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 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>(errc::broken_pipe));
49 EXPECT_TRUE(ErrorOr<void>(errc::success));
51 #if LLVM_HAS_CXX11_STDLIB
60 TEST(ErrorOr, Covariant) {
61 ErrorOr<B*> b(ErrorOr<D*>(0));
64 #if LLVM_HAS_CXX11_STDLIB
65 ErrorOr<std::unique_ptr<B> > b1(ErrorOr<std::unique_ptr<D> >(0));
66 b1 = ErrorOr<std::unique_ptr<D> >(0);
69 } // end anon namespace
71 struct InvalidArgError {
73 InvalidArgError(std::string S) : ArgName(S) {}
79 struct ErrorOrUserDataTraits<InvalidArgError> : true_type {
80 static error_code error() {
81 return make_error_code(errc::invalid_argument);
84 } // end namespace llvm
87 return InvalidArgError("adena");
91 return InvalidArgError("pie");
95 TEST(ErrorOr, UserErrorData) {
96 ErrorOr<int> a = t4();
97 EXPECT_EQ(errc::invalid_argument, a);
98 EXPECT_EQ("adena", t4().getError<InvalidArgError>().ArgName);
100 ErrorOr<void> b = t5();
101 EXPECT_EQ(errc::invalid_argument, b);
102 EXPECT_EQ("pie", b.getError<InvalidArgError>().ArgName);
104 } // end anon namespace