Abseil Common Libraries (C++) (grcp 依赖)
https://abseil.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
266 lines
10 KiB
266 lines
10 KiB
// Copyright 2018 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. |
|
// |
|
// ----------------------------------------------------------------------------- |
|
// File: mock_distributions.h |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// This file contains mock distribution functions for use alongside an |
|
// `absl::MockingBitGen` object within the Googletest testing framework. Such |
|
// mocks are useful to provide deterministic values as return values within |
|
// (otherwise random) Abseil distribution functions. |
|
// |
|
// The return type of each function is a mock expectation object which |
|
// is used to set the match result. |
|
// |
|
// More information about the Googletest testing framework is available at |
|
// https://github.com/google/googletest |
|
// |
|
// EXPECT_CALL and ON_CALL need to be made within the same DLL component as |
|
// the call to absl::Uniform and related methods, otherwise mocking will fail |
|
// since the underlying implementation creates a type-specific pointer which |
|
// will be distinct across different DLL boundaries. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockUniform<int>(), Call(mock, 1, 1000)) |
|
// .WillRepeatedly(testing::ReturnRoundRobin({20, 40})); |
|
// |
|
// EXPECT_EQ(absl::Uniform<int>(gen, 1, 1000), 20); |
|
// EXPECT_EQ(absl::Uniform<int>(gen, 1, 1000), 40); |
|
// EXPECT_EQ(absl::Uniform<int>(gen, 1, 1000), 20); |
|
// EXPECT_EQ(absl::Uniform<int>(gen, 1, 1000), 40); |
|
|
|
#ifndef ABSL_RANDOM_MOCK_DISTRIBUTIONS_H_ |
|
#define ABSL_RANDOM_MOCK_DISTRIBUTIONS_H_ |
|
|
|
#include <limits> |
|
#include <type_traits> |
|
#include <utility> |
|
|
|
#include "gmock/gmock.h" |
|
#include "gtest/gtest.h" |
|
#include "absl/meta/type_traits.h" |
|
#include "absl/random/distributions.h" |
|
#include "absl/random/internal/mock_overload_set.h" |
|
#include "absl/random/mocking_bit_gen.h" |
|
|
|
namespace absl { |
|
ABSL_NAMESPACE_BEGIN |
|
|
|
// ----------------------------------------------------------------------------- |
|
// absl::MockUniform |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Matches calls to absl::Uniform. |
|
// |
|
// `absl::MockUniform` is a class template used in conjunction with Googletest's |
|
// `ON_CALL()` and `EXPECT_CALL()` macros. To use it, default-construct an |
|
// instance of it inside `ON_CALL()` or `EXPECT_CALL()`, and use `Call(...)` the |
|
// same way one would define mocks on a Googletest `MockFunction()`. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockUniform<uint32_t>(), Call(mock)) |
|
// .WillOnce(Return(123456)); |
|
// auto x = absl::Uniform<uint32_t>(mock); |
|
// assert(x == 123456) |
|
// |
|
template <typename R> |
|
using MockUniform = random_internal::MockOverloadSet< |
|
random_internal::UniformDistributionWrapper<R>, |
|
R(IntervalClosedOpenTag, MockingBitGen&, R, R), |
|
R(IntervalClosedClosedTag, MockingBitGen&, R, R), |
|
R(IntervalOpenOpenTag, MockingBitGen&, R, R), |
|
R(IntervalOpenClosedTag, MockingBitGen&, R, R), R(MockingBitGen&, R, R), |
|
R(MockingBitGen&)>; |
|
|
|
// ----------------------------------------------------------------------------- |
|
// absl::MockBernoulli |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Matches calls to absl::Bernoulli. |
|
// |
|
// `absl::MockBernoulli` is a class used in conjunction with Googletest's |
|
// `ON_CALL()` and `EXPECT_CALL()` macros. To use it, default-construct an |
|
// instance of it inside `ON_CALL()` or `EXPECT_CALL()`, and use `Call(...)` the |
|
// same way one would define mocks on a Googletest `MockFunction()`. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockBernoulli(), Call(mock, testing::_)) |
|
// .WillOnce(Return(false)); |
|
// assert(absl::Bernoulli(mock, 0.5) == false); |
|
// |
|
using MockBernoulli = |
|
random_internal::MockOverloadSet<absl::bernoulli_distribution, |
|
bool(MockingBitGen&, double)>; |
|
|
|
// ----------------------------------------------------------------------------- |
|
// absl::MockBeta |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Matches calls to absl::Beta. |
|
// |
|
// `absl::MockBeta` is a class used in conjunction with Googletest's `ON_CALL()` |
|
// and `EXPECT_CALL()` macros. To use it, default-construct an instance of it |
|
// inside `ON_CALL()` or `EXPECT_CALL()`, and use `Call(...)` the same way one |
|
// would define mocks on a Googletest `MockFunction()`. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockBeta(), Call(mock, 3.0, 2.0)) |
|
// .WillOnce(Return(0.567)); |
|
// auto x = absl::Beta<double>(mock, 3.0, 2.0); |
|
// assert(x == 0.567); |
|
// |
|
template <typename RealType> |
|
using MockBeta = |
|
random_internal::MockOverloadSet<absl::beta_distribution<RealType>, |
|
RealType(MockingBitGen&, RealType, |
|
RealType)>; |
|
|
|
// ----------------------------------------------------------------------------- |
|
// absl::MockExponential |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Matches calls to absl::Exponential. |
|
// |
|
// `absl::MockExponential` is a class template used in conjunction with |
|
// Googletest's `ON_CALL()` and `EXPECT_CALL()` macros. To use it, |
|
// default-construct an instance of it inside `ON_CALL()` or `EXPECT_CALL()`, |
|
// and use `Call(...)` the same way one would define mocks on a |
|
// Googletest `MockFunction()`. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockExponential<double>(), Call(mock, 0.5)) |
|
// .WillOnce(Return(12.3456789)); |
|
// auto x = absl::Exponential<double>(mock, 0.5); |
|
// assert(x == 12.3456789) |
|
// |
|
template <typename RealType> |
|
using MockExponential = |
|
random_internal::MockOverloadSet<absl::exponential_distribution<RealType>, |
|
RealType(MockingBitGen&, RealType)>; |
|
|
|
// ----------------------------------------------------------------------------- |
|
// absl::MockGaussian |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Matches calls to absl::Gaussian. |
|
// |
|
// `absl::MockGaussian` is a class template used in conjunction with |
|
// Googletest's `ON_CALL()` and `EXPECT_CALL()` macros. To use it, |
|
// default-construct an instance of it inside `ON_CALL()` or `EXPECT_CALL()`, |
|
// and use `Call(...)` the same way one would define mocks on a |
|
// Googletest `MockFunction()`. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockGaussian<double>(), Call(mock, 16.3, 3.3)) |
|
// .WillOnce(Return(12.3456789)); |
|
// auto x = absl::Gaussian<double>(mock, 16.3, 3.3); |
|
// assert(x == 12.3456789) |
|
// |
|
template <typename RealType> |
|
using MockGaussian = |
|
random_internal::MockOverloadSet<absl::gaussian_distribution<RealType>, |
|
RealType(MockingBitGen&, RealType, |
|
RealType)>; |
|
|
|
// ----------------------------------------------------------------------------- |
|
// absl::MockLogUniform |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Matches calls to absl::LogUniform. |
|
// |
|
// `absl::MockLogUniform` is a class template used in conjunction with |
|
// Googletest's `ON_CALL()` and `EXPECT_CALL()` macros. To use it, |
|
// default-construct an instance of it inside `ON_CALL()` or `EXPECT_CALL()`, |
|
// and use `Call(...)` the same way one would define mocks on a |
|
// Googletest `MockFunction()`. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockLogUniform<int>(), Call(mock, 10, 10000, 10)) |
|
// .WillOnce(Return(1221)); |
|
// auto x = absl::LogUniform<int>(mock, 10, 10000, 10); |
|
// assert(x == 1221) |
|
// |
|
template <typename IntType> |
|
using MockLogUniform = random_internal::MockOverloadSet< |
|
absl::log_uniform_int_distribution<IntType>, |
|
IntType(MockingBitGen&, IntType, IntType, IntType)>; |
|
|
|
// ----------------------------------------------------------------------------- |
|
// absl::MockPoisson |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Matches calls to absl::Poisson. |
|
// |
|
// `absl::MockPoisson` is a class template used in conjunction with Googletest's |
|
// `ON_CALL()` and `EXPECT_CALL()` macros. To use it, default-construct an |
|
// instance of it inside `ON_CALL()` or `EXPECT_CALL()`, and use `Call(...)` the |
|
// same way one would define mocks on a Googletest `MockFunction()`. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockPoisson<int>(), Call(mock, 2.0)) |
|
// .WillOnce(Return(1221)); |
|
// auto x = absl::Poisson<int>(mock, 2.0); |
|
// assert(x == 1221) |
|
// |
|
template <typename IntType> |
|
using MockPoisson = |
|
random_internal::MockOverloadSet<absl::poisson_distribution<IntType>, |
|
IntType(MockingBitGen&, double)>; |
|
|
|
// ----------------------------------------------------------------------------- |
|
// absl::MockZipf |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Matches calls to absl::Zipf. |
|
// |
|
// `absl::MockZipf` is a class template used in conjunction with Googletest's |
|
// `ON_CALL()` and `EXPECT_CALL()` macros. To use it, default-construct an |
|
// instance of it inside `ON_CALL()` or `EXPECT_CALL()`, and use `Call(...)` the |
|
// same way one would define mocks on a Googletest `MockFunction()`. |
|
// |
|
// Example: |
|
// |
|
// absl::MockingBitGen mock; |
|
// EXPECT_CALL(absl::MockZipf<int>(), Call(mock, 1000000, 2.0, 1.0)) |
|
// .WillOnce(Return(1221)); |
|
// auto x = absl::Zipf<int>(mock, 1000000, 2.0, 1.0); |
|
// assert(x == 1221) |
|
// |
|
template <typename IntType> |
|
using MockZipf = |
|
random_internal::MockOverloadSet<absl::zipf_distribution<IntType>, |
|
IntType(MockingBitGen&, IntType, double, |
|
double)>; |
|
|
|
ABSL_NAMESPACE_END |
|
} // namespace absl |
|
|
|
#endif // ABSL_RANDOM_MOCK_DISTRIBUTIONS_H_
|
|
|