1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "utils/utf8_utils.h"
18
19 #include <gtest/gtest.h>
20
21 #include <vector>
22
23 #include "utils/int_array_view.h"
24
25 namespace latinime {
26 namespace dicttoolkit {
27 namespace {
28
TEST(Utf8UtilsTests,TestGetCodePoints)29 TEST(Utf8UtilsTests, TestGetCodePoints) {
30 {
31 const std::vector<int> codePoints = Utf8Utils::getCodePoints("");
32 EXPECT_EQ(0u, codePoints.size());
33 }
34 {
35 const std::vector<int> codePoints = Utf8Utils::getCodePoints("test");
36 EXPECT_EQ(4u, codePoints.size());
37 EXPECT_EQ('t', codePoints[0]);
38 EXPECT_EQ('e', codePoints[1]);
39 EXPECT_EQ('s', codePoints[2]);
40 EXPECT_EQ('t', codePoints[3]);
41 }
42 {
43 const std::vector<int> codePoints = Utf8Utils::getCodePoints(u8"\u3042a\u03C2\u0410");
44 EXPECT_EQ(4u, codePoints.size());
45 EXPECT_EQ(0x3042, codePoints[0]); // HIRAGANA LETTER A
46 EXPECT_EQ('a', codePoints[1]);
47 EXPECT_EQ(0x03C2, codePoints[2]); // CYRILLIC CAPITAL LETTER A
48 EXPECT_EQ(0x0410, codePoints[3]); // GREEK SMALL LETTER FINAL SIGMA
49 }
50 {
51 const std::vector<int> codePoints = Utf8Utils::getCodePoints(u8"\U0001F36A?\U0001F752");
52 EXPECT_EQ(3u, codePoints.size());
53 EXPECT_EQ(0x1F36A, codePoints[0]); // COOKIE
54 EXPECT_EQ('?', codePoints[1]);
55 EXPECT_EQ(0x1F752, codePoints[2]); // ALCHEMICAL SYMBOL FOR STARRED TRIDENT
56 }
57
58 // Redundant UTF-8 sequences must be rejected.
59 EXPECT_TRUE(Utf8Utils::getCodePoints("\xC0\xAF").empty());
60 EXPECT_TRUE(Utf8Utils::getCodePoints("\xE0\x80\xAF").empty());
61 EXPECT_TRUE(Utf8Utils::getCodePoints("\xF0\x80\x80\xAF").empty());
62 }
63
TEST(Utf8UtilsTests,TestGetUtf8String)64 TEST(Utf8UtilsTests, TestGetUtf8String) {
65 {
66 const std::vector<int> codePoints = {'t', 'e', 's', 't'};
67 EXPECT_EQ("test", Utf8Utils::getUtf8String(CodePointArrayView(codePoints)));
68 }
69 {
70 const std::vector<int> codePoints = {
71 0x00E0 /* LATIN SMALL LETTER A WITH GRAVE */,
72 0x03C2 /* GREEK SMALL LETTER FINAL SIGMA */,
73 0x0430 /* CYRILLIC SMALL LETTER A */,
74 0x3042 /* HIRAGANA LETTER A */,
75 0x1F36A /* COOKIE */,
76 0x1F752 /* ALCHEMICAL SYMBOL FOR STARRED TRIDENT */
77 };
78 EXPECT_EQ(u8"\u00E0\u03C2\u0430\u3042\U0001F36A\U0001F752",
79 Utf8Utils::getUtf8String(CodePointArrayView(codePoints)));
80 }
81 }
82
83 } // namespace
84 } // namespace dicttoolkit
85 } // namespace latinime
86