Unify test and prod app config factory functions, add a getter for ap…

…p config based on env variable and add fresh http server test

app/src/app-config.ts

@@ -82,9 +82,19 @@ export class TestAppConfig implements AppConfig {
     this.getYoutubeVideoSummary = getYoutubeVideoSummary;
   }
 
-  static async createForVideoId(videoId: string): Promise<AppConfig> {
-    return new TestAppConfig(
-      await createTestGetYoutubeVideoSummaryForVideoId(videoId),
+  static async createForVideoId(videoId: string): Promise<Ok<AppConfig>> {
+    return createOk(
+      new TestAppConfig(
+        await createTestGetYoutubeVideoSummaryForVideoId(videoId),
+      ),
     );
   }
 }
+
+export const TEST_CONFIG_VIDEO_ID = "test";
+
+export function getAppConfig(desiredGptModel?: string) {
+  return Deno.env.get("TEST") === "true"
+    ? TestAppConfig.createForVideoId(TEST_CONFIG_VIDEO_ID)
+    : ProdAppConfig.create(desiredGptModel);
+}

app/test/get-youtube-video-summary.test.ts

@@ -9,7 +9,7 @@ import { createFailure, createOk } from "../src/result.ts";
 import { assertEquals } from "https://deno.land/[email protected]/assert/mod.ts";
 import { createPromise } from "./common.ts";
 
-const SUCCESSFUL_CHAT_GPT_CAPTIONS_SUMMARY =
+export const SUCCESSFUL_CHAT_GPT_CAPTIONS_SUMMARY =
   `The video is a music video for the song "Never Gonna Give You Up" by Rick
   Astley. The captions display the lyrics of the song, which talk about love
   and commitment, assuring that the singer will never give up on the person

routes/summary/youtube.tsx

@@ -1,5 +1,5 @@
 import { FreshContext, Handlers, PageProps } from "$fresh/server.ts";
-import { ProdAppConfig } from "../../app/src/app-config.ts";
+import { getAppConfig } from "../../app/src/app-config.ts";
 import { InternalFailure } from "../../app/src/failure.ts";
 import { Result } from "../../app/src/result.ts";
 import { Ok } from "../../app/src/result.ts";
@@ -12,7 +12,7 @@ export const handler: Handlers = {
     ctx: FreshContext,
   ) {
     const videoId = new URL(req.url).searchParams.get("id") || "";
-    const appResult = ProdAppConfig.create();
+    const appResult = await getAppConfig();
     if (appResult.result === Result.Failure) {
       return ctx.render(appResult);
     }

run.ts

@@ -1,5 +1,5 @@
 // Entrypoint to run "just tell me" from the command line interface.
-import { ProdAppConfig } from "./app/src/app-config.ts";
+import { getAppConfig } from "./app/src/app-config.ts";
 import { Result } from "./app/src/result.ts";
 import { parseArgs } from "https://deno.land/[email protected]/cli/parse_args.ts";
 
@@ -16,7 +16,7 @@ async function run() {
     string: ["model"],
   });
 
-  const appConfigResult = ProdAppConfig.create(flags.model);
+  const appConfigResult = await getAppConfig(flags.model);
   if (appConfigResult.result === Result.Failure) {
     console.log(appConfigResult.failure, "\n", appConfigResult.message);
   } else {

test/main-test.test.ts

@@ -0,0 +1,29 @@
+import { createHandler, ServeHandlerInfo } from "$fresh/server.ts";
+import manifest from "../fresh.gen.ts";
+import config from "../fresh.config.ts";
+import { assert } from "$std/assert/assert.ts";
+
+const CONN_INFO: ServeHandlerInfo = {
+  remoteAddr: { hostname: "127.0.0.1", port: 53496, transport: "tcp" },
+};
+
+Deno.test("HTTP tests", async (t) => {
+  Deno.env.set("TEST", "true");
+
+  const handler = await createHandler(manifest, config);
+
+  await t.step("GET /summary/youtube?id=test", async () => {
+    const response = await handler(
+      new Request("http://127.0.0.1/summary/youtube?id=test"),
+      CONN_INFO,
+    );
+    const text = await response.text();
+    assert(
+      text.includes(
+        "The video is a music video for the song "Never Gonna Give You Up"",
+      ),
+    );
+  });
+
+  Deno.env.delete("TEST");
+});