Update Cypress test to cover "Intelligent scissors blocking feature". (#3570)

* Update Cypress test. Cover "Intelligent scissors blocking feature".

* Apply comments

tests/cypress/integration/actions_tasks2/case_101_opencv_basic_actions.js

@@ -73,6 +73,8 @@ context('OpenCV. Intelligent cissors. Histogram Equalization.', () => {
             cy.get('.cvat_canvas_interact_intermediate_shape').then((intermediateShape) => {
                 // Get count of points
                 const intermediateShapeNumberPointsBeforeChange = intermediateShape.attr('points').split(' ').length;
+                // expected 7 to be above 5
+                expect(intermediateShapeNumberPointsBeforeChange).to.be.gt(pointsMap.length);
                 // Change number of points
                 cy.get('.cvat-approx-poly-threshold-wrapper')
                     .find('[role="slider"]')
@@ -93,6 +95,25 @@ context('OpenCV. Intelligent cissors. Histogram Equalization.', () => {
             cy.get('.cvat_canvas_shape').should('have.length', 2);
         });
 
+        it('Check "Intelligent scissors blocking feature". Cancel drawing.', () => {
+            openOpencvControlPopover();
+            cy.get('.cvat-opencv-drawing-tool').click();
+            cy.contains('span', 'Block').click();
+            cy.get('.cvat_canvas_threshold').should('not.exist');
+            pointsMap.forEach((element) => {
+                cy.get('.cvat-canvas-container').click(element.x, element.y);
+            });
+            cy.get('.cvat_canvas_interact_intermediate_shape').then((intermediateShape) => {
+                // Get count of points
+                const intermediateShapeNumberPoints = intermediateShape.attr('points').split(' ').length;
+                // The last point on the crosshair
+                expect(intermediateShapeNumberPoints - 1).to.be.equal(pointsMap.length)
+            });
+            cy.get('body').type('{Ctrl}'); // Checking hotkey
+            cy.get('.cvat_canvas_threshold').should('exist');
+            cy.get('body').type('{Esc}'); // Cancel drawing
+        });
+
         it('Check "Histogram Equalization" feature.', () => {
             openOpencvControlPopover();
             cy.get('.cvat-opencv-control-popover-visible').contains('[role="tab"]', 'Image').click();