fixes tests for invalid links

The invalid link tests were still expecting the link-parsing to be
performed during the validation function, but that responsibility was
moved to QuillJS. This commit adjusts the tests to look for the new
class.

:warning: This means we don't have any actual tests for link validation
in our custom link class.

lib/validators/built-in/invalid-links.test.js

@@ -44,70 +44,10 @@ describe('validators: invalid-links', () => {
       })).toEqual([]);
     });
 
-    test('passes if field with hash link', () => {
+    test('fails if link class="kiln-link-invalid"', () => {
       expect(fn({
         components: {
-          [uri]: { a: '<a href="#my-anchor-link">Lorem ipsum dolor sit amet</a>, consectetur adipisicing elit' }
-        },
-        schemas: {
-          [name]: {
-            a: {
-              _has: ['text']
-            }
-          }
-        }
-      })).toEqual([]);
-    });
-
-    test('passes if field with mailto link', () => {
-      expect(fn({
-        components: {
-          [uri]: { a: '<a href="mailto:[email protected]">Lorem ipsum dolor sit amet</a>, consectetur adipisicing elit' }
-        },
-        schemas: {
-          [name]: {
-            a: {
-              _has: ['text']
-            }
-          }
-        }
-      })).toEqual([]);
-    });
-
-    test('passes if field with ftp link', () => {
-      expect(fn({
-        components: {
-          [uri]: { a: '<a href="ftp://1.1.1.1:21/test">Lorem ipsum dolor sit amet</a>, consectetur adipisicing elit' }
-        },
-        schemas: {
-          [name]: {
-            a: {
-              _has: ['text']
-            }
-          }
-        }
-      })).toEqual([]);
-    });
-
-    test('passes if field with relative link', () => {
-      expect(fn({
-        components: {
-          [uri]: { a: '<a href="/subscribe">Lorem ipsum dolor sit amet</a>, consectetur adipisicing elit' }
-        },
-        schemas: {
-          [name]: {
-            a: {
-              _has: ['text']
-            }
-          }
-        }
-      })).toEqual([]);
-    });
-
-    test('fails if space in mailto', () => {
-      expect(fn({
-        components: {
-          [uri]: { a: '<a href="mailto: [email protected]">Lorem ipsum dolor sit amet</a>, consectetur adipisicing elit' }
+          [uri]: { a: '<a href="invalid" class="kiln-link-invalid">Lorem ipsum dolor sit amet</a>, consectetur adipisicing elit' }
         },
         schemas: {
           [name]: {
@@ -123,31 +63,10 @@ describe('validators: invalid-links', () => {
         preview: 'Lorem ipsum dolor sit amet…'
       }]);
     });
-
-    test('fails if field with invalid link', () => {
-      expect(fn({
-        components: {
-          [uri]: { a: '<a href="http://one two three">Lorem ipsum dolor sit amet</a>, consectetur adipisicing elit' }
-        },
-        schemas: {
-          [name]: {
-            a: {
-              _has: ['text']
-            }
-          }
-        }
-      })).toEqual([{
-        uri,
-        field: 'a',
-        location: 'Paragraph',
-        preview: 'Lorem ipsum dolor sit amet…'
-      }]);
-    });
-
     test('fails if mixed valid/invalid links', () => {
       expect(fn({
         components: {
-          [uri]: { a: '<a href="http://example.com">valid</a>, consectetur <a href="http://example com">invalid</a>' }
+          [uri]: { a: '<a href="">valid</a>, consectetur <a href="" class="kiln-link-invalid">invalid</a>' }
         },
         schemas: {
           [name]: {
@@ -167,7 +86,7 @@ describe('validators: invalid-links', () => {
     test('fails if multiple invalid links', () => {
       expect(fn({
         components: {
-          [uri]: { a: '<a href="http://bad one">one</a>, consectetur <a href="http://bad two">two</a>' }
+          [uri]: { a: '<a href="" class="kiln-link-invalid">one</a>, consectetur <a href="" class="kiln-link-invalid">two</a>' }
         },
         schemas: {
           [name]: {