqual(const PP_Size& lhs, const PP_Size& rhs) {
+    return lhs.width == rhs.width && lhs.height == rhs.height;
+}
+
+bool PP_RectEqual(const PP_Rect& lhs, const PP_Rect& rhs) {
+    return lhs.point.x == rhs.point.x &&
+        lhs.point.y == rhs.point.y &&
+        PP_SizeEqual(lhs.size, rhs.size);
+}
+
+}  // namespace
+
+// Does a full test of GetDefaultPrintSettings() and reply functionality in the
+// plugin side using the public C interfaces.
+TEST_F(PrintingResourceTest, GetDefaultPrintSettings) {
+  g_callback_called = false;
+
+  const PPB_Printing_Dev_0_7* printing_iface =
+      thunk::GetPPB_Printing_Dev_0_7_Thunk();
+  ScopedPPResource res(ScopedPPResource::PassRef(),
+                       printing_iface->Create(pp_instance()));
+
+  PP_PrintSettings_Dev output_settings;
+
+  int32_t result = printing_iface->GetDefaultPrintSettings(
+      res, &output_settings, PP_MakeCompletionCallback(&Callback, NULL));
+  ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
+
+  // Should have sent a "GetDefaultPrintSettings" message.
+  ResourceMessageCallParams params;
+  IPC::Message msg;
+  ASSERT_TRUE(sink().GetFirstResourceCallMatching(
+      PpapiHostMsg_Printing_GetDefaultPrintSettings::ID, &params, &msg));
+
+  // Synthesize a response with some random print settings.
+  ResourceMessageReplyParams reply_params(params.pp_resource(),
+                                          params.sequence());
+  reply_params.set_result(PP_OK);
+
+  PP_PrintSettings_Dev reply_settings = {
+    { { 0, 0 }, { 500, 515 } },
+    { { 25, 35 }, { 300, 720 } },
+    { 600, 700 },
+    200,
+    PP_PRINTORIENTATION_NORMAL,
+    PP_PRINTSCALINGOPTION_NONE,
+    PP_FALSE,
+    PP_PRINTOUTPUTFORMAT_PDF
+  };
+  ASSERT_TRUE(plugin_dispatcher()->OnMessageReceived(
+      PpapiPluginMsg_ResourceReply(reply_params,
+          PpapiPluginMsg_Printing_GetDefaultPrintSettingsReply(
+              reply_settings))));
+
+  EXPECT_TRUE(PP_RectEqual(reply_settings.printable_area,
+                           output_settings.printable_area));
+  EXPECT_TRUE(PP_RectEqual(reply_settings.content_area,
+                           output_settings.content_area));
+  EXPECT_TRUE(PP_SizeEqual(reply_settings.paper_size,
+                           output_settings.paper_size));
+  EXPECT_EQ(reply_settings.dpi, output_settings.dpi);
+  EXPECT_EQ(reply_settings.orientation, output_settings.orientation);
+  EXPECT_EQ(reply_settings.print_scaling_option,
+            output_settings.print_scaling_option);
+  EXPECT_EQ(reply_settings.grayscale, output_settings.grayscale);
+  EXPECT_EQ(reply_settings.format, output_settings.format);
+
+  EXPECT_EQ(g_callback_result, PP_OK);
+  EXPECT_EQ(g_callback_called, true);
+}
+
+}  // namespace proxy
+}  // namespace ppapi