Daniel Dunbar | 4cf95d7 | 2009-07-21 07:28:51 +0000 | [diff] [blame] | 1 | //===- 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 Dunbar | dbe77cf | 2009-07-22 17:13:20 +0000 | [diff] [blame] | 12 | #include "llvm/Support/raw_ostream.h" |
Daniel Dunbar | 4cf95d7 | 2009-07-21 07:28:51 +0000 | [diff] [blame] | 13 | using namespace llvm; |
| 14 | |
| 15 | namespace { |
| 16 | |
| 17 | TEST(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 | |
| 24 | TEST(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 | |
| 31 | TEST(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 | |
| 43 | TEST(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 Dunbar | f5fdf73 | 2009-07-21 09:18:49 +0000 | [diff] [blame] | 60 | TEST(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 Dunbar | d61918f | 2009-07-26 03:18:15 +0000 | [diff] [blame] | 67 | 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 Dunbar | f5fdf73 | 2009-07-21 09:18:49 +0000 | [diff] [blame] | 82 | EXPECT_TRUE(Str.startswith("he")); |
| 83 | EXPECT_FALSE(Str.startswith("helloworld")); |
| 84 | EXPECT_FALSE(Str.startswith("hi")); |
Daniel Dunbar | dbe77cf | 2009-07-22 17:13:20 +0000 | [diff] [blame] | 85 | |
| 86 | std::string Storage; |
| 87 | raw_string_ostream OS(Storage); |
| 88 | OS << StringRef("hello"); |
| 89 | EXPECT_EQ("hello", OS.str()); |
Daniel Dunbar | 0ad7f9b | 2009-08-11 20:47:15 +0000 | [diff] [blame] | 90 | |
| 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 Dunbar | 5caba3b | 2009-08-18 18:26:35 +0000 | [diff] [blame] | 97 | |
| 98 | EXPECT_TRUE(Str.count('l') == 2); |
Daniel Dunbar | 323a3e6 | 2009-08-18 18:34:22 +0000 | [diff] [blame] | 99 | EXPECT_TRUE(Str.count('o') == 1); |
Daniel Dunbar | 5caba3b | 2009-08-18 18:26:35 +0000 | [diff] [blame] | 100 | 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 Dunbar | f5fdf73 | 2009-07-21 09:18:49 +0000 | [diff] [blame] | 105 | } |
| 106 | |
Daniel Dunbar | 4cf95d7 | 2009-07-21 07:28:51 +0000 | [diff] [blame] | 107 | } // end anonymous namespace |