testGetVendorStyleNameIE() {
    const mockElement = {'style': {'msTransformOrigin': ''}};

    assertUserAgent([UserAgents.IE], 'MSIE');
    assertEquals(
        '-ms-transform-origin',
        googStyle.getVendorStyleName_(mockElement, 'transform-origin'));
  }
Test for the proper vendor style name for a CSS property
with a vendor prefix for IE.
@suppress {visibility,checkTypes} suppression added to enable type checking