diff --git a/get-tests b/get-tests
index 71a48eb167ffa65e4152d186cfd081dd9b3d06fc..be615586037de2a9db0cd1d0dc01e9a46e5c7eb1 100755
--- a/get-tests
+++ b/get-tests
@@ -1,4 +1,14 @@
 #! /bin/sh
 
+set -e
+
 cd /tmp
+if [ -z "$TEST_PROJECT_NAME" ]; then
+    echo 'Missing TEST_PROJECT_NAME'
+    exit 1
+elif [ -z "$TEST_ACCESS_TOKEN" ]; then
+    echo 'Missing TEST_ACCESS_TOKEN'
+    exit 1
+fi
+
 git clone https://token:$TEST_ACCESS_TOKEN@git.app.uib.no/ii/inf222/v23/assignments/$TEST_PROJECT_NAME.git testcode