| //===- llvm/unittest/ADT/StringRefTest.cpp - StringRef unit tests ---------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "gtest/gtest.h" |
| #include "llvm/ADT/StringRef.h" |
| #include "llvm/Support/raw_ostream.h" |
| using namespace llvm; |
| |
| namespace { |
| |
| TEST(StringRefTest, Construction) { |
| EXPECT_TRUE(StringRef() == ""); |
| EXPECT_TRUE(StringRef("hello") == "hello"); |
| EXPECT_TRUE(StringRef("hello world", 5) == "hello"); |
| EXPECT_TRUE(StringRef(std::string("hello")) == "hello"); |
| } |
| |
| TEST(StringRefTest, Iteration) { |
| StringRef S("hello"); |
| const char *p = "hello"; |
| for (const char *it = S.begin(), *ie = S.end(); it != ie; ++it, ++p) |
| EXPECT_TRUE(*p == *it); |
| } |
| |
| TEST(StringRefTest, StringOps) { |
| const char *p = "hello"; |
| EXPECT_EQ(p, StringRef(p, 0).data()); |
| EXPECT_TRUE(StringRef().empty()); |
| EXPECT_EQ((size_t) 5, StringRef("hello").size()); |
| EXPECT_EQ(-1, StringRef("aab").compare("aad")); |
| EXPECT_EQ( 0, StringRef("aab").compare("aab")); |
| EXPECT_EQ( 1, StringRef("aab").compare("aaa")); |
| EXPECT_EQ(-1, StringRef("aab").compare("aabb")); |
| EXPECT_EQ( 1, StringRef("aab").compare("aa")); |
| } |
| |
| TEST(StringRefTest, Operators) { |
| EXPECT_TRUE(StringRef() == ""); |
| EXPECT_TRUE(StringRef("aab") < StringRef("aad")); |
| EXPECT_FALSE(StringRef("aab") < StringRef("aab")); |
| EXPECT_TRUE(StringRef("aab") <= StringRef("aab")); |
| EXPECT_FALSE(StringRef("aab") <= StringRef("aaa")); |
| EXPECT_TRUE(StringRef("aad") > StringRef("aab")); |
| EXPECT_FALSE(StringRef("aab") > StringRef("aab")); |
| EXPECT_TRUE(StringRef("aab") >= StringRef("aab")); |
| EXPECT_FALSE(StringRef("aaa") >= StringRef("aab")); |
| EXPECT_TRUE(StringRef("aab") == StringRef("aab")); |
| EXPECT_FALSE(StringRef("aab") == StringRef("aac")); |
| EXPECT_FALSE(StringRef("aab") != StringRef("aab")); |
| EXPECT_TRUE(StringRef("aab") != StringRef("aac")); |
| EXPECT_EQ('a', StringRef("aab")[1]); |
| } |
| |
| TEST(StringRefTest, Utilities) { |
| StringRef Str("hello"); |
| EXPECT_TRUE(Str.substr(3) == "lo"); |
| EXPECT_TRUE(Str.substr(100) == ""); |
| EXPECT_TRUE(Str.substr(0, 100) == "hello"); |
| EXPECT_TRUE(Str.substr(4, 10) == "o"); |
| |
| EXPECT_TRUE(Str.slice(2, 3) == "l"); |
| EXPECT_TRUE(Str.slice(1, 4) == "ell"); |
| EXPECT_TRUE(Str.slice(2, 100) == "llo"); |
| EXPECT_TRUE(Str.slice(2, 1) == ""); |
| EXPECT_TRUE(Str.slice(10, 20) == ""); |
| |
| EXPECT_TRUE(Str.split('X') == std::make_pair(StringRef("hello"), |
| StringRef(""))); |
| EXPECT_TRUE(Str.split('e') == std::make_pair(StringRef("h"), |
| StringRef("llo"))); |
| EXPECT_TRUE(Str.split('h') == std::make_pair(StringRef(""), |
| StringRef("ello"))); |
| EXPECT_TRUE(Str.split('o') == std::make_pair(StringRef("hell"), |
| StringRef(""))); |
| |
| EXPECT_TRUE(Str.startswith("he")); |
| EXPECT_FALSE(Str.startswith("helloworld")); |
| EXPECT_FALSE(Str.startswith("hi")); |
| |
| std::string Storage; |
| raw_string_ostream OS(Storage); |
| OS << StringRef("hello"); |
| EXPECT_EQ("hello", OS.str()); |
| |
| EXPECT_TRUE(Str.find('l') == 2); |
| EXPECT_TRUE(Str.find('z') == StringRef::npos); |
| EXPECT_TRUE(Str.find("helloworld") == StringRef::npos); |
| EXPECT_TRUE(Str.find("hello") == 0); |
| EXPECT_TRUE(Str.find("ello") == 1); |
| EXPECT_TRUE(Str.find("zz") == StringRef::npos); |
| |
| EXPECT_TRUE(Str.count('l') == 2); |
| EXPECT_TRUE(Str.count('o') == 1); |
| EXPECT_TRUE(Str.count('z') == 0); |
| EXPECT_TRUE(Str.count("helloworld") == 0); |
| EXPECT_TRUE(Str.count("hello") == 1); |
| EXPECT_TRUE(Str.count("ello") == 1); |
| EXPECT_TRUE(Str.count("zz") == 0); |
| } |
| |
| } // end anonymous namespace |