unsuccessful attempt to run karma in continous mode

in watch mode, karmas's web server does not wait for cljs compiler
to finish writing generated files, corrupts its own cache and starts serving corrupted files.

cljs/src/meld/meld/core_tests.cljs

@@ -0,0 +1,8 @@
+(ns meld.core-tests
+  (:require-macros [plastic.logging :refer [log info warn error group group-end]]
+                   [cljs.test :refer [deftest is testing]])
+  (:require [meld.core :as core]))
+
+(deftest meld-core-sample
+  (testing "testing meld"
+    (is (= 1 9))))

cljs/src/test/plastic/suites/all_tests.cljs

@@ -1,2 +1,3 @@
 (ns plastic.suites.all-tests
-  [:require [plastic.test.sample]])
+  [:require [plastic.test.sample]
+            [plastic.suites.meld-tests]])

cljs/src/test/plastic/suites/meld_tests.cljs

@@ -0,0 +1,2 @@
+(ns plastic.suites.meld-tests
+  [:require [meld.core-tests]])

cljs/src/test/plastic/test/sample.cljs

@@ -9,4 +9,4 @@
   (testing "testing level 1"
     (testing "testing level 2"
       (testing "testing level 3"
-        (is (= 1 1))))))
+        (is (= 1 3))))))

script/auto-test.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+set -e
+
+# http://stackoverflow.com/a/32566506/84283
+kill_childs() {
+        local pid="${1}"
+        local self="${2:-false}"
+
+        if children="$(pgrep -P "$pid")"; then
+                for child in $children; do
+                        kill_childs "$child" true
+                done
+        fi
+
+        if [ "$self" == true ]; then
+                kill -s SIGTERM "$pid" || (sleep 10 && kill -9 "$pid" &)
+        fi
+}
+
+# http://superuser.com/a/917073/8244
+wait_file() {
+  local file="$1"; shift
+  local wait_seconds="${1:-10}"; shift # 10 seconds as default timeout
+
+  until test $((wait_seconds--)) -eq 0 -o -f "$file" ; do sleep 1; done
+
+  ((++wait_seconds))
+}
+
+echo "THIS SCRIPT DOES NOT WORK RELIABLY"
+echo "karmas's web server does not wait for cljs compiler to finish writing of files, corrupts its own cache and starts serving corrupted files."
+
+
+trap 'echo "killing child processes: $(jobs -p)..." && kill_childs $(jobs -p)' EXIT
+
+# ensure we start in cljs project root
+cd "$(dirname "${BASH_SOURCE[0]}")"; cd ../cljs
+
+lein clean
+lein cljsbuild auto test &
+
+compiler_output="resources/test/.build/test/plastic.js"
+
+wait_file $compiler_output 120 || {
+  echo "compiler output file missing after waiting for $? seconds: '$$compiler_output'"
+  echo "check for errors/misconfiguration of: lein cljsbuild auto test"
+  exit 1
+}
+
+../node_modules/karma/bin/karma start ../karma/dev.conf.js