Add basic test

packages/server/src/jsRunner/tests/jsRunner.spec.ts

@@ -0,0 +1,21 @@
+import { processStringSync, encodeJSBinding } from "@budibase/string-templates"
+import TestConfiguration from "../../tests/utilities/TestConfiguration"
+
+describe("jsRunner", () => {
+  const config = new TestConfiguration()
+
+  beforeAll(async () => {
+    await config.init()
+  })
+
+  const processJS = (js: string, context?: object) => {
+    return config.doInContext(config.getAppId(), async () =>
+      processStringSync(encodeJSBinding(js), context || {})
+    )
+  }
+
+  it("it can run a basic javascript", async () => {
+    const output = await processJS(`return 1 + 2`)
+    expect(output).toBe(3)
+  })
+})