llvm-project/clang/unittests/Basic/CharInfoTest.cpp

500 lines
14 KiB
C++

//===- unittests/Basic/CharInfoTest.cpp -- ASCII classification tests -----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Basic/CharInfo.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace clang;
// Check that the CharInfo table has been constructed reasonably.
TEST(CharInfoTest, validateInfoTable) {
using namespace charinfo;
EXPECT_EQ((unsigned)CHAR_SPACE, InfoTable[(unsigned)' ']);
EXPECT_EQ((unsigned)CHAR_HORZ_WS, InfoTable[(unsigned)'\t']);
EXPECT_EQ((unsigned)CHAR_HORZ_WS, InfoTable[(unsigned)'\f']); // ??
EXPECT_EQ((unsigned)CHAR_HORZ_WS, InfoTable[(unsigned)'\v']); // ??
EXPECT_EQ((unsigned)CHAR_VERT_WS, InfoTable[(unsigned)'\n']);
EXPECT_EQ((unsigned)CHAR_VERT_WS, InfoTable[(unsigned)'\r']);
EXPECT_EQ((unsigned)CHAR_UNDER, InfoTable[(unsigned)'_']);
EXPECT_EQ((unsigned)CHAR_PERIOD, InfoTable[(unsigned)'.']);
for (unsigned i = 'a'; i <= 'f'; ++i) {
EXPECT_EQ((unsigned)CHAR_XLOWER, InfoTable[i]);
EXPECT_EQ((unsigned)CHAR_XUPPER, InfoTable[i+'A'-'a']);
}
for (unsigned i = 'g'; i <= 'z'; ++i) {
EXPECT_EQ((unsigned)CHAR_LOWER, InfoTable[i]);
EXPECT_EQ((unsigned)CHAR_UPPER, InfoTable[i+'A'-'a']);
}
for (unsigned i = '0'; i <= '9'; ++i)
EXPECT_EQ((unsigned)CHAR_DIGIT, InfoTable[i]);
}
// Check various predicates.
TEST(CharInfoTest, isASCII) {
EXPECT_TRUE(isASCII('\0'));
EXPECT_TRUE(isASCII('\n'));
EXPECT_TRUE(isASCII(' '));
EXPECT_TRUE(isASCII('a'));
EXPECT_TRUE(isASCII('\x7f'));
EXPECT_FALSE(isASCII('\x80'));
EXPECT_FALSE(isASCII('\xc2'));
EXPECT_FALSE(isASCII('\xff'));
}
TEST(CharInfoTest, isIdentifierHead) {
EXPECT_TRUE(isIdentifierHead('a'));
EXPECT_TRUE(isIdentifierHead('A'));
EXPECT_TRUE(isIdentifierHead('z'));
EXPECT_TRUE(isIdentifierHead('Z'));
EXPECT_TRUE(isIdentifierHead('_'));
EXPECT_FALSE(isIdentifierHead('0'));
EXPECT_FALSE(isIdentifierHead('.'));
EXPECT_FALSE(isIdentifierHead('`'));
EXPECT_FALSE(isIdentifierHead('\0'));
EXPECT_FALSE(isIdentifierHead('$'));
EXPECT_TRUE(isIdentifierHead('$', /*AllowDollar=*/true));
EXPECT_FALSE(isIdentifierHead('\x80'));
EXPECT_FALSE(isIdentifierHead('\xc2'));
EXPECT_FALSE(isIdentifierHead('\xff'));
}
TEST(CharInfoTest, isIdentifierBody) {
EXPECT_TRUE(isIdentifierBody('a'));
EXPECT_TRUE(isIdentifierBody('A'));
EXPECT_TRUE(isIdentifierBody('z'));
EXPECT_TRUE(isIdentifierBody('Z'));
EXPECT_TRUE(isIdentifierBody('_'));
EXPECT_TRUE(isIdentifierBody('0'));
EXPECT_FALSE(isIdentifierBody('.'));
EXPECT_FALSE(isIdentifierBody('`'));
EXPECT_FALSE(isIdentifierBody('\0'));
EXPECT_FALSE(isIdentifierBody('$'));
EXPECT_TRUE(isIdentifierBody('$', /*AllowDollar=*/true));
EXPECT_FALSE(isIdentifierBody('\x80'));
EXPECT_FALSE(isIdentifierBody('\xc2'));
EXPECT_FALSE(isIdentifierBody('\xff'));
}
TEST(CharInfoTest, isHorizontalWhitespace) {
EXPECT_FALSE(isHorizontalWhitespace('a'));
EXPECT_FALSE(isHorizontalWhitespace('_'));
EXPECT_FALSE(isHorizontalWhitespace('0'));
EXPECT_FALSE(isHorizontalWhitespace('.'));
EXPECT_FALSE(isHorizontalWhitespace('`'));
EXPECT_FALSE(isHorizontalWhitespace('\0'));
EXPECT_FALSE(isHorizontalWhitespace('\x7f'));
EXPECT_TRUE(isHorizontalWhitespace(' '));
EXPECT_TRUE(isHorizontalWhitespace('\t'));
EXPECT_TRUE(isHorizontalWhitespace('\f')); // ??
EXPECT_TRUE(isHorizontalWhitespace('\v')); // ??
EXPECT_FALSE(isHorizontalWhitespace('\n'));
EXPECT_FALSE(isHorizontalWhitespace('\r'));
EXPECT_FALSE(isHorizontalWhitespace('\x80'));
EXPECT_FALSE(isHorizontalWhitespace('\xc2'));
EXPECT_FALSE(isHorizontalWhitespace('\xff'));
}
TEST(CharInfoTest, isVerticalWhitespace) {
EXPECT_FALSE(isVerticalWhitespace('a'));
EXPECT_FALSE(isVerticalWhitespace('_'));
EXPECT_FALSE(isVerticalWhitespace('0'));
EXPECT_FALSE(isVerticalWhitespace('.'));
EXPECT_FALSE(isVerticalWhitespace('`'));
EXPECT_FALSE(isVerticalWhitespace('\0'));
EXPECT_FALSE(isVerticalWhitespace('\x7f'));
EXPECT_FALSE(isVerticalWhitespace(' '));
EXPECT_FALSE(isVerticalWhitespace('\t'));
EXPECT_FALSE(isVerticalWhitespace('\f')); // ??
EXPECT_FALSE(isVerticalWhitespace('\v')); // ??
EXPECT_TRUE(isVerticalWhitespace('\n'));
EXPECT_TRUE(isVerticalWhitespace('\r'));
EXPECT_FALSE(isVerticalWhitespace('\x80'));
EXPECT_FALSE(isVerticalWhitespace('\xc2'));
EXPECT_FALSE(isVerticalWhitespace('\xff'));
}
TEST(CharInfoTest, isWhitespace) {
EXPECT_FALSE(isWhitespace('a'));
EXPECT_FALSE(isWhitespace('_'));
EXPECT_FALSE(isWhitespace('0'));
EXPECT_FALSE(isWhitespace('.'));
EXPECT_FALSE(isWhitespace('`'));
EXPECT_FALSE(isWhitespace('\0'));
EXPECT_FALSE(isWhitespace('\x7f'));
EXPECT_TRUE(isWhitespace(' '));
EXPECT_TRUE(isWhitespace('\t'));
EXPECT_TRUE(isWhitespace('\f'));
EXPECT_TRUE(isWhitespace('\v'));
EXPECT_TRUE(isWhitespace('\n'));
EXPECT_TRUE(isWhitespace('\r'));
EXPECT_FALSE(isWhitespace('\x80'));
EXPECT_FALSE(isWhitespace('\xc2'));
EXPECT_FALSE(isWhitespace('\xff'));
}
TEST(CharInfoTest, isDigit) {
EXPECT_TRUE(isDigit('0'));
EXPECT_TRUE(isDigit('9'));
EXPECT_FALSE(isDigit('a'));
EXPECT_FALSE(isDigit('A'));
EXPECT_FALSE(isDigit('z'));
EXPECT_FALSE(isDigit('Z'));
EXPECT_FALSE(isDigit('.'));
EXPECT_FALSE(isDigit('_'));
EXPECT_FALSE(isDigit('/'));
EXPECT_FALSE(isDigit('\0'));
EXPECT_FALSE(isDigit('\x80'));
EXPECT_FALSE(isDigit('\xc2'));
EXPECT_FALSE(isDigit('\xff'));
}
TEST(CharInfoTest, isHexDigit) {
EXPECT_TRUE(isHexDigit('0'));
EXPECT_TRUE(isHexDigit('9'));
EXPECT_TRUE(isHexDigit('a'));
EXPECT_TRUE(isHexDigit('A'));
EXPECT_FALSE(isHexDigit('z'));
EXPECT_FALSE(isHexDigit('Z'));
EXPECT_FALSE(isHexDigit('.'));
EXPECT_FALSE(isHexDigit('_'));
EXPECT_FALSE(isHexDigit('/'));
EXPECT_FALSE(isHexDigit('\0'));
EXPECT_FALSE(isHexDigit('\x80'));
EXPECT_FALSE(isHexDigit('\xc2'));
EXPECT_FALSE(isHexDigit('\xff'));
}
TEST(CharInfoTest, isLetter) {
EXPECT_FALSE(isLetter('0'));
EXPECT_FALSE(isLetter('9'));
EXPECT_TRUE(isLetter('a'));
EXPECT_TRUE(isLetter('A'));
EXPECT_TRUE(isLetter('z'));
EXPECT_TRUE(isLetter('Z'));
EXPECT_FALSE(isLetter('.'));
EXPECT_FALSE(isLetter('_'));
EXPECT_FALSE(isLetter('/'));
EXPECT_FALSE(isLetter('('));
EXPECT_FALSE(isLetter('\0'));
EXPECT_FALSE(isLetter('\x80'));
EXPECT_FALSE(isLetter('\xc2'));
EXPECT_FALSE(isLetter('\xff'));
}
TEST(CharInfoTest, isLowercase) {
EXPECT_FALSE(isLowercase('0'));
EXPECT_FALSE(isLowercase('9'));
EXPECT_TRUE(isLowercase('a'));
EXPECT_FALSE(isLowercase('A'));
EXPECT_TRUE(isLowercase('z'));
EXPECT_FALSE(isLowercase('Z'));
EXPECT_FALSE(isLowercase('.'));
EXPECT_FALSE(isLowercase('_'));
EXPECT_FALSE(isLowercase('/'));
EXPECT_FALSE(isLowercase('('));
EXPECT_FALSE(isLowercase('\0'));
EXPECT_FALSE(isLowercase('\x80'));
EXPECT_FALSE(isLowercase('\xc2'));
EXPECT_FALSE(isLowercase('\xff'));
}
TEST(CharInfoTest, isUppercase) {
EXPECT_FALSE(isUppercase('0'));
EXPECT_FALSE(isUppercase('9'));
EXPECT_FALSE(isUppercase('a'));
EXPECT_TRUE(isUppercase('A'));
EXPECT_FALSE(isUppercase('z'));
EXPECT_TRUE(isUppercase('Z'));
EXPECT_FALSE(isUppercase('.'));
EXPECT_FALSE(isUppercase('_'));
EXPECT_FALSE(isUppercase('/'));
EXPECT_FALSE(isUppercase('('));
EXPECT_FALSE(isUppercase('\0'));
EXPECT_FALSE(isUppercase('\x80'));
EXPECT_FALSE(isUppercase('\xc2'));
EXPECT_FALSE(isUppercase('\xff'));
}
TEST(CharInfoTest, isAlphanumeric) {
EXPECT_TRUE(isAlphanumeric('0'));
EXPECT_TRUE(isAlphanumeric('9'));
EXPECT_TRUE(isAlphanumeric('a'));
EXPECT_TRUE(isAlphanumeric('A'));
EXPECT_TRUE(isAlphanumeric('z'));
EXPECT_TRUE(isAlphanumeric('Z'));
EXPECT_FALSE(isAlphanumeric('.'));
EXPECT_FALSE(isAlphanumeric('_'));
EXPECT_FALSE(isAlphanumeric('/'));
EXPECT_FALSE(isAlphanumeric('('));
EXPECT_FALSE(isAlphanumeric('\0'));
EXPECT_FALSE(isAlphanumeric('\x80'));
EXPECT_FALSE(isAlphanumeric('\xc2'));
EXPECT_FALSE(isAlphanumeric('\xff'));
}
TEST(CharInfoTest, isPunctuation) {
EXPECT_FALSE(isPunctuation('0'));
EXPECT_FALSE(isPunctuation('9'));
EXPECT_FALSE(isPunctuation('a'));
EXPECT_FALSE(isPunctuation('A'));
EXPECT_FALSE(isPunctuation('z'));
EXPECT_FALSE(isPunctuation('Z'));
EXPECT_TRUE(isPunctuation('.'));
EXPECT_TRUE(isPunctuation('_'));
EXPECT_TRUE(isPunctuation('/'));
EXPECT_TRUE(isPunctuation('('));
EXPECT_FALSE(isPunctuation(' '));
EXPECT_FALSE(isPunctuation('\n'));
EXPECT_FALSE(isPunctuation('\0'));
EXPECT_FALSE(isPunctuation('\x80'));
EXPECT_FALSE(isPunctuation('\xc2'));
EXPECT_FALSE(isPunctuation('\xff'));
}
TEST(CharInfoTest, isPrintable) {
EXPECT_TRUE(isPrintable('0'));
EXPECT_TRUE(isPrintable('9'));
EXPECT_TRUE(isPrintable('a'));
EXPECT_TRUE(isPrintable('A'));
EXPECT_TRUE(isPrintable('z'));
EXPECT_TRUE(isPrintable('Z'));
EXPECT_TRUE(isPrintable('.'));
EXPECT_TRUE(isPrintable('_'));
EXPECT_TRUE(isPrintable('/'));
EXPECT_TRUE(isPrintable('('));
EXPECT_TRUE(isPrintable(' '));
EXPECT_FALSE(isPrintable('\t'));
EXPECT_FALSE(isPrintable('\n'));
EXPECT_FALSE(isPrintable('\0'));
EXPECT_FALSE(isPrintable('\x80'));
EXPECT_FALSE(isPrintable('\xc2'));
EXPECT_FALSE(isPrintable('\xff'));
}
TEST(CharInfoTest, isPreprocessingNumberBody) {
EXPECT_TRUE(isPreprocessingNumberBody('0'));
EXPECT_TRUE(isPreprocessingNumberBody('9'));
EXPECT_TRUE(isPreprocessingNumberBody('a'));
EXPECT_TRUE(isPreprocessingNumberBody('A'));
EXPECT_TRUE(isPreprocessingNumberBody('z'));
EXPECT_TRUE(isPreprocessingNumberBody('Z'));
EXPECT_TRUE(isPreprocessingNumberBody('.'));
EXPECT_TRUE(isPreprocessingNumberBody('_'));
EXPECT_FALSE(isPreprocessingNumberBody('/'));
EXPECT_FALSE(isPreprocessingNumberBody('('));
EXPECT_FALSE(isPreprocessingNumberBody('\0'));
EXPECT_FALSE(isPreprocessingNumberBody('\x80'));
EXPECT_FALSE(isPreprocessingNumberBody('\xc2'));
EXPECT_FALSE(isPreprocessingNumberBody('\xff'));
}
TEST(CharInfoTest, isRawStringDelimBody) {
EXPECT_TRUE(isRawStringDelimBody('0'));
EXPECT_TRUE(isRawStringDelimBody('9'));
EXPECT_TRUE(isRawStringDelimBody('a'));
EXPECT_TRUE(isRawStringDelimBody('A'));
EXPECT_TRUE(isRawStringDelimBody('z'));
EXPECT_TRUE(isRawStringDelimBody('Z'));
EXPECT_TRUE(isRawStringDelimBody('.'));
EXPECT_TRUE(isRawStringDelimBody('_'));
EXPECT_TRUE(isRawStringDelimBody('/'));
EXPECT_FALSE(isRawStringDelimBody('('));
EXPECT_FALSE(isRawStringDelimBody('\0'));
EXPECT_FALSE(isRawStringDelimBody('\x80'));
EXPECT_FALSE(isRawStringDelimBody('\xc2'));
EXPECT_FALSE(isRawStringDelimBody('\xff'));
}
TEST(CharInfoTest, toLowercase) {
EXPECT_EQ('0', toLowercase('0'));
EXPECT_EQ('9', toLowercase('9'));
EXPECT_EQ('a', toLowercase('a'));
EXPECT_EQ('a', toLowercase('A'));
EXPECT_EQ('z', toLowercase('z'));
EXPECT_EQ('z', toLowercase('Z'));
EXPECT_EQ('.', toLowercase('.'));
EXPECT_EQ('_', toLowercase('_'));
EXPECT_EQ('/', toLowercase('/'));
EXPECT_EQ('\0', toLowercase('\0'));
}
TEST(CharInfoTest, toUppercase) {
EXPECT_EQ('0', toUppercase('0'));
EXPECT_EQ('9', toUppercase('9'));
EXPECT_EQ('A', toUppercase('a'));
EXPECT_EQ('A', toUppercase('A'));
EXPECT_EQ('Z', toUppercase('z'));
EXPECT_EQ('Z', toUppercase('Z'));
EXPECT_EQ('.', toUppercase('.'));
EXPECT_EQ('_', toUppercase('_'));
EXPECT_EQ('/', toUppercase('/'));
EXPECT_EQ('\0', toUppercase('\0'));
}
TEST(CharInfoTest, isValidIdentifier) {
EXPECT_FALSE(isValidIdentifier(""));
// 1 character
EXPECT_FALSE(isValidIdentifier("."));
EXPECT_FALSE(isValidIdentifier("\n"));
EXPECT_FALSE(isValidIdentifier(" "));
EXPECT_FALSE(isValidIdentifier("\x80"));
EXPECT_FALSE(isValidIdentifier("\xc2"));
EXPECT_FALSE(isValidIdentifier("\xff"));
EXPECT_FALSE(isValidIdentifier("$"));
EXPECT_FALSE(isValidIdentifier("1"));
EXPECT_TRUE(isValidIdentifier("_"));
EXPECT_TRUE(isValidIdentifier("a"));
EXPECT_TRUE(isValidIdentifier("z"));
EXPECT_TRUE(isValidIdentifier("A"));
EXPECT_TRUE(isValidIdentifier("Z"));
// 2 characters, '_' suffix
EXPECT_FALSE(isValidIdentifier("._"));
EXPECT_FALSE(isValidIdentifier("\n_"));
EXPECT_FALSE(isValidIdentifier(" _"));
EXPECT_FALSE(isValidIdentifier("\x80_"));
EXPECT_FALSE(isValidIdentifier("\xc2_"));
EXPECT_FALSE(isValidIdentifier("\xff_"));
EXPECT_FALSE(isValidIdentifier("$_"));
EXPECT_FALSE(isValidIdentifier("1_"));
EXPECT_TRUE(isValidIdentifier("__"));
EXPECT_TRUE(isValidIdentifier("a_"));
EXPECT_TRUE(isValidIdentifier("z_"));
EXPECT_TRUE(isValidIdentifier("A_"));
EXPECT_TRUE(isValidIdentifier("Z_"));
// 2 characters, '_' prefix
EXPECT_FALSE(isValidIdentifier("_."));
EXPECT_FALSE(isValidIdentifier("_\n"));
EXPECT_FALSE(isValidIdentifier("_ "));
EXPECT_FALSE(isValidIdentifier("_\x80"));
EXPECT_FALSE(isValidIdentifier("_\xc2"));
EXPECT_FALSE(isValidIdentifier("_\xff"));
EXPECT_FALSE(isValidIdentifier("_$"));
EXPECT_TRUE(isValidIdentifier("_1"));
EXPECT_TRUE(isValidIdentifier("__"));
EXPECT_TRUE(isValidIdentifier("_a"));
EXPECT_TRUE(isValidIdentifier("_z"));
EXPECT_TRUE(isValidIdentifier("_A"));
EXPECT_TRUE(isValidIdentifier("_Z"));
// 3 characters, '__' prefix
EXPECT_FALSE(isValidIdentifier("__."));
EXPECT_FALSE(isValidIdentifier("__\n"));
EXPECT_FALSE(isValidIdentifier("__ "));
EXPECT_FALSE(isValidIdentifier("__\x80"));
EXPECT_FALSE(isValidIdentifier("__\xc2"));
EXPECT_FALSE(isValidIdentifier("__\xff"));
EXPECT_FALSE(isValidIdentifier("__$"));
EXPECT_TRUE(isValidIdentifier("__1"));
EXPECT_TRUE(isValidIdentifier("___"));
EXPECT_TRUE(isValidIdentifier("__a"));
EXPECT_TRUE(isValidIdentifier("__z"));
EXPECT_TRUE(isValidIdentifier("__A"));
EXPECT_TRUE(isValidIdentifier("__Z"));
// 3 characters, '_' prefix and suffix
EXPECT_FALSE(isValidIdentifier("_._"));
EXPECT_FALSE(isValidIdentifier("_\n_"));
EXPECT_FALSE(isValidIdentifier("_ _"));
EXPECT_FALSE(isValidIdentifier("_\x80_"));
EXPECT_FALSE(isValidIdentifier("_\xc2_"));
EXPECT_FALSE(isValidIdentifier("_\xff_"));
EXPECT_FALSE(isValidIdentifier("_$_"));
EXPECT_TRUE(isValidIdentifier("_1_"));
EXPECT_TRUE(isValidIdentifier("___"));
EXPECT_TRUE(isValidIdentifier("_a_"));
EXPECT_TRUE(isValidIdentifier("_z_"));
EXPECT_TRUE(isValidIdentifier("_A_"));
EXPECT_TRUE(isValidIdentifier("_Z_"));
}