Testing in springboot

[turbid garden]

Hello, i want to test my api-controller using unit tests in junit but i cant seem to understand which is the correct way.

Different approaches:

1. Mock the behaviour of the controller and call the controller-method directly. Asserting using assertequals().

2. Call the endpoint using mockMvc? Asserting using andexpect().

I was thinking that maybe nr2 approach can be covered using api-tests in postman? Can anyone point me in the right direction? 🙂

Thanks in advance!

[torpid blaze]

<@&987246399047479336> please have a look, thanks.

[torpid blaze]

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[glad verge]

My 2cents is, when you want to test controller methods, i think by using mockMvc you have more control on how http request will be constructed and see if is everything working as expected

[rare yew]

I mean, mockMvc is not really a unit test

It's more of an integration test in regards to how it is being set up and ran

A true unit test should be able to isolate the method you are calling

In a mockMvc, you are not only calling the controller class, but also the service class and so on. (this is usually slower since you need to start the entire application context)

You are correct also, postman is a good sub for your second part. It's extremely powerful.

For example

pm.test("Status code is 200", function () {
    pm.response.to.have.status(200);
});

pm.test("Response is correct", function () {
    const responseBody = pm.response.json();
    pm.expect(responseBody).to.have.keys('pdUsers','tcUsers','totalUsers')
});

pm.test("Response time is less than 200ms", function () {
    pm.expect(pm.response.responseTime).to.be.below(200);
});

Is all postman really needs

However, in an integration test via mockMvc, it is more complex and requires more code

However that is not to say mockMvc is useless. When you are using postman, you are executing the code in the real server. This includes sending data into the real database

In mockMvc, you have flexibility, and can simply use an in memory database for test cases

I think it comes down to the project specifics and what exactly you need to test.

also postman uses javascript YUCK