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kotlinlang

Is it possible add custom error message when tests are failed ?

Currently not - error message is derived from test name ATM.
Please present a concrete example where this could be helpfull - tell me what you see now and what exactly you would like to be displayed?

<@U16NLGHQ8>
```@Test
fun `no Composable function should use 'Preview' annotation`() {
    Konsist
        .scopeFromProduction("app")
        .files
        .assertNot {
            it.containsFunction { function -&gt;
                function.hasAnnotationOf&lt;Preview&gt;()
            }
        }
}```
Suppose on test fail we will get the error something like below :
`Assert 'no Composable function should use 'Preview' annotation' has failed. Invalid files (1):`
`/Users/swapnilmusale/StudioProjects/XXX/app/src/main/java/com/devx/XXX/ui/home/HomeScreen.kt (HomeScreen FileDeclaration)`

Here I wanted to provide more info on test fail case :-
Please use `@ThemedPreview` annotation instead of `@Preview` annotation.

Also don't want to include all these info in test name which can be get expanded to more lengthy.

Hope you will consider this case as valid and provide a way to accomplish the same.

Sounds reasonable
I am thinking about

```.assertNot("Custom message") {
    ...
}```
Any thoughts?

I will try to include this in the next release

Now
```Assert 'no Composable function should use 'Preview' annotation' has failed. Invalid files (1):
/Users/swapnilmusale/StudioProjects/XXX/app/src/main/java/com/devx/XXX/ui/home/HomeScreen.kt (HomeScreen FileDeclaration)```
Proposal
```Assert 'no Composable function should use 'Preview' annotation' has failed. 
CUSTOM ASSERT MESSAGE
Invalid files (1):
/Users/swapnilmusale/StudioProjects/XXX/app/src/main/java/com/devx/XXX/ui/home/HomeScreen.kt (HomeScreen FileDeclaration)```

PR was merged - this feature will be part of the next version. Release is targeted for latter this week
<https://github.com/LemonAppDev/konsist/pull/495>