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|
//===- unittests/ASTMatchers/GTestMatchersTest.cpp - GTest matcher unit tests //
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "ASTMatchersTest.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/ASTMatchers/GtestMatchers.h"
namespace clang {
namespace ast_matchers {
constexpr llvm::StringLiteral GtestMockDecls = R"cc(
static int testerr;
#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
switch (0) \
case 0: \
default: // NOLINT
#define GTEST_NONFATAL_FAILURE_(code) testerr = code
#define GTEST_FATAL_FAILURE_(code) testerr = code
#define GTEST_ASSERT_(expression, on_failure) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (const int gtest_ar = (expression)) \
; \
else \
on_failure(gtest_ar)
// Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT2.
// Don't use this in your code.
#define GTEST_PRED_FORMAT2_(pred_format, v1, v2, on_failure) \
GTEST_ASSERT_(pred_format(#v1, #v2, v1, v2), on_failure)
#define ASSERT_PRED_FORMAT2(pred_format, v1, v2) \
GTEST_PRED_FORMAT2_(pred_format, v1, v2, GTEST_FATAL_FAILURE_)
#define EXPECT_PRED_FORMAT2(pred_format, v1, v2) \
GTEST_PRED_FORMAT2_(pred_format, v1, v2, GTEST_NONFATAL_FAILURE_)
#define EXPECT_EQ(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::EqHelper::Compare, val1, val2)
#define EXPECT_NE(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
#define EXPECT_GE(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGE, val1, val2)
#define EXPECT_GT(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGT, val1, val2)
#define EXPECT_LE(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLE, val1, val2)
#define EXPECT_LT(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLT, val1, val2)
#define ASSERT_EQ(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::EqHelper::Compare, val1, val2)
#define ASSERT_NE(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
namespace testing {
namespace internal {
class EqHelper {
public:
// This templatized version is for the general case.
template <typename T1, typename T2>
static int Compare(const char* lhs_expression, const char* rhs_expression,
const T1& lhs, const T2& rhs) {
return 0;
}
};
template <typename T1, typename T2>
int CmpHelperNE(const char* expr1, const char* expr2, const T1& val1,
const T2& val2) {
return 0;
}
template <typename T1, typename T2>
int CmpHelperGE(const char* expr1, const char* expr2, const T1& val1,
const T2& val2) {
return 0;
}
template <typename T1, typename T2>
int CmpHelperGT(const char* expr1, const char* expr2, const T1& val1,
const T2& val2) {
return 0;
}
template <typename T1, typename T2>
int CmpHelperLE(const char* expr1, const char* expr2, const T1& val1,
const T2& val2) {
return 0;
}
template <typename T1, typename T2>
int CmpHelperLT(const char* expr1, const char* expr2, const T1& val1,
const T2& val2) {
return 0;
}
} // namespace internal
} // namespace testing
)cc";
static std::string wrapGtest(llvm::StringRef Input) {
return (GtestMockDecls + Input).str();
}
TEST(GtestAssertTest, ShouldMatchAssert) {
std::string Input = R"cc(
void Test() { ASSERT_EQ(1010, 4321); }
)cc";
EXPECT_TRUE(matches(wrapGtest(Input),
gtestAssert(GtestCmp::Eq, integerLiteral(equals(1010)),
integerLiteral(equals(4321)))));
}
TEST(GtestAssertTest, ShouldNotMatchExpect) {
std::string Input = R"cc(
void Test() { EXPECT_EQ(2, 3); }
)cc";
EXPECT_TRUE(
notMatches(wrapGtest(Input), gtestAssert(GtestCmp::Eq, expr(), expr())));
}
TEST(GtestAssertTest, ShouldMatchNestedAssert) {
std::string Input = R"cc(
#define WRAPPER(a, b) ASSERT_EQ(a, b)
void Test() { WRAPPER(2, 3); }
)cc";
EXPECT_TRUE(
matches(wrapGtest(Input), gtestAssert(GtestCmp::Eq, expr(), expr())));
}
TEST(GtestExpectTest, ShouldMatchExpect) {
std::string Input = R"cc(
void Test() { EXPECT_EQ(1010, 4321); }
)cc";
EXPECT_TRUE(matches(wrapGtest(Input),
gtestExpect(GtestCmp::Eq, integerLiteral(equals(1010)),
integerLiteral(equals(4321)))));
}
TEST(GtestExpectTest, ShouldNotMatchAssert) {
std::string Input = R"cc(
void Test() { ASSERT_EQ(2, 3); }
)cc";
EXPECT_TRUE(
notMatches(wrapGtest(Input), gtestExpect(GtestCmp::Eq, expr(), expr())));
}
TEST(GtestExpectTest, NeShouldMatchExpectNe) {
std::string Input = R"cc(
void Test() { EXPECT_NE(2, 3); }
)cc";
EXPECT_TRUE(
matches(wrapGtest(Input), gtestExpect(GtestCmp::Ne, expr(), expr())));
}
TEST(GtestExpectTest, LeShouldMatchExpectLe) {
std::string Input = R"cc(
void Test() { EXPECT_LE(2, 3); }
)cc";
EXPECT_TRUE(
matches(wrapGtest(Input), gtestExpect(GtestCmp::Le, expr(), expr())));
}
TEST(GtestExpectTest, LtShouldMatchExpectLt) {
std::string Input = R"cc(
void Test() { EXPECT_LT(2, 3); }
)cc";
EXPECT_TRUE(
matches(wrapGtest(Input), gtestExpect(GtestCmp::Lt, expr(), expr())));
}
TEST(GtestExpectTest, GeShouldMatchExpectGe) {
std::string Input = R"cc(
void Test() { EXPECT_GE(2, 3); }
)cc";
EXPECT_TRUE(
matches(wrapGtest(Input), gtestExpect(GtestCmp::Ge, expr(), expr())));
}
TEST(GtestExpectTest, GtShouldMatchExpectGt) {
std::string Input = R"cc(
void Test() { EXPECT_GT(2, 3); }
)cc";
EXPECT_TRUE(
matches(wrapGtest(Input), gtestExpect(GtestCmp::Gt, expr(), expr())));
}
} // end namespace ast_matchers
} // end namespace clang
|
