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95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
//===- StringExtrasTest.cpp - Unit tests for String extras ----------------===//
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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 "llvm/ADT/StringExtras.h"
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#include "llvm/Support/raw_ostream.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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TEST(StringExtrasTest, Join) {
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std::vector<std::string> Items;
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EXPECT_EQ("", join(Items.begin(), Items.end(), " <sep> "));
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Items = {"foo"};
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EXPECT_EQ("foo", join(Items.begin(), Items.end(), " <sep> "));
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Items = {"foo", "bar"};
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EXPECT_EQ("foo <sep> bar", join(Items.begin(), Items.end(), " <sep> "));
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Items = {"foo", "bar", "baz"};
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EXPECT_EQ("foo <sep> bar <sep> baz",
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join(Items.begin(), Items.end(), " <sep> "));
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}
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TEST(StringExtrasTest, JoinItems) {
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const char *Foo = "foo";
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std::string Bar = "bar";
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llvm::StringRef Baz = "baz";
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char X = 'x';
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EXPECT_EQ("", join_items(" <sep> "));
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EXPECT_EQ("", join_items('/'));
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EXPECT_EQ("foo", join_items(" <sep> ", Foo));
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EXPECT_EQ("foo", join_items('/', Foo));
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EXPECT_EQ("foo <sep> bar", join_items(" <sep> ", Foo, Bar));
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EXPECT_EQ("foo/bar", join_items('/', Foo, Bar));
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EXPECT_EQ("foo <sep> bar <sep> baz", join_items(" <sep> ", Foo, Bar, Baz));
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EXPECT_EQ("foo/bar/baz", join_items('/', Foo, Bar, Baz));
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EXPECT_EQ("foo <sep> bar <sep> baz <sep> x",
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join_items(" <sep> ", Foo, Bar, Baz, X));
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EXPECT_EQ("foo/bar/baz/x", join_items('/', Foo, Bar, Baz, X));
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}
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TEST(StringExtrasTest, ToAndFromHex) {
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std::vector<uint8_t> OddBytes = {0x5, 0xBD, 0x0D, 0x3E, 0xCD};
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std::string OddStr = "05BD0D3ECD";
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StringRef OddData(reinterpret_cast<const char *>(OddBytes.data()),
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OddBytes.size());
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EXPECT_EQ(OddStr, toHex(OddData));
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EXPECT_EQ(OddData, fromHex(StringRef(OddStr).drop_front()));
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std::vector<uint8_t> EvenBytes = {0xA5, 0xBD, 0x0D, 0x3E, 0xCD};
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std::string EvenStr = "A5BD0D3ECD";
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StringRef EvenData(reinterpret_cast<const char *>(EvenBytes.data()),
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EvenBytes.size());
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EXPECT_EQ(EvenStr, toHex(EvenData));
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EXPECT_EQ(EvenData, fromHex(EvenStr));
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}
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TEST(StringExtrasTest, to_float) {
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float F;
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EXPECT_TRUE(to_float("4.7", F));
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EXPECT_FLOAT_EQ(4.7f, F);
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double D;
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EXPECT_TRUE(to_float("4.7", D));
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EXPECT_DOUBLE_EQ(4.7, D);
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long double LD;
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EXPECT_TRUE(to_float("4.7", LD));
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EXPECT_DOUBLE_EQ(4.7, LD);
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EXPECT_FALSE(to_float("foo", F));
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EXPECT_FALSE(to_float("7.4 foo", F));
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EXPECT_FLOAT_EQ(4.7f, F); // F should be unchanged
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}
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TEST(StringExtrasTest, printLowerCase) {
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std::string str;
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raw_string_ostream OS(str);
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printLowerCase("ABCdefg01234.,&!~`'}\"", OS);
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EXPECT_EQ("abcdefg01234.,&!~`'}\"", OS.str());
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}
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