diff --git a/tests/DefaultsTest.php b/tests/DefaultsTest.php
index f0f0290..551a4d3 100644
--- a/tests/DefaultsTest.php
+++ b/tests/DefaultsTest.php
@@ -89,4 +89,64 @@ public function testDenyAttribute() {
'...
'
);
}
+
+ /**
+ * Allow lists to be nested by default.
+ */
+ public function testDirectNestList() {
+ $html = <<
+ one
+
+ - two
+
+
+HTML;
+ $this->assertFiltered($html, $html);
+ }
+
+ /**
+ * Provide the elements for {@link testElements()}.
+ *
+ * @return array Returns an array for testing.
+ */
+ public function provideInvalidElements() {
+ $elements = explode('-', 'applet-button-form-input-textarea-iframe-script-style-embed-object');
+ $result = [];
+ foreach ($elements as $element) {
+ $result[$element] = [$element];
+ }
+ return $result;
+ }
+
+ /**
+ * Test that default invalid elements are removed.
+ *
+ * @param string $element The element that should be removed.
+ * @dataProvider provideInvalidElements
+ */
+ public function testInvalidElements($element) {
+ $html = "<$element>hi
";
+ $this->assertFiltered('hi
', $html);
+ }
+
+ /**
+ * Test to make sure `javascript:` isn't allowed in an href.
+ */
+ public function testBadScheme() {
+ $this->assertFiltered(
+ 'click',
+ 'click'
+ );
+ }
+
+ /**
+ * Make sure duplicate ID checks aren't being done.
+ */
+ public function testAllowDuplicateIDs() {
+ $this->assertFiltered(
+ 'onetwo',
+ 'onetwo'
+ );
+ }
}