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//===- StringExtrasTest.cpp - Unit tests for String extras ----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace llvm;
TEST(StringExtrasTest, isPrint) {
EXPECT_FALSE(isPrint('\0'));
EXPECT_FALSE(isPrint('\t'));
EXPECT_TRUE(isPrint('0'));
EXPECT_TRUE(isPrint('a'));
EXPECT_TRUE(isPrint('A'));
EXPECT_TRUE(isPrint(' '));
EXPECT_TRUE(isPrint('~'));
EXPECT_TRUE(isPrint('?'));
}
TEST(StringExtrasTest, Join) {
std::vector<std::string> Items;
EXPECT_EQ("", join(Items.begin(), Items.end(), " <sep> "));
Items = {"foo"};
EXPECT_EQ("foo", join(Items.begin(), Items.end(), " <sep> "));
Items = {"foo", "bar"};
EXPECT_EQ("foo <sep> bar", join(Items.begin(), Items.end(), " <sep> "));
Items = {"foo", "bar", "baz"};
EXPECT_EQ("foo <sep> bar <sep> baz",
join(Items.begin(), Items.end(), " <sep> "));
}
TEST(StringExtrasTest, JoinItems) {
const char *Foo = "foo";
std::string Bar = "bar";
llvm::StringRef Baz = "baz";
char X = 'x';
EXPECT_EQ("", join_items(" <sep> "));
EXPECT_EQ("", join_items('/'));
EXPECT_EQ("foo", join_items(" <sep> ", Foo));
EXPECT_EQ("foo", join_items('/', Foo));
EXPECT_EQ("foo <sep> bar", join_items(" <sep> ", Foo, Bar));
EXPECT_EQ("foo/bar", join_items('/', Foo, Bar));
EXPECT_EQ("foo <sep> bar <sep> baz", join_items(" <sep> ", Foo, Bar, Baz));
EXPECT_EQ("foo/bar/baz", join_items('/', Foo, Bar, Baz));
EXPECT_EQ("foo <sep> bar <sep> baz <sep> x",
join_items(" <sep> ", Foo, Bar, Baz, X));
EXPECT_EQ("foo/bar/baz/x", join_items('/', Foo, Bar, Baz, X));
}
TEST(StringExtrasTest, ToAndFromHex) {
std::vector<uint8_t> OddBytes = {0x5, 0xBD, 0x0D, 0x3E, 0xCD};
std::string OddStr = "05BD0D3ECD";
StringRef OddData(reinterpret_cast<const char *>(OddBytes.data()),
OddBytes.size());
EXPECT_EQ(OddStr, toHex(OddData));
EXPECT_EQ(OddData, fromHex(StringRef(OddStr).drop_front()));
EXPECT_EQ(StringRef(OddStr).lower(), toHex(OddData, true));
std::vector<uint8_t> EvenBytes = {0xA5, 0xBD, 0x0D, 0x3E, 0xCD};
std::string EvenStr = "A5BD0D3ECD";
StringRef EvenData(reinterpret_cast<const char *>(EvenBytes.data()),
EvenBytes.size());
EXPECT_EQ(EvenStr, toHex(EvenData));
EXPECT_EQ(EvenData, fromHex(EvenStr));
EXPECT_EQ(StringRef(EvenStr).lower(), toHex(EvenData, true));
}
TEST(StringExtrasTest, to_float) {
float F;
EXPECT_TRUE(to_float("4.7", F));
EXPECT_FLOAT_EQ(4.7f, F);
double D;
EXPECT_TRUE(to_float("4.7", D));
EXPECT_DOUBLE_EQ(4.7, D);
long double LD;
EXPECT_TRUE(to_float("4.7", LD));
EXPECT_DOUBLE_EQ(4.7, LD);
EXPECT_FALSE(to_float("foo", F));
EXPECT_FALSE(to_float("7.4 foo", F));
EXPECT_FLOAT_EQ(4.7f, F); // F should be unchanged
}
TEST(StringExtrasTest, printLowerCase) {
std::string str;
raw_string_ostream OS(str);
printLowerCase("ABCdefg01234.,&!~`'}\"", OS);
EXPECT_EQ("abcdefg01234.,&!~`'}\"", OS.str());
}
TEST(StringExtrasTest, printEscapedString) {
std::string str;
raw_string_ostream OS(str);
printEscapedString("ABCdef123&<>\\\"'\t", OS);
EXPECT_EQ("ABCdef123&<>\\5C\\22'\\09", OS.str());
}
TEST(StringExtrasTest, printHTMLEscaped) {
std::string str;
raw_string_ostream OS(str);
printHTMLEscaped("ABCdef123&<>\"'", OS);
EXPECT_EQ("ABCdef123&<>"'", OS.str());
}
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