Revert "Move mojo edk into mojo/edk"

mojo/edk/system/options_validation_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.
-
-#include "mojo/edk/system/options_validation.h"
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include "mojo/public/c/system/macros.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace mojo {
-namespace system {
-namespace {
-
-// Declare a test options struct just as we do in actual public headers.
-
-typedef uint32_t TestOptionsFlags;
-
-MOJO_COMPILE_ASSERT(MOJO_ALIGNOF(int64_t) == 8, int64_t_has_weird_alignment);
-struct MOJO_ALIGNAS(8) TestOptions {
-  uint32_t struct_size;
-  TestOptionsFlags flags;
-  uint32_t member1;
-  uint32_t member2;
-};
-MOJO_COMPILE_ASSERT(sizeof(TestOptions) == 16, TestOptions_has_wrong_size);
-
-const uint32_t kSizeOfTestOptions = static_cast<uint32_t>(sizeof(TestOptions));
-
-TEST(OptionsValidationTest, Valid) {
-  {
-    const TestOptions kOptions = {kSizeOfTestOptions};
-    UserOptionsReader<TestOptions> reader(MakeUserPointer(&kOptions));
-    EXPECT_TRUE(reader.is_valid());
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, flags, reader));
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member1, reader));
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member2, reader));
-  }
-  {
-    const TestOptions kOptions = {static_cast<uint32_t>(
-        offsetof(TestOptions, struct_size) + sizeof(uint32_t))};
-    UserOptionsReader<TestOptions> reader(MakeUserPointer(&kOptions));
-    EXPECT_TRUE(reader.is_valid());
-    EXPECT_FALSE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, flags, reader));
-    EXPECT_FALSE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member1, reader));
-    EXPECT_FALSE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member2, reader));
-  }
-
-  {
-    const TestOptions kOptions = {
-        static_cast<uint32_t>(offsetof(TestOptions, flags) + sizeof(uint32_t))};
-    UserOptionsReader<TestOptions> reader(MakeUserPointer(&kOptions));
-    EXPECT_TRUE(reader.is_valid());
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, flags, reader));
-    EXPECT_FALSE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member1, reader));
-    EXPECT_FALSE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member2, reader));
-  }
-  {
-    MOJO_ALIGNAS(8) char buf[sizeof(TestOptions) + 100] = {};
-    TestOptions* options = reinterpret_cast<TestOptions*>(buf);
-    options->struct_size = kSizeOfTestOptions + 1;
-    UserOptionsReader<TestOptions> reader(MakeUserPointer(options));
-    EXPECT_TRUE(reader.is_valid());
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, flags, reader));
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member1, reader));
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member2, reader));
-  }
-  {
-    MOJO_ALIGNAS(8) char buf[sizeof(TestOptions) + 100] = {};
-    TestOptions* options = reinterpret_cast<TestOptions*>(buf);
-    options->struct_size = kSizeOfTestOptions + 4;
-    UserOptionsReader<TestOptions> reader(MakeUserPointer(options));
-    EXPECT_TRUE(reader.is_valid());
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, flags, reader));
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member1, reader));
-    EXPECT_TRUE(OPTIONS_STRUCT_HAS_MEMBER(TestOptions, member2, reader));
-  }
-}
-
-TEST(OptionsValidationTest, Invalid) {
-  // Size too small:
-  for (size_t i = 0; i < sizeof(uint32_t); i++) {
-    TestOptions options = {static_cast<uint32_t>(i)};
-    UserOptionsReader<TestOptions> reader(MakeUserPointer(&options));
-    EXPECT_FALSE(reader.is_valid()) << i;
-  }
-}
-
-// These test invalid arguments that should cause death if we're being paranoid
-// about checking arguments (which we would want to do if, e.g., we were in a
-// true "kernel" situation, but we might not want to do otherwise for
-// performance reasons). Probably blatant errors like passing in null pointers
-// (for required pointer arguments) will still cause death, but perhaps not
-// predictably.
-TEST(OptionsValidationTest, InvalidDeath) {
-  const char kMemoryCheckFailedRegex[] = "Check failed";
-
-  // Null:
-  EXPECT_DEATH_IF_SUPPORTED(
-      { UserOptionsReader<TestOptions> reader((NullUserPointer())); },
-      kMemoryCheckFailedRegex);
-
-  // Unaligned:
-  EXPECT_DEATH_IF_SUPPORTED(
-      {
-        UserOptionsReader<TestOptions> reader(
-            MakeUserPointer(reinterpret_cast<const TestOptions*>(1)));
-      },
-      kMemoryCheckFailedRegex);
-  // Note: The current implementation checks the size only after checking the
-  // alignment versus that required for the |uint32_t| size, so it won't die in
-  // the expected way if you pass, e.g., 4. So we have to manufacture a valid
-  // pointer at an offset of alignment 4.
-  EXPECT_DEATH_IF_SUPPORTED(
-      {
-        uint32_t buffer[100] = {};
-        TestOptions* options = (reinterpret_cast<uintptr_t>(buffer) % 8 == 0)
-                                   ? reinterpret_cast<TestOptions*>(&buffer[1])
-                                   : reinterpret_cast<TestOptions*>(&buffer[0]);
-        options->struct_size = static_cast<uint32_t>(sizeof(TestOptions));
-        UserOptionsReader<TestOptions> reader(MakeUserPointer(options));
-      },
-      kMemoryCheckFailedRegex);
-}
-
-}  // namespace
-}  // namespace system
-}  // namespace mojo