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+++ b/testing/web-platform/tests/html/semantics/forms/constraints/form-validation-validity-tooLong.html
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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>The constraint validation API Test: element.validity.tooLong</title>
+<link rel="author" title="Intel" href="http://www.intel.com/">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-validitystate-toolong">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#the-constraint-validation-api">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/validator.js"></script>
+<div id="log"></div>
+<script>
+  var testElements = [
+    {
+      tag: "input",
+      types: ["text", "search", "tel", "url", "email", "password"],
+      testData: [ // Non-dirty value
+        {conditions: {maxLength: "", value: "abc"}, expected: false, name: "[target] Non-dirty value - maxlength is not set"},
+        {conditions: {maxLength: "4", value: ""}, expected: false, name: "[target] Non-dirty value - value is empty string"},
+        {conditions: {maxLength: "4", value: "abc"}, expected: false, name: "[target] Non-dirty value - length of value is less than maxlength"},
+        {conditions: {maxLength: "4", value: "abcd"}, expected: false, name: "[target] Non-dirty value - length of value equals to maxlength"},
+        {conditions: {maxLength: "4", value: "abcde"}, expected: false, name: "[target] Non-dirty value - length of value is greater than maxlength"},
+        //Dirty value
+        {conditions: {maxLength: "4", value: "abc"}, expected: false, name: "[target] Dirty value - value is less than maxlength", dirty: true},
+        {conditions: {maxLength: "4", value: "\u0041\u0041\u0041"}, expected: false, name: "[target] Dirty value - length of value(AAA) in unicode is less than maxlength", dirty: true},
+        {conditions: {maxLength: "4", value: "abcd"}, expected: false, name: "[target] Dirty value - value equals to maxlength", dirty: true},
+        // False due to lack of required interactive editing by the user
+        {conditions: {maxLength: "4", value: "abcde"}, expected: false, name: "[target] Dirty value - length of value is greater than maxlength", dirty: true}
+      ]
+    },
+    {
+      tag: "textarea",
+      types: [],
+      testData: [
+        {conditions: {maxLength: "", value: "abc"}, expected: false, name: "[target] Non-dirty value - maxlength is not set"},
+        {conditions: {maxLength: "4", value: ""}, expected: false, name: "[target] Non-dirty value - value is empty string"},
+        {conditions: {maxLength: "4", value: "abc"}, expected: false, name: "[target] Non-dirty value - length of value is less than maxlength"},
+        {conditions: {maxLength: "4", value: "abcd"}, expected: false, name: "[target] Non-dirty value - length of value equals to maxlength"},
+        {conditions: {maxLength: "4", value: "abcde"}, expected: false, name: "[target] Non-dirty value - length of value is greater than maxlength"},
+        //Dirty value
+        {conditions: {maxLength: "4", value: "abc"}, expected: false, name: "[target] Dirty value - value is less than maxlength", dirty: true},
+        {conditions: {maxLength: "4", value: "\u000D\u000A"}, expected: false, name: "[target] Dirty value - length of value(LF, CRLF) in unicode is less than maxlength", dirty: true},
+        {conditions: {maxLength: "4", value: "abcd"}, expected: false, name: "[target] Dirty value - length of value equals to maxlength", dirty: true},
+        // False due to lack of required interactive editing by the user
+        {conditions: {maxLength: "4", value: "abcde"}, expected: false, name: "[target] Dirty value - length of value is greater than maxlength", dirty: true}
+      ]
+    }
+  ];
+
+  validator.run_test (testElements, "tooLong");
+</script>