Simplified the tests after removing throttle from the EditorUI#update…

… event.

tests/toolbar/block/blocktoolbar.js

@@ -211,27 +211,18 @@ describe( 'BlockToolbar', () => {
 
 			setData( editor.model, '<foo>foo[]bar</foo>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			expect( blockToolbar.buttonView.isVisible ).to.be.true;
 		} );
 
 		it( 'should display the button when the first selected block is an object', () => {
 			setData( editor.model, '[<image src="foo.jpg"><caption>foo</caption></image>]' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			expect( blockToolbar.buttonView.isVisible ).to.be.true;
 		} );
 
 		it( 'should display the button when the selection is inside the object', () => {
 			setData( editor.model, '<image src="foo.jpg"><caption>f[]oo</caption></image>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			expect( blockToolbar.buttonView.isVisible ).to.be.true;
 		} );
 
@@ -240,9 +231,6 @@ describe( 'BlockToolbar', () => {
 
 			setData( editor.model, '<paragraph>foo</paragraph>[]<paragraph>bar</paragraph>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			expect( blockToolbar.buttonView.isVisible ).to.be.false;
 		} );
 
@@ -259,9 +247,6 @@ describe( 'BlockToolbar', () => {
 
 				setData( editor.model, '[<image src="foo.jpg"></image>]' );
 
-				// "Flush" throttled event.
-				editor.ui.fire( 'update' );
-
 				expect( blockToolbar.buttonView.isVisible ).to.be.false;
 
 				element.remove();
@@ -282,9 +267,6 @@ describe( 'BlockToolbar', () => {
 			'of the selected block #1', () => {
 			setData( editor.model, '<paragraph>foo[]bar</paragraph>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			const target = editor.ui.view.editableElement.querySelector( 'p' );
 			const styleMock = testUtils.sinon.stub( window, 'getComputedStyle' );
 
@@ -319,9 +301,6 @@ describe( 'BlockToolbar', () => {
 			'of the selected block #2', () => {
 			setData( editor.model, '<paragraph>foo[]bar</paragraph>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			const target = editor.ui.view.editableElement.querySelector( 'p' );
 			const styleMock = testUtils.sinon.stub( window, 'getComputedStyle' );
 
@@ -401,9 +380,6 @@ describe( 'BlockToolbar', () => {
 		it( 'should hide the UI when editor switches to readonly when the panel is not visible', () => {
 			setData( editor.model, '<paragraph>foo[]bar</paragraph>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			blockToolbar.buttonView.isVisible = true;
 			blockToolbar.panelView.isVisible = false;
 
@@ -416,9 +392,6 @@ describe( 'BlockToolbar', () => {
 		it( 'should not hide button when the editor switches to readonly when the panel is visible', () => {
 			setData( editor.model, '<paragraph>foo[]bar</paragraph>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			blockToolbar.buttonView.isVisible = true;
 			blockToolbar.panelView.isVisible = true;
 
@@ -436,18 +409,12 @@ describe( 'BlockToolbar', () => {
 			// Place the selection outside of any block because the toolbar will not be shown in this case.
 			setData( editor.model, '[]<paragraph>bar</paragraph>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			window.dispatchEvent( new Event( 'resize' ) );
 
 			sinon.assert.notCalled( spy );
 
 			setData( editor.model, '<paragraph>ba[]r</paragraph>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			spy.resetHistory();
 
 			window.dispatchEvent( new Event( 'resize' ) );
@@ -456,9 +423,6 @@ describe( 'BlockToolbar', () => {
 
 			setData( editor.model, '[]<paragraph>bar</paragraph>' );
 
-			// "Flush" throttled event.
-			editor.ui.fire( 'update' );
-
 			spy.resetHistory();
 
 			window.dispatchEvent( new Event( 'resize' ) );