Fix test.

Author: Joen Asmussen

editor/components/default-block-appender/test/__snapshots__/index.js.snap

@@ -10,7 +10,7 @@ exports[`DefaultBlockAppender blocks present should match snapshot 1`] = `
 
 exports[`DefaultBlockAppender no block present should match snapshot 1`] = `
 <div
-  className="editor-default-block-appender is-visible-placeholder"
+  className="editor-default-block-appender"
 >
   <Connect(WrappedComponent) />
   <input

editor/components/default-block-appender/test/index.js

@@ -52,7 +52,7 @@ describe( 'DefaultBlockAppender', () => {
 			const insertBlock = jest.fn();
 			const wrapper = shallow( <DefaultBlockAppender count={ 5 } blocks={ [ { name: 'core/image' } ] } appendDefaultBlock={ insertBlock } /> );
 
-			wrapper.find( 'button.editor-default-block-appender__content' ).simulate( 'click' );
+			wrapper.find( 'input.editor-default-block-appender__content' ).simulate( 'click' );
 
 			expectAppendDefaultBlockCalled( insertBlock );
 		} );