diff options
Diffstat (limited to 'mojo/public/cpp/bindings/tests/bounds_checker_unittest.cc')
| -rw-r--r-- | mojo/public/cpp/bindings/tests/bounds_checker_unittest.cc | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/mojo/public/cpp/bindings/tests/bounds_checker_unittest.cc b/mojo/public/cpp/bindings/tests/bounds_checker_unittest.cc deleted file mode 100644 index 1cd9618..0000000 --- a/mojo/public/cpp/bindings/tests/bounds_checker_unittest.cc +++ /dev/null @@ -1,209 +0,0 @@ -// 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 <limits> - -#include "mojo/public/cpp/bindings/lib/bindings_serialization.h" -#include "mojo/public/cpp/bindings/lib/bounds_checker.h" -#include "mojo/public/cpp/system/core.h" -#include "testing/gtest/include/gtest/gtest.h" - -namespace mojo { -namespace test { -namespace { - -const void* ToPtr(uintptr_t ptr) { - return reinterpret_cast<const void*>(ptr); -} - -#ifdef NDEBUG -TEST(BoundsCheckerTest, ConstructorRangeOverflow) { - { - // Test memory range overflow. - internal::BoundsChecker checker( - ToPtr(std::numeric_limits<uintptr_t>::max() - 3000), 5000, 0); - - EXPECT_FALSE(checker.IsValidRange( - ToPtr(std::numeric_limits<uintptr_t>::max() - 3000), 1)); - EXPECT_FALSE(checker.ClaimMemory( - ToPtr(std::numeric_limits<uintptr_t>::max() - 3000), 1)); - } - - if (sizeof(size_t) > sizeof(uint32_t)) { - // Test handle index range overflow. - size_t num_handles = - static_cast<size_t>(std::numeric_limits<uint32_t>::max()) + 5; - internal::BoundsChecker checker(ToPtr(0), 0, num_handles); - - EXPECT_FALSE(checker.ClaimHandle(Handle(0))); - EXPECT_FALSE( - checker.ClaimHandle(Handle(std::numeric_limits<uint32_t>::max() - 1))); - - EXPECT_TRUE( - checker.ClaimHandle(Handle(internal::kEncodedInvalidHandleValue))); - } -} -#endif - -TEST(BoundsCheckerTest, IsValidRange) { - { - internal::BoundsChecker checker(ToPtr(1234), 100, 0); - - // Basics. - EXPECT_FALSE(checker.IsValidRange(ToPtr(100), 5)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1230), 50)); - EXPECT_TRUE(checker.IsValidRange(ToPtr(1234), 5)); - EXPECT_TRUE(checker.IsValidRange(ToPtr(1240), 50)); - EXPECT_TRUE(checker.IsValidRange(ToPtr(1234), 100)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1234), 101)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1240), 100)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1333), 5)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(2234), 5)); - - // ClaimMemory() updates the valid range. - EXPECT_TRUE(checker.ClaimMemory(ToPtr(1254), 10)); - - EXPECT_FALSE(checker.IsValidRange(ToPtr(1234), 1)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1254), 10)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1263), 1)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1263), 10)); - EXPECT_TRUE(checker.IsValidRange(ToPtr(1264), 10)); - EXPECT_TRUE(checker.IsValidRange(ToPtr(1264), 70)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1264), 71)); - } - - { - internal::BoundsChecker checker(ToPtr(1234), 100, 0); - // Should return false for empty ranges. - EXPECT_FALSE(checker.IsValidRange(ToPtr(0), 0)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1200), 0)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1234), 0)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1240), 0)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(2234), 0)); - } - - { - // The valid memory range is empty. - internal::BoundsChecker checker(ToPtr(1234), 0, 0); - - EXPECT_FALSE(checker.IsValidRange(ToPtr(1234), 1)); - EXPECT_FALSE(checker.IsValidRange(ToPtr(1234), 0)); - } - - { - internal::BoundsChecker checker( - ToPtr(std::numeric_limits<uintptr_t>::max() - 2000), 1000, 0); - - // Test overflow. - EXPECT_FALSE(checker.IsValidRange( - ToPtr(std::numeric_limits<uintptr_t>::max() - 1500), 4000)); - EXPECT_FALSE(checker.IsValidRange( - ToPtr(std::numeric_limits<uintptr_t>::max() - 1500), - std::numeric_limits<uint32_t>::max())); - - // This should be fine. - EXPECT_TRUE(checker.IsValidRange( - ToPtr(std::numeric_limits<uintptr_t>::max() - 1500), 200)); - } -} - -TEST(BoundsCheckerTest, ClaimHandle) { - { - internal::BoundsChecker checker(ToPtr(0), 0, 10); - - // Basics. - EXPECT_TRUE(checker.ClaimHandle(Handle(0))); - EXPECT_FALSE(checker.ClaimHandle(Handle(0))); - - EXPECT_TRUE(checker.ClaimHandle(Handle(9))); - EXPECT_FALSE(checker.ClaimHandle(Handle(10))); - - // Should fail because it is smaller than the max index that has been - // claimed. - EXPECT_FALSE(checker.ClaimHandle(Handle(8))); - - // Should return true for invalid handle. - EXPECT_TRUE( - checker.ClaimHandle(Handle(internal::kEncodedInvalidHandleValue))); - EXPECT_TRUE( - checker.ClaimHandle(Handle(internal::kEncodedInvalidHandleValue))); - } - - { - // No handle to claim. - internal::BoundsChecker checker(ToPtr(0), 0, 0); - - EXPECT_FALSE(checker.ClaimHandle(Handle(0))); - - // Should still return true for invalid handle. - EXPECT_TRUE( - checker.ClaimHandle(Handle(internal::kEncodedInvalidHandleValue))); - } - - { - // Test the case that |num_handles| is the same value as - // |internal::kEncodedInvalidHandleValue|. - EXPECT_EQ(internal::kEncodedInvalidHandleValue, - std::numeric_limits<uint32_t>::max()); - internal::BoundsChecker checker( - ToPtr(0), 0, std::numeric_limits<uint32_t>::max()); - - EXPECT_TRUE( - checker.ClaimHandle(Handle(std::numeric_limits<uint32_t>::max() - 1))); - EXPECT_FALSE( - checker.ClaimHandle(Handle(std::numeric_limits<uint32_t>::max() - 1))); - EXPECT_FALSE(checker.ClaimHandle(Handle(0))); - - // Should still return true for invalid handle. - EXPECT_TRUE( - checker.ClaimHandle(Handle(internal::kEncodedInvalidHandleValue))); - } -} - -TEST(BoundsCheckerTest, ClaimMemory) { - { - internal::BoundsChecker checker(ToPtr(1000), 2000, 0); - - // Basics. - EXPECT_FALSE(checker.ClaimMemory(ToPtr(500), 100)); - EXPECT_FALSE(checker.ClaimMemory(ToPtr(800), 300)); - EXPECT_TRUE(checker.ClaimMemory(ToPtr(1000), 100)); - EXPECT_FALSE(checker.ClaimMemory(ToPtr(1099), 100)); - EXPECT_TRUE(checker.ClaimMemory(ToPtr(1100), 200)); - EXPECT_FALSE(checker.ClaimMemory(ToPtr(2000), 1001)); - EXPECT_TRUE(checker.ClaimMemory(ToPtr(2000), 500)); - EXPECT_FALSE(checker.ClaimMemory(ToPtr(2000), 500)); - EXPECT_FALSE(checker.ClaimMemory(ToPtr(1400), 100)); - EXPECT_FALSE(checker.ClaimMemory(ToPtr(3000), 1)); - EXPECT_TRUE(checker.ClaimMemory(ToPtr(2500), 500)); - } - - { - // No memory to claim. - internal::BoundsChecker checker(ToPtr(10000), 0, 0); - - EXPECT_FALSE(checker.ClaimMemory(ToPtr(10000), 1)); - EXPECT_FALSE(checker.ClaimMemory(ToPtr(10000), 0)); - } - - { - internal::BoundsChecker checker( - ToPtr(std::numeric_limits<uintptr_t>::max() - 1000), 500, 0); - - // Test overflow. - EXPECT_FALSE(checker.ClaimMemory( - ToPtr(std::numeric_limits<uintptr_t>::max() - 750), 4000)); - EXPECT_FALSE( - checker.ClaimMemory(ToPtr(std::numeric_limits<uintptr_t>::max() - 750), - std::numeric_limits<uint32_t>::max())); - - // This should be fine. - EXPECT_TRUE(checker.ClaimMemory( - ToPtr(std::numeric_limits<uintptr_t>::max() - 750), 200)); - } -} - -} // namespace -} // namespace test -} // namespace mojo |