blob: 320633aca8a1dee635502d769b0049ec0fbe7feb [file] [log] [blame]
Daniel Dunbar4cf95d72009-07-21 07:28:51 +00001//===- llvm/unittest/ADT/StringRefTest.cpp - StringRef unit tests ---------===//
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 "gtest/gtest.h"
11#include "llvm/ADT/StringRef.h"
Daniel Dunbardbe77cf2009-07-22 17:13:20 +000012#include "llvm/Support/raw_ostream.h"
Daniel Dunbar4cf95d72009-07-21 07:28:51 +000013using namespace llvm;
14
15namespace {
16
17TEST(StringRefTest, Construction) {
18 EXPECT_TRUE(StringRef() == "");
19 EXPECT_TRUE(StringRef("hello") == "hello");
20 EXPECT_TRUE(StringRef("hello world", 5) == "hello");
21 EXPECT_TRUE(StringRef(std::string("hello")) == "hello");
22}
23
24TEST(StringRefTest, Iteration) {
25 StringRef S("hello");
26 const char *p = "hello";
27 for (const char *it = S.begin(), *ie = S.end(); it != ie; ++it, ++p)
28 EXPECT_TRUE(*p == *it);
29}
30
31TEST(StringRefTest, StringOps) {
32 const char *p = "hello";
33 EXPECT_EQ(p, StringRef(p, 0).data());
34 EXPECT_TRUE(StringRef().empty());
35 EXPECT_EQ((size_t) 5, StringRef("hello").size());
36 EXPECT_EQ(-1, StringRef("aab").compare("aad"));
37 EXPECT_EQ( 0, StringRef("aab").compare("aab"));
38 EXPECT_EQ( 1, StringRef("aab").compare("aaa"));
39 EXPECT_EQ(-1, StringRef("aab").compare("aabb"));
40 EXPECT_EQ( 1, StringRef("aab").compare("aa"));
41}
42
43TEST(StringRefTest, Operators) {
44 EXPECT_TRUE(StringRef() == "");
45 EXPECT_TRUE(StringRef("aab") < StringRef("aad"));
46 EXPECT_FALSE(StringRef("aab") < StringRef("aab"));
47 EXPECT_TRUE(StringRef("aab") <= StringRef("aab"));
48 EXPECT_FALSE(StringRef("aab") <= StringRef("aaa"));
49 EXPECT_TRUE(StringRef("aad") > StringRef("aab"));
50 EXPECT_FALSE(StringRef("aab") > StringRef("aab"));
51 EXPECT_TRUE(StringRef("aab") >= StringRef("aab"));
52 EXPECT_FALSE(StringRef("aaa") >= StringRef("aab"));
53 EXPECT_TRUE(StringRef("aab") == StringRef("aab"));
54 EXPECT_FALSE(StringRef("aab") == StringRef("aac"));
55 EXPECT_FALSE(StringRef("aab") != StringRef("aab"));
56 EXPECT_TRUE(StringRef("aab") != StringRef("aac"));
57 EXPECT_EQ('a', StringRef("aab")[1]);
58}
59
Daniel Dunbarf5fdf732009-07-21 09:18:49 +000060TEST(StringRefTest, Utilities) {
61 StringRef Str("hello");
62 EXPECT_TRUE(Str.substr(3) == "lo");
63 EXPECT_TRUE(Str.substr(100) == "");
64 EXPECT_TRUE(Str.substr(0, 100) == "hello");
65 EXPECT_TRUE(Str.substr(4, 10) == "o");
66
Daniel Dunbard61918f2009-07-26 03:18:15 +000067 EXPECT_TRUE(Str.slice(2, 3) == "l");
68 EXPECT_TRUE(Str.slice(1, 4) == "ell");
69 EXPECT_TRUE(Str.slice(2, 100) == "llo");
70 EXPECT_TRUE(Str.slice(2, 1) == "");
71 EXPECT_TRUE(Str.slice(10, 20) == "");
72
73 EXPECT_TRUE(Str.split('X') == std::make_pair(StringRef("hello"),
74 StringRef("")));
75 EXPECT_TRUE(Str.split('e') == std::make_pair(StringRef("h"),
76 StringRef("llo")));
77 EXPECT_TRUE(Str.split('h') == std::make_pair(StringRef(""),
78 StringRef("ello")));
79 EXPECT_TRUE(Str.split('o') == std::make_pair(StringRef("hell"),
80 StringRef("")));
81
Daniel Dunbarf5fdf732009-07-21 09:18:49 +000082 EXPECT_TRUE(Str.startswith("he"));
83 EXPECT_FALSE(Str.startswith("helloworld"));
84 EXPECT_FALSE(Str.startswith("hi"));
Daniel Dunbardbe77cf2009-07-22 17:13:20 +000085
86 std::string Storage;
87 raw_string_ostream OS(Storage);
88 OS << StringRef("hello");
89 EXPECT_EQ("hello", OS.str());
Daniel Dunbar0ad7f9b2009-08-11 20:47:15 +000090
91 EXPECT_TRUE(Str.find('l') == 2);
92 EXPECT_TRUE(Str.find('z') == StringRef::npos);
93 EXPECT_TRUE(Str.find("helloworld") == StringRef::npos);
94 EXPECT_TRUE(Str.find("hello") == 0);
95 EXPECT_TRUE(Str.find("ello") == 1);
96 EXPECT_TRUE(Str.find("zz") == StringRef::npos);
Daniel Dunbar5caba3b2009-08-18 18:26:35 +000097
98 EXPECT_TRUE(Str.count('l') == 2);
Daniel Dunbar323a3e62009-08-18 18:34:22 +000099 EXPECT_TRUE(Str.count('o') == 1);
Daniel Dunbar5caba3b2009-08-18 18:26:35 +0000100 EXPECT_TRUE(Str.count('z') == 0);
101 EXPECT_TRUE(Str.count("helloworld") == 0);
102 EXPECT_TRUE(Str.count("hello") == 1);
103 EXPECT_TRUE(Str.count("ello") == 1);
104 EXPECT_TRUE(Str.count("zz") == 0);
Daniel Dunbarf5fdf732009-07-21 09:18:49 +0000105}
106
Daniel Dunbar4cf95d72009-07-21 07:28:51 +0000107} // end anonymous namespace