1 files changed, 47 insertions, 0 deletions
diff --git a/third_party/WebKit/LayoutTests/fast/forms/textarea/textarea-set-defaultvalue-after-value.html b/third_party/WebKit/LayoutTests/fast/forms/textarea/textarea-set-defaultvalue-after-value.html
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index 0000000..b01638a
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+++ b/third_party/WebKit/LayoutTests/fast/forms/textarea/textarea-set-defaultvalue-after-value.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html>
+<head>
+<script src="../../../resources/js-test.js"></script>
+</head>
+<body>
+<p id="description">Tests to check behaviors of dirty flag and defaultValue change.</p>
+<div id="console"></div>
+<form id=form>
+<textarea name=textarea id=textarea>
+default
+</textarea>
+</form>
+
+<script>
+var form = document.getElementById('form');
+var textarea = document.getElementById('textarea');
+
+// Dirty by execCommand(), then setDefaultValue().
+textarea.focus();
+textarea.select();
+shouldBe('document.execCommand("InsertText", false, "user-updated"); textarea.value', '"user-updated"');
+shouldBe('textarea.defaultValue = "default 2"; textarea.value', '"user-updated"');
+shouldBe('form.reset(); textarea.value', '"default 2"');
+shouldBe('textarea.defaultValue = "default 3"; textarea.value', '"default 3"');
+
+// Dirty by setValue(), then setDefaultValue().
+shouldBe('textarea.value = "script-updated"; textarea.value', '"script-updated"');
+shouldBe('textarea.defaultValue = "default 4"; textarea.value', '"script-updated"');
+shouldBe('form.reset(); textarea.value', '"default 4"');
+
+// Dirty by setValue(), then update defaultValue by innerHTML.
+shouldBe('textarea.value = "script-updated"; textarea.value', '"script-updated"');
+shouldBe('textarea.innerHTML = "default 5"; textarea.value', '"script-updated"');
+shouldBe('form.reset(); textarea.value', '"default 5"');
+shouldBe('textarea.innerHTML = "default 6"; textarea.value', '"default 6"');
+
+// Dirty by setValue(), then update defaultValue by DOM tree operations.
+shouldBe('textarea.value = "script-updated"; textarea.value', '"script-updated"');
+shouldBe('textarea.removeChild(textarea.firstChild); textarea.appendChild(document.createTextNode("default 5")); textarea.value', '"script-updated"');
+shouldBe('form.reset(); textarea.value', '"default 5"');
+shouldBe('textarea.removeChild(textarea.firstChild); textarea.appendChild(document.createTextNode("default 6")); textarea.value', '"default 6"');
+form.innerHTML = '';
+</script>
+
+</body>
+</html>