Function TEST

tests/cpp/test_init_once.cc:83–150

}

TEST(CEnvAPI, TVMFFIHandleInitDeinitOnce) {
  // Test 1: Successful initialization
  void* handle = nullptr;
  int ret = TVMFFIHandleInitOnce(&handle, InitSuccess);
  EXPECT_EQ(ret, 0);
  EXPECT_NE(handle, nullptr);
  EXPECT_EQ(*static_cast<int*>(handle), 42);

  // Test 2: Multiple init calls should not re-initialize (idempotent)
  void* original_handle = handle;
  ret = TVMFFIHandleInitOnce(&handle, InitShouldNotBeCalled);
  EXPECT_EQ(ret, 0);
  EXPECT_EQ(handle, original_handle);         // Handle should remain unchanged
  EXPECT_EQ(*static_cast<int*>(handle), 42);  // Value should still be 42

  // Test 3: Successful deinitialization
  ret = TVMFFIHandleDeinitOnce(&handle, DeinitSuccess);
  EXPECT_EQ(ret, 0);
  EXPECT_EQ(handle, nullptr);

  // Test 4: Multiple deinit calls should be safe (idempotent)
  ret = TVMFFIHandleDeinitOnce(&handle, DeinitShouldNotBeCalled);
  EXPECT_EQ(ret, 0);
  EXPECT_EQ(handle, nullptr);

  // Test 5: Init error - init_func returns error code
  void* handle2 = nullptr;
  ret = TVMFFIHandleInitOnce(&handle2, InitWithError);
  EXPECT_NE(ret, 0);
  EXPECT_EQ(handle2, nullptr);

  // Test 6: Init error - init_func returns nullptr (invalid)
  void* handle3 = nullptr;
  ret = TVMFFIHandleInitOnce(&handle3, InitReturnsNull);
  EXPECT_NE(ret, 0);
  EXPECT_EQ(handle3, nullptr);

  // Test 7: Deinit error - deinit_func returns error
  void* handle4 = nullptr;
  ret = TVMFFIHandleInitOnce(&handle4, InitForDeinitError);
  EXPECT_EQ(ret, 0);
  EXPECT_NE(handle4, nullptr);

  ret = TVMFFIHandleDeinitOnce(&handle4, DeinitWithError);
  EXPECT_NE(ret, 0);
  EXPECT_EQ(handle4, nullptr);  // Handle should still be set to nullptr

  // Test 8: Init-deinit lifecycle
  void* handle5 = nullptr;
  ret = TVMFFIHandleInitOnce(&handle5, InitValue123);
  EXPECT_EQ(ret, 0);
  EXPECT_NE(handle5, nullptr);
  EXPECT_EQ(*static_cast<int*>(handle5), 123);

  ret = TVMFFIHandleDeinitOnce(&handle5, DeinitSuccess);
  EXPECT_EQ(ret, 0);
  EXPECT_EQ(handle5, nullptr);