Does anyone know how to show a custom failure message in ScalaTest?
For example:
NumberOfElements() should equal (5)
Shows the following message when it fails:
10 did not equal 5
But i want more descriptive message like:
NumberOfElements should be 5.
You can also use withClue without importing anything or adding it to the test class:
withClue(s"Expecting distinct elements: ${elements.toList}") { elements.length shouldBe 3 }
This is imported from Assertions class: org.scalatest.Assertions#withClue