1 //===- llvm/Testing/Support/Error.h ---------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_TESTING_SUPPORT_ERROR_H 11 #define LLVM_TESTING_SUPPORT_ERROR_H 12 13 #include "llvm/ADT/Optional.h" 14 #include "llvm/Support/Error.h" 15 #include "llvm/Testing/Support/SupportHelpers.h" 16 17 #include "gmock/gmock.h" 18 #include <ostream> 19 20 namespace llvm { 21 namespace detail { 22 ErrorHolder TakeError(Error Err); 23 24 template <typename T> ExpectedHolder<T> TakeExpected(Expected<T> &Exp) { 25 llvm::detail::ExpectedHolder<T> Result; 26 auto &EH = static_cast<llvm::detail::ErrorHolder &>(Result); 27 EH = TakeError(Exp.takeError()); 28 if (Result.Success) 29 Result.Value = &(*Exp); 30 return Result; 31 } 32 33 template <typename T> ExpectedHolder<T> TakeExpected(Expected<T> &&Exp) { 34 return TakeExpected(Exp); 35 } 36 } // namespace detail 37 38 #define EXPECT_THAT_ERROR(Err, Matcher) \ 39 EXPECT_THAT(llvm::detail::TakeError(Err), Matcher) 40 #define ASSERT_THAT_ERROR(Err, Matcher) \ 41 ASSERT_THAT(llvm::detail::TakeError(Err), Matcher) 42 43 #define EXPECT_THAT_EXPECTED(Err, Matcher) \ 44 EXPECT_THAT(llvm::detail::TakeExpected(Err), Matcher) 45 #define ASSERT_THAT_EXPECTED(Err, Matcher) \ 46 ASSERT_THAT(llvm::detail::TakeExpected(Err), Matcher) 47 48 MATCHER(Succeeded, "") { return arg.Success; } 49 MATCHER(Failed, "") { return !arg.Success; } 50 51 MATCHER_P(HasValue, value, 52 "succeeded with value " + testing::PrintToString(value)) { 53 if (!arg.Success) { 54 *result_listener << "operation failed"; 55 return false; 56 } 57 58 assert(arg.Value.hasValue()); 59 if (**arg.Value != value) { 60 *result_listener << "but \"" + testing::PrintToString(**arg.Value) + 61 "\" != " + testing::PrintToString(value); 62 return false; 63 } 64 65 return true; 66 } 67 } // namespace llvm 68 69 #endif 70
