Implement 'normal', 'strict', and 'loose' of the 'line-break' property

third_party/WebKit/Source/platform/LayoutLocaleTest.cpp

 // Copyright 2016 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 "platform/LayoutLocale.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
@@ skipping 94 matching lines @@
     EXPECT_EQ(test.hasScriptForHan, locale->hasScriptForHan()) << test.locale;
     if (!test.hasScriptForHan)
       EXPECT_EQ(USCRIPT_SIMPLIFIED_HAN, locale->scriptForHan()) << test.locale;
     else if (test.scriptForHan)
       EXPECT_EQ(test.scriptForHan, locale->scriptForHan()) << test.locale;
     else
       EXPECT_EQ(test.script, locale->scriptForHan()) << test.locale;
   }
 }
 
+TEST(LayoutLocaleTest, BreakKeyword) {
+  struct {
+    const char* expected;
+    const char* locale;
+    LineBreakIteratorMode mode;
+  } tests[] = {
+      {nullptr, nullptr, LineBreakIteratorMode::Default},
+      {"", "", LineBreakIteratorMode::Default},
+      {nullptr, nullptr, LineBreakIteratorMode::Strict},
+      {"", "", LineBreakIteratorMode::Strict},
+      {"ja", "ja", LineBreakIteratorMode::Default},
+      {"ja@lb=normal", "ja", LineBreakIteratorMode::Normal},
+      {"ja@lb=strict", "ja", LineBreakIteratorMode::Strict},
+      {"ja@lb=loose", "ja", LineBreakIteratorMode::Loose},
+  };
+  for (const auto& test : tests) {
+    RefPtr<LayoutLocale> locale = LayoutLocale::createForTesting(test.locale);
+    EXPECT_EQ(test.expected, locale->localeWithBreakKeyword(test.mode))
+        << String::format("'%s' with line-break %d should be '%s'", test.locale,
+                          static_cast<int>(test.mode), test.expected);
+  }
+}
+
 }  // namespace blink