1 //===- unittests/Support/UnicodeTest.cpp - Unicode.h tests ----------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "llvm/Support/Unicode.h" 11 #include "gtest/gtest.h" 12 13 namespace llvm { 14 namespace sys { 15 namespace unicode { 16 namespace { 17 18 TEST(Unicode, columnWidthUTF8) { 19 EXPECT_EQ(0, columnWidthUTF8("")); 20 EXPECT_EQ(1, columnWidthUTF8(" ")); 21 EXPECT_EQ(1, columnWidthUTF8("a")); 22 EXPECT_EQ(1, columnWidthUTF8("~")); 23 24 EXPECT_EQ(6, columnWidthUTF8("abcdef")); 25 26 EXPECT_EQ(-1, columnWidthUTF8("\x01")); 27 EXPECT_EQ(-1, columnWidthUTF8("aaaaaaaaaa\x01")); 28 EXPECT_EQ(-1, columnWidthUTF8("\342\200\213")); // 200B ZERO WIDTH SPACE 29 30 // 00AD SOFT HYPHEN is displayed on most terminals as a space or a dash. Some 31 // text editors display it only when a line is broken at it, some use it as a 32 // line-break hint, but don't display. We choose terminal-oriented 33 // interpretation. 34 EXPECT_EQ(1, columnWidthUTF8("\302\255")); 35 36 EXPECT_EQ(0, columnWidthUTF8("\314\200")); // 0300 COMBINING GRAVE ACCENT 37 EXPECT_EQ(1, columnWidthUTF8("\340\270\201")); // 0E01 THAI CHARACTER KO KAI 38 EXPECT_EQ(2, columnWidthUTF8("\344\270\200")); // CJK UNIFIED IDEOGRAPH-4E00 39 40 EXPECT_EQ(4, columnWidthUTF8("\344\270\200\344\270\200")); 41 EXPECT_EQ(3, columnWidthUTF8("q\344\270\200")); 42 EXPECT_EQ(3, columnWidthUTF8("\314\200\340\270\201\344\270\200")); 43 44 // Invalid UTF-8 strings, columnWidthUTF8 should error out. 45 EXPECT_EQ(-2, columnWidthUTF8("\344")); 46 EXPECT_EQ(-2, columnWidthUTF8("\344\270")); 47 EXPECT_EQ(-2, columnWidthUTF8("\344\270\033")); 48 EXPECT_EQ(-2, columnWidthUTF8("\344\270\300")); 49 EXPECT_EQ(-2, columnWidthUTF8("\377\366\355")); 50 51 EXPECT_EQ(-2, columnWidthUTF8("qwer\344")); 52 EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270")); 53 EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270\033")); 54 EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270\300")); 55 EXPECT_EQ(-2, columnWidthUTF8("qwer\377\366\355")); 56 57 // UTF-8 sequences longer than 4 bytes correspond to unallocated Unicode 58 // characters. 59 EXPECT_EQ(-2, columnWidthUTF8("\370\200\200\200\200")); // U+200000 60 EXPECT_EQ(-2, columnWidthUTF8("\374\200\200\200\200\200")); // U+4000000 61 } 62 63 TEST(Unicode, isPrintable) { 64 EXPECT_FALSE(isPrintable(0)); // <control-0000>-<control-001F> 65 EXPECT_FALSE(isPrintable(0x01)); 66 EXPECT_FALSE(isPrintable(0x1F)); 67 EXPECT_TRUE(isPrintable(' ')); 68 EXPECT_TRUE(isPrintable('A')); 69 EXPECT_TRUE(isPrintable('~')); 70 EXPECT_FALSE(isPrintable(0x7F)); // <control-007F>..<control-009F> 71 EXPECT_FALSE(isPrintable(0x90)); 72 EXPECT_FALSE(isPrintable(0x9F)); 73 74 EXPECT_TRUE(isPrintable(0xAC)); 75 EXPECT_TRUE(isPrintable(0xAD)); // SOFT HYPHEN is displayed on most terminals 76 // as either a space or a dash. 77 EXPECT_TRUE(isPrintable(0xAE)); 78 79 EXPECT_TRUE(isPrintable(0x0377)); // GREEK SMALL LETTER PAMPHYLIAN DIGAMMA 80 EXPECT_FALSE(isPrintable(0x0378)); // <reserved-0378>..<reserved-0379> 81 82 EXPECT_FALSE(isPrintable(0x0600)); // ARABIC NUMBER SIGN 83 84 EXPECT_FALSE(isPrintable(0x1FFFF)); // <reserved-1F774>..<noncharacter-1FFFF> 85 EXPECT_TRUE(isPrintable(0x20000)); // CJK UNIFIED IDEOGRAPH-20000 86 87 EXPECT_FALSE(isPrintable(0x10FFFF)); // noncharacter 88 } 89 90 } // namespace 91 } // namespace unicode 92 } // namespace sys 93 } // namespace llvm 94
