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@@ -173,6 +173,46 @@ describe( 'WidgetResize', () => {
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expect( plugin._mouseDownListener.callCount ).to.be.equal( 0 );
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} );
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+ it( 'nothing bad happens if activeResizer got unset', async () => {
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+ const resizerOptions = {
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+ unit: 'px',
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+
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+ modelElement: widgetModel,
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+ viewElement: widget,
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+ editor,
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+
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+ getHandleHost( domWidgetElement ) {
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+ return domWidgetElement;
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+ },
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+
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+ getResizeHost( domWidgetElement ) {
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+ return domWidgetElement;
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+ },
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+
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+ onCommit: sinon.stub()
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+ };
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+
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+ const resizer = editor.plugins.get( WidgetResize ).attachTo( resizerOptions );
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+ // ----------
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+ focusEditor( editor );
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+ resizer.redraw(); // @todo this shouldn't be necessary.
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+
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+ const usedResizer = 'top-right';
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+ const domParts = getWidgetDomParts( widget, usedResizer );
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+ const initialPointerPosition = getElementCenterPoint( domParts.widget, usedResizer );
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+
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+ const plugin = editor.plugins.get( WidgetResize );
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+ // resizer._activeResizer = null;
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+ plugin._getResizerByHandle = sinon.stub().returns( null );
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+
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+ mouseMock.down( editor, domParts.resizeHandle );
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+
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+ await wait( 40 );
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+
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+ mouseMock.move( editor, domParts.resizeHandle, initialPointerPosition );
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+ mouseMock.up();
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+ } );
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+
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describe( '_proposeNewSize()', () => {
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let resizer, resizerOptions;
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