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#include "testing/base/public/googletest.h"
#include "testing/base/public/gunit.h"

#include "base/util.h"
#include "win32/ime/ime_input_context.h"

namespace mozc {
namespace win32 {
namespace {
InputContext *AsContext(INPUTCONTEXT *context_pointer) {
  return reinterpret_cast<InputContext *>(context_pointer);
}
}  // anonymous namespace

TEST(InputContextTest, InitializeTest) {
  // If the conversion mode is not initialized, initialize it with
  // IME_CMODE_NATIVE.
  {
    INPUTCONTEXT base_context = {0};

    InputContext *context(AsContext(&base_context));
    EXPECT_TRUE(context->Initialize());
    EXPECT_EQ(IME_CMODE_NATIVE, context->fdwConversion);
    EXPECT_EQ(INIT_CONVERSION, (context->fdwInit & INIT_CONVERSION));
  }

  // If any conversion mode is set, keep it as it is.
  {
    INPUTCONTEXT base_context = {0};

    InputContext *context(AsContext(&base_context));
    context->fdwConversion = IME_CMODE_NATIVE | IME_CMODE_FULLSHAPE;
    context->fdwInit |= INIT_CONVERSION;

    EXPECT_TRUE(context->Initialize());
    EXPECT_EQ(IME_CMODE_NATIVE | IME_CMODE_FULLSHAPE, context->fdwConversion);
    EXPECT_EQ(INIT_CONVERSION, (context->fdwInit & INIT_CONVERSION));
  }

  // If the sentence mode is not initialized, initialize it with
  // IME_SMODE_PHRASEPREDICT.
  {
    INPUTCONTEXT base_context = {0};

    InputContext *context(AsContext(&base_context));
    EXPECT_TRUE(context->Initialize());
    EXPECT_EQ(IME_SMODE_PHRASEPREDICT, context->fdwSentence);
    EXPECT_EQ(INIT_SENTENCE, (context->fdwInit & INIT_SENTENCE));
  }

  // If any sentence mode is set, it should be updated to
  // IME_SMODE_PHRASEPREDICT.
  {
    INPUTCONTEXT base_context = {0};

    InputContext *context(AsContext(&base_context));
    context->fdwConversion = IME_SMODE_CONVERSATION;
    context->fdwInit |= INIT_SENTENCE;

    EXPECT_TRUE(context->Initialize());
    EXPECT_EQ(IME_SMODE_PHRASEPREDICT, context->fdwSentence);
    EXPECT_EQ(INIT_SENTENCE, (context->fdwInit & INIT_SENTENCE));
  }
}
}  // namespace win32
}  // namespace mozc