Unittest in Clojure doesn't compile when I test my own functions

Question

I am new to Clojure and now I'm trying to use some unittesting.

I have a sample project with this structure:

core.clj in src/hello contains

(ns hello.core
  (:gen-class))

(defn side-eq [x]
  (if (< 0 (count x)) 
    (= (.charAt x 0) (.charAt x (- (count x) 1)))
    false))

core.clj in test/hello contains

(ns hello.core    
  (:use clojure.test)
  (:require [hello.core :refer :all])
  (:gen-class))


(use 'clojure.test)
(deftest side-eq-tests (
                         is (= false (side-eq "aws"))))

(run-tests)

when I execute tests, it throws

java.lang.RuntimeException: Unable to resolve symbol: side-eq in this context

When I test something like

is (= 1 1)

then everything works fine.

What is going on?

Joost Diepenmaat · Accepted Answer · 2018-01-06 19:36:18Z

2

You should not have multiple files with the same namespace. Rename your tests to something else. The idiomatic name here would be hello.core-test In test/hello/core_test.clj

answered Jan 6, 2018 at 19:36

Joost Diepenmaat

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Alan Thompson · Accepted Answer · 2018-01-07 20:48:37Z

0

A variation which I prefer is to begin all testing namespacese with the tst.* prefix, which avoids the hyphen-underscore conversion & confusion (e.g. demo.core-test vs demo.core_test.clj. So your files look like so:

> d **/*.clj
-rwxrwxr-x 1 alan alan 1024 Jan  5 19:00 project.clj*
-rwxrwxr-x 1 alan alan   84 Jan  5 15:29 src/demo/core.clj*
-rwxrwxr-x 1 alan alan  248 Jan  7 12:42 test/tst/demo/core.clj*

and the code looks like:

(ns demo.core)

(defn -main []
  (println "main - enter")
)

and

(ns tst.demo.core
  (:use demo.core tupelo.core tupelo.test)
  (:require
    [tupelo.misc :as tm] ))

....

answered Jan 7, 2018 at 20:48

Alan Thompson

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