chore(e2e-dev-runtime): scope fake-data source plugin data refreshes

Author: pieh

e2e-tests/development-runtime/package.json

@@ -34,10 +34,10 @@
     "test": "npm run start-server-and-test || (npm run reset && exit 1)",
     "posttest": "npm run reset",
     "reset": "node scripts/reset.js",
-    "reset:preview": "node plugins/gatsby-source-fake-data/reset.js && npm run update:preview",
+    "reset:preview": "curl -X POST http://localhost:8000/__refresh",
     "update": "node scripts/update.js",
     "update:webhook": "node scripts/webhook.js",
-    "update:preview": "curl -X POST http://localhost:8000/__refresh",
+    "update:preview": "curl -X POST -d '{ \"fake-data-update\": true }' -H \"Content-Type: application/json\" http://localhost:8000/__refresh",
     "start-server-and-test": "start-server-and-test develop http://localhost:8000 cy:run",
     "cy:open": "cypress open",
     "cy:run": "(is-ci && cypress run --browser chrome --record) || cypress run --browser chrome"

e2e-tests/development-runtime/plugins/gatsby-source-fake-data/gatsby-node.js

@@ -29,6 +29,9 @@ exports.sourceNodes = async function sourceNodes({
     reporter.info(`Webhook data detected; creating nodes`)
     webhookBody.items.forEach(node => createNode(api.getNode(node, helpers)))
   } else {
+    if (!(webhookBody && webhookBody[`fake-data-update`])) {
+      await api.reset()
+    }
     const [updated, deleted = []] = await api.sync(helpers)
 
     updated.forEach(node => createNode(node))