Abstract: Testing a broken point in a web application automatic test case is performed by a system that includes a recording module configured to, when the test case runs, for a step in the test case, record a web page output corresponding to the step, and information of an element manipulated by the step. The web page output has an annotation for identifying the web page output. The system also includes a rendering engine module configured to, after the web application has been updated, for the recorded step, render a web page output of the updated web page with the same annotation. The system also includes a detecting module configured to detect whether the rendered web page output of the updated web page contains the element manipulated by the recorded step, and determine the step as a broken point when the rendered web page output does not contain the element.