Add tests for boolean? (#83)

Author: rafonsecad

test/clojure/core_test/boolean_qmark.cljc

@@ -0,0 +1,34 @@
+(ns clojure.core-test.boolean-qmark
+  (:require clojure.core
+            [clojure.core-test.number-range :as r]
+            [clojure.test :as t :refer [deftest testing is are]]
+            [clojure.core-test.portability #?(:cljs :refer-macros :default :refer)  [when-var-exists]]))
+
+(when-var-exists clojure.core/boolean?
+  (deftest test-boolean?
+    (testing "common"
+      (are [expected x] (= expected (boolean? x))
+           false nil
+           false 0
+           false 1
+           false -1
+           false 0.0
+           false 1.0
+           false -1.0
+           false r/max-int
+           false r/min-int
+           false \space
+           false :a-keyword
+           false "str"
+           false []
+           false '()
+           false {}
+           false #{}
+           true false
+           true true
+           #?@(:cljs [true (js/Boolean true)
+                      true (js/Boolean false)
+                      true (js/Boolean "yes")]
+               :clj [true (new Boolean "true")
+                     true (new Boolean "false")
+                     true (new Boolean "yes")])))))