Add SetCharacterDataCommand

third_party/WebKit/Source/core/editing/commands/SetCharacterDataCommandTest.cpp

Index: third_party/WebKit/Source/core/editing/commands/SetCharacterDataCommandTest.cpp
diff --git a/third_party/WebKit/Source/core/editing/commands/SetCharacterDataCommandTest.cpp b/third_party/WebKit/Source/core/editing/commands/SetCharacterDataCommandTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..72dc6ad199b575e7df8fbab1167386e887a984d4
--- /dev/null
+++ b/third_party/WebKit/Source/core/editing/commands/SetCharacterDataCommandTest.cpp
@@ -0,0 +1,29 @@
+// Copyright 2017 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 "core/editing/commands/SetCharacterDataCommand.h"
+
+#include "core/editing/EditingTestBase.h"
+#include "core/editing/commands/EditingState.h"
+
+namespace blink {
+
+class SetCharacterDataCommandTest : public EditingTestBase {};
+
+TEST_F(SetCharacterDataCommandTest, applyAndUnapply) {
+  setBodyContent("<div contenteditable>This is a good test case</div>");
+
+  SetCharacterDataCommand* command = SetCharacterDataCommand::create(
+      toText(document().body()->firstChild()->firstChild()), 10, 4, "lousy");
+
+  command->doReapply();
+  EXPECT_EQ("This is a lousy test case",
+            toText(document().body()->firstChild()->firstChild())->wholeText());
+
+  command->doUnapply();
+  EXPECT_EQ("This is a good test case",
+            toText(document().body()->firstChild()->firstChild())->wholeText());
+}
+
+}  // namespace blink