Fix runtime warnings test

Author: rrrene

test/error_if_warnings.sh

@@ -2,7 +2,8 @@ grep -E "^warning: .+" --after-context=6 <&0
 
 if [ $? -eq 0 ]
 then
-  exit 1
+  echo "error: Runtime warnings detected. Exiting ..."
+  exit 255
 else
   exit 0
 fi

test/runtime_warnings.sh

@@ -5,33 +5,33 @@ set -e
 mix compile --force --warnings-as-errors
 
 
-mix credo --mute-exit-status | ./test/error_if_warnings.sh
+mix credo --mute-exit-status 2>&1 | ./test/error_if_warnings.sh
 
-mix credo --strict --enable-disabled-checks . --mute-exit-status | ./test/error_if_warnings.sh
+mix credo --strict --enable-disabled-checks . --mute-exit-status 2>&1 | ./test/error_if_warnings.sh
 
-mix credo --strict --enable-disabled-checks . --mute-exit-status --format=json | ./test/error_if_warnings.sh
+mix credo --strict --enable-disabled-checks . --mute-exit-status --format=json 2>&1 | ./test/error_if_warnings.sh
 
-mix credo lib/credo.ex --read-from-stdin --strict < lib/credo.ex | ./test/error_if_warnings.sh
+mix credo lib/credo.ex --read-from-stdin --strict < lib/credo.ex 2>&1 | ./test/error_if_warnings.sh
 
-mix credo list --mute-exit-status | ./test/error_if_warnings.sh
+mix credo list --mute-exit-status 2>&1 | ./test/error_if_warnings.sh
 
-mix credo suggest --mute-exit-status | ./test/error_if_warnings.sh
+mix credo suggest --mute-exit-status 2>&1 | ./test/error_if_warnings.sh
 
-mix credo diff HEAD^ --mute-exit-status | ./test/error_if_warnings.sh
+mix credo diff HEAD^ --mute-exit-status 2>&1 | ./test/error_if_warnings.sh
 
-mix credo diff v1.4.0 --mute-exit-status | ./test/error_if_warnings.sh
+mix credo diff v1.4.0 --mute-exit-status 2>&1 | ./test/error_if_warnings.sh
 
-mix credo explain test/fixtures/example_code/clean_redux.ex:1:11 --mute-exit-status | ./test/error_if_warnings.sh
+mix credo explain test/fixtures/example_code/clean_redux.ex:1:11 --mute-exit-status 2>&1 | ./test/error_if_warnings.sh
 
-mix credo explain Credo.Check.Refactor.Nesting --mute-exit-status | ./test/error_if_warnings.sh
+mix credo explain Credo.Check.Refactor.Nesting --mute-exit-status 2>&1 | ./test/error_if_warnings.sh
 
-mix credo categories | ./test/error_if_warnings.sh
+mix credo categories 2>&1 | ./test/error_if_warnings.sh
 
-mix credo info --verbose | ./test/error_if_warnings.sh
+mix credo info --verbose 2>&1 | ./test/error_if_warnings.sh
 
-mix credo version | ./test/error_if_warnings.sh
+mix credo version 2>&1 | ./test/error_if_warnings.sh
 
-mix credo help | ./test/error_if_warnings.sh
+mix credo help 2>&1 | ./test/error_if_warnings.sh
 
 
 echo ""