From 7453638e17f93761480ded6586ff1ba06195f463 Mon Sep 17 00:00:00 2001
From: Konrad Mrożek <kmrozek@comscore.com>
Date: Tue, 17 Oct 2023 08:22:53 +0000
Subject: [PATCH] Print stack trace if an exception occured

---
 clojure/src/test_runner.clj |   41 +++++++++++++++++++++++++++++++----------
 1 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/clojure/src/test_runner.clj b/clojure/src/test_runner.clj
index 718abdd..c617c67 100644
--- a/clojure/src/test_runner.clj
+++ b/clojure/src/test_runner.clj
@@ -9,8 +9,10 @@
      ~@body))
 
 (with-class-cache
-  (require '[clojure.test :as t]))
+  (require '[clojure.test :as t]
+           '[lambdaisland.deep-diff2 :as ddiff]))
 
+(def no-colors-printer (ddiff/printer {:print-color false}))
 (defmulti vim-report :type)
 
 (defmethod vim-report :begin-test-ns [m]
@@ -29,6 +31,21 @@
     (println (str "FAIL:" source-file ":" (:line m) ":" (t/testing-vars-str m) ":" (t/testing-contexts-str) ":" (:message m "FAIL")))
     (println (str "FAIL-CONTINUE:EXPECTED:" (pr-str (:expected m))))
     (println (str "FAIL-CONTINUE:ACTUAL:" (pr-str (:actual m))))))
+
+(defmethod t/assert-expr '= [msg form]
+  (let [args (rest form)
+        pred (first form)]
+    `(let [values# (list ~@args)
+           result# (apply ~pred values#)]
+       (if result#
+         (t/do-report {:type :pass, :message ~msg,
+                       :expected '~form, :actual (cons '~pred values#)})
+         (do
+           (t/do-report {:type :fail, :message ~msg,
+                         :expected '~form, :actual (list '~'not (cons '~pred values#))})
+           (-> (apply ddiff/diff values#)
+               (ddiff/pretty-print no-colors-printer))))
+       result#)))
 
 (defn- find-line-number [source-file m]
   (if (instance? Throwable (:actual m))
@@ -55,7 +72,9 @@
       (println (str "ERROR-CONTINUE:ACTUAL:"
                     (if (instance? Throwable (:actual m))
                       (ex-message (:actual m))
-                      (pr-str (:actual m))))))))
+                      (pr-str (:actual m)))))
+      (when (instance? Throwable (:actual m))
+        (.printStackTrace (:actual m))))))
 
 (defmethod vim-report :default
   [_])
@@ -91,7 +110,8 @@
       (when (find-ns 'malli.core)
         (println "Malli detected. Instrument functions...")
         (require 'malli.dev)
-        ((find-var 'malli.dev/start!)))
+        (require 'malli.dev.pretty)
+        ((find-var 'malli.dev/start!) {:report ((find-var 'malli.dev.pretty/thrower))}))
       (let [test-namespaces (->> (all-ns)
                                  (mapcat ns-publics)
                                  (map (comp meta second))
@@ -103,10 +123,14 @@
           (System/exit
            (if (pos? (if (and -test-file -test-line)
 
-                       (let [results (t/run-test-var (find-closest-test (.. (java.io.File. -test-file) getAbsolutePath)
-                                                                        (parse-long -test-line)))]
-                         (+ (:fail results 0)
-                            (:error results 0)))
+                       (if-let [test-var (find-closest-test (.. (java.io.File. -test-file) getAbsolutePath)
+                                                            (parse-long -test-line))]
+                         (->> (t/run-test-var test-var)
+                              ((juxt :fail :error))
+                              (apply +))
+                         (do
+                           (println "No test found")
+                           0))
                        (reduce (fn [total-fails n]
                                  (let [results (t/run-tests n)]
                                    (+ total-fails
@@ -116,6 +140,3 @@
                                test-namespaces)))
              1
              0)))))))
-
-
-

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