text: import isContentHidden from '../isContentHidden';
  
  window.getComputedStyle = element => ({
      getPropertyValue: property => element.style[property],
  });
  
  describe('isContentHidden', () => {
      it('should return true when the element has zero size and does not has content', () => {
          const element = {
              offsetWidth: 0,
              offsetHeight: 0,
              innerHTML: null,
          };
          expect(isContentHidden(element)).toBe(true);
      });
      it('should return true when the element has zero size and content, but overflow style is other than visible', () => {
          const element = {
              offsetWidth: 0,
              offsetHeight: 0,
              innerHTML: 'some content',
              style: {
                  overflow: 'hidden',
              },
          };
          expect(isContentHidden(element)).toBe(true);
      });
      it('should return false when the element has zero size and content, but overflow style is visible', () => {
          const element = {
              offsetWidth: 0,
              offsetHeight: 0,
              innerHTML: 'some content',
              style: {
                  overflow: 'visible',
              },
          };
          expect(isContentHidden(element)).toBe(false);
      });
      it('should return false when the element has not zero size, but display style is other than none', () => {
          const element = {
              offsetWidth: 10,
              style: {
                  display: 'block',
              },
          };
          expect(isContentHidden(element)).toBe(false);
      });
      it('should return true when the element has not zero size, but display style is none', () => {
          const element = {
              offsetWidth: 0,
              offsetHeight: 10,
              style: {
                  display: 'none',
              },
          };
          expect(isContentHidden(element)).toBe(true);
      });
  });
  