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#include <string>
#include "composer/internal/mode_switching_handler.h"
#include "testing/base/public/gunit.h"
#include "testing/base/public/googletest.h"

namespace mozc {
namespace composer {
class ModeSwitchingHandlerTest : public testing::Test {
  void SetUp() {
    handler_ = ModeSwitchingHandler::GetModeSwitchingHandler();
  }
 protected:
  ModeSwitchingHandler *handler_;
};

TEST_F(ModeSwitchingHandlerTest, GetModeSwitchingRule) {
  ModeSwitchingHandler::ModeSwitching display_mode =
      ModeSwitchingHandler::NO_CHANGE;
  ModeSwitchingHandler::ModeSwitching input_mode =
      ModeSwitchingHandler::NO_CHANGE;

  EXPECT_TRUE(handler_->GetModeSwitchingRule("google",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::PREFERRED_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::REVERT_TO_PREVIOUS_MODE, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("Google",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::PREFERRED_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::REVERT_TO_PREVIOUS_MODE, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("Chrome",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::PREFERRED_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::REVERT_TO_PREVIOUS_MODE, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("chrome",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::PREFERRED_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::REVERT_TO_PREVIOUS_MODE, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("Android",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::PREFERRED_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::REVERT_TO_PREVIOUS_MODE, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("android",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::PREFERRED_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::REVERT_TO_PREVIOUS_MODE, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("http",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::HALF_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::HALF_ALPHANUMERIC, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("www.",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::HALF_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::HALF_ALPHANUMERIC, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("\\\\",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::HALF_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::HALF_ALPHANUMERIC, input_mode);

  EXPECT_TRUE(handler_->GetModeSwitchingRule("C:\\",
                                             &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::HALF_ALPHANUMERIC, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::HALF_ALPHANUMERIC, input_mode);

  // Normal text should return false.
  EXPECT_FALSE(handler_->GetModeSwitchingRule("foobar",
                                              &display_mode, &input_mode));
  EXPECT_EQ(ModeSwitchingHandler::NO_CHANGE, display_mode);
  EXPECT_EQ(ModeSwitchingHandler::NO_CHANGE, input_mode);
}

TEST_F(ModeSwitchingHandlerTest, DriveLetters) {
  EXPECT_TRUE(handler_->IsDriveLetter("C:\\"));
  EXPECT_TRUE(handler_->IsDriveLetter("c:\\"));
  EXPECT_FALSE(handler_->IsDriveLetter("C:"));
  EXPECT_FALSE(handler_->IsDriveLetter("6:\\"));
}
}  // namespace composer
}  // namespace mozc