| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "components/language_usage_metrics/language_usage_metrics.h" |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace language_usage_metrics { |
| |
| TEST(LanguageUsageMetricsTest, ParseAcceptLanguages) { |
| std::set<int> language_set; |
| std::set<int>::const_iterator it; |
| |
| const int ENGLISH = 25966; |
| const int SPANISH = 25971; |
| const int JAPANESE = 27233; |
| |
| // Basic single language case. |
| LanguageUsageMetrics::ParseAcceptLanguages("ja", &language_set); |
| EXPECT_EQ(1U, language_set.size()); |
| EXPECT_EQ(JAPANESE, *language_set.begin()); |
| |
| // Empty language. |
| LanguageUsageMetrics::ParseAcceptLanguages(std::string(), &language_set); |
| EXPECT_EQ(0U, language_set.size()); |
| |
| // Country code is ignored. |
| LanguageUsageMetrics::ParseAcceptLanguages("ja-JP", &language_set); |
| EXPECT_EQ(1U, language_set.size()); |
| EXPECT_EQ(JAPANESE, *language_set.begin()); |
| |
| // Case is ignored. |
| LanguageUsageMetrics::ParseAcceptLanguages("Ja-jP", &language_set); |
| EXPECT_EQ(1U, language_set.size()); |
| EXPECT_EQ(JAPANESE, *language_set.begin()); |
| |
| // Underscore as the separator. |
| LanguageUsageMetrics::ParseAcceptLanguages("ja_JP", &language_set); |
| EXPECT_EQ(1U, language_set.size()); |
| EXPECT_EQ(JAPANESE, *language_set.begin()); |
| |
| // The result contains a same language code only once. |
| LanguageUsageMetrics::ParseAcceptLanguages("ja-JP,ja", &language_set); |
| EXPECT_EQ(1U, language_set.size()); |
| EXPECT_EQ(JAPANESE, *language_set.begin()); |
| |
| // Basic two languages case. |
| LanguageUsageMetrics::ParseAcceptLanguages("en,ja", &language_set); |
| EXPECT_EQ(2U, language_set.size()); |
| it = language_set.begin(); |
| EXPECT_EQ(ENGLISH, *it); |
| EXPECT_EQ(JAPANESE, *++it); |
| |
| // Multiple languages. |
| LanguageUsageMetrics::ParseAcceptLanguages("ja-JP,en,es,ja,en-US", |
| &language_set); |
| EXPECT_EQ(3U, language_set.size()); |
| it = language_set.begin(); |
| EXPECT_EQ(ENGLISH, *it); |
| EXPECT_EQ(SPANISH, *++it); |
| EXPECT_EQ(JAPANESE, *++it); |
| |
| // Two empty languages. |
| LanguageUsageMetrics::ParseAcceptLanguages(",", &language_set); |
| EXPECT_EQ(0U, language_set.size()); |
| |
| // Trailing comma. |
| LanguageUsageMetrics::ParseAcceptLanguages("ja,", &language_set); |
| EXPECT_EQ(1U, language_set.size()); |
| EXPECT_EQ(JAPANESE, *language_set.begin()); |
| |
| // Leading comma. |
| LanguageUsageMetrics::ParseAcceptLanguages(",es", &language_set); |
| EXPECT_EQ(1U, language_set.size()); |
| EXPECT_EQ(SPANISH, *language_set.begin()); |
| |
| // Combination of invalid and valid. |
| LanguageUsageMetrics::ParseAcceptLanguages("1234,en", &language_set); |
| EXPECT_EQ(1U, language_set.size()); |
| it = language_set.begin(); |
| EXPECT_EQ(ENGLISH, *it); |
| } |
| |
| TEST(LanguageUsageMetricsTest, ToLanguageCode) { |
| const int SPANISH = 25971; |
| const int JAPANESE = 27233; |
| |
| // Basic case. |
| EXPECT_EQ(JAPANESE, LanguageUsageMetrics::ToLanguageCode("ja")); |
| |
| // Case is ignored. |
| EXPECT_EQ(SPANISH, LanguageUsageMetrics::ToLanguageCode("Es")); |
| |
| // Coutry code is ignored. |
| EXPECT_EQ(JAPANESE, LanguageUsageMetrics::ToLanguageCode("ja-JP")); |
| |
| // Invalid locales are considered as unknown language. |
| EXPECT_EQ(0, LanguageUsageMetrics::ToLanguageCode(std::string())); |
| EXPECT_EQ(0, LanguageUsageMetrics::ToLanguageCode("1234")); |
| |
| // "xx" is not acceptable because it doesn't exist in ISO 639-1 table. |
| // However, LanguageUsageMetrics doesn't tell what code is valid. |
| EXPECT_EQ(30840, LanguageUsageMetrics::ToLanguageCode("xx")); |
| } |
| |
| } // namespace language_usage_metrics |