1 //===- unittests/ErrorOrTest.cpp - ErrorOr.h tests ------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/Support/ErrorOr.h"
12 #include "gtest/gtest.h"
20 ErrorOr<int> t1() {return 1;}
21 ErrorOr<int> t2() {return make_error_code(errc::invalid_argument);}
23 TEST(ErrorOr, SimpleValue) {
24 ErrorOr<int> a = t1();
30 EXPECT_EQ(errc::invalid_argument, a);
31 #ifdef EXPECT_DEBUG_DEATH
32 EXPECT_DEBUG_DEATH(*a, "Cannot get value when an error exists");
36 #if LLVM_HAS_CXX11_STDLIB
37 ErrorOr<std::unique_ptr<int> > t3() {
38 return std::unique_ptr<int>(new int(3));
42 TEST(ErrorOr, Types) {
48 EXPECT_FALSE(ErrorOr<void>(make_error_code(errc::broken_pipe)));
49 EXPECT_TRUE(ErrorOr<void>(make_error_code(errc::success)));
51 #if LLVM_HAS_CXX11_STDLIB
60 TEST(ErrorOr, Covariant) {
61 ErrorOr<B*> b(ErrorOr<D*>(0));
63 #if LLVM_HAS_CXX11_STDLIB
64 ErrorOr<std::unique_ptr<B> > b1(ErrorOr<std::unique_ptr<D> >(0));
67 } // end anon namespace
69 struct InvalidArgError {
71 InvalidArgError(std::string S) : ArgName(S) {}
77 struct ErrorOrUserDataTraits<InvalidArgError> : true_type {
78 static error_code error() {
79 return make_error_code(errc::invalid_argument);
82 } // end namespace llvm
85 return InvalidArgError("adena");
89 return InvalidArgError("pie");
93 TEST(ErrorOr, UserErrorData) {
94 ErrorOr<int> a = t4();
95 EXPECT_EQ(errc::invalid_argument, a);
96 EXPECT_EQ("adena", t4().getError<InvalidArgError>().ArgName);
98 ErrorOr<void> b = t5();
99 EXPECT_EQ(errc::invalid_argument, b);
100 EXPECT_EQ("pie", b.getError<InvalidArgError>().ArgName);
102 } // end anon namespace