Excheck not showing fixture for failing test cases

Questions / Help
1

Hi,

from Programming Elixir 1.3 under property based testing it seems to show that for failing tests ExCheck will display the fixtures for the failing test cases. Something like

Failed after 1 tests with {‘EXIT’,badarith}
​ Simplified:
​ l =
​
​ Finished in 0.1 seconds
​ 301 tests, 1 failure

But when i tried it myself i do not see that.

  1. test Stats on lists of ints sum equals average times count_property (StatsPropertyTest)
    test/stats_property_test.exs:17
    ** (ExCheck.Error) check failed: {:EXIT, :badarith}
    stacktrace:
    (excheck) lib/excheck.ex:55: ExCheck.check/2
    test/stats_property_test.exs:17: (test)

…

Finished in 0.1 seconds
409 tests, 1 failure

Is it a configuration i have to turn on? Or this feature has been removed? I find this very useful and don’t understand why it should be removed.

2

It is not removed, and it does indeed work, however yours is not an assert failure, yours is a process crash, and you did not check for a process crash. You are having a bad arithmetic error, not an assert error. ^.^