When I run a test in Spacemacs with Clojure mode via <SPC> m t t
it does not show a failure, even when the test clearly fails. See:
1 is not equal to 2, but still there are 0 test failures.
How can I make the test fail?
There is an issue in your test: it lacks comparison operator. The correct version is:
(deftest test-exercise-1-4
(testing "count-anywhere"
(is (= 2 1))))
is
macro has following definition (edited source for brevity):
(defmacro is
"Generic assertion macro. 'form' is any predicate test.
'msg' is an optional message to attach to the assertion.
Example: (is (= 4 (+ 2 2)) \"Two plus two should be 4\")
([form] `(is ~form nil))
([form msg] `(try-expr ~msg ~form)))
As you can see with (is 2 1)
you are calling the second arity where form
is 2
and the message for assertion is 1
. As 2
is truthy it makes the assertion to pass:
(is 2)
;; => 2
(is false)
FAIL in () (boot.user5045373352931487641.clj:1)
expected: false
actual: false
;; => false