(= [1] '(1)), but it shows up in the diff anyway

[durka]

When a test fails due to unequal maps, difftest flags a key where only the type of collection differs, not the content. This is a false positive because those collections are still equal (and if the maps are otherwise equal, the test does not fail).

Here is what I mean:

(deftest bad
   (testing "oops"
     (is (= {:a [1] :b 2} {:a '(1) :b 2}) "all else equal")
     (is (= {:a [1] :b 2} {:a '(1) :b 3}) "all else unequal")))

and the output

FAIL in (bad) (bug.clj:100)
oops
all else unequal
expected: (= {:a [1], :b 2} {:a (quote (1)), :b 3})
  actual:
   {:a
 - (1)
 + [1]
   , :b
 - 3
 + 2
   }

You can see that the first test passed when considering only [1] vs '(1), and the second failed due to :b, but difftest picks up :a as well even though Clojure does not care.