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