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Side by Side Diff: chrome/renderer/spellchecker/spellcheck_multilingual_unittest.cc

Issue 2198143002: Componentize spellcheck [3]: move renderer/ files to component. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: rebase Created 4 years, 4 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <stddef.h>
6
7 #include <algorithm>
8 #include <memory>
9 #include <utility>
10
11 #include "base/macros.h"
12 #include "base/path_service.h"
13 #include "base/strings/string_split.h"
14 #include "base/strings/string_util.h"
15 #include "base/strings/utf_string_conversions.h"
16 #include "chrome/renderer/spellchecker/spellcheck.h"
17 #include "chrome/renderer/spellchecker/spellcheck_provider_test.h"
18 #include "components/spellcheck/common/spellcheck_common.h"
19 #include "components/spellcheck/common/spellcheck_result.h"
20 #include "testing/gtest/include/gtest/gtest.h"
21 #include "third_party/WebKit/public/platform/WebString.h"
22 #include "third_party/WebKit/public/platform/WebVector.h"
23 #include "third_party/WebKit/public/web/WebTextCheckingResult.h"
24
25 namespace {
26
27 struct SpellcheckTestCase {
28 // A string of text for checking.
29 const wchar_t* input;
30 // The position and the length of the first misspelled word, if any.
31 int expected_misspelling_start;
32 int expected_misspelling_length;
33 };
34
35 base::FilePath GetHunspellDirectory() {
36 base::FilePath hunspell_directory;
37 if (!PathService::Get(base::DIR_SOURCE_ROOT, &hunspell_directory))
38 return base::FilePath();
39
40 hunspell_directory = hunspell_directory.AppendASCII("third_party");
41 hunspell_directory = hunspell_directory.AppendASCII("hunspell_dictionaries");
42 return hunspell_directory;
43 }
44
45 } // namespace
46
47 class MultilingualSpellCheckTest : public testing::Test {
48 public:
49 MultilingualSpellCheckTest() {}
50
51 void ReinitializeSpellCheck(const std::string& unsplit_languages) {
52 spellcheck_ = new SpellCheck();
53 provider_.reset(new TestingSpellCheckProvider(spellcheck_));
54 InitializeSpellCheck(unsplit_languages);
55 }
56
57 void InitializeSpellCheck(const std::string& unsplit_languages) {
58 base::FilePath hunspell_directory = GetHunspellDirectory();
59 EXPECT_FALSE(hunspell_directory.empty());
60 std::vector<std::string> languages = base::SplitString(
61 unsplit_languages, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
62
63 for (const auto& language : languages) {
64 base::File file(
65 spellcheck::GetVersionedFileName(language, hunspell_directory),
66 base::File::FLAG_OPEN | base::File::FLAG_READ);
67 spellcheck_->AddSpellcheckLanguage(std::move(file), language);
68 }
69 }
70
71 ~MultilingualSpellCheckTest() override {}
72 TestingSpellCheckProvider* provider() { return provider_.get(); }
73
74 protected:
75 void ExpectSpellCheckWordResults(const std::string& languages,
76 const SpellcheckTestCase* test_cases,
77 size_t num_test_cases) {
78 ReinitializeSpellCheck(languages);
79
80 for (size_t i = 0; i < num_test_cases; ++i) {
81 int misspelling_start = 0;
82 int misspelling_length = 0;
83 static_cast<blink::WebSpellCheckClient*>(provider())
84 ->spellCheck(blink::WebString(base::WideToUTF16(test_cases[i].input)),
85 misspelling_start, misspelling_length, nullptr);
86
87 EXPECT_EQ(test_cases[i].expected_misspelling_start, misspelling_start)
88 << "Improper misspelling location found with the languages "
89 << languages << " when checking \"" << test_cases[i].input << "\".";
90 EXPECT_EQ(test_cases[i].expected_misspelling_length, misspelling_length)
91 << "Improper misspelling length found with the languages "
92 << languages << " when checking \"" << test_cases[i].input << "\".";
93 }
94 }
95
96 void ExpectSpellCheckParagraphResults(
97 const base::string16& input,
98 const std::vector<SpellCheckResult>& expected) {
99 blink::WebVector<blink::WebTextCheckingResult> results;
100 spellcheck_->SpellCheckParagraph(blink::WebString(input), &results);
101
102 EXPECT_EQ(expected.size(), results.size());
103 size_t size = std::min(results.size(), expected.size());
104 for (size_t i = 0; i < size; ++i) {
105 EXPECT_EQ(blink::WebTextDecorationTypeSpelling, results[i].decoration);
106 EXPECT_EQ(expected[i].location, results[i].location);
107 EXPECT_EQ(expected[i].length, results[i].length);
108 }
109 }
110
111 private:
112 // Owned by |provider_|.
113 SpellCheck* spellcheck_;
114 std::unique_ptr<TestingSpellCheckProvider> provider_;
115 };
116
117 // Check that a string of different words is properly spellchecked for different
118 // combinations of different languages.
119 TEST_F(MultilingualSpellCheckTest, MultilingualSpellCheckWord) {
120 static const SpellcheckTestCase kTestCases[] = {
121 // An English, Spanish, Russian, and Greek word, all spelled correctly.
122 {L"rocket destruyan \x0432\x0441\x0435\x0445 \x03C4\x03B9\x03C2", 0, 0},
123 // A misspelled English word.
124 {L"rocktt destruyan \x0432\x0441\x0435\x0445 \x03C4\x03B9\x03C2", 0, 6},
125 // A misspelled Spanish word.
126 {L"rocket destruynn \x0432\x0441\x0435\x0445 \x03C4\x03B9\x03C2", 7, 9},
127 // A misspelled Russian word.
128 {L"rocket destruyan \x0430\x0430\x0430\x0430 \x03C4\x03B9\x03C2", 17, 4},
129 // A misspelled Greek word.
130 {L"rocket destruyan \x0432\x0441\x0435\x0445 \x03B1\x03B1\x03B1\x03B1",
131 22, 4},
132 // An English word, then Russian, and then a misspelled English word.
133 {L"rocket \x0432\x0441\x0435\x0445 rocktt", 12, 6},
134 };
135
136 // A sorted list of languages. This must start sorted to get all possible
137 // permutations.
138 std::string languages = "el-GR,en-US,es-ES,ru-RU";
139 std::vector<std::string> permuted_languages = base::SplitString(
140 languages, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
141
142 do {
143 languages = base::JoinString(permuted_languages, ",");
144 ExpectSpellCheckWordResults(languages, kTestCases, arraysize(kTestCases));
145 } while (std::next_permutation(permuted_languages.begin(),
146 permuted_languages.end()));
147 }
148
149 TEST_F(MultilingualSpellCheckTest, MultilingualSpellCheckWordEnglishSpanish) {
150 static const SpellcheckTestCase kTestCases[] = {
151 {L"", 0, 0},
152 {L"head hand foot legs arms", 0, 0},
153 {L"head hand foot legs arms zzzz", 25, 4},
154 {L"head hand zzzz foot legs arms", 10, 4},
155 {L"zzzz head hand foot legs arms", 0, 4},
156 {L"zzzz head zzzz foot zzzz arms", 0, 4},
157 {L"head hand foot arms zzzz zzzz", 20, 4},
158 {L"I do not want a monstrous snake near me.", 0, 0},
159 {L"zz do not want a monstrous snake near me.", 0, 2},
160 {L"I do not want zz monstrous snake near me.", 14, 2},
161 {L"I do not want a monstrous zz near me.", 26, 2},
162 {L"I do not want a monstrou snake near me.", 16, 8},
163 {L"I do not want a monstrous snake near zz.", 37, 2},
164 {L"Partially Spanish is very bueno.", 0, 0},
165 {L"Sleeping in the biblioteca is good.", 0, 0},
166 {L"Hermano is my favorite name.", 0, 0},
167 {L"hola hola hola hola hola hola", 0, 0},
168 {L"sand hola hola hola hola hola", 0, 0},
169 {L"hola sand sand sand sand sand", 0, 0},
170 {L"sand sand sand sand sand hola", 0, 0},
171 {L"sand hola sand hola sand hola", 0, 0},
172 {L"hola sand hola sand hola sand", 0, 0},
173 {L"hola:legs", 0, 9},
174 {L"legs:hola", 0, 9}};
175 ExpectSpellCheckWordResults("en-US,es-ES", kTestCases, arraysize(kTestCases));
176 }
177
178 // If there are no spellcheck languages, no text should be marked as misspelled.
179 TEST_F(MultilingualSpellCheckTest, MultilingualSpellCheckParagraphBlank) {
180 ReinitializeSpellCheck(std::string());
181
182 ExpectSpellCheckParagraphResults(
183 // English, German, Spanish, and a misspelled word.
184 base::UTF8ToUTF16("rocket Schwarzkommando destruyan pcnyhon"),
185 std::vector<SpellCheckResult>());
186 }
187
188 // Make sure nothing is considered misspelled when at least one of the selected
189 // languages determines that a word is correctly spelled.
190 TEST_F(MultilingualSpellCheckTest, MultilingualSpellCheckParagraphCorrect) {
191 ReinitializeSpellCheck("en-US,es-ES,de-DE");
192
193 ExpectSpellCheckParagraphResults(
194 // English, German, and Spanish words, all spelled correctly.
195 base::UTF8ToUTF16("rocket Schwarzkommando destruyan"),
196 std::vector<SpellCheckResult>());
197 }
198
199 // Make sure that all the misspellings in the text are found.
200 TEST_F(MultilingualSpellCheckTest, MultilingualSpellCheckParagraph) {
201 ReinitializeSpellCheck("en-US,es-ES");
202 std::vector<SpellCheckResult> expected;
203 expected.push_back(SpellCheckResult(SpellCheckResult::SPELLING, 7, 15));
204 expected.push_back(SpellCheckResult(SpellCheckResult::SPELLING, 33, 7));
205
206 ExpectSpellCheckParagraphResults(
207 // English, German, Spanish, and a misspelled word.
208 base::UTF8ToUTF16("rocket Schwarzkommando destruyan pcnyhon"), expected);
209 }
210
211 // Ensure that suggestions are handled properly for multiple languages.
212 TEST_F(MultilingualSpellCheckTest, MultilingualSpellCheckSuggestions) {
213 ReinitializeSpellCheck("en-US,es-ES");
214 static const struct {
215 // A string of text for checking.
216 const wchar_t* input;
217 // The position and the length of the first invalid word.
218 int expected_misspelling_start;
219 int expected_misspelling_length;
220 // A comma separated string of suggested words that should occur, in their
221 // expected order.
222 const wchar_t* expected_suggestions;
223 } kTestCases[] = {
224 {L"rocket", 0, 0},
225 {L"destruyan", 0, 0},
226 {L"rocet", 0, 5, L"rocket,roce,crochet,troce,rocen"},
227 {L"jum", 0, 3, L"hum,jun,ju,um,juma"},
228 {L"asdne", 0, 5, L"sadness,desasne"},
229 };
230
231 for (size_t i = 0; i < arraysize(kTestCases); ++i) {
232 blink::WebVector<blink::WebString> suggestions;
233 int misspelling_start;
234 int misspelling_length;
235 static_cast<blink::WebSpellCheckClient*>(provider())
236 ->spellCheck(blink::WebString(base::WideToUTF16(kTestCases[i].input)),
237 misspelling_start, misspelling_length, &suggestions);
238
239 EXPECT_EQ(kTestCases[i].expected_misspelling_start, misspelling_start);
240 EXPECT_EQ(kTestCases[i].expected_misspelling_length, misspelling_length);
241 if (!kTestCases[i].expected_suggestions) {
242 EXPECT_EQ(0UL, suggestions.size());
243 continue;
244 }
245
246 std::vector<base::string16> expected_suggestions = base::SplitString(
247 base::WideToUTF16(kTestCases[i].expected_suggestions),
248 base::string16(1, ','), base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
249
250 EXPECT_EQ(expected_suggestions.size(), suggestions.size());
251 for (size_t j = 0;
252 j < std::min(expected_suggestions.size(), suggestions.size()); j++) {
253 EXPECT_EQ(expected_suggestions[j], base::string16(suggestions[j]));
254 }
255 }
256 }
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