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#import "mac/GoogleJapaneseInputServer.h"

#include "protocol/commands.pb.h"
#include "testing/base/public/googletest.h"
#include "testing/base/public/gunit.h"

class GoogleJapaneseInputServerTest : public testing::Test {
 protected:
  void SetUp() {
    // Although GoogleJapaneseInputServer is a subclass of IMKServer,
    // it does not use initWithName:... method to instantiate the
    // object because we don't test those IMKServer functionality
    // during this test.
    server_ = [[GoogleJapaneseInputServer alloc] init];
  }

 protected:
  GoogleJapaneseInputServer *server_;
};

@interface MockController : NSObject<ControllerCallback> {
  int numSendData_;
  mozc::commands::SessionCommand *expectedCommand_;
  int numOutputResult_;
  mozc::commands::Output *expectedData_;
}
@property(readonly) int numSendData;
@property(readwrite, assign) mozc::commands::SessionCommand *expectedCommand;
@property(readonly) int numOutputResult;
@property(readwrite, assign) mozc::commands::Output *expectedData;

- (void)sendCommand:(mozc::commands::SessionCommand &)command;
- (void)outputResult:(mozc::commands::Output *)data;
@end

@implementation MockController
@synthesize numSendData = numSendData_;
@synthesize expectedCommand = expectedCommand_;
@synthesize numOutputResult = numOutputResult_;
@synthesize expectedData = expectedData_;

- (void)sendCommand:(mozc::commands::SessionCommand &)command {
  ASSERT_NE((void*)0, expectedCommand_);
  EXPECT_EQ(expectedCommand_->DebugString(), command.DebugString());
  ++numSendData_;
}

- (void)outputResult:(mozc::commands::Output *)data {
  ASSERT_NE((void*)0, data);
  ASSERT_NE((void*)0, expectedData_);
  EXPECT_EQ(expectedData_->DebugString(), data->DebugString());
  ++numOutputResult_;
}
@end

TEST_F(GoogleJapaneseInputServerTest, sendData) {
  MockController *controller = [[MockController alloc] init];
  [server_ setCurrentController:controller];

  mozc::commands::SessionCommand command;
  command.Clear();
  command.set_type(mozc::commands::SessionCommand::SELECT_CANDIDATE);
  command.set_id(0);
  controller.expectedCommand = &command;

  std::string commandData = command.SerializeAsString();
  [server_ sendData:[NSData dataWithBytes:commandData.data()
                                   length:commandData.size()]];
  EXPECT_EQ(1, controller.numSendData);
}

TEST_F(GoogleJapaneseInputServerTest, outputResult) {
  MockController *controller = [[MockController alloc] init];
  [server_ setCurrentController:controller];

  mozc::commands::Output output;
  output.Clear();
  output.mutable_result()->set_type(mozc::commands::Result::STRING);
  output.mutable_result()->set_key("foobar");
  output.mutable_result()->set_value("baz");
  controller.expectedData = &output;

  std::string outputData = output.SerializeAsString();
  [server_ outputResult:[NSData dataWithBytes:outputData.data()
                                       length:outputData.size()]];
  EXPECT_EQ(1, controller.numOutputResult);
}
