1 //===----- SymbolStringPoolTest.cpp - Unit tests for SymbolStringPool -----===//
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/ExecutionEngine/Orc/SymbolStringPool.h"
11 #include "gtest/gtest.h"
12
13 using namespace llvm;
14 using namespace llvm::orc;
15
16 namespace {
17
TEST(SymbolStringPool,UniquingAndComparisons)18 TEST(SymbolStringPool, UniquingAndComparisons) {
19 SymbolStringPool SP;
20 auto P1 = SP.intern("hello");
21
22 std::string S("hel");
23 S += "lo";
24 auto P2 = SP.intern(S);
25
26 auto P3 = SP.intern("goodbye");
27
28 EXPECT_EQ(P1, P2) << "Failed to unique entries";
29 EXPECT_NE(P1, P3) << "Inequal pooled symbol strings comparing equal";
30
31 // We want to test that less-than comparison of SymbolStringPtrs compiles,
32 // however we can't test the actual result as this is a pointer comparison and
33 // SymbolStringPtr doesn't expose the underlying address of the string.
34 (void)(P1 < P3);
35 }
36
TEST(SymbolStringPool,Dereference)37 TEST(SymbolStringPool, Dereference) {
38 SymbolStringPool SP;
39 auto Foo = SP.intern("foo");
40 EXPECT_EQ(*Foo, "foo") << "Equality on dereferenced string failed";
41 }
42
TEST(SymbolStringPool,ClearDeadEntries)43 TEST(SymbolStringPool, ClearDeadEntries) {
44 SymbolStringPool SP;
45 {
46 auto P1 = SP.intern("s1");
47 SP.clearDeadEntries();
48 EXPECT_FALSE(SP.empty()) << "\"s1\" entry in pool should still be retained";
49 }
50 SP.clearDeadEntries();
51 EXPECT_TRUE(SP.empty()) << "pool should be empty";
52 }
53
54 }
55