1 //===- unittests/Support/LocaleTest.cpp - Locale.h tests ------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/Support/Locale.h"
11 #include "gtest/gtest.h"
18 // FIXME: WIN32 implementation is incorrect. We should consider using the one
19 // from LocaleGeneric.inc for WIN32.
21 TEST(Locale, columnWidth) {
22 // FIXME: This test fails with MacOSX implementation of columnWidth.
24 EXPECT_EQ(0, columnWidth(""));
25 EXPECT_EQ(1, columnWidth(" "));
26 EXPECT_EQ(1, columnWidth("a"));
27 EXPECT_EQ(1, columnWidth("~"));
29 EXPECT_EQ(6, columnWidth("abcdef"));
31 EXPECT_EQ(-1, columnWidth("\x01"));
32 EXPECT_EQ(-1, columnWidth("aaaaaaaaaa\x01"));
33 EXPECT_EQ(-1, columnWidth("\342\200\213")); // 200B ZERO WIDTH SPACE
35 // 00AD SOFT HYPHEN is displayed on most terminals as a space or a dash. Some
36 // text editors display it only when a line is broken at it, some use it as a
37 // line-break hint, but don't display. We choose terminal-oriented
39 EXPECT_EQ(1, columnWidth("\302\255"));
41 EXPECT_EQ(0, columnWidth("\314\200")); // 0300 COMBINING GRAVE ACCENT
42 EXPECT_EQ(1, columnWidth("\340\270\201")); // 0E01 THAI CHARACTER KO KAI
43 EXPECT_EQ(2, columnWidth("\344\270\200")); // CJK UNIFIED IDEOGRAPH-4E00
45 EXPECT_EQ(4, columnWidth("\344\270\200\344\270\200"));
46 EXPECT_EQ(3, columnWidth("q\344\270\200"));
47 EXPECT_EQ(3, columnWidth("\314\200\340\270\201\344\270\200"));
49 // Invalid UTF-8 strings, columnWidth should error out.
50 EXPECT_EQ(-2, columnWidth("\344"));
51 EXPECT_EQ(-2, columnWidth("\344\270"));
52 EXPECT_EQ(-2, columnWidth("\344\270\033"));
53 EXPECT_EQ(-2, columnWidth("\344\270\300"));
54 EXPECT_EQ(-2, columnWidth("\377\366\355"));
56 EXPECT_EQ(-2, columnWidth("qwer\344"));
57 EXPECT_EQ(-2, columnWidth("qwer\344\270"));
58 EXPECT_EQ(-2, columnWidth("qwer\344\270\033"));
59 EXPECT_EQ(-2, columnWidth("qwer\344\270\300"));
60 EXPECT_EQ(-2, columnWidth("qwer\377\366\355"));
62 // UTF-8 sequences longer than 4 bytes correspond to unallocated Unicode
64 EXPECT_EQ(-2, columnWidth("\370\200\200\200\200")); // U+200000
65 EXPECT_EQ(-2, columnWidth("\374\200\200\200\200\200")); // U+4000000
69 TEST(Locale, isPrint) {
70 EXPECT_FALSE(isPrint(0)); // <control-0000>-<control-001F>
71 EXPECT_FALSE(isPrint(0x01));
72 EXPECT_FALSE(isPrint(0x1F));
73 EXPECT_TRUE(isPrint(' '));
74 EXPECT_TRUE(isPrint('A'));
75 EXPECT_TRUE(isPrint('~'));
76 EXPECT_FALSE(isPrint(0x7F)); // <control-007F>..<control-009F>
77 EXPECT_FALSE(isPrint(0x90));
78 EXPECT_FALSE(isPrint(0x9F));
80 EXPECT_TRUE(isPrint(0xAC));
81 EXPECT_TRUE(isPrint(0xAD)); // SOFT HYPHEN is displayed on most terminals
82 // as either a space or a dash.
83 EXPECT_TRUE(isPrint(0xAE));
85 // MacOS implementation doesn't think it's printable.
87 EXPECT_TRUE(isPrint(0x0377)); // GREEK SMALL LETTER PAMPHYLIAN DIGAMMA
89 EXPECT_FALSE(isPrint(0x0378)); // <reserved-0378>..<reserved-0379>
91 EXPECT_FALSE(isPrint(0x0600)); // ARABIC NUMBER SIGN
93 EXPECT_FALSE(isPrint(0x1FFFF)); // <reserved-1F774>..<noncharacter-1FFFF>
94 EXPECT_TRUE(isPrint(0x20000)); // CJK UNIFIED IDEOGRAPH-20000
96 EXPECT_FALSE(isPrint(0x10FFFF)); // noncharacter
102 } // namespace locale