How to use

FilterSelectorFunction

in

io.github.seleniumquery.functions.jquery.traversing.filtering.filterfunction

public SeleniumQueryObject filterSelector(SeleniumQueryObject seleniumQueryObject, String selector) {
  return new FilterSelectorFunction().filter(seleniumQueryObject, selector);
}

  @Override
  public SeleniumQueryObject apply(SeleniumQueryObject targetSQO) {
    return filterSelectorFunction.filter(targetSQO, SELECTOR_DOES_NOT_MATTER_IN_THIS_TEST);
  }
});

public SeleniumQueryObject filter(SeleniumQueryObject seleniumQueryObject, String selector) {
  List<WebElement> filteredWebElements = filterElements(seleniumQueryObject, selector);
  return instance().create(seleniumQueryObject.getSeleniumQueryFunctions(),
      seleniumQueryObject.getWebDriver(),
      new SeleniumQueryInvalidBy(seleniumQueryObject.getBy(), ".filter(\""+selector+"\")"),
      filteredWebElements,
      seleniumQueryObject);
}

@Test
public void filterred_object_should_have_invalidBy_as_by() {
  // given
  SeleniumQueryObject targetSQO = createStubSeleniumQueryObjectWithElements(createWebElementWithTag("doesnt-matter"));
  // when
  SeleniumQueryObject resultSQO = filterSelectorFunction.filter(targetSQO, "div#bob.yes:some-selector");
  // then
  assertThat(resultSQO.getBy(), instanceOf(SeleniumQueryInvalidBy.class));
  assertThat(resultSQO.getBy().toString(), equalTo("$(\"dummy#by\").filter(\"div#bob.yes:some-selector\")") );
}

public SeleniumQueryObject filter(SeleniumQueryObject seleniumQueryObject, String selector) {
  List<WebElement> filteredWebElements = filterElements(seleniumQueryObject, selector);
  return instance().create(seleniumQueryObject.getSeleniumQueryFunctions(),
      seleniumQueryObject.getWebDriver(),
      new SeleniumQueryInvalidBy(seleniumQueryObject.getBy(), ".filter(\""+selector+"\")"),
      filteredWebElements,
      seleniumQueryObject);
}

public SeleniumQueryObject filterSelector(SeleniumQueryObject seleniumQueryObject, String selector) {
  return new FilterSelectorFunction().filter(seleniumQueryObject, selector);
}

@Test
public void null_selector__should_return_EMPTY_element_set() {
  // given
  SeleniumQueryObject targetSQO = createStubSeleniumQueryObjectWithAtLeastOneElement();
  // when
  SeleniumQueryObject resultSQO = filterSelectorFunction.filter(targetSQO, NULL_SELECTOR);
  // then
  assertThat(resultSQO.get(), empty());
}

@Test
public void emptyString_selector__should_return_EMPTY_element_set() {
  // given
  SeleniumQueryObject targetSQO = createStubSeleniumQueryObjectWithAtLeastOneElement();
  // when
  SeleniumQueryObject resultSQO = filterSelectorFunction.filter(targetSQO, "");
  // then
  assertThat(resultSQO.get(), empty());
}

@Test
public void resultSQO_should_onlyKeepElementsThatMatchTheSelector() {
  // given
  WebElement spanOne = createWebElementWithTag("span");
  WebElement notSpan = createWebElementWithTag("div");
  WebElement spanTwo = createWebElementWithTag("span");
  SeleniumQueryObject targetSQO = createStubSeleniumQueryObjectWithElements(spanOne, notSpan, spanTwo);
  // when
  SeleniumQueryObject resultSQO = filterSelectorFunction.filter(targetSQO, "span");
  // then
  assertThat(resultSQO.get(), contains(spanOne, spanTwo));
}