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api.clj
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api.clj
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(clojure.core/require 'kaocha.version-check)
(ns kaocha.api
"Programmable test runner interface."
(:require [clojure.test :as t]
[kaocha.config :as config]
[kaocha.hierarchy :as hierarchy]
[kaocha.history :as history]
[kaocha.output :as output]
[kaocha.plugin :as plugin]
[kaocha.report :as report]
[kaocha.result :as result]
[kaocha.util :as util]
[kaocha.stacktrace :as stacktrace]
[kaocha.testable :as testable]
[slingshot.slingshot :refer [try+ throw+]]))
;; Prevent clj-refactor from "cleaning" these from the ns form
(require 'kaocha.monkey-patch)
(def ^:dynamic *active?*
"Is Kaocha currently active? i.e. loading or runnning tests."
false)
(defmacro ^:private with-reporter [r & body]
`(with-redefs [t/report ~r]
~@body))
(defmacro ^{:author "Colin Jones"} set-signal-handler!
[signal f]
(if (try (Class/forName "sun.misc.Signal")
(catch Throwable e))
`(try
(sun.misc.Signal/handle
(sun.misc.Signal. ~signal)
(proxy [sun.misc.SignalHandler] []
(handle [signal#] (~f signal#))))
(catch Throwable e#))
false))
(defmacro ^:private with-shutdown-hook [f & body]
`(let [runtime# (java.lang.Runtime/getRuntime)
on-shutdown# (Thread. ~f)]
(.addShutdownHook runtime# on-shutdown#)
(try
~@body
(finally
(.removeShutdownHook runtime# on-shutdown#)))))
(defn test-plan [config]
(let [config (plugin/run-hook :kaocha.hooks/pre-load config)
tests (:kaocha/tests config)]
(plugin/run-hook
:kaocha.hooks/post-load
(-> config
(dissoc :kaocha/tests)
(assoc :kaocha.test-plan/tests (testable/load-testables tests))))))
(defn- resolve-reporter [config]
(try+
(let [fail-fast? (:kaocha/fail-fast? config)
reporter (:kaocha/reporter config)
reporter (-> reporter
(cond-> (not (vector? reporter)) vector)
(conj 'kaocha.report/report-counters
'kaocha.history/track
'kaocha.report/dispatch-extra-keys)
(cond-> fail-fast? (conj 'kaocha.report/fail-fast))
config/resolve-reporter)]
(assoc config :kaocha/reporter (fn [m]
(try
(reporter m)
(catch clojure.lang.ExceptionInfo e
(if (:kaocha/fail-fast (ex-data e))
(throw e)
(do
(output/error "Error in reporter: " (ex-data e) " when processing " (pr-str (util/minimal-test-event m)))
(stacktrace/print-cause-trace e))))
(catch Throwable t
(output/error "Error in reporter: " (.getClass t) " when processing " (pr-str (util/minimal-test-event m)))
(stacktrace/print-cause-trace t))))))
(catch :kaocha/reporter-not-found {:kaocha/keys [reporter-not-found]}
(output/error "Failed to resolve reporter var: " reporter-not-found)
(throw+ {:kaocha/early-exit 254}))))
(defn run [config]
(let [plugins (:kaocha/plugins config)
plugin-chain (plugin/load-all plugins)]
(plugin/with-plugins plugin-chain
(let [config (plugin/run-hook :kaocha.hooks/config config)
color? (:kaocha/color? config)
fail-fast? (:kaocha/fail-fast? config)
history (atom [])]
(binding [*active?* true
testable/*fail-fast?* fail-fast?
testable/*config* config
history/*history* history
output/*colored-output* color?]
(with-bindings (config/binding-map config)
(let [config (resolve-reporter config)]
(let [test-plan (test-plan config)]
(when-not (some #(or (hierarchy/leaf? %)
(::testable/load-error %))
(testable/test-seq test-plan))
(if (not (zero? (count (filter ::testable/skip (testable/test-seq-with-skipped test-plan)))))
(output/warn (format (str "All %d tests were skipped."
" Check for misspelled settings in your Kaocha test configuration"
" or incorrect focus or skip filters.")
(count (testable/test-seq-with-skipped test-plan))))
(output/warn (str "No tests were found. This may be an issue in your Kaocha test configuration."
" To investigate, check the :test-paths and :ns-patterns keys in tests.edn.")))
(throw+ {:kaocha/early-exit 0 }))
(when (find-ns 'matcher-combinators.core)
(require 'kaocha.matcher-combinators))
;; The load stage adds directories to the classpath, so at this
;; point all vars that are being bound need to exist, if not we
;; throw.
(with-bindings (config/binding-map config :throw-errors)
(with-reporter (:kaocha/reporter test-plan)
(let [on-exit (fn []
(try
;; Force reset printing to stdout, since we
;; don't know where in the process we've
;; been interrupted, output capturing may
;; still be in effect.
(System/setOut
(java.io.PrintStream.
(java.io.BufferedOutputStream.
(java.io.FileOutputStream. java.io.FileDescriptor/out))))
(binding [history/*history* history]
(t/do-report (history/clojure-test-summary)))
(catch Throwable t
(println "Exception in exit (SIGINT/ShutDown) handler")
(prn t)
(System/exit 1))))]
;; Prefer a signal handler, but accept a shutdown hook
(with-shutdown-hook (if (set-signal-handler! "INT" (fn [_]
(on-exit)
(System/exit 1)))
(fn [])
on-exit)
(let [test-plan (plugin/run-hook :kaocha.hooks/pre-run test-plan)]
(binding [testable/*test-plan* test-plan]
(let [test-plan-tests (:kaocha.test-plan/tests test-plan)
result-tests (testable/run-testables test-plan-tests test-plan)
result (plugin/run-hook :kaocha.hooks/post-run
(-> test-plan
(dissoc :kaocha.test-plan/tests)
(assoc :kaocha.result/tests result-tests)))]
(assert (= (count test-plan-tests) (count (:kaocha.result/tests result))))
(-> result
result/testable-totals
result/totals->clojure-test-summary
t/do-report)
result)))))))))))))))