Oook, this is starting to sink in.
I've gotten a little farther, in that I can run quick-check with my custom
generator. However, after a bunch of values had been generated, it fails on
a NullPointerException. How can I know where the breakdown is happening?
=> (tc/quick-check 100 u/has-agroup)
{:email , :last-name , :first-name , :username }
{:email , :last-name , :first-name , :username 0}
{:email , :last-name , :first-name Rq, :username 0}
{:email 5D2, :last-name R4F, :first-name x, :username G0H}
...
{:email 8KQgSr497EPw14X80oEbWC0, :last-name cdkLb8D5ol, :first-name
8DCOXz1U4S3JM641u5I7yPwQ, :username DADOk}
{:email x, :last-name Qq3h07d6Cbs4, :first-name 6H6Enrwu, :username
yf40SClLjJHp1ptbnx4I9xFbwI3}
*NullPointerException clojure.test.check.generators/gen-bind/fn--18990
(generators.clj:77)*
bkell.bkell> (pst *e)
NullPointerException
clojure.test.check.generators/gen-bind/fn--18990 (generators.clj:77)
clojure.test.check.generators/gen-bind/fn--18990 (generators.clj:79)
clojure.test.check.generators/gen-bind/fn--18990 (generators.clj:77)
clojure.test.check.generators/gen-fmap/fn--18985 (generators.clj:70)
clojure.test.check.generators/call-gen (generators.clj:56)
clojure.test.check/quick-check (check.clj:57)
bkell.bkell/eval19267 (form-init7280611083923741467.clj:1)
clojure.lang.Compiler.eval (Compiler.java:6703)
clojure.lang.Compiler.eval (Compiler.java:6666)
clojure.core/eval (core.clj:2927)
clojure.main/repl/read-eval-print--6625/fn--6628 (main.clj:239)
clojure.main/repl/read-eval-print--6625 (main.clj:239)
This is my domain function:
(defn *create-user*
([] (create {}))
([opts]
(println opts)
(let [sans-nils (apply merge (for [[k v]
opts
:when (not (nil? v))]
{k v}))]
(merge {:id (mu/generate-uuid)
:username ""
:password (crypto/base64 12)
:first-name ""
:last-name ""
:email ""
:country {}}
sans-nils))))
And these are my test functions.
(def gend-user
(gen/fmap *du/create-user*
(gen/hash-map :username gen/string-alpha-numeric
:first-name gen/string-alpha-numeric
:last-name gen/string-alpha-numeric
:email gen/string-alpha-numeric)))
(def has-agroup
(prop/for-all [v (gen/sample gend-user)]
(-> v nil? not)))
Tim Washington
Interruptsoftware.com <http://interruptsoftware.com>
On Sun, Aug 10, 2014 at 3:02 PM, Sam Ritchie <[email protected]> wrote:
> You can to use gen/fmap to build up generators. Here's an example:
>
>
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