1 files changed, 82 insertions, 0 deletions
diff --git a/testing/web-platform/tests/dom/nodes/CharacterData-data.html b/testing/web-platform/tests/dom/nodes/CharacterData-data.html
new file mode 100644
index 0000000000..b3b29ea4d7
--- /dev/null
+++ b/testing/web-platform/tests/dom/nodes/CharacterData-data.html
@@ -0,0 +1,82 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>CharacterData.data</title>
+<link rel=help href="https://dom.spec.whatwg.org/#dom-characterdata-data">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+function testNode(create, type) {
+  test(function() {
+    var node = create()
+    assert_equals(node.data, "test")
+    assert_equals(node.length, 4)
+  }, type + ".data initial value")
+
+  test(function() {
+    var node = create()
+    assert_equals(node.data, "test")
+
+    node.data = null;
+    assert_equals(node.data, "")
+    assert_equals(node.length, 0)
+  }, type + ".data = null")
+
+  test(function() {
+    var node = create()
+    assert_equals(node.data, "test")
+
+    node.data = undefined;
+    assert_equals(node.data, "undefined")
+    assert_equals(node.length, 9)
+  }, type + ".data = undefined")
+
+  test(function() {
+    var node = create()
+    assert_equals(node.data, "test")
+
+    node.data = 0;
+    assert_equals(node.data, "0")
+    assert_equals(node.length, 1)
+  }, type + ".data = 0")
+
+  test(function() {
+    var node = create()
+    assert_equals(node.data, "test")
+
+    node.data = "";
+    assert_equals(node.data, "")
+    assert_equals(node.length, 0)
+  }, type + ".data = ''")
+
+  test(function() {
+    var node = create()
+    assert_equals(node.data, "test")
+
+    node.data = "--";
+    assert_equals(node.data, "--")
+    assert_equals(node.length, 2)
+  }, type + ".data = '--'")
+
+  test(function() {
+    var node = create()
+    assert_equals(node.data, "test")
+
+    node.data = "資料";
+    assert_equals(node.data, "資料")
+    assert_equals(node.length, 2)
+  }, type + ".data = '資料'")
+
+  test(function() {
+    var node = create()
+    assert_equals(node.data, "test")
+
+    node.data = "🌠 test 🌠 TEST";
+    assert_equals(node.data, "🌠 test 🌠 TEST")
+    assert_equals(node.length, 15)  // Counting UTF-16 code units
+  }, type + ".data = '🌠 test 🌠 TEST'")
+}
+
+testNode(function() { return document.createTextNode("test") }, "Text")
+testNode(function() { return document.createComment("test") }, "Comment")
+</script>