Add clarinet check step to romeo test script (#247)

* Add clarinet check step to romeo test script

* exit on failure and add comments

Author: AshtonStephens

romeo/asset-contract/scripts/test.sh

@@ -1,6 +1,18 @@
 #!/bin/sh
+
+# Setup directories.
 mkdir -p .test
 mkdir -p .coverage
 rm -r .test/*
+
+# Exit on next failure.
+set -e
+
+# Verify syntax.
+clarinet check
+
+# Generate tests.
 clarinet run --allow-write --allow-read ext/generate-tests.ts
+
+# Test with coverage.
 clarinet test --coverage .coverage/lcov.info .test