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Add StringRef class, with fixes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76543 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar committed 2009-07-21 07:28:51 +00:00
1 parent 05717f9a80
commit 4cf95d75c6
2 files changed
+186
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unittests/ADT/StringRefTest.cpp
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//===- 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"
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]);
}
} // end anonymous namespace