testing - w3toppers.com

Select -> option abstraction

No such thing in Protractor, but we can write our own: select-wrapper.js ‘use strict’; var SelectWrapper = function(selector) { this.webElement = element(selector); }; SelectWrapper.prototype.getOptions = function() { return this.webElement.all(by.tagName(‘option’)); }; SelectWrapper.prototype.getSelectedOptions = function() { return this.webElement.all(by.css(‘option[selected=”selected”]’)); }; SelectWrapper.prototype.selectByValue = function(value) { return this.webElement.all(by.css(‘option[value=”‘ + value + ‘”]’)).click(); }; SelectWrapper.prototype.selectByPartialText = function(text) { return this.webElement.all(by.cssContainingText(‘option’, text)).click(); … Read more

How to run only one unit test class using Gradle

To run a single test class Airborn’s answer is good. With using some command line options, which found here, you can simply do something like this. gradle test –tests org.gradle.SomeTest.someSpecificFeature gradle test –tests *SomeTest.someSpecificFeature gradle test –tests *SomeSpecificTest gradle test –tests all.in.specific.package* gradle test –tests *IntegTest gradle test –tests *IntegTest*ui* gradle test –tests *IntegTest.singleMethod gradle … Read more

Before and After Suite execution hook in jUnit 4.x

Yes, it is possible to reliably run set up and tear down methods before and after any tests in a test suite. Let me demonstrate in code: package com.test; import org.junit.AfterClass; import org.junit.BeforeClass; import org.junit.runner.RunWith; import org.junit.runners.Suite; import org.junit.runners.Suite.SuiteClasses; @RunWith(Suite.class) @SuiteClasses({Test1.class, Test2.class}) public class TestSuite { @BeforeClass public static void setUp() { System.out.println(“setting up”); } … Read more

What is the difference between unit tests and functional tests?

Unit tests tell a developer that the code is doing things right; functional tests tell a developer that the code is doing the right things. You can read more at Unit Testing versus Functional Testing A well explained real-life analogy of unit testing and functional testing can be described as follows, Many times the development … Read more

Final method mocking

From the Mockito FAQ: What are the limitations of Mockito Cannot mock final methods – their real behavior is executed without any exception. Mockito cannot warn you about mocking final methods so be vigilant.

Check if any alert exists using selenium with python

What I do is to set a conditional delay with WebDriverWait just before the point I expect to see the alert, then switch to it, like this: from selenium import webdriver from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC from selenium.common.exceptions import TimeoutException browser = webdriver.Firefox() browser.get(“url”) browser.find_element_by_id(“add_button”).click() try: WebDriverWait(browser, 3).until(EC.alert_is_present(), ‘Timed out … Read more

Switch tabs using Selenium WebDriver with Java

psdbComponent.clickDocumentLink(); ArrayList<String> tabs2 = new ArrayList<String> (driver.getWindowHandles()); driver.switchTo().window(tabs2.get(1)); driver.close(); driver.switchTo().window(tabs2.get(0)); This code perfectly worked for me. Try it out. You always need to switch your driver to new tab, before you want to do something on new tab.

Override Java System.currentTimeMillis for testing time sensitive code

I strongly recommend that instead of messing with the system clock, you bite the bullet and refactor that legacy code to use a replaceable clock. Ideally that should be done with dependency injection, but even if you used a replaceable singleton you would gain testability. This could almost be automated with search and replace for … Read more

How to properly assert that an exception gets raised in pytest?

pytest.raises(Exception) is what you need. Code import pytest def test_passes(): with pytest.raises(Exception) as e_info: x = 1 / 0 def test_passes_without_info(): with pytest.raises(Exception): x = 1 / 0 def test_fails(): with pytest.raises(Exception) as e_info: x = 1 / 1 def test_fails_without_info(): with pytest.raises(Exception): x = 1 / 1 # Don’t do this. Assertions are caught … Read more

How to check whether dynamically attached event listener exists or not?

I did something like that: const element = document.getElementById(‘div’); if (element.getAttribute(‘listener’) !== ‘true’) { element.addEventListener(‘click’, function (e) { const elementClicked = e.target; elementClicked.setAttribute(‘listener’, ‘true’); console.log(‘event has been attached’); }); } Creating a special attribute for an element when the listener is attached and then checking if it exists.