how to write test cases in clojure - clojure

Question

i am beginner in clojure
I wrote
(expect true (valid? "henry" "as#gmail.com" "9999999999" "tesxt message"))
in my (ns clojuregeek.test.contact)
when i run the test cases by lein test in clojure i found:--
lein test clojuregeek.test.contact
Ran 0 tests containing 0 assertions.
0 failures, 0 errors.
failure in (contact.clj:32) : clojuregeek.test.contact
(expect
true
(valid? "henry" "as#gmail.com" "9999999999" "tesxt message"))
act-msg: exception in actual: (valid? "henry" "as#gmail.com" "9999999999" "tesxt message")
threw: class java.lang.ClassCastException - clojure.lang.Var$Unbound cannot be cast to java.util.concurrent.Future
noir.validation$get_errors$doInvoke (validation.clj:94)
noir.validation$errors_QMARK_$doInvoke (validation.clj:140)
on (contact.clj:34)
on (contact.clj:32)
Ran 1 tests containing 1 assertions in 178 msecs
0 failures, 1 errors.

Answer 1

While developing a petri net simulator in Clojure, the testing environment Midje was the best choice to write useful and simple testcases. Maybe you just take a look at this...
Testcases are really simple. You just create your facts in test/core_tests.clj like:
(ns your-namespace.core-tests
(:use midje.sweet)
:require [your-namespace.core :as core])
(fact "Testing valid?"
(core/valid? "henry" "as#gmail.com" "9999999999" "tesxt message") => true)
;; some more facts...
For preparation you need to modify your project.clj:
(defproject your-project "0.1.0-SNAPSHOT"
:description ""
:url "http://example.com/FIXME";TODO
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.5.1"]
[midje "1.6.2"]]
:main ^:skip-aot your-project.core
:target-path "target/%s"
:profiles {:uberjar {:aot :all}
:dev {:dependencies [[midje "1.6.2"]]
:plugins [[lein-midje "3.1.3"]]}})
After this you can start a new terminal window and type in your project folder first lein deps and after this:
lein midje :autotest
and Midje is going to run through your test every time you save a file in your project folder.
In my opinion one of the best solutions to write simple and useful testcases.