bindings: Make SanitizerConfig member types non-null

SanitierConfig is a construction options for Sanitizer.
Its members are defined to have non-null types in spec[1], and
this CL makes its Blink implementation to follow the spec.

[1] https://wicg.github.io/sanitizer-api/#sanitizer-api

Bug: 839389, 116418
Change-Id: I86302fe6f36894bf102d23844bb9353ba5bdb1b2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2444770Reviewed-by: Yifan Luo <lyf@chromium.org>
Commit-Queue: Hitoshi Yoshida <peria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814159}

third_party/blink/renderer/modules/sanitizer_api/sanitizer.cc

@@ -28,9 +28,9 @@ Sanitizer* Sanitizer::Create(const SanitizerConfig* config,
 Sanitizer::Sanitizer(const SanitizerConfig* config)
     : config_(const_cast<SanitizerConfig*>(config)) {
   // Format dropElements to uppercases.
-  if (config->hasDropElementsNonNull()) {
+  if (config->hasDropElements()) {
     Vector<String> l;
-    for (const String& s : config->dropElementsNonNull()) {
+    for (const String& s : config->dropElements()) {
       l.push_back(s.UpperASCII());
     }
     config_->setDropElements(l);
@@ -71,8 +71,7 @@ DocumentFragment* Sanitizer::sanitize(ScriptState* script_state,
   fragment->ParseHTML(input, document->QuerySelector("body"));
 
   // Remove all the elements in the dropElements list.
-  if (config_->hasDropElementsNonNull() ||
-      config_->hasDropAttributesNonNull()) {
+  if (config_->hasDropElements() || config_->hasDropAttributes()) {
     Node* node = fragment->firstChild();
 
     while (node) {
@@ -86,8 +85,8 @@ DocumentFragment* Sanitizer::sanitize(ScriptState* script_state,
       String node_name = node->nodeName();
       // If the current element is dropped, remove current element entirely and
       // proceed to its next sibling.
-      if (config_->hasDropElementsNonNull() &&
-          config_->dropElementsNonNull().Contains(node_name.UpperASCII())) {
+      if (config_->hasDropElements() &&
+          config_->dropElements().Contains(node_name.UpperASCII())) {
         Node* tmp = node;
         node = NodeTraversal::NextSkippingChildren(*node, fragment);
         tmp->remove();

third_party/blink/renderer/modules/sanitizer_api/sanitizer_config.idl

@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// https://github.com/WICG/sanitizer-api
+// https://wicg.github.io/sanitizer-api/#sanitizer-api
 
 dictionary SanitizerConfig {
-  sequence<DOMString>? dropElements;
-  sequence<DOMString>? dropAttributes;
+  sequence<DOMString> dropElements;
+  sequence<DOMString> dropAttributes;
 };

third_party/blink/web_tests/external/wpt/sanitizer-api/sanitizer-config.tentative-expected.txt

 This is a testharness.js-based test.
-FAIL SanitizerAPI creator without config. assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI creator with empty config. assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI creator with null as config. assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI creator with undefined as config. assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI creator with config ignore unknown values. assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI config is not editable. assert_object_equals: unexpected property "dropAttributes"
+FAIL SanitizerAPI creator without config. assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI creator with empty config. assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI creator with null as config. assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI creator with undefined as config. assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI creator with config ignore unknown values. assert_object_equals: expected property "dropElements" missing
+PASS SanitizerAPI config is not editable.
 PASS SanitizerAPI creator with config {dropElements: []}.
-FAIL SanitizerAPI creator with config {dropElements: null}. assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI creator with config {dropElements: undefined}. assert_object_equals: unexpected property "dropAttributes"
+FAIL SanitizerAPI creator with config {dropElements: null}. Failed to construct 'Sanitizer': The provided value cannot be converted to a sequence.
+FAIL SanitizerAPI creator with config {dropElements: undefined}. assert_object_equals: expected property "dropElements" missing
 PASS SanitizerAPI creator with config {dropElements: 123}.
 PASS SanitizerAPI creator with config {dropElements: div}.
 Harness: the test ran to completion.

third_party/blink/web_tests/external/wpt/sanitizer-api/sanitizer-sanitize.tentative-expected.txt

 This is a testharness.js-based test.
-FAIL SanitizerAPI sanitize function for string assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for html fragment assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for broken html assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for empty object assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for number assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for zeros assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for arithmetic assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for empty string assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for undefined assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for null assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for document assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for html without close tag assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for scripts assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for onclick scripts assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for invalid config_input assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for empty dropElements list assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for test html without close tag with dropElements list ['div'] assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for test script with ["script"] as dropElements list assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for dropElements list ["test", "i"]} assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for dropElements list ["I", "AM"]} assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for dropElements list ["am", "p"]} assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitize function for dropElements list with invalid values} assert_object_equals: unexpected property "dropAttributes"
+FAIL SanitizerAPI sanitize function for string assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for html fragment assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for broken html assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for empty object assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for number assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for zeros assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for arithmetic assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for empty string assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for undefined assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for null assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for document assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for html without close tag assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for scripts assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for onclick scripts assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitize function for invalid config_input assert_object_equals: expected property "dropElements" missing
+PASS SanitizerAPI sanitize function for empty dropElements list
+PASS SanitizerAPI sanitize function for test html without close tag with dropElements list ['div']
+PASS SanitizerAPI sanitize function for test script with ["script"] as dropElements list
+PASS SanitizerAPI sanitize function for dropElements list ["test", "i"]}
+PASS SanitizerAPI sanitize function for dropElements list ["I", "AM"]}
+PASS SanitizerAPI sanitize function for dropElements list ["am", "p"]}
+PASS SanitizerAPI sanitize function for dropElements list with invalid values}
 Harness: the test ran to completion.
 

third_party/blink/web_tests/external/wpt/sanitizer-api/sanitizer-sanitizeToString.tentative-expected.txt

 This is a testharness.js-based test.
-FAIL SanitizerAPI sanitizeToString function for string assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for html fragment assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for broken html assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for empty object assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for number assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for zeros assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for arithmetic assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for empty string assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for undefined assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for null assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for document assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for html without close tag assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for scripts assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for onclick scripts assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for invalid config_input assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for empty dropElements list assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for test html without close tag with dropElements list ['div'] assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for test script with ["script"] as dropElements list assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for dropElements list ["test", "i"]} assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for dropElements list ["I", "AM"]} assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for dropElements list ["am", "p"]} assert_object_equals: unexpected property "dropAttributes"
-FAIL SanitizerAPI sanitizeToString function for dropElements list with invalid values} assert_object_equals: unexpected property "dropAttributes"
+FAIL SanitizerAPI sanitizeToString function for string assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for html fragment assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for broken html assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for empty object assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for number assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for zeros assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for arithmetic assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for empty string assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for undefined assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for null assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for document assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for html without close tag assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for scripts assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for onclick scripts assert_object_equals: expected property "dropElements" missing
+FAIL SanitizerAPI sanitizeToString function for invalid config_input assert_object_equals: expected property "dropElements" missing
+PASS SanitizerAPI sanitizeToString function for empty dropElements list
+PASS SanitizerAPI sanitizeToString function for test html without close tag with dropElements list ['div']
+PASS SanitizerAPI sanitizeToString function for test script with ["script"] as dropElements list
+PASS SanitizerAPI sanitizeToString function for dropElements list ["test", "i"]}
+PASS SanitizerAPI sanitizeToString function for dropElements list ["I", "AM"]}
+PASS SanitizerAPI sanitizeToString function for dropElements list ["am", "p"]}
+PASS SanitizerAPI sanitizeToString function for dropElements list with invalid values}
 Harness: the test ran to completion.
 

third_party/blink/web_tests/wpt_internal/sanitizer-api/sanitizer-config.tentative.html

@@ -8,7 +8,7 @@
 
 <body>
 <script>
-    const default_option = {dropElements: null, dropAttributes: null};
+    const default_option = {};
     test(t => {
       let s = new Sanitizer();
       assert_true(s instanceof Sanitizer);
@@ -44,32 +44,32 @@
       let options = {dropElements: ["div"]};
       let s = new Sanitizer(options);
       assert_true(s instanceof Sanitizer);
-      assert_object_equals(s.creationOptions, {dropElements: ["DIV"], dropAttributes: null});
+      assert_object_equals(s.creationOptions, {dropElements: ["DIV"]});
 
       options.dropElements.push("test");
-      assert_object_equals(s.creationOptions, {dropElements: ["DIV"], dropAttributes: null});
+      assert_object_equals(s.creationOptions, {dropElements: ["DIV"]});
 
       s.creationOptions = {dropElements: ["test", "t"]};
-      assert_object_equals(s.creationOptions, {dropElements: ["DIV"], dropAttributes: null});
+      assert_object_equals(s.creationOptions, {dropElements: ["DIV"]});
 
       s.creationOptions['dropElements'] = [1,2,3];
-      assert_object_equals(s.creationOptions, {dropElements: ["DIV"], dropAttributes: null});
+      assert_object_equals(s.creationOptions, {dropElements: ["DIV"]});
     }, "SanitizerAPI config dropElements is not editable.");
 
     test(t => {
       let options = {dropAttributes: ["onclick"]};
       let s = new Sanitizer(options);
       assert_true(s instanceof Sanitizer);
-      assert_object_equals(s.creationOptions, {dropElements: null, dropAttributes: ["onclick"]});
+      assert_object_equals(s.creationOptions, {dropAttributes: ["onclick"]});
 
       options.dropAttributes.push("test");
-      assert_object_equals(s.creationOptions, {dropElements: null, dropAttributes: ["onclick"]});
+      assert_object_equals(s.creationOptions, {dropAttributes: ["onclick"]});
 
       s.creationOptions = {dropAttributes: ["test", "t"]};
-      assert_object_equals(s.creationOptions, {dropElements: null, dropAttributes: ["onclick"]});
+      assert_object_equals(s.creationOptions, {dropAttributes: ["onclick"]});
 
       s.creationOptions['dropAttributes'] = [1,2,3];
-      assert_object_equals(s.creationOptions, {dropElements: null, dropAttributes: ["onclick"]});
+      assert_object_equals(s.creationOptions, {dropAttributes: ["onclick"]});
     }, "SanitizerAPI config dropAttributes is not editable.");
 
     test(t => {
@@ -78,13 +78,6 @@
       assert_equals(s.sanitizeToString("<div>balabala<i>test</i></div>"), "<div>balabala<i>test</i></div>");
     }, "SanitizerAPI creator with config {dropElements: []}.")
 
-    test(t => {
-      let s = new Sanitizer({dropElements: null});
-      assert_true(s instanceof Sanitizer);
-      assert_true(s.creationOptions instanceof Object);
-      assert_object_equals(s.creationOptions, default_option);
-    }, "SanitizerAPI creator with config {dropElements: null}.")
-
     test(t => {
       let s = new Sanitizer({dropElements: undefined});
       assert_true(s instanceof Sanitizer);
@@ -100,6 +93,9 @@
       assert_throws_js(TypeError, _ => {let s = new Sanitizer({dropElements: "div"})});
     }, "SanitizerAPI creator with config {dropElements: div}.");
 
+    test(t => {
+      assert_throws_js(TypeError, _ => {let s = new Sanitizer({dropElements: null})});
+    }, "SanitizerAPI creator with config {dropElements: null}.")
 
     test(t => {
       let s = new Sanitizer({dropAttributes: []});
@@ -107,13 +103,6 @@
       assert_equals(s.sanitizeToString("<div>balabala<i>test</i></div>"), "<div>balabala<i>test</i></div>");
     }, "SanitizerAPI creator with config {dropAttributes: []}.")
 
-    test(t => {
-      let s = new Sanitizer({dropAttributes: null});
-      assert_true(s instanceof Sanitizer);
-      assert_true(s.creationOptions instanceof Object);
-      assert_object_equals(s.creationOptions, default_option);
-    }, "SanitizerAPI creator with config {dropAttributes: null}.")
-
     test(t => {
       let s = new Sanitizer({dropAttributes: undefined});
       assert_true(s instanceof Sanitizer);
@@ -129,6 +118,10 @@
       assert_throws_js(TypeError, _ => {let s = new Sanitizer({dropAttributes: "div"})});
     }, "SanitizerAPI creator with config {dropAttributes: div}.");
 
+    test(t => {
+      assert_throws_js(TypeError, _ => {let s = new Sanitizer({dropAttributes: null})});
+    }, "SanitizerAPI creator with config {dropAttributes: null}.")
+
 </script>
 </body>
 </html>

third_party/blink/web_tests/wpt_internal/sanitizer-api/sanitizer-sanitize.tentative.html

@@ -16,7 +16,7 @@
 
     test(t => {
       let s = new Sanitizer({});
-      assert_object_equals(s.creationOptions, {dropElements: null, dropAttributes: null});
+      assert_object_equals(s.creationOptions, {});
       assert_throws_js(TypeError, _ => s.sanitize());
     }, "SanitizerAPI sanitize function without argument should throw an error.");
 

third_party/blink/web_tests/wpt_internal/sanitizer-api/sanitizer-sanitizeToString.tentative.html

@@ -10,7 +10,7 @@
 <script>
     test(t => {
       let s = new Sanitizer({});
-      assert_object_equals(s.creationOptions, {dropElements: null, dropAttributes: null});
+      assert_object_equals(s.creationOptions, {});
       assert_throws_js(TypeError, _ => s.sanitizeToString());
     }, "SanitizerAPI sanitize function without argument should throw an error.");
 

third_party/blink/web_tests/wpt_internal/sanitizer-api/support/testcases.sub.js

 const testcases = [
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: "test", result: "test", message: "string"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: "<b>bla</b>", result: "<b>bla</b>", message: "html fragment"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: "<a<embla", result: "", message: "broken html"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: {}, result: "[object Object]", message: "empty object"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: 1, result: "1", message: "number"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: 000, result: "0", message: "zeros"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: 1+2, result: "3", message: "arithmetic"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: "", result: "", message: "empty string"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: undefined, result: "undefined", message: "undefined"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: null, result: "null", message: "null"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: "<html><head></head><body>test</body></html>", result: "test", message: "document"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: "<div>test", result: "<div>test</div>", message: "html without close tag"},
-  {config_input: {}, config_value: {dropElements: null, dropAttributes: null}, value: "<script>alert('i am a test')<\/script>", result: "", message: "scripts for default configs"},
-  {config_input: {test: 123}, config_value: {dropElements: null, dropAttributes: null}, value: "test", result: "test", message: "invalid config_input"},
-  {config_input: {dropElements: []}, config_value: {dropElements:[], dropAttributes: null}, value: "test", result: "test", message: "empty dropElements list"},
-  {config_input: {dropElements: ["div"]}, config_value: {dropElements:["DIV"], dropAttributes: null}, value: "<div>test</div><c>bla", result: "<c>bla</c>", message: "test html without close tag with dropElements list ['div']"},
-  {config_input: {dropElements: ["script"]}, config_value: {dropElements:["SCRIPT"], dropAttributes: null}, value: "<script>alert('i am a test')<\/script>", result: "", message: "test script with [\"script\"] as dropElements list"},
-  {config_input: {dropElements: ["test", "i"]}, config_value: {dropElements:["TEST","I"], dropAttributes: null}, value: "<div>balabala<i>test</i></div><test>t</test>", result: "<div>balabala</div>", message: "dropElements list [\"test\", \"i\"]}"},
-  {config_input: {dropElements: ["I", "AM"]}, config_value: {dropElements:["I", "AM"], dropAttributes: null}, value: "<div>balabala<am>test</am></div>", result: "<div>balabala</div>", message: "dropElements list [\"I\", \"AM\"]}"},
-  {config_input: {dropElements: ["am", "p"]}, config_value: {dropElements:["AM","P"], dropAttributes: null}, value: "<div>balabala<i>i</i><p>t</p><test>a</test></div>", result: "<div>balabala<i>i</i><test>a</test></div>", message: "dropElements list [\"am\", \"p\"]}"},
-  {config_input: {dropElements: [123, [], "test", "i"]}, config_value: {dropElements:["123","","TEST","I"], dropAttributes: null}, value: "<div>balabala<i>test</i></div><test>t</test>", result: "<div>balabala</div>", message: "dropElements list with invalid values}"},
-  {config_input: {dropAttributes: ["onclick"]}, config_value: {dropElements: null, dropAttributes: ["onclick"]}, value: "<p onclick='a= 123'>Click.</p>", result: "<p>Click.</p>", message: "dropAttributes list [\"onclick\"] with onclick scripts"},
-  {config_input: {dropAttributes: []}, config_value: {dropElements: null, dropAttributes: []}, value: "<p onclick='a= 123'>Click.</p>", result: "<p onclick=\"a= 123\">Click.</p>", message: "empty dropAttributes list with onclick scripts"},
-  {config_input: {dropAttributes: ["id"]}, config_value: {dropElements: null, dropAttributes: ["id"]}, value: "<p onclick='a= 123'>Click.</p>", result: "<p onclick=\"a= 123\">Click.</p>", message: "dropAttributes list [\"id\"] with onclick scripts"},
-  {config_input: {dropAttributes: ["ONCLICK"]}, config_value: {dropElements: null, dropAttributes: ["onclick"]}, value: "<p onclick='a= 123'>Click.</p>", result: "<p>Click.</p>", message: "dropAttributes list [\"ONCLICK\"] with onclick scripts"},
-  {config_input: {dropAttributes: ["data-attribute-with-dashes"]}, config_value: {dropElements: null, dropAttributes: ["data-attribute-with-dashes"]}, value: "<p id='p' data-attribute-with-dashes='123'>Click.</p><script>document.getElementById('p').dataset.attributeWithDashes=123;</script>", result: "<p id=\"p\">Click.</p><script></script>", message: "dropAttributes list [\"data-attribute-with-dashes\"] with dom dataset js access."},
+  {config_input: {}, config_value: {}, value: "test", result: "test", message: "string"},
+  {config_input: {}, config_value: {}, value: "<b>bla</b>", result: "<b>bla</b>", message: "html fragment"},
+  {config_input: {}, config_value: {}, value: "<a<embla", result: "", message: "broken html"},
+  {config_input: {}, config_value: {}, value: {}, result: "[object Object]", message: "empty object"},
+  {config_input: {}, config_value: {}, value: 1, result: "1", message: "number"},
+  {config_input: {}, config_value: {}, value: 000, result: "0", message: "zeros"},
+  {config_input: {}, config_value: {}, value: 1+2, result: "3", message: "arithmetic"},
+  {config_input: {}, config_value: {}, value: "", result: "", message: "empty string"},
+  {config_input: {}, config_value: {}, value: undefined, result: "undefined", message: "undefined"},
+  {config_input: {}, config_value: {}, value: null, result: "null", message: "null"},
+  {config_input: {}, config_value: {}, value: "<html><head></head><body>test</body></html>", result: "test", message: "document"},
+  {config_input: {}, config_value: {}, value: "<div>test", result: "<div>test</div>", message: "html without close tag"},
+  {config_input: {}, config_value: {}, value: "<script>alert('i am a test')<\/script>", result: "", message: "scripts for default configs"},
+  {config_input: {test: 123}, config_value: {}, value: "test", result: "test", message: "invalid config_input"},
+  {config_input: {dropElements: []}, config_value: {dropElements:[]}, value: "test", result: "test", message: "empty dropElements list"},
+  {config_input: {dropElements: ["div"]}, config_value: {dropElements:["DIV"]}, value: "<div>test</div><c>bla", result: "<c>bla</c>", message: "test html without close tag with dropElements list ['div']"},
+  {config_input: {dropElements: ["script"]}, config_value: {dropElements:["SCRIPT"]}, value: "<script>alert('i am a test')<\/script>", result: "", message: "test script with [\"script\"] as dropElements list"},
+  {config_input: {dropElements: ["test", "i"]}, config_value: {dropElements:["TEST","I"]}, value: "<div>balabala<i>test</i></div><test>t</test>", result: "<div>balabala</div>", message: "dropElements list [\"test\", \"i\"]}"},
+  {config_input: {dropElements: ["I", "AM"]}, config_value: {dropElements:["I", "AM"]}, value: "<div>balabala<am>test</am></div>", result: "<div>balabala</div>", message: "dropElements list [\"I\", \"AM\"]}"},
+  {config_input: {dropElements: ["am", "p"]}, config_value: {dropElements:["AM","P"]}, value: "<div>balabala<i>i</i><p>t</p><test>a</test></div>", result: "<div>balabala<i>i</i><test>a</test></div>", message: "dropElements list [\"am\", \"p\"]}"},
+  {config_input: {dropElements: [123, [], "test", "i"]}, config_value: {dropElements:["123","","TEST","I"]}, value: "<div>balabala<i>test</i></div><test>t</test>", result: "<div>balabala</div>", message: "dropElements list with invalid values}"},
+  {config_input: {dropAttributes: ["onclick"]}, config_value: {dropAttributes: ["onclick"]}, value: "<p onclick='a= 123'>Click.</p>", result: "<p>Click.</p>", message: "dropAttributes list [\"onclick\"] with onclick scripts"},
+  {config_input: {dropAttributes: []}, config_value: {dropAttributes: []}, value: "<p onclick='a= 123'>Click.</p>", result: "<p onclick=\"a= 123\">Click.</p>", message: "empty dropAttributes list with onclick scripts"},
+  {config_input: {dropAttributes: ["id"]}, config_value: {dropAttributes: ["id"]}, value: "<p onclick='a= 123'>Click.</p>", result: "<p onclick=\"a= 123\">Click.</p>", message: "dropAttributes list [\"id\"] with onclick scripts"},
+  {config_input: {dropAttributes: ["ONCLICK"]}, config_value: {dropAttributes: ["onclick"]}, value: "<p onclick='a= 123'>Click.</p>", result: "<p>Click.</p>", message: "dropAttributes list [\"ONCLICK\"] with onclick scripts"},
+  {config_input: {dropAttributes: ["data-attribute-with-dashes"]}, config_value: {dropAttributes: ["data-attribute-with-dashes"]}, value: "<p id='p' data-attribute-with-dashes='123'>Click.</p><script>document.getElementById('p').dataset.attributeWithDashes=123;</script>", result: "<p id=\"p\">Click.</p><script></script>", message: "dropAttributes list [\"data-attribute-with-dashes\"] with dom dataset js access."},
 ];