diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/base/optimization_test.cc')
-rw-r--r-- | third_party/abseil_cpp/absl/base/optimization_test.cc | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/third_party/abseil_cpp/absl/base/optimization_test.cc b/third_party/abseil_cpp/absl/base/optimization_test.cc deleted file mode 100644 index e83369f32261..000000000000 --- a/third_party/abseil_cpp/absl/base/optimization_test.cc +++ /dev/null @@ -1,129 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/optimization.h" - -#include "gtest/gtest.h" -#include "absl/types/optional.h" - -namespace { - -// Tests for the ABSL_PREDICT_TRUE and ABSL_PREDICT_FALSE macros. -// The tests only verify that the macros are functionally correct - i.e. code -// behaves as if they weren't used. They don't try to check their impact on -// optimization. - -TEST(PredictTest, PredictTrue) { - EXPECT_TRUE(ABSL_PREDICT_TRUE(true)); - EXPECT_FALSE(ABSL_PREDICT_TRUE(false)); - EXPECT_TRUE(ABSL_PREDICT_TRUE(1 == 1)); - EXPECT_FALSE(ABSL_PREDICT_TRUE(1 == 2)); - - if (ABSL_PREDICT_TRUE(false)) ADD_FAILURE(); - if (!ABSL_PREDICT_TRUE(true)) ADD_FAILURE(); - - EXPECT_TRUE(ABSL_PREDICT_TRUE(true) && true); - EXPECT_TRUE(ABSL_PREDICT_TRUE(true) || false); -} - -TEST(PredictTest, PredictFalse) { - EXPECT_TRUE(ABSL_PREDICT_FALSE(true)); - EXPECT_FALSE(ABSL_PREDICT_FALSE(false)); - EXPECT_TRUE(ABSL_PREDICT_FALSE(1 == 1)); - EXPECT_FALSE(ABSL_PREDICT_FALSE(1 == 2)); - - if (ABSL_PREDICT_FALSE(false)) ADD_FAILURE(); - if (!ABSL_PREDICT_FALSE(true)) ADD_FAILURE(); - - EXPECT_TRUE(ABSL_PREDICT_FALSE(true) && true); - EXPECT_TRUE(ABSL_PREDICT_FALSE(true) || false); -} - -TEST(PredictTest, OneEvaluation) { - // Verify that the expression is only evaluated once. - int x = 0; - if (ABSL_PREDICT_TRUE((++x) == 0)) ADD_FAILURE(); - EXPECT_EQ(x, 1); - if (ABSL_PREDICT_FALSE((++x) == 0)) ADD_FAILURE(); - EXPECT_EQ(x, 2); -} - -TEST(PredictTest, OperatorOrder) { - // Verify that operator order inside and outside the macro behaves well. - // These would fail for a naive '#define ABSL_PREDICT_TRUE(x) x' - EXPECT_TRUE(ABSL_PREDICT_TRUE(1 && 2) == true); - EXPECT_TRUE(ABSL_PREDICT_FALSE(1 && 2) == true); - EXPECT_TRUE(!ABSL_PREDICT_TRUE(1 == 2)); - EXPECT_TRUE(!ABSL_PREDICT_FALSE(1 == 2)); -} - -TEST(PredictTest, Pointer) { - const int x = 3; - const int *good_intptr = &x; - const int *null_intptr = nullptr; - EXPECT_TRUE(ABSL_PREDICT_TRUE(good_intptr)); - EXPECT_FALSE(ABSL_PREDICT_TRUE(null_intptr)); - EXPECT_TRUE(ABSL_PREDICT_FALSE(good_intptr)); - EXPECT_FALSE(ABSL_PREDICT_FALSE(null_intptr)); -} - -TEST(PredictTest, Optional) { - // Note: An optional's truth value is the value's existence, not its truth. - absl::optional<bool> has_value(false); - absl::optional<bool> no_value; - EXPECT_TRUE(ABSL_PREDICT_TRUE(has_value)); - EXPECT_FALSE(ABSL_PREDICT_TRUE(no_value)); - EXPECT_TRUE(ABSL_PREDICT_FALSE(has_value)); - EXPECT_FALSE(ABSL_PREDICT_FALSE(no_value)); -} - -class ImplictlyConvertibleToBool { - public: - explicit ImplictlyConvertibleToBool(bool value) : value_(value) {} - operator bool() const { // NOLINT(google-explicit-constructor) - return value_; - } - - private: - bool value_; -}; - -TEST(PredictTest, ImplicitBoolConversion) { - const ImplictlyConvertibleToBool is_true(true); - const ImplictlyConvertibleToBool is_false(false); - if (!ABSL_PREDICT_TRUE(is_true)) ADD_FAILURE(); - if (ABSL_PREDICT_TRUE(is_false)) ADD_FAILURE(); - if (!ABSL_PREDICT_FALSE(is_true)) ADD_FAILURE(); - if (ABSL_PREDICT_FALSE(is_false)) ADD_FAILURE(); -} - -class ExplictlyConvertibleToBool { - public: - explicit ExplictlyConvertibleToBool(bool value) : value_(value) {} - explicit operator bool() const { return value_; } - - private: - bool value_; -}; - -TEST(PredictTest, ExplicitBoolConversion) { - const ExplictlyConvertibleToBool is_true(true); - const ExplictlyConvertibleToBool is_false(false); - if (!ABSL_PREDICT_TRUE(is_true)) ADD_FAILURE(); - if (ABSL_PREDICT_TRUE(is_false)) ADD_FAILURE(); - if (!ABSL_PREDICT_FALSE(is_true)) ADD_FAILURE(); - if (ABSL_PREDICT_FALSE(is_false)) ADD_FAILURE(); -} - -} // namespace |