94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
//===- unittests/Support/UnicodeTest.cpp - Unicode.h tests ----------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/Unicode.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
namespace llvm {
|
|
namespace sys {
|
|
namespace unicode {
|
|
namespace {
|
|
|
|
TEST(Unicode, columnWidthUTF8) {
|
|
EXPECT_EQ(0, columnWidthUTF8(""));
|
|
EXPECT_EQ(1, columnWidthUTF8(" "));
|
|
EXPECT_EQ(1, columnWidthUTF8("a"));
|
|
EXPECT_EQ(1, columnWidthUTF8("~"));
|
|
|
|
EXPECT_EQ(6, columnWidthUTF8("abcdef"));
|
|
|
|
EXPECT_EQ(-1, columnWidthUTF8("\x01"));
|
|
EXPECT_EQ(-1, columnWidthUTF8("aaaaaaaaaa\x01"));
|
|
EXPECT_EQ(-1, columnWidthUTF8("\342\200\213")); // 200B ZERO WIDTH SPACE
|
|
|
|
// 00AD SOFT HYPHEN is displayed on most terminals as a space or a dash. Some
|
|
// text editors display it only when a line is broken at it, some use it as a
|
|
// line-break hint, but don't display. We choose terminal-oriented
|
|
// interpretation.
|
|
EXPECT_EQ(1, columnWidthUTF8("\302\255"));
|
|
|
|
EXPECT_EQ(0, columnWidthUTF8("\314\200")); // 0300 COMBINING GRAVE ACCENT
|
|
EXPECT_EQ(1, columnWidthUTF8("\340\270\201")); // 0E01 THAI CHARACTER KO KAI
|
|
EXPECT_EQ(2, columnWidthUTF8("\344\270\200")); // CJK UNIFIED IDEOGRAPH-4E00
|
|
|
|
EXPECT_EQ(4, columnWidthUTF8("\344\270\200\344\270\200"));
|
|
EXPECT_EQ(3, columnWidthUTF8("q\344\270\200"));
|
|
EXPECT_EQ(3, columnWidthUTF8("\314\200\340\270\201\344\270\200"));
|
|
|
|
// Invalid UTF-8 strings, columnWidthUTF8 should error out.
|
|
EXPECT_EQ(-2, columnWidthUTF8("\344"));
|
|
EXPECT_EQ(-2, columnWidthUTF8("\344\270"));
|
|
EXPECT_EQ(-2, columnWidthUTF8("\344\270\033"));
|
|
EXPECT_EQ(-2, columnWidthUTF8("\344\270\300"));
|
|
EXPECT_EQ(-2, columnWidthUTF8("\377\366\355"));
|
|
|
|
EXPECT_EQ(-2, columnWidthUTF8("qwer\344"));
|
|
EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270"));
|
|
EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270\033"));
|
|
EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270\300"));
|
|
EXPECT_EQ(-2, columnWidthUTF8("qwer\377\366\355"));
|
|
|
|
// UTF-8 sequences longer than 4 bytes correspond to unallocated Unicode
|
|
// characters.
|
|
EXPECT_EQ(-2, columnWidthUTF8("\370\200\200\200\200")); // U+200000
|
|
EXPECT_EQ(-2, columnWidthUTF8("\374\200\200\200\200\200")); // U+4000000
|
|
}
|
|
|
|
TEST(Unicode, isPrintable) {
|
|
EXPECT_FALSE(isPrintable(0)); // <control-0000>-<control-001F>
|
|
EXPECT_FALSE(isPrintable(0x01));
|
|
EXPECT_FALSE(isPrintable(0x1F));
|
|
EXPECT_TRUE(isPrintable(' '));
|
|
EXPECT_TRUE(isPrintable('A'));
|
|
EXPECT_TRUE(isPrintable('~'));
|
|
EXPECT_FALSE(isPrintable(0x7F)); // <control-007F>..<control-009F>
|
|
EXPECT_FALSE(isPrintable(0x90));
|
|
EXPECT_FALSE(isPrintable(0x9F));
|
|
|
|
EXPECT_TRUE(isPrintable(0xAC));
|
|
EXPECT_TRUE(isPrintable(0xAD)); // SOFT HYPHEN is displayed on most terminals
|
|
// as either a space or a dash.
|
|
EXPECT_TRUE(isPrintable(0xAE));
|
|
|
|
EXPECT_TRUE(isPrintable(0x0377)); // GREEK SMALL LETTER PAMPHYLIAN DIGAMMA
|
|
EXPECT_FALSE(isPrintable(0x0378)); // <reserved-0378>..<reserved-0379>
|
|
|
|
EXPECT_FALSE(isPrintable(0x0600)); // ARABIC NUMBER SIGN
|
|
|
|
EXPECT_FALSE(isPrintable(0x1FFFF)); // <reserved-1F774>..<noncharacter-1FFFF>
|
|
EXPECT_TRUE(isPrintable(0x20000)); // CJK UNIFIED IDEOGRAPH-20000
|
|
|
|
EXPECT_FALSE(isPrintable(0x10FFFF)); // noncharacter
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace unicode
|
|
} // namespace sys
|
|
} // namespace llvm
|