Odnośnie szczegółów dotyczących ostrzeżeń, znany jest problem. można uzyskać szczegółowe here
executeScript
public java.lang.Object executeScript(java.lang.String script,
java.lang.Object... args)
Description copied from interface: JavascriptExecutor Executes JavaScript in the context of the currently selected frame or window. The script fragment provided will be executed as the body of an anonymous function. Within the script, use document to refer to the current document. Note that local variables will not be available once the script has finished executing, though global variables will persist. If the script has a return value (i.e. if the script contains a return statement), then the following steps will be taken:
- For an HTML element, this method returns a WebElement
- For a decimal, a Double is returned
- For a non-decimal number, a Long is returned
- For a boolean, a Boolean is returned
- For all other cases, a String is returned.
- For an array, return a List with each object following the rules above. We support nested lists.
- Unless the value is null or there is no return value, in which null is returned
Arguments must be a number, a boolean, a String, WebElement, or a List of any combination of the above. An exception will be thrown if the arguments do not meet these criteria. The arguments will be made available to the JavaScript via the "arguments" magic variable, as if the function were called via "Function.apply"
Specified by: executeScript in interface JavascriptExecutor Parameters: script - The JavaScript to execute args - The arguments to the script. May be empty Returns: One of Boolean, Long, String, List or WebElement. Or null.
executeAsyncScript
public java.lang.Object executeAsyncScript(java.lang.String script,
java.lang.Object... args)
Description copied from interface: JavascriptExecutor Execute an asynchronous piece of JavaScript in the context of the currently selected frame or window. Unlike executing synchronous JavaScript, scripts executed with this method must explicitly signal they are finished by invoking the provided callback. This callback is always injected into the executed function as the last argument. The first argument passed to the callback function will be used as the script's result. This value will be handled in the same way as the synchronous case.
Example #1: Performing a sleep in the browser under test.
long start = System.currentTimeMillis();
((JavascriptExecutor) driver).executeAsyncScript(
"window.setTimeout(arguments[arguments.length - 1], 500);");
System.out.println(
"Elapsed time: " + (System.currentTimeMillis() - start));
Example #2: Synchronizing a test with an AJAX application:
WebElement composeButton = driver.findElement(By.id("compose-button"));
composeButton.click();
((JavascriptExecutor) driver).executeAsyncScript(
"var callback = arguments[arguments.length - 1];" +
"mailClient.getComposeWindowWidget().onload(callback);");
driver.switchTo().frame("composeWidget");
driver.findElement(By.id("to")).sendKeys("[email protected]");
Example #3: Injecting a XMLHttpRequest and waiting for the result:
Object response = ((JavascriptExecutor) driver).executeAsyncScript(
"var callback = arguments[arguments.length - 1];" +
"var xhr = new XMLHttpRequest();" +
"xhr.open('GET', '/resource/data.json', true);" +
"xhr.onreadystatechange = function() {" +
" if (xhr.readyState == 4) {" +
" callback(xhr.responseText);" +
" }" +
"}" +
"xhr.send();");
JSONObject json = new JSONObject((String) response);
assertEquals("cheese", json.getString("food"));
Script arguments must be a number, a boolean, a String, WebElement, or a List of any combination of the above. An exception will be thrown if the arguments do not meet these criteria. The arguments will be made available to the JavaScript via the "arguments" variable.
Specified by: executeAsyncScript in interface JavascriptExecutor Parameters: script - The JavaScript to execute. args - The arguments to the script. May be empty. Returns: One of Boolean, Long, String, List, WebElement, or null.
Główna różnica między nimi polega na tym, że skrypty wykonywane z asynchronicznie muszą jawnie sygnalizować, że są zakończone przez wywołanie dostarczonego wywołania zwrotnego. To wywołanie zwrotne jest zawsze wprowadzane do wykonanej funkcji jako ostatni argument. – sphair
Dzięki za opinie! – vispart
@sphair powinieneś był złożyć odpowiedź, jej zwięzłe i poprawne, przesiewanie niektórych śmieci poniżej było trudne. – Pykler