test(load): pass BASE_URL as flag instead

[ci-skip]

Author: sethidden

.github/workflows/run-k6-load-test.yml

@@ -46,6 +46,4 @@ jobs:
           cloud: ${{ github.event.inputs.cloud }}
           token: ${{ secrets.K6_CLOUD_API_TOKEN }}
           filename: ${{ github.event.inputs.filename }}
-          flags: ${{ github.event.inputs.flags }}
-        env:
-          BASE_URL: ${{ github.event.inputs.environment }}
+          flags: -e BASE_URL=${github.event.inputs.environment} ${{ github.event.inputs.flags }}

packages/theme/tests/load/searchProduct.js

@@ -22,6 +22,10 @@ export const options = {
 
 const { BASE_URL } = __ENV;
 
+if (BASE_URL === undefined) {
+  throw new Error('BASE_URL is not set');
+}
+
 export default function main() {
   let response;