1 //===- llvm/unittest/ADT/StringRefTest.cpp - StringRef unit 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 "gtest/gtest.h"
11 #include "llvm/ADT/StringRef.h"
16 TEST(StringRefTest, Construction) {
17 EXPECT_TRUE(StringRef() == "");
18 EXPECT_TRUE(StringRef("hello") == "hello");
19 EXPECT_TRUE(StringRef("hello world", 5) == "hello");
20 EXPECT_TRUE(StringRef(std::string("hello")) == "hello");
23 TEST(StringRefTest, Iteration) {
25 const char *p = "hello";
26 for (const char *it = S.begin(), *ie = S.end(); it != ie; ++it, ++p)
27 EXPECT_TRUE(*p == *it);
30 TEST(StringRefTest, StringOps) {
31 const char *p = "hello";
32 EXPECT_EQ(p, StringRef(p, 0).data());
33 EXPECT_TRUE(StringRef().empty());
34 EXPECT_EQ((size_t) 5, StringRef("hello").size());
35 EXPECT_EQ(-1, StringRef("aab").compare("aad"));
36 EXPECT_EQ( 0, StringRef("aab").compare("aab"));
37 EXPECT_EQ( 1, StringRef("aab").compare("aaa"));
38 EXPECT_EQ(-1, StringRef("aab").compare("aabb"));
39 EXPECT_EQ( 1, StringRef("aab").compare("aa"));
42 TEST(StringRefTest, Operators) {
43 EXPECT_TRUE(StringRef() == "");
44 EXPECT_TRUE(StringRef("aab") < StringRef("aad"));
45 EXPECT_FALSE(StringRef("aab") < StringRef("aab"));
46 EXPECT_TRUE(StringRef("aab") <= StringRef("aab"));
47 EXPECT_FALSE(StringRef("aab") <= StringRef("aaa"));
48 EXPECT_TRUE(StringRef("aad") > StringRef("aab"));
49 EXPECT_FALSE(StringRef("aab") > StringRef("aab"));
50 EXPECT_TRUE(StringRef("aab") >= StringRef("aab"));
51 EXPECT_FALSE(StringRef("aaa") >= StringRef("aab"));
52 EXPECT_TRUE(StringRef("aab") == StringRef("aab"));
53 EXPECT_FALSE(StringRef("aab") == StringRef("aac"));
54 EXPECT_FALSE(StringRef("aab") != StringRef("aab"));
55 EXPECT_TRUE(StringRef("aab") != StringRef("aac"));
56 EXPECT_EQ('a', StringRef("aab")[1]);
59 } // end anonymous namespace