Examples with ExecutionCanceler com.vaadin.flow.component.page.Page.ExecutionCanceler used on opensource projects

Example 1 with ExecutionCanceler

use of com.vaadin.flow.component.page.Page.ExecutionCanceler in project flow by vaadin.

the class PageTest method executeJavaScript_delegatesToExecJs.

@Test
public void executeJavaScript_delegatesToExecJs() {
    AtomicReference<String> invokedExpression = new AtomicReference<>();
    AtomicReference<Serializable[]> invokedParams = new AtomicReference<>();
    Page page = new Page(new MockUI()) {

        @Override
        public PendingJavaScriptResult executeJs(String expression, Serializable... parameters) {
            String oldExpression = invokedExpression.getAndSet(expression);
            Assert.assertNull("There should be no old expression", oldExpression);
            Serializable[] oldParams = invokedParams.getAndSet(parameters);
            Assert.assertNull("There should be no old params", oldParams);
            return null;
        }
    };
    ExecutionCanceler executionCanceler = page.executeJavaScript("foo", 1, true);
    Assert.assertNull(executionCanceler);
    Assert.assertEquals("foo", invokedExpression.get());
    Assert.assertEquals(Integer.valueOf(1), invokedParams.get()[0]);
    Assert.assertEquals(Boolean.TRUE, invokedParams.get()[1]);
}