1 //===- llvm/unittest/ADT/ScopeExit.cpp - Scope exit unit tests --*- C++ -*-===// 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 #include "llvm/ADT/ScopeExit.h" 11 #include "gtest/gtest.h" 12 13 using namespace llvm; 14 15 namespace { 16 17 TEST(ScopeExitTest, Basic) { 18 struct Callable { 19 bool &Called; 20 Callable(bool &Called) : Called(Called) {} 21 Callable(Callable &&RHS) : Called(RHS.Called) {} 22 void operator()() { Called = true; } 23 }; 24 bool Called = false; 25 { 26 auto g = make_scope_exit(Callable(Called)); 27 EXPECT_FALSE(Called); 28 } 29 EXPECT_TRUE(Called); 30 } 31 32 TEST(ScopeExitTest, Release) { 33 int Count = 0; 34 auto Increment = [&] { ++Count; }; 35 { 36 auto G = make_scope_exit(Increment); 37 auto H = std::move(G); 38 auto I = std::move(G); 39 EXPECT_EQ(0, Count); 40 } 41 EXPECT_EQ(1, Count); 42 { 43 auto G = make_scope_exit(Increment); 44 G.release(); 45 } 46 EXPECT_EQ(1, Count); 47 } 48 49 } // end anonymous namespace 50
