Hello. Are there any examples of using `MockEngine` to test a POST request? I'm following the examp...

# ktor

[curioustechizen]

Hello. Are there any examples of using MockEngine to test a POST request?

I'm following the example here (except I'm using testScope.runTest to execute the test). However it looks like my request is never executed. If I inspect mockEngine.requestHistory immediately after performing the POST I see it is empty.

[Aleksei Tirman [JB]]

Can you share the code of the test?

[curioustechizen]

I did some more digging and found the issue. But I haven't found a solution yet. The issue is not in Ktor - it is in the way I use coroutineScopes.

[curioustechizen]

My code under test is of the form applicationScope.launch { <http://httpClient.post|httpClient.post>() }
Where applicationScope is a separate CoroutineScope that I inject into the class under test. The objective of this is to continue executing the HTTP request even if the calling scope is cancelled (for example even if the user moves away to a different screen)

But I'm also executing the test inside a TestScope provided by kotlin coroutines test library. So looks like both of them are in the same scope and that ends in the parent scope being cancelled.

[curioustechizen]

If I comment out the applicationScope.launch part and directly run my http request in the scope of the calling function, I see some Ktor logs so at least the request is happening.