rlm@10: ;   Copyright (c) Rich Hickey. All rights reserved.
rlm@10: ;   The use and distribution terms for this software are covered by the
rlm@10: ;   Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
rlm@10: ;   which can be found in the file epl-v10.html at the root of this distribution.
rlm@10: ;   By using this software in any fashion, you are agreeing to be bound by
rlm@10: ;   the terms of this license.
rlm@10: ;   You must not remove this notice, or any other, from this software.
rlm@10: 
rlm@10: ;;; test_clojure/test.clj: unit tests for test.clj
rlm@10: 
rlm@10: ;; by Stuart Sierra
rlm@10: ;; January 16, 2009
rlm@10: 
rlm@10: ;; Thanks to Chas Emerick, Allen Rohner, and Stuart Halloway for
rlm@10: ;; contributions and suggestions.
rlm@10: 
rlm@10: 
rlm@10: (ns clojure.test-clojure.test
rlm@10:   (:use clojure.test))
rlm@10: 
rlm@10: (deftest can-test-symbol
rlm@10:   (let [x true]
rlm@10:     (is x "Should pass"))
rlm@10:   (let [x false]
rlm@10:     (is x "Should fail")))
rlm@10: 
rlm@10: (deftest can-test-boolean
rlm@10:   (is true "Should pass")
rlm@10:   (is false "Should fail"))
rlm@10: 
rlm@10: (deftest can-test-nil
rlm@10:   (is nil "Should fail"))
rlm@10: 
rlm@10: (deftest can-test-=
rlm@10:   (is (= 2 (+ 1 1)) "Should pass")
rlm@10:   (is (= 3 (+ 2 2)) "Should fail"))
rlm@10: 
rlm@10: (deftest can-test-instance
rlm@10:   (is (instance? Integer (+ 2 2)) "Should pass")
rlm@10:   (is (instance? Float (+ 1 1)) "Should fail"))
rlm@10: 
rlm@10: (deftest can-test-thrown
rlm@10:   (is (thrown? ArithmeticException (/ 1 0)) "Should pass")
rlm@10:   ;; No exception is thrown:
rlm@10:   (is (thrown? Exception (+ 1 1)) "Should fail")
rlm@10:   ;; Wrong class of exception is thrown:
rlm@10:   (is (thrown? ArithmeticException (throw (RuntimeException.))) "Should error"))
rlm@10: 
rlm@10: (deftest can-test-thrown-with-msg
rlm@10:   (is (thrown-with-msg? ArithmeticException #"Divide by zero" (/ 1 0)) "Should pass")
rlm@10:   ;; Wrong message string:
rlm@10:   (is (thrown-with-msg? ArithmeticException #"Something else" (/ 1 0)) "Should fail")
rlm@10:   ;; No exception is thrown:
rlm@10:   (is (thrown? Exception (+ 1 1)) "Should fail")
rlm@10:   ;; Wrong class of exception is thrown:
rlm@10:   (is (thrown-with-msg? IllegalArgumentException #"Divide by zero" (/ 1 0)) "Should error"))
rlm@10: 
rlm@10: (deftest can-catch-unexpected-exceptions
rlm@10:   (is (= 1 (throw (Exception.))) "Should error"))
rlm@10: 
rlm@10: (deftest can-test-method-call
rlm@10:   (is (.startsWith "abc" "a") "Should pass")
rlm@10:   (is (.startsWith "abc" "d") "Should fail"))
rlm@10: 
rlm@10: (deftest can-test-anonymous-fn
rlm@10:   (is (#(.startsWith % "a") "abc") "Should pass")
rlm@10:   (is (#(.startsWith % "d") "abc") "Should fail"))
rlm@10: 
rlm@10: (deftest can-test-regexps
rlm@10:   (is (re-matches #"^ab.*$" "abbabba") "Should pass")
rlm@10:   (is (re-matches #"^cd.*$" "abbabba") "Should fail")
rlm@10:   (is (re-find #"ab" "abbabba") "Should pass")
rlm@10:   (is (re-find #"cd" "abbabba") "Should fail"))
rlm@10: 
rlm@10: (deftest #^{:has-meta true} can-add-metadata-to-tests
rlm@10:   (is (:has-meta (meta #'can-add-metadata-to-tests)) "Should pass"))
rlm@10: 
rlm@10: ;; still have to declare the symbol before testing unbound symbols
rlm@10: (declare does-not-exist)
rlm@10: 
rlm@10: (deftest can-test-unbound-symbol
rlm@10:   (is (= nil does-not-exist) "Should error"))
rlm@10: 
rlm@10: (deftest can-test-unbound-function
rlm@10:   (is (does-not-exist) "Should error"))
rlm@10: 
rlm@10: 
rlm@10: ;; Here, we create an alternate version of test/report, that
rlm@10: ;; compares the event with the message, then calls the original
rlm@10: ;; 'report' with modified arguments.
rlm@10: 
rlm@10: (declare original-report)
rlm@10: 
rlm@10: (defn custom-report [data]
rlm@10:   (let [event (:type data)
rlm@10:         msg (:message data)
rlm@10:         expected (:expected data)
rlm@10:         actual (:actual data)
rlm@10:         passed (cond
rlm@10:                  (= event :fail) (= msg "Should fail")
rlm@10:                  (= event :pass) (= msg "Should pass")
rlm@10:                  (= event :error) (= msg "Should error")
rlm@10:                  :else true)]
rlm@10:     (if passed
rlm@10:       (original-report {:type :pass, :message msg,
rlm@10:                         :expected expected, :actual actual})
rlm@10:       (original-report {:type :fail, :message (str msg " but got " event)
rlm@10:                         :expected expected, :actual actual}))))
rlm@10: 
rlm@10: ;; test-ns-hook will be used by test/test-ns to run tests in this
rlm@10: ;; namespace.
rlm@10: (defn test-ns-hook []
rlm@10:   (binding [original-report report
rlm@10:             report custom-report]
rlm@10:     (test-all-vars (find-ns 'clojure.test-clojure.test))))