fix: Propagate plugin error to users

src/lib/errors/failed-to-run-test-error.ts

@@ -0,0 +1,13 @@
+import {CustomError} from './custom-error';
+
+export class FailedToRunTestError extends CustomError {
+    private static ERROR_MESSAGE: string =
+        'Failed to run a test';
+
+    constructor(userMessage, errorCode?) {
+      const code = errorCode || 500;
+      super(userMessage || FailedToRunTestError.ERROR_MESSAGE);
+      this.code = errorCode || code;
+      this.userMessage = userMessage || FailedToRunTestError.ERROR_MESSAGE;
+    }
+}

src/lib/errors/index.ts

@@ -11,3 +11,4 @@ export {InternalServerError} from './internal-server-error';
 export {FailedToGetVulnerabilitiesError} from './failed-to-get-vulnerabilities-error';
 export {UnsupportedFeatureFlagError} from './unsupported-feature-flag-error';
 export {UnsupportedPackageManagerError} from './unsupported-package-manager-error';
+export {FailedToRunTestError} from './failed-to-run-test-error';

src/lib/snyk-test/run-test.ts

@@ -21,6 +21,7 @@ import {
   NoSupportedManifestsFoundError,
   InternalServerError,
   FailedToGetVulnerabilitiesError,
+  FailedToRunTestError,
 } from '../errors';
 import { maybePrintDeps } from '../print-deps';
 import { SupportedPackageManagers } from '../package-managers';
@@ -147,7 +148,10 @@ async function runTest(packageManager: SupportedPackageManagers,
       throw NoSupportedManifestsFoundError([root]);
     }
 
-    throw err;
+    throw new FailedToRunTestError(
+      err.userMessage || err.message || `Failed to test ${packageManager} project`,
+      err.code,
+    );
   } finally {
     spinner.clear(spinnerLbl)();
   }