cpp-cli/test/cli_test.cxx

//
//  cli_test.cxx
//  cli-test
//
//  Created by Sam Jaffe on 10/9/20.
//  Copyright © 2020 Sam Jaffe. All rights reserved.
//

#include "cli/cli.h"

#include <gmock/gmock.h>
#include <gtest/gtest.h>

#if XCODE_UNIT_TEST
// This is a hack to allow XCode to properly display failures when running
// unit tests.
#undef EXPECT_THAT
#define EXPECT_THAT ASSERT_THAT
#undef EXPECT_THROW
#define EXPECT_THROW ASSERT_THROW
#undef EXPECT_TRUE
#define EXPECT_TRUE ASSERT_TRUE
#undef EXPECT_FALSE
#define EXPECT_FALSE ASSERT_FALSE
#endif

TEST(CliTest, EndsOnQuit) {
  std::stringstream input{R"(quit)"};
  cli::cli(input).run();
}

TEST(CliTest, CanInputNoArgsCommand) {
  bool was_hit{false};
  std::stringstream input{R"(act)"};
  cli::cli(input).register_callback("act", [&](){ was_hit = true; }).run();
  EXPECT_TRUE(was_hit);
}

TEST(CliTest, WillSkipCallbackIfNotEnoughArgs) {
  bool was_hit{false};
  std::stringstream input{R"(act)"};
  cli::cli(input).register_callback("act", [&](int){ was_hit = true; }).run();
  EXPECT_FALSE(was_hit);
}

struct example {};
void cli_print(example const &) { throw example{}; }

TEST(CliTest, QueryInvokesADLFunction) {
  std::stringstream input{R"(query)"};
  auto func = [](){ return example{}; };
  EXPECT_THROW(cli::cli(input).register_query("query", func).run(), example);
}