Implement argument validation for chrome.cast.channel.{open,send}

chrome/browser/extensions/api/cast_channel/cast_channel_apitest.cc

Index: chrome/browser/extensions/api/cast_channel/cast_channel_apitest.cc
diff --git a/chrome/browser/extensions/api/cast_channel/cast_channel_apitest.cc b/chrome/browser/extensions/api/cast_channel/cast_channel_apitest.cc
index fe478bff1af849582925fb56fd6f4828e68290c3..614693c667819adea17014190f6f7ef3662b3c75 100644
--- a/chrome/browser/extensions/api/cast_channel/cast_channel_apitest.cc
+++ b/chrome/browser/extensions/api/cast_channel/cast_channel_apitest.cc
@@ -8,7 +8,9 @@
 #include "chrome/browser/extensions/api/cast_channel/cast_channel_api.h"
 #include "chrome/browser/extensions/api/cast_channel/cast_socket.h"
 #include "chrome/browser/extensions/extension_apitest.h"
+#include "chrome/browser/extensions/extension_function_test_utils.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/ui/browser.h"
 #include "chrome/common/extensions/api/cast_channel.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/common/switches.h"
@@ -23,6 +25,9 @@ using cast_channel::CastSocket;
 using cast_channel::ChannelError;
 using cast_channel::MessageInfo;
 using cast_channel::ReadyState;
+using extensions::Extension;
+
+namespace utils = extension_function_test_utils;
 
 using ::testing::_;
 using ::testing::A;
@@ -258,3 +263,49 @@ IN_PROC_BROWSER_TEST_F(CastChannelAPITest, MAYBE_TestOpenError) {
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 }
 
+IN_PROC_BROWSER_TEST_F(CastChannelAPITest, TestOpenInvalidUrl) {
+  scoped_refptr<extensions::CastChannelOpenFunction> cast_channel_open_function(
+      new extensions::CastChannelOpenFunction);
+  scoped_refptr<Extension> empty_extension(utils::CreateEmptyExtension());
+  cast_channel_open_function->set_extension(empty_extension.get());
+
+  std::string error(utils::RunFunctionAndReturnError(
+      cast_channel_open_function.get(), "[\"blargh\"]", browser()));
+
+  EXPECT_EQ(error, "Invalid Cast URL blargh");
+}
+
+IN_PROC_BROWSER_TEST_F(CastChannelAPITest, TestOpenInvalidConnectInfo) {
+  scoped_refptr<extensions::CastChannelOpenFunction> cast_channel_open_function(
+      new extensions::CastChannelOpenFunction);
+  scoped_refptr<Extension> empty_extension(utils::CreateEmptyExtension());
+  cast_channel_open_function->set_extension(empty_extension.get());
+
+  // Invalid IP address.
+  std::string error(utils::RunFunctionAndReturnError(
+      cast_channel_open_function.get(),
+      "[{\"ipAddress\": \"invalid_ip\", \"port\": 8009, \"auth\": \"ssl\"}]",
+      browser()));
+
+  EXPECT_EQ(error, "Invalid connect_info");
+}
+
+IN_PROC_BROWSER_TEST_F(CastChannelAPITest, TestSendInvalidMessageInfo) {
+  scoped_refptr<extensions::CastChannelSendFunction> cast_channel_send_function(
+      new extensions::CastChannelSendFunction);
+  scoped_refptr<Extension> empty_extension(utils::CreateEmptyExtension());
+  cast_channel_send_function->set_extension(empty_extension.get());
+
+  // Invalid message data - numbers are not supported
+  std::string error(utils::RunFunctionAndReturnError(
+      cast_channel_send_function.get(),
+      "[{\"channelId\": 1, \"url\": \"cast://127.0.0.1:8009\", "
+      "\"connectInfo\": "
+      "{\"ipAddress\": \"127.0.0.1\", \"port\": 8009, "
+      "\"auth\": \"ssl\"}, \"readyState\": \"open\"}, "
+      "{\"namespace_\": \"foo\", \"sourceId\": \"src\", "
+      "\"destinationId\": \"bar\", \"data\": 1235}]",
+      browser()));
+
+  EXPECT_EQ(error, "Invalid type of message_info.data");
+}