Make the fuchsia mojo/public repo the source of truth.

mojo/public/c/tests/macros_unittest.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This file tests the C Mojo system macros and consists of "positive" tests,
-// i.e., those verifying that things work (without compile errors, or even
-// warnings if warnings are treated as errors).
-// TODO(vtl): Fix no-compile tests (which are all disabled; crbug.com/105388)
-// and write some "negative" tests.
-
-#include <mojo/macros.h>
-
-#include <assert.h>
-#include <stdint.h>
-#include <stdlib.h>
-
-#include "gtest/gtest.h"
-
-namespace mojo {
-namespace {
-
-TEST(MacrosTest, AllowUnused) {
-  // Test that no warning/error is issued even though |x| is unused.
-  int x = 123;
-  MOJO_ALLOW_UNUSED_LOCAL(x);
-}
-
-int MustUseReturnedResult() MOJO_WARN_UNUSED_RESULT;
-int MustUseReturnedResult() {
-  return 456;
-}
-
-TEST(MacrosTest, WarnUnusedResult) {
-  if (!MustUseReturnedResult())
-    abort();
-}
-
-// First test |MOJO_STATIC_ASSERT()| in a global scope.
-MOJO_STATIC_ASSERT(sizeof(int64_t) == 2 * sizeof(int32_t),
-                   "Bad static_assert() failure in global scope");
-
-TEST(MacrosTest, CompileAssert) {
-  // Then in a local scope.
-  MOJO_STATIC_ASSERT(sizeof(int32_t) == 2 * sizeof(int16_t),
-                     "Bad static_assert() failure");
-}
-
-TEST(MacrosTest, Alignof) {
-  // Strictly speaking, this isn't a portable test, but I think it'll pass on
-  // all the platforms we currently support.
-  EXPECT_EQ(1u, MOJO_ALIGNOF(char));
-  EXPECT_EQ(4u, MOJO_ALIGNOF(int32_t));
-  EXPECT_EQ(8u, MOJO_ALIGNOF(int64_t));
-  EXPECT_EQ(8u, MOJO_ALIGNOF(double));
-}
-
-// These structs are used in the Alignas test. Define them globally to avoid
-// MSVS warnings/errors.
-#if defined(_MSC_VER)
-#pragma warning(push)
-// Disable the warning "structure was padded due to __declspec(align())".
-#pragma warning(disable : 4324)
-#endif
-struct MOJO_ALIGNAS(1) StructAlignas1 {
-  char x;
-};
-struct MOJO_ALIGNAS(4) StructAlignas4 {
-  char x;
-};
-struct MOJO_ALIGNAS(8) StructAlignas8 {
-  char x;
-};
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
-
-TEST(MacrosTest, Alignas) {
-  EXPECT_EQ(1u, MOJO_ALIGNOF(StructAlignas1));
-  EXPECT_EQ(4u, MOJO_ALIGNOF(StructAlignas4));
-  EXPECT_EQ(8u, MOJO_ALIGNOF(StructAlignas8));
-}
-
-}  // namespace
-}  // namespace mojo