@@ -0,0 +1,550 @@
+// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.%0Apackage com.intellij.openapi.editor.markup;%0A%0Aimport junit.framework.TestCase;%0A%0Apublic class TextAttributeTest extends TestCase %7B%0A%0A  public void testMergeDefaultAttributes() %7B%0A    TextAttributes attributes = new TextAttributes();%0A    TextAttributes otherAttributes = new TextAttributes();%0A    TextAttributes merge = TextAttributes.merge(attributes, otherAttributes);%0A    assertEquals(attributes, merge);%0A  %7D%0A%7D%0A

Test for WI-46392 IDEA-CR-47273