CLI: --fail-fast option

Kaocha by default runs all tests it can find, providing a final summary on failures and errors when all tests have finished. With the --fail-fast option the test run will be interrupted as soon as a single failure or error has occured. Afterwards a summary of the test run so far is printed.

Failing fast

• Given a file named "test/my/project/fail_fast_test.clj" with:

(ns my.project.fail-fast-test
  (:require [clojure.test :refer :all]))

(deftest test-1
  (is true))

(deftest test-2
  (is true)
  (is false)
  (is true))

(deftest test-3
  (is true))

• When I run bin/kaocha --fail-fast

• Then the exit-code should be 1

• And the output should contain:

[(..F)]

FAIL in my.project.fail-fast-test/test-2 (fail_fast_test.clj:9)
expected: false
  actual: false
2 tests, 3 assertions, 1 failures.