The name of the function is not the best as you proved In ca

Question

The name of the function is not the best as you proved In case someone has a better name then please share your idea

jdornieden · Answer

If I understand this function correctly it s only needed to handle nulls when using assertion creator lambdas Instead of renaming What do you think about adding a toBeNull and extend expectLambda to accept Expect lt T gt Null wouldn t be a special case anymore and you could just use ` expect calling myNullableFun with ` ` mapOf ` `Int MIN VALUE to expectLambda lt String gt contains min ` ` 1 to expectLambda toBeNull ` `0 to expectLambda toBeNull ` `1 to expectLambda toBe 1 ` `2 to expectLambda endsWith 2 ` `Int MAX VALUE to expectLambda toBe max ` ` forEach arg assertionCreatorOrNull gt ` ` feature f myNullableFun arg ` ` ` ` `

robstoll · Answer

As info you can already use `toBe null ` How are you going to use the assertionCreatorOrNull in your example you missed to show it Actually `expectLambda` should already accept `T` without any upper bound which is the same as `T Any ` If that s not the case then we should fix it

jdornieden · Answer

Yeah you re right That was a copy amp paste error ```expect calling myNullableFun with mapOf Int MIN VALUE to expectLambda lt String gt contains min 1 to expectLambda toBeNull 0 to expectLambda toBeNull 1 to expectLambda toBe 1 2 to expectLambda endsWith 2 Int MAX VALUE to expectLambda toBe max forEach arg assertionCreator gt feature f myNullableFun arg assertionCreator ``` Basically I wondered if it is necessary to have a special treatment for null or if it was possible to combine the two Data Driven Testing examples Readme into one simpler example

jdornieden · Answer

The current signature of expectLambda is fun lt T gt expectLambda noinline assertionCreator Expect lt T gt gt Unit so it s not possible to use it with nullable types at the moment I think the same applies to toBe

robstoll · Answer

It is `T` means `T Any ` you should be able to write ``` expectLambda lt Int gt toBe null ``` No

jdornieden · Answer

Yes you are right I forget to change the type to String in the example face with rolling eyes Here is the already working example ```expect calling myNullableFun with mapOf Int MIN VALUE to expectLambda lt String gt notToBeNull contains min 1 to expectLambda toBe null 0 to expectLambda toBe null 1 to expectLambda toBe 1 2 to expectLambda notToBeNull endsWith 2 Int MAX VALUE to expectLambda toBe max forEach arg assertionCreator gt feature f myNullableFun arg assertionCreator ```