What to check when testing controllers in Spring - spring

I am testing controllers in simple Sprinng application using MockMvc. It is first time I am trying to do testing. Based on resources I found, I am successfully running my tests, but I am not sure about what to check on responses. My controllers only return name of views to be rendered:
index page (contains menu bar and welcome text), product page (contains menu bar and empty table of products) and about page (again menu bar and some info about author).
Tests looks like this:
mockMvc.perform(get("/myviews"))
.andExpect(status().isOk())
.andExpect(view().name("myviewsnames"))
.andExpect(forwardedUrl("/WEB-INF/jsp/myviewsjsps.jsp"));
But based on MockMvcResultMatchers documentation https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/test/web/servlet/result/MockMvcResultMatchers.html
I see a lot of other options for matching. What else, and why, should I check in my tests? Thank you.

Actually MockMvc is a great way to test RESTful web services, you can test your responses based on their headers, status code and response body. In the case of your use case you can test your view name based on some request criteria if any exist.

Related

How do you test response contains string in Inertia unit tests?

I am using Inertia and would like to run some tests to check whether the response contains a certain string.
->assertInertia(
fn (AssertableInertia $page) => $page->component('UsersPage')->has('profile')->dd('profile.0.buttons')
);
so the above works and i can dump the profile.0.buttons and see the string i want to check for, but how do i automatically test that this string exists? normal unit tests, i'd use assertSee. whereContains also doesn't work.
I think that Inertia page about testing has done a great job in summing the testing option for Laravel/Inertia.
Endpoint tests (assertInertia) are feature tests, and you can use them to check if a controller is sending the right components and data to Inertia.
Your question is going more in the direction of "Client-side unit tests" e.g. Jest, where you can send some data to React/Vue component and see how that data has been rendered.
There are "End-to-end tests": Cypress is great but lacks nice integration with setting up Laravel enviroment and seeders in test.
That leave us with Laravel Dusk. I love this tool because it give us best of both worlds (backend and frontend).
You can set up your test with seeders or Model factories, and in the same test you can fire up virtual browser and see how Inertia rendered page. Best thing is that you can use helpers for typing and clicking so you can realy test your app and how it behaves.

Common asserts in any automation project

Can anyone briefly explain what are the common asserts to consider in any automation project please. Whether it might be an in-house or public web application. For example presently i am using selenium (java) to automate an eCommerce web application. As this is my first website to automate, i am running out of ideas where i can verify things expect few which i know mentioned below:
1.Verify each page Title
2.Verify a button, text, link, image, custom text etc
Apart from these is there any thing else i can verify? please feel free to correct my question and if you have worked on various automation projects which areas did you add asserts to verify or validate something on a webpage.
basically, you do automation to decrease the execution time of regression cycles by automating the Test Cases relate to the functionality of the application. so, first develop test cases, using test design techniques like ECP, BVA etc.
Each test case must have an Assertion called expected result or functionality (otherwise it won't be called a Test case).
This assertion can be anything like,
Whether login successful after giving valid credentials
Showing an error message after entering wrong credentials etc.
Selenium helps us to automate web interactions (navigations, clicks, enter texts etc.) and don't perform any assertions for you.
Assertions are available by frameworks like JUnit, TestNG (in Java) with Assertions class. There is built-in support from programming languages like assert keyword in python & Java (http://docs.oracle.com/javase/7/docs/technotes/guides/language/assert.html)
So, whatever you mentioned in your question like common assertions (Verify each page Title etc.), those are just web interactions. they don't decide whether a Test is PASS or FAIL. It is you who define the criteria whether a Test is PASS/FAIL.
For example, there is a test case related to successful login.
here, you automate web interactions like navigate to login page, enter credentials, click Submit button.
Then to validate whether you successfully logged in or not, you look for a web element in the Home Page of the user logged in (like, welcome user) in normal scenario. In Automation, you try to find the text welcome user using webelement. Then you use Assertions provided by frameworks, to assert whether the expected message is present in the webpage like
Assertions.assertEqual(expected_message, actual_message); // just an example.
If expected_message and actual_message is same, then the method don't throw any exception, which results in marking the testcase as PASS by the framework
If expected_message and actual_message is NOT same, then AssertionError is raised by the method assertEqual, which results in marking the test case as FAIL by the framework.

Is there any way to start with a POST request using Selenide

I'm trying to start a Selenide test with a POST request to my application.
Instead of a simple open(/startpoint)
I would like to do something like open(/startpoint, stuff=foo,stuff2=bar)
Is there any way to do that?
I'm asking this because the original page which posts to this start point depends on external providers that are often offline (development environment) and so will often fail too early (and are not the subject of the test)
No, Selenium doesn't have the ability to do a POST request, unless you loaded a dummy HTML page with a <form> tag on it (as a unit test) and a submit button (such as src/test/resources/FormPage.html). So, the alternative is to build a HTTP post query from scratch using Apache HttpUtils library. I usually use the latter method (as an integration test), although the former would work I think.

Testing request after request jmeter

I have a quick question I have a simple web application composed of cars a user is able to select the car and then is displayed his choice. The application is a dynamic web application built in eclipse.
So I am testing my web application using jmeter.
Firstly the user searches for a car ..... this works in jmeter
The result page has a checkbox with select car, the user checks the box and the cars are selected... this does not work.
THe thing is after the user selects the cars his selection is shown the thing is how do I test generate proper Http request for this because the each of these request share data amongst each other and cannot be tested indvidaully. I am using a simple controller in jmetter and I have grouped these http requests
So it looks like this
Simple Controller
Search Cars (Get Method ) ... Works
Search Results .. works
Select Car (Get Method)... Does not wrok
Selected Cars ... Does not work
I am new to jmeter
Kindly go though the below link, it will help you to record and replay the scenarios using Jmeter
http://jmeter.apache.org/usermanual/jmeter_proxy_step_by_step.pdf
first you can record the scenario
second apply correlation where ever required
group the scenarios together using controllers (simple/transaction... etc.)
re-run the script
Hope this will help

How do you figure out what test will best represent the feature you want to create?

Test driven development on wikipedia says first develop a test that will fail because the feature does not exist. Then build the code to pass the test. What does this test look like?
How do you figure out what test will best represent the feature you want to create?
Can someone give an example?
Like if I make a logout button feature to a web application then would the test be hitting the page looking for the button? or what?
I heard test driven is nice for regression testing, I just don't know how to start integrating it with my work.
Well obviously there are areas that are more suited for TDD than others, and running frontend development is one of the areas that I find difficult to do TDD on. But you can.
You can use WATIN or WebAii to do that kind of test. You could then:
Write a test that checks if a button exists on the page ... fail it, then implement it, and pass
Write a test that clicks the button, and checks for something to change on the frontend, fail it, implement feature and pass the test.
But normally you would test the logic behind the actions that you do. You would test the logout functionality on your authenticationservice, that is called by your eventhandler in webforms, or the controller actions in MVC.
What does this test look like?
A test has 3 parts.
it sets up a context
it performs an action
it makes an assertion that the action did what it was supposed to do
How do you figure out what test will best represent the feature you want to create?
Tests are not based on features (unless you are talking about a high level framework like cucumber), they are based on "units" of code. Typically a unit is a function, and you will write multiple tests to assert all possible behaviors of that function are working correctly.
Can someone give an example?
It really varies based on the framework you use. Personally, my favorite is shoulda, which is an extension to the ruby Test::Unit framework
Here is a shoulda example from the readme. In the case of a BDD framework like this, contextual setup happens in its own block
class UserTest < Test::Unit::TestCase
context "A User instance" do
setup do
#user = User.find(:first)
end
should "return its full name" do
assert_equal 'John Doe', #user.full_name
end
context "with a profile" do
setup do
#user.profile = Profile.find(:first)
end
should "return true when sent #has_profile?" do
assert #user.has_profile?
end
end
end
end
Like if I make a logout button feature to a web application then would the test be hitting the page looking for the button? or what?
There are 3 main types of tests.
First you have unit tests (which is what people usually assume you are talking about when you talk about TDD testing). A unit test tests a single unit of work and nothing else. This means that if your method usually hits a database, you make sure that it doesn't actually hit that database for the duration of the test (using a technique called "mocking").
Next, you have integration tests. An integration test usually involves interaction with the infrastructure, and are more "full stack" testing. So from your top level API, if you have an insert method, you would go through the full insert, and then test the resulting data in the database. Because there is more setup in these sorts of tests, they shouldn't really be run from developer machines (it is better to automate these on your build server)
Finally, you have UI testing. This is the most unreliable, and requires a UI scripting framework like Selenium or Waitr to automate clicking around your UI. Don't go crazy with this sort of testing, because these tests are notoriously fragile (a small change can break them), and they wont catch whole classes of issues anyways (like styling).
the unit test would be calling the logout function and verifying that the expected results occurred (user login record ended, for example)
clicking the logout button would be more like an acceptance test - which is also a good thing to do, and (in my opinion) well within the scope of TDD, but it tests TWO features: the button, and the resulting action
It depends on what platform you are using as to how your tests would appear. TDD is much harder in ASP.NET WebForms than ASP.NET MVC because it's very difficult to mock up the HTTP environment in WebForms to get the expected state of Session, Application, ViewState etc. as opposed to ASP.NET MVC.
A typical test is built around Arrange Act Assert.
// Arrange
... setup needed elements for this atomic test
// Act
... set values and/or call methods
// Assert
... test a single expected outcome
It's very difficult to give deeper examples unless you let us know the platform you plan to code with. Please give us more information.
Say I want to make a function that will add one to a number (really simple example).
First off, write a test that says f(10) == 11, then do one that says f(10) != 10. Then write a function that passes those tests. If you realise the function needs more capabilities, add more tests.
The test would be making sure that when the logout function was executed, the user was successfully logged out. Generally a unit testing framework such as NUnit or MSTest (for .Net stuff) would be used.
Web applications are notoriously hard to unit test because of all the contextual information generally required for the execution of server code on a web server. However, a typical example would mock up that information and call the logout logic, and then verify that the correct result was returned. A loose example is an MVC type test using NUnit and Moq:
[Test]
public void LogoutActionShouldLogTheUserOut()
{
var mockController = new Mock<HomeController>() { CallBase = true };
var result = mockController.Object.Logout() as ViewResult;
Assert.That(result.ViewName == "LogoutSuccess",
"Logout function did not return logout view!");
}
This is a loose example because really it's just testing that the "LogoutSuccess" view was returned, and not that any logout logic was executed. In a real test I would mock an HttpContext and ensure the session was cleared or whatever, but I just copied this ;)
Unit tests would not be testing that a UI element was properly wired up to an event handler. If you wanted to ensure that the whole application was working from top to bottom, this would be called integration testing, and you would use something besides unit tests for this. Tools such as Selenium are commonly used for web integration tests, whereas macro recording programs are often used for desktop applications.

Resources