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974a445bd9
subsequent changes are easier to review. About to fix some layering issues, and wanted to separate out the necessary churn. Also comment and sink the include of "Windows.h" in three .inc files to match the usage in Memory.inc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198685 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
1.3 KiB
C++
65 lines
1.3 KiB
C++
//===- unittests/ErrorOrTest.cpp - ErrorOr.h tests ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/ErrorOr.h"
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#include "gtest/gtest.h"
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#include <memory>
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using namespace llvm;
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namespace {
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ErrorOr<int> t1() {return 1;}
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ErrorOr<int> t2() { return errc::invalid_argument; }
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TEST(ErrorOr, SimpleValue) {
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ErrorOr<int> a = t1();
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EXPECT_TRUE(a);
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EXPECT_EQ(1, *a);
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a = t2();
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EXPECT_FALSE(a);
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EXPECT_EQ(errc::invalid_argument, a);
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#ifdef EXPECT_DEBUG_DEATH
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EXPECT_DEBUG_DEATH(*a, "Cannot get value when an error exists");
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#endif
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}
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#if LLVM_HAS_CXX11_STDLIB
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ErrorOr<std::unique_ptr<int> > t3() {
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return std::unique_ptr<int>(new int(3));
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}
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#endif
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TEST(ErrorOr, Types) {
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int x;
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ErrorOr<int&> a(x);
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*a = 42;
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EXPECT_EQ(42, x);
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#if LLVM_HAS_CXX11_STDLIB
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// Move only types.
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EXPECT_EQ(3, **t3());
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#endif
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}
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struct B {};
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struct D : B {};
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TEST(ErrorOr, Covariant) {
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ErrorOr<B*> b(ErrorOr<D*>(0));
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b = ErrorOr<D*>(0);
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#if LLVM_HAS_CXX11_STDLIB
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ErrorOr<std::unique_ptr<B> > b1(ErrorOr<std::unique_ptr<D> >(0));
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b1 = ErrorOr<std::unique_ptr<D> >(0);
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#endif
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}
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} // end anon namespace
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