Setup oauth2 utils test

packages/server/src/sdk/app/oauth2/tests/docker-volume/realm.json

@@ -0,0 +1,13 @@
+{
+  "id": "myrealm",
+  "realm": "myrealm",
+  "enabled": true,
+  "clients": [
+    {
+      "clientId": "my-client",
+      "secret": "my-secret",
+      "directAccessGrantsEnabled": true,
+      "serviceAccountsEnabled": true
+    }
+  ]
+}

packages/server/src/sdk/app/oauth2/tests/utils.spec.ts

@@ -0,0 +1,57 @@
+import { generator } from "@budibase/backend-core/tests"
+import { GenericContainer, StartedTestContainer, Wait } from "testcontainers"
+import sdk from "../../.."
+import TestConfiguration from "../../../../tests/utilities/TestConfiguration"
+import { generateToken } from "../utils"
+import path from "path"
+
+const config = new TestConfiguration()
+
+const keyClockImage = `quay.io/keycloak/keycloak@sha256:2ce6c7c70994c70dbbd70b372a5422c3b4eebb32583175eac03751320609e52c`
+
+const volumePath = path.resolve(__dirname, "docker-volume")
+
+describe("oauth2 utils", () => {
+  let container: StartedTestContainer
+
+  let keycloakUrl: string
+
+  beforeAll(async () => {
+    await config.init()
+
+    container = await new GenericContainer(keyClockImage)
+      .withName("keycloak_testcontainer")
+      .withExposedPorts(8080)
+      .withBindMounts([
+        { source: volumePath, target: "/opt/keycloak/data/import/" },
+      ])
+      .withCommand(["start-dev", "--import-realm"])
+      .withWaitStrategy(Wait.forLogMessage("Listening on: http://0.0.0.0:8080"))
+      .withStartupTimeout(60000)
+      .start()
+
+    keycloakUrl = `http://${container.getHost()}:${container.getMappedPort(
+      8080
+    )}`
+  })
+
+  afterAll(async () => {
+    await container.stop()
+  })
+
+  describe("generateToken", () => {
+    it("successfully generates tokens", async () => {
+      const response = await config.doInContext(config.appId, async () => {
+        const oauthConfig = await sdk.oauth2.create({
+          name: generator.guid(),
+          url: `${keycloakUrl}/realms/myrealm/protocol/openid-connect/token`,
+        })
+
+        const response = await generateToken(oauthConfig.id)
+        return response
+      })
+
+      expect(response).toBe("")
+    })
+  })
+})

packages/server/src/sdk/app/oauth2/utils.ts

@@ -9,6 +9,9 @@ export async function generateToken(id: string) {
   }
 
   const resp = await fetch(config.url, { method: "post" })
+  if (resp.status !== 200) {
+    throw new Error(`Error fetching oauth2 token: ${resp.statusText}`)
+  }
   const jsonResponse = await resp.json()
   return `${jsonResponse.token_type} ${jsonResponse.access_token}`
 }