@Test
  public void testPopScriptSwitchCurrentToStandard() {
    StringWriter standard = new StringWriter();
    StringWriter script = new StringWriter();
    RenderContext renderContext = new RenderContextImpl(standard, script);
    renderContext.pushScript();

    renderContext.popScript();

    Appendable actual = renderContext.getCurrent();
    assertSame(standard, actual);
  }
  @Test
  public void testExceptionIsThrownWhenPopScriptMoreThanPush() {
    StringWriter script = new StringWriter();
    RenderContext renderContext = new RenderContextImpl(null, script);

    try {
      renderContext.popScript();
    } catch (Exception e) {
      String expectedMessage = "Script popped too many times";
      this.checkExceptionFull(e, RuntimeException.class, expectedMessage);
    }
  }