Import dom/ from web-platform-tests

third_party/WebKit/LayoutTests/imported/web-platform-tests/dom/nodes/Document-Element-getElementsByTagNameNS.js

+function test_getElementsByTagNameNS(context, element) {
+  test(function() {
+    assert_false(context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "html") instanceof NodeList, "NodeList")
+    assert_true(context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "html") instanceof HTMLCollection, "HTMLCollection")
+    var firstCollection = context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "html"),
+        secondCollection = context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "html")
+    assert_true(firstCollection !== secondCollection || firstCollection === secondCollection,
+                "Caching is allowed.")
+  })
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("test", "body"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    var actual = context.getElementsByTagNameNS("*", "body");
+    var expected = [];
+    var get_elements = function(node) {
+      for (var i = 0; i < node.childNodes.length; i++) {
+        var child = node.childNodes[i];
+        if (child.nodeType === child.ELEMENT_NODE) {
+          if (child.localName == "body") {
+            expected.push(child);
+          }
+          get_elements(child);
+        }
+      }
+    }
+    get_elements(context);
+    assert_array_equals(actual, expected);
+  }, "getElementsByTagNameNS('*', 'body')")
+
+  test(function() {
+    assert_array_equals(context.getElementsByTagNameNS("", "*"), []);
+    var t = element.appendChild(document.createElementNS("", "body"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    assert_array_equals(context.getElementsByTagNameNS("", "*"), [t]);
+  }, "Empty string namespace")
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("test", "body"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    assert_array_equals(context.getElementsByTagNameNS("test", "body"), [t]);
+  }, "body element in test namespace, no prefix")
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("test", "test:body"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    assert_array_equals(context.getElementsByTagNameNS("test", "body"), [t]);
+  }, "body element in test namespace, prefix")
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("test", "BODY"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    assert_array_equals(context.getElementsByTagNameNS("test", "BODY"), [t]);
+    assert_array_equals(context.getElementsByTagNameNS("test", "body"), []);
+  }, "BODY element in test namespace, no prefix")
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("http://www.w3.org/1999/xhtml", "abc"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    assert_array_equals(context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "abc"), [t]);
+    assert_array_equals(context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "ABC"), []);
+    assert_array_equals(context.getElementsByTagNameNS("test", "ABC"), []);
+  }, "abc element in html namespace")
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("http://www.w3.org/1999/xhtml", "ABC"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    assert_array_equals(context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "abc"), []);
+    assert_array_equals(context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "ABC"), [t]);
+  }, "ABC element in html namespace")
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("http://www.w3.org/1999/xhtml", "AÇ"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    assert_array_equals(context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "AÇ"), [t]);
+    assert_array_equals(context.getElementsByTagNameNS("test", "aÇ"), []);
+    assert_array_equals(context.getElementsByTagNameNS("test", "aç"), []);
+  }, "AÇ, case sensitivity")
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("test", "test:BODY"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    assert_array_equals(context.getElementsByTagNameNS("test", "BODY"), [t]);
+    assert_array_equals(context.getElementsByTagNameNS("test", "body"), []);
+  }, "BODY element in test namespace, prefix")
+
+  test(function() {
+    var t = element.appendChild(document.createElementNS("test", "test:test"))
+    this.add_cleanup(function() {element.removeChild(t)})
+    var actual = context.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "*");
+    var expected = [];
+    var get_elements = function(node) {
+      for (var i = 0; i < node.childNodes.length; i++) {
+        var child = node.childNodes[i];
+        if (child.nodeType === child.ELEMENT_NODE) {
+          if (child !== t) {
+            expected.push(child);
+          }
+          get_elements(child);
+        }
+      }
+    }
+    get_elements(context);
+    assert_array_equals(actual, expected);
+  }, "getElementsByTagNameNS('http://www.w3.org/1999/xhtml', '*')")
+
+  test(function() {
+    var actual = context.getElementsByTagNameNS("*", "*");
+    var expected = [];
+    var get_elements = function(node) {
+      for (var i = 0; i < node.childNodes.length; i++) {
+        var child = node.childNodes[i];
+        if (child.nodeType === child.ELEMENT_NODE) {
+          expected.push(child);
+          get_elements(child);
+        }
+      }
+    }
+    get_elements(context);
+    assert_array_equals(actual, expected);
+  }, "getElementsByTagNameNS('*', '*')")
+
+  test(function() {
+    assert_array_equals(context.getElementsByTagNameNS("**", "*"), []);
+    assert_array_equals(context.getElementsByTagNameNS(null, "0"), []);
+    assert_array_equals(context.getElementsByTagNameNS(null, "div"), []);
+  }, "Empty lists")
+}