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214 lines
7.3 KiB
C++
214 lines
7.3 KiB
C++
//===- StringExtrasTest.cpp - Unit tests for String extras ----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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, isPrint) {
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EXPECT_FALSE(isPrint('\0'));
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EXPECT_FALSE(isPrint('\t'));
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EXPECT_TRUE(isPrint('0'));
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EXPECT_TRUE(isPrint('a'));
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EXPECT_TRUE(isPrint('A'));
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EXPECT_TRUE(isPrint(' '));
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EXPECT_TRUE(isPrint('~'));
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EXPECT_TRUE(isPrint('?'));
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}
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TEST(StringExtrasTest, isSpace) {
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EXPECT_TRUE(isSpace(' '));
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EXPECT_TRUE(isSpace('\t'));
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EXPECT_TRUE(isSpace('\n'));
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EXPECT_TRUE(isSpace('\v'));
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EXPECT_TRUE(isSpace('\f'));
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EXPECT_TRUE(isSpace('\v'));
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EXPECT_FALSE(isSpace('\0'));
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EXPECT_FALSE(isSpace('_'));
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}
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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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EXPECT_EQ(StringRef(OddStr).lower(), toHex(OddData, true));
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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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EXPECT_EQ(StringRef(EvenStr).lower(), toHex(EvenData, true));
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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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TEST(StringExtrasTest, printEscapedString) {
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std::string str;
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raw_string_ostream OS(str);
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printEscapedString("ABCdef123&<>\\\"'\t", OS);
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EXPECT_EQ("ABCdef123&<>\\\\\\22'\\09", OS.str());
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}
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TEST(StringExtrasTest, printHTMLEscaped) {
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std::string str;
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raw_string_ostream OS(str);
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printHTMLEscaped("ABCdef123&<>\"'", OS);
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EXPECT_EQ("ABCdef123&<>"'", OS.str());
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}
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TEST(StringExtras, ConvertToSnakeFromCamelCase) {
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auto testConvertToSnakeCase = [](llvm::StringRef input,
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llvm::StringRef expected) {
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EXPECT_EQ(convertToSnakeFromCamelCase(input), expected.str());
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};
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testConvertToSnakeCase("OpName", "op_name");
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testConvertToSnakeCase("opName", "op_name");
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testConvertToSnakeCase("_OpName", "_op_name");
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testConvertToSnakeCase("Op_Name", "op_name");
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testConvertToSnakeCase("", "");
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testConvertToSnakeCase("A", "a");
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testConvertToSnakeCase("_", "_");
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testConvertToSnakeCase("a", "a");
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testConvertToSnakeCase("op_name", "op_name");
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testConvertToSnakeCase("_op_name", "_op_name");
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testConvertToSnakeCase("__op_name", "__op_name");
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testConvertToSnakeCase("op__name", "op__name");
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}
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TEST(StringExtras, ConvertToCamelFromSnakeCase) {
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auto testConvertToCamelCase = [](bool capitalizeFirst, llvm::StringRef input,
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llvm::StringRef expected) {
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EXPECT_EQ(convertToCamelFromSnakeCase(input, capitalizeFirst),
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expected.str());
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};
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testConvertToCamelCase(false, "op_name", "opName");
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testConvertToCamelCase(false, "_op_name", "_opName");
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testConvertToCamelCase(false, "__op_name", "_OpName");
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testConvertToCamelCase(false, "op__name", "op_Name");
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testConvertToCamelCase(false, "", "");
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testConvertToCamelCase(false, "A", "A");
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testConvertToCamelCase(false, "_", "_");
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testConvertToCamelCase(false, "a", "a");
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testConvertToCamelCase(false, "OpName", "OpName");
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testConvertToCamelCase(false, "opName", "opName");
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testConvertToCamelCase(false, "_OpName", "_OpName");
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testConvertToCamelCase(false, "Op_Name", "Op_Name");
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testConvertToCamelCase(true, "op_name", "OpName");
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testConvertToCamelCase(true, "_op_name", "_opName");
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testConvertToCamelCase(true, "__op_name", "_OpName");
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testConvertToCamelCase(true, "op__name", "Op_Name");
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testConvertToCamelCase(true, "", "");
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testConvertToCamelCase(true, "A", "A");
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testConvertToCamelCase(true, "_", "_");
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testConvertToCamelCase(true, "a", "A");
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testConvertToCamelCase(true, "OpName", "OpName");
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testConvertToCamelCase(true, "_OpName", "_OpName");
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testConvertToCamelCase(true, "Op_Name", "Op_Name");
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testConvertToCamelCase(true, "opName", "OpName");
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}
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constexpr uint64_t MaxUint64 = std::numeric_limits<uint64_t>::max();
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constexpr int64_t MaxInt64 = std::numeric_limits<int64_t>::max();
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constexpr int64_t MinInt64 = std::numeric_limits<int64_t>::min();
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TEST(StringExtras, UToStr) {
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EXPECT_EQ("0", utostr(0));
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EXPECT_EQ("0", utostr(0, /*isNeg=*/false));
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EXPECT_EQ("1", utostr(1));
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EXPECT_EQ("1", utostr(1, /*isNeg=*/false));
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EXPECT_EQ(std::to_string(MaxUint64), utostr(MaxUint64));
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EXPECT_EQ(std::to_string(MaxUint64), utostr(MaxUint64, /*isNeg=*/false));
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EXPECT_EQ("-0", utostr(0, /*isNeg=*/true));
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EXPECT_EQ("-1", utostr(1, /*isNeg=*/true));
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EXPECT_EQ("-" + std::to_string(MaxInt64), utostr(MaxInt64, /*isNeg=*/true));
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constexpr uint64_t MinusMinInt64 = -static_cast<uint64_t>(MinInt64);
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EXPECT_EQ("-" + std::to_string(MinusMinInt64),
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utostr(MinusMinInt64, /*isNeg=*/true));
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EXPECT_EQ("-" + std::to_string(MaxUint64), utostr(MaxUint64, /*isNeg=*/true));
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}
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TEST(StringExtras, IToStr) {
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EXPECT_EQ("0", itostr(0));
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EXPECT_EQ("1", itostr(1));
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EXPECT_EQ("-1", itostr(-1));
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EXPECT_EQ(std::to_string(MinInt64), itostr(MinInt64));
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EXPECT_EQ(std::to_string(MaxInt64), itostr(MaxInt64));
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}
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