c-ares/test/ares-test-init.cc

#include "ares-test.h"

// library initialization is only needed for windows builds
#ifdef USE_WINSOCK
#define EXPECTED_NONINIT ARES_ENOTINITIALIZED
#else
#define EXPECTED_NONINIT ARES_SUCCESS
#endif

namespace ares {
namespace test {

TEST(LibraryInit, Basic) {
  EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized());
  EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL));
  EXPECT_EQ(ARES_SUCCESS, ares_library_initialized());
  ares_library_cleanup();
  EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized());
}

TEST(LibraryInit, UnexpectedCleanup) {
  EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized());
  ares_library_cleanup();
  EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized());
}

TEST(LibraryInit, DISABLED_InvalidParam) {
  // TODO: police flags argument to ares_library_init()
  EXPECT_EQ(ARES_EBADQUERY, ares_library_init(ARES_LIB_INIT_ALL << 2));
  EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized());
  ares_library_cleanup();
}

TEST(LibraryInit, Nested) {
  EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized());
  EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL));
  EXPECT_EQ(ARES_SUCCESS, ares_library_initialized());
  EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL));
  EXPECT_EQ(ARES_SUCCESS, ares_library_initialized());
  ares_library_cleanup();
  EXPECT_EQ(ARES_SUCCESS, ares_library_initialized());
  ares_library_cleanup();
  EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized());
}

TEST_F(LibraryTest, BasicChannelInit) {
  EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL));
  ares_channel channel = nullptr;
  EXPECT_EQ(ARES_SUCCESS, ares_init(&channel));
  EXPECT_NE(nullptr, channel);
  ares_destroy(channel);
  ares_library_cleanup();
}

TEST_F(LibraryTest, FailChannelInit) {
  EXPECT_EQ(ARES_SUCCESS,
            ares_library_init_mem(ARES_LIB_INIT_ALL,
                                  &LibraryTest::amalloc,
                                  &LibraryTest::afree,
                                  &LibraryTest::arealloc));
  SetAllocFail(1);
  ares_channel channel = nullptr;
  EXPECT_EQ(ARES_ENOMEM, ares_init(&channel));
  EXPECT_EQ(nullptr, channel);
  ares_library_cleanup();
}

#ifdef USE_WINSOCK
TEST(Init, NoLibraryInit) {
  ares_channel channel = nullptr;
  EXPECT_EQ(ARES_ENOTINITIALIZED, ares_init(&channel));
}
#endif

}  // namespace test
}  // namespace ares