I am working on an api that has an interface and two distinct
implementations lets call them: foo and bar.
I have a testing routine with a bunch of functions that each call a
function to get a clean instance of an implementation, initializes it
with some data and then interrogate it.
with the exception of calling (new-foo) or (new-bar), foo and bar can
be tested identically. I would like to be able to define tests in a
namespace for the api, then have a test-foo namespace that calls those
tests with *new-test-instance* bound to new-foo. likewise for new
bar. because I would like the exact same tests run, the whole point
is these things should behave the same at the API level. I don't want
to have to copy and paste all my tests and make sure I keep them
synchronized, that seems like an error waiting to happen.
I can define the tests in test-api with deftest but doing so will
cause the test to be run there (when I call mvn clojure:test), and as
there is no implementation they will of course fail. I can block test-
api from calling it's tests with:
(defn test-ns-hook [])
but then the tests become a pain to call from another namespace.
surely there is a way to do this?
in test-api with the blocking test-ns-hook, I tried
(def the-tests [
(deftest test-1 .... ) ])
then in test-foo I tried
(defn test-ns-hook []
(dorun
(map (fn [x]
(binding [project.test-api/*new-test-instance*
(fn [] (new-foo))]
(x)))
project.test-api/the-tests)))
that doesn't work I keep seeing this:
Uncaught exception, not in assertion.
expected: nil
actual: java.lang.NoClassDefFoundError: org/slf4j/impl/
StaticLoggerBinder
...
except if I put that exact same test-ns-hook implementation into the
repl and call (run-tests) everything checks out *exactly* as expected.
I have spent way too many hours on this... help?
Kevin
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