Added test to make sure keyword search works even with non ascii characters

apps/openmw_test_suite/mwdialogue/test_keywordsearch.cpp

@@ -65,3 +65,26 @@ TEST_F(KeywordSearchTest, keyword_test_conflict_resolution3)
     ASSERT_TRUE (matches.size() == 1);
     ASSERT_TRUE (std::string(matches.front().mBeg, matches.front().mEnd) == "bar lock");
 }
+
+
+TEST_F(KeywordSearchTest, keyword_test_utf8_word_begin)
+{
+    // We make sure that the search works well even if the character is not ASCII
+    MWDialogue::KeywordSearch<std::string, int> search;
+    search.seed("états", 0);
+    search.seed("ïrradiés", 0);
+    search.seed("ça nous déçois", 0);
+
+
+    std::string text = "les nations unis ont réunis le monde entier, états units inclus pour parler du problème des gens ïrradiés et ça nous déçois";
+
+    std::vector<MWDialogue::KeywordSearch<std::string, int>::Match> matches;
+    search.highlightKeywords(text.begin(), text.end(), matches);
+
+    ASSERT_TRUE (matches.size() == 3);
+    ASSERT_TRUE(std::string( matches[0].mBeg, matches[0].mEnd) == "états");
+    ASSERT_TRUE(std::string( matches[1].mBeg, matches[1].mEnd) == "ïrradiés");
+    ASSERT_TRUE(std::string( matches[2].mBeg, matches[2].mEnd) == "ça nous déçois");
+
+    //ASSERT_TRUE (std::string(matches.front().mBeg, matches.front().mEnd) == "bar lock");
+}