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