Add tests

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

@@ -0,0 +1,55 @@
+import * as setup from "../../api/routes/tests/utilities"
+import { processMigrations } from "../migrationsProcessor"
+import { getAppMigrationVersion } from "../appMigrationMetadata"
+import { context } from "@budibase/backend-core"
+
+describe("migrationsProcessor", () => {
+  it("running migrations will update the latest applied migration", async () => {
+    const testMigrations: {
+      migrationId: string
+      migrationFunc: () => Promise<void>
+    }[] = [
+      { migrationId: "123", migrationFunc: async () => {} },
+      { migrationId: "124", migrationFunc: async () => {} },
+      { migrationId: "125", migrationFunc: async () => {} },
+    ]
+
+    const config = setup.getConfig()
+    await config.init()
+
+    const appId = config.getAppId()
+
+    await config.doInContext(appId, () =>
+      processMigrations(appId, testMigrations)
+    )
+
+    expect(
+      await config.doInContext(appId, () => getAppMigrationVersion(appId))
+    ).toBe("125")
+  })
+
+  it("no context can be initialised within a migration", async () => {
+    const testMigrations: {
+      migrationId: string
+      migrationFunc: () => Promise<void>
+    }[] = [
+      {
+        migrationId: "123",
+        migrationFunc: async () => {
+          await context.doInAppMigrationContext("any", () => {})
+        },
+      },
+    ]
+
+    const config = setup.getConfig()
+    await config.init()
+
+    const appId = config.getAppId()
+
+    await expect(
+      config.doInContext(appId, () => processMigrations(appId, testMigrations))
+    ).rejects.toThrowError(
+      "The context cannot be changed, a migration is currently running"
+    )
+  })
+})