CREDENTIAL: Implement the 'PasswordCredential(HTMLFormElement)' constructor.

third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html

Index: third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html b/third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html
index eced29d615a7555f72d5ff6856e0246dd208d853..5e1277c24a6cde75a9a050a4044b821e2f63bc44 100644
--- a/third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html
+++ b/third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html
@@ -108,4 +108,45 @@ test(function() {
     assert_throws(new TypeError(),
                   () => { new PasswordCredential({ 'id': undefined, 'password': undefined }); });
 }, 'PasswordCredential objects require IDs and Passwords');
+
+test(function () {
+    var f = document.createElement('form');
+    f.innerHTML = "<input type='text' name='theId' value='musterman' autocomplete='username'>"
+        + "<input type='text' name='thePassword' value='sekrit' autocomplete='current-password'>"
+        + "<input type='text' name='theIcon' value='https://example.com/photo' autocomplete='photo'>"
+        + "<input type='text' name='theExtraField' value='extra'>"
+        + "<input type='text' name='theName' value='friendly name' autocomplete='name'>";
+
+    var credential = new PasswordCredential(f);
+    assert_equals(credential.id, 'musterman');
+    assert_equals(credential.name, 'friendly name');
+    assert_equals(credential.iconURL, 'https://example.com/photo');
+    assert_equals(credential.idName, 'theId');
+    assert_equals(credential.passwordName, 'thePassword');
+    assert_equals(credential.type, 'password');
+
+    assert_equals(credential.additionalData.get('theId'), 'musterman'); 
+    assert_equals(credential.additionalData.get('thePassword'), 'sekrit'); 
+    assert_equals(credential.additionalData.get('theIcon'), 'https://example.com/photo'); 
+    assert_equals(credential.additionalData.get('theName'), 'friendly name'); 
+    assert_equals(credential.additionalData.get('theExtraField'), 'extra'); 
+
+    var password = f.querySelector('[name=thePassword]');
+    password.value = "";
+    assert_throws(new TypeError(), _ => new PasswordCredential(f));
+    f.removeChild(password);
+    assert_throws(new TypeError(), _ => new PasswordCredential(f));
+
+    // Reset the password, do the same test for the ID.
+    f.appendChild(password);
+    password.value = "sekrit";
+    credential = new PasswordCredential(f);
+    assert_true(credential instanceof PasswordCredential);
+
+    var id = f.querySelector('[name=theId]');
+    id.value = "";
+    assert_throws(new TypeError(), _ => new PasswordCredential(f));
+    f.removeChild(id);
+    assert_throws(new TypeError(), _ => new PasswordCredential(f));
+}, 'PasswordCredential creation from `HTMLFormElement`');
 </script>