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274 lines
8.8 KiB
C++
274 lines
8.8 KiB
C++
//===- llvm/unittest/ADT/StringRefTest.cpp - StringRef unit tests ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "gtest/gtest.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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namespace llvm {
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std::ostream &operator<<(std::ostream &OS, const StringRef &S) {
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OS << S;
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return OS;
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}
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std::ostream &operator<<(std::ostream &OS,
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const std::pair<StringRef, StringRef> &P) {
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OS << "(" << P.first << ", " << P.second << ")";
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return OS;
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}
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}
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namespace {
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TEST(StringRefTest, Construction) {
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EXPECT_EQ("", StringRef());
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EXPECT_EQ("hello", StringRef("hello"));
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EXPECT_EQ("hello", StringRef("hello world", 5));
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EXPECT_EQ("hello", StringRef(std::string("hello")));
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}
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TEST(StringRefTest, Iteration) {
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StringRef S("hello");
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const char *p = "hello";
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for (const char *it = S.begin(), *ie = S.end(); it != ie; ++it, ++p)
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EXPECT_EQ(*it, *p);
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}
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TEST(StringRefTest, StringOps) {
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const char *p = "hello";
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EXPECT_EQ(p, StringRef(p, 0).data());
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EXPECT_TRUE(StringRef().empty());
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EXPECT_EQ((size_t) 5, StringRef("hello").size());
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EXPECT_EQ(-1, StringRef("aab").compare("aad"));
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EXPECT_EQ( 0, StringRef("aab").compare("aab"));
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EXPECT_EQ( 1, StringRef("aab").compare("aaa"));
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EXPECT_EQ(-1, StringRef("aab").compare("aabb"));
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EXPECT_EQ( 1, StringRef("aab").compare("aa"));
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EXPECT_EQ(-1, StringRef("aab").compare_numeric("aad"));
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EXPECT_EQ( 0, StringRef("aab").compare_numeric("aab"));
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EXPECT_EQ( 1, StringRef("aab").compare_numeric("aaa"));
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EXPECT_EQ(-1, StringRef("aab").compare_numeric("aabb"));
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EXPECT_EQ( 1, StringRef("aab").compare_numeric("aa"));
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EXPECT_EQ(-1, StringRef("1").compare_numeric("10"));
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EXPECT_EQ( 0, StringRef("10").compare_numeric("10"));
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EXPECT_EQ( 0, StringRef("10a").compare_numeric("10a"));
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EXPECT_EQ( 1, StringRef("2").compare_numeric("1"));
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EXPECT_EQ( 0, StringRef("llvm_v1i64_ty").compare_numeric("llvm_v1i64_ty"));
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}
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TEST(StringRefTest, Operators) {
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EXPECT_EQ("", StringRef());
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EXPECT_TRUE(StringRef("aab") < StringRef("aad"));
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EXPECT_FALSE(StringRef("aab") < StringRef("aab"));
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EXPECT_TRUE(StringRef("aab") <= StringRef("aab"));
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EXPECT_FALSE(StringRef("aab") <= StringRef("aaa"));
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EXPECT_TRUE(StringRef("aad") > StringRef("aab"));
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EXPECT_FALSE(StringRef("aab") > StringRef("aab"));
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EXPECT_TRUE(StringRef("aab") >= StringRef("aab"));
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EXPECT_FALSE(StringRef("aaa") >= StringRef("aab"));
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EXPECT_EQ(StringRef("aab"), StringRef("aab"));
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EXPECT_FALSE(StringRef("aab") == StringRef("aac"));
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EXPECT_FALSE(StringRef("aab") != StringRef("aab"));
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EXPECT_TRUE(StringRef("aab") != StringRef("aac"));
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EXPECT_EQ('a', StringRef("aab")[1]);
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}
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TEST(StringRefTest, Substr) {
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StringRef Str("hello");
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EXPECT_EQ("lo", Str.substr(3));
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EXPECT_EQ("", Str.substr(100));
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EXPECT_EQ("hello", Str.substr(0, 100));
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EXPECT_EQ("o", Str.substr(4, 10));
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}
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TEST(StringRefTest, Slice) {
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StringRef Str("hello");
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EXPECT_EQ("l", Str.slice(2, 3));
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EXPECT_EQ("ell", Str.slice(1, 4));
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EXPECT_EQ("llo", Str.slice(2, 100));
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EXPECT_EQ("", Str.slice(2, 1));
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EXPECT_EQ("", Str.slice(10, 20));
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}
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TEST(StringRefTest, Split) {
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StringRef Str("hello");
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EXPECT_EQ(std::make_pair(StringRef("hello"), StringRef("")),
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Str.split('X'));
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EXPECT_EQ(std::make_pair(StringRef("h"), StringRef("llo")),
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Str.split('e'));
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EXPECT_EQ(std::make_pair(StringRef(""), StringRef("ello")),
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Str.split('h'));
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EXPECT_EQ(std::make_pair(StringRef("he"), StringRef("lo")),
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Str.split('l'));
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EXPECT_EQ(std::make_pair(StringRef("hell"), StringRef("")),
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Str.split('o'));
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EXPECT_EQ(std::make_pair(StringRef("hello"), StringRef("")),
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Str.rsplit('X'));
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EXPECT_EQ(std::make_pair(StringRef("h"), StringRef("llo")),
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Str.rsplit('e'));
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EXPECT_EQ(std::make_pair(StringRef(""), StringRef("ello")),
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Str.rsplit('h'));
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EXPECT_EQ(std::make_pair(StringRef("hel"), StringRef("o")),
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Str.rsplit('l'));
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EXPECT_EQ(std::make_pair(StringRef("hell"), StringRef("")),
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Str.rsplit('o'));
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}
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TEST(StringRefTest, Split2) {
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SmallVector<StringRef, 5> parts;
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SmallVector<StringRef, 5> expected;
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expected.push_back("ab"); expected.push_back("c");
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StringRef(",ab,,c,").split(parts, ",", -1, false);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back(""); expected.push_back("ab"); expected.push_back("");
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expected.push_back("c"); expected.push_back("");
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StringRef(",ab,,c,").split(parts, ",", -1, true);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("");
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StringRef("").split(parts, ",", -1, true);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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StringRef("").split(parts, ",", -1, false);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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StringRef(",").split(parts, ",", -1, false);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back(""); expected.push_back("");
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StringRef(",").split(parts, ",", -1, true);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("a"); expected.push_back("b");
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StringRef("a,b").split(parts, ",", -1, true);
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EXPECT_TRUE(parts == expected);
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// Test MaxSplit
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expected.clear(); parts.clear();
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expected.push_back("a,,b,c");
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StringRef("a,,b,c").split(parts, ",", 0, true);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("a,,b,c");
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StringRef("a,,b,c").split(parts, ",", 0, false);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("a"); expected.push_back(",b,c");
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StringRef("a,,b,c").split(parts, ",", 1, true);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("a"); expected.push_back(",b,c");
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StringRef("a,,b,c").split(parts, ",", 1, false);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("a"); expected.push_back(""); expected.push_back("b,c");
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StringRef("a,,b,c").split(parts, ",", 2, true);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("a"); expected.push_back("b,c");
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StringRef("a,,b,c").split(parts, ",", 2, false);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("a"); expected.push_back(""); expected.push_back("b");
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expected.push_back("c");
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StringRef("a,,b,c").split(parts, ",", 3, true);
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EXPECT_TRUE(parts == expected);
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expected.clear(); parts.clear();
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expected.push_back("a"); expected.push_back("b"); expected.push_back("c");
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StringRef("a,,b,c").split(parts, ",", 3, false);
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EXPECT_TRUE(parts == expected);
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}
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TEST(StringRefTest, StartsWith) {
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StringRef Str("hello");
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EXPECT_TRUE(Str.startswith("he"));
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EXPECT_FALSE(Str.startswith("helloworld"));
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EXPECT_FALSE(Str.startswith("hi"));
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}
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TEST(StringRefTest, EndsWith) {
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StringRef Str("hello");
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EXPECT_TRUE(Str.endswith("lo"));
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EXPECT_FALSE(Str.endswith("helloworld"));
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EXPECT_FALSE(Str.endswith("worldhello"));
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EXPECT_FALSE(Str.endswith("so"));
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}
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TEST(StringRefTest, Find) {
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StringRef Str("hello");
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EXPECT_EQ(2U, Str.find('l'));
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EXPECT_EQ(StringRef::npos, Str.find('z'));
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EXPECT_EQ(StringRef::npos, Str.find("helloworld"));
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EXPECT_EQ(0U, Str.find("hello"));
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EXPECT_EQ(1U, Str.find("ello"));
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EXPECT_EQ(StringRef::npos, Str.find("zz"));
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EXPECT_EQ(2U, Str.find("ll", 2));
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EXPECT_EQ(StringRef::npos, Str.find("ll", 3));
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EXPECT_EQ(3U, Str.rfind('l'));
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EXPECT_EQ(StringRef::npos, Str.rfind('z'));
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EXPECT_EQ(StringRef::npos, Str.rfind("helloworld"));
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EXPECT_EQ(0U, Str.rfind("hello"));
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EXPECT_EQ(1U, Str.rfind("ello"));
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EXPECT_EQ(StringRef::npos, Str.rfind("zz"));
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EXPECT_EQ(2U, Str.find_first_of('l'));
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EXPECT_EQ(1U, Str.find_first_of("el"));
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EXPECT_EQ(StringRef::npos, Str.find_first_of("xyz"));
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EXPECT_EQ(1U, Str.find_first_not_of('h'));
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EXPECT_EQ(4U, Str.find_first_not_of("hel"));
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EXPECT_EQ(StringRef::npos, Str.find_first_not_of("hello"));
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}
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TEST(StringRefTest, Count) {
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StringRef Str("hello");
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EXPECT_EQ(2U, Str.count('l'));
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EXPECT_EQ(1U, Str.count('o'));
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EXPECT_EQ(0U, Str.count('z'));
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EXPECT_EQ(0U, Str.count("helloworld"));
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EXPECT_EQ(1U, Str.count("hello"));
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EXPECT_EQ(1U, Str.count("ello"));
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EXPECT_EQ(0U, Str.count("zz"));
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}
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TEST(StringRefTest, EditDistance) {
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StringRef Str("hello");
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EXPECT_EQ(2U, Str.edit_distance("hill"));
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}
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TEST(StringRefTest, Misc) {
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std::string Storage;
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raw_string_ostream OS(Storage);
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OS << StringRef("hello");
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EXPECT_EQ("hello", OS.str());
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}
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} // end anonymous namespace
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