Run tests from Clojure Repl and Leiningen

Question

As a newbie to clojure, I have used leiningen to create a sample project with

lein new app first-project

which gave me this directory

Answer 1

To recap:

Way of require

Full qualification of functions is only needed if you issued an in-ns earlier. Then do:

(clojure.core/require '[clojure.core :refer [require]]
                      '[clojure.test :refer [run-tests]]
                      '[clojure.repl :refer [dir]])

---

; Load whatever is in namespace "foo.bar-test" and reload everything
; if `:reload-all` has been additionally given

(require 'foo.bar-test :reload-all) 
;=> nil

; List your tests for good measure (Note: don't quote the namespace symbol!)

(dir foo.bar-test)
;=> t-math
;=> t-arith
;=> t-exponential
;=> nil 

; Check meta-information on a test to verify selector for example 

(meta #'foo.bar-test/t-math)
;=> {:basic-math true, :test #object[foo.bar_tes...

; `run-tests` will probably run nothing because the current namespace
; doesn't contain any tests, unless you have changed it with "in-ns"

(run-tests) 
;=> Ran 0 tests containing 0 assertions.

; run tests by giving namespace explicitly instead

(run-tests 'foo.bar-test) 
;=> Ran 3 tests containing 29 assertions.