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comparison libc/test/ErrnoSetterMatcher.h @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
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children c4bab56944e8
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173:0572611fdcc8 207:2e18cbf3894f
1 //===-- ErrnoSetterMatcher.h ------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #ifndef LLVM_LIBC_TEST_ERRNOSETTERMATCHER_H
10 #define LLVM_LIBC_TEST_ERRNOSETTERMATCHER_H
11
12 #include "src/errno/llvmlibc_errno.h"
13 #include "utils/UnitTest/Test.h"
14
15 namespace __llvm_libc {
16 namespace testing {
17
18 namespace internal {
19
20 extern "C" const char *strerror(int);
21
22 template <typename T> class ErrnoSetterMatcher : public Matcher<T> {
23 T ExpectedReturn;
24 T ActualReturn;
25 int ExpectedErrno;
26 int ActualErrno;
27
28 public:
29 ErrnoSetterMatcher(T ExpectedReturn, int ExpectedErrno)
30 : ExpectedReturn(ExpectedReturn), ExpectedErrno(ExpectedErrno) {}
31
32 void explainError(testutils::StreamWrapper &OS) override {
33 if (ActualReturn != ExpectedReturn)
34 OS << "Expected return to be " << ExpectedReturn << " but got "
35 << ActualReturn << ".\nExpecte errno to be " << strerror(ExpectedErrno)
36 << " but got " << strerror(ActualErrno) << ".\n";
37 else
38 OS << "Correct value " << ExpectedReturn
39 << " was returned\nBut errno was unexpectely set to "
40 << strerror(ActualErrno) << ".\n";
41 }
42
43 bool match(T Got) {
44 ActualReturn = Got;
45 ActualErrno = llvmlibc_errno;
46 llvmlibc_errno = 0;
47 return Got == ExpectedReturn && ActualErrno == ExpectedErrno;
48 }
49 };
50
51 } // namespace internal
52
53 namespace ErrnoSetterMatcher {
54
55 template <typename RetT = int>
56 static internal::ErrnoSetterMatcher<RetT> Succeeds(RetT ExpectedReturn = 0,
57 int ExpectedErrno = 0) {
58 return {ExpectedReturn, ExpectedErrno};
59 }
60
61 template <typename RetT = int>
62 static internal::ErrnoSetterMatcher<RetT> Fails(int ExpectedErrno,
63 RetT ExpectedReturn = -1) {
64 return {ExpectedReturn, ExpectedErrno};
65 }
66
67 } // namespace ErrnoSetterMatcher
68
69 } // namespace testing
70 } // namespace __llvm_libc
71
72 #endif // LLVM_LIBC_TEST_ERRNOSETTERMATCHER_H