Add migration integrity tests

packages/server/src/appMigrations/tests/migrations.spec.ts

@@ -0,0 +1,26 @@
+import { context } from "@budibase/backend-core"
+import * as setup from "../../api/routes/tests/utilities"
+import { MIGRATIONS } from "../migrations"
+import { runMigration } from "../queue"
+
+describe("migration", () => {
+  it("each migration can rerun safely", async () => {
+    const config = setup.getConfig()
+    await config.init()
+
+    const migrations = Object.keys(MIGRATIONS)
+
+    await config.doInContext(config.getAppId(), async () => {
+      const db = context.getAppDB()
+      for (const migration of migrations) {
+        await runMigration(migration)
+        const docs = await db.allDocs({ include_docs: true })
+
+        await runMigration(migration)
+        const latestDocs = await db.allDocs({ include_docs: true })
+
+        expect(docs).toEqual(latestDocs)
+      }
+    })
+  })
+})