diff --git a/default.nix b/default.nix
index c69a8ec..b04bef3 100644
--- a/default.nix
+++ b/default.nix
@@ -167,6 +167,6 @@ in rec {
   tests = pkgs.writeShellScript "isle-tests" ''
     export PATH=$PATH:${appImage}/bin
     test_dir=${./tests}
-    exec $SHELL $test_dir/entrypoint.sh
+    exec $SHELL $test_dir/entrypoint.sh "$@"
   '';
 }
diff --git a/tests/00-version.sh b/tests/00-version.sh
index 51f4d9d..f8b3bf4 100644
--- a/tests/00-version.sh
+++ b/tests/00-version.sh
@@ -1,2 +1,4 @@
 version="$(isle version)"
-test "$(echo "$version" | wc -l)" -gt 0
+echo "$version" | grep -q 'Release:'
+echo "$version" | grep -q 'Platform:'
+echo "$version" | grep -q 'Build Platform:'
diff --git a/tests/entrypoint.sh b/tests/entrypoint.sh
index 02cb6f7..bd84e28 100644
--- a/tests/entrypoint.sh
+++ b/tests/entrypoint.sh
@@ -1,5 +1,18 @@
 set -e
 
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -v|--verbose)
+      VERBOSE=1
+      shift;
+      ;;
+    *)
+      echo "USAGE: [-v|--verbose]"
+      exit 1
+      ;;
+  esac
+done
+
 # cd into script's directory
 cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null
 
@@ -13,7 +26,10 @@ echo -e '\nrunning all tests...\n'
 
 for file in $(find . -type f -name '*.sh' | grep -v entrypoint.sh | sort -n); do
     echo "running test $file"
-    if ! $SHELL -e -x "$file" >"$tmp/$file.log" 2>&1; then
+
+    [ -z "$VERBOSE" ] && output="$tmp/$file.log" || output=/dev/stdout
+
+    if ! $SHELL -e -x "$file" >"$output" 2>&1; then
         echo "TEST FAILED"
         echo "output of test is as follows"
         echo "------------------------------"