From c8ecd640220331ce7695d72ea8c618dd8909eab1 Mon Sep 17 00:00:00 2001
From: Kit Langton <kit.langton@gmail.com>
Date: Tue, 31 Mar 2026 21:24:39 -0400
Subject: test(app): add mock llm e2e fixture (#20375)

---
 packages/app/e2e/prompt/prompt.spec.ts | 107 +++++++++++++++++++++++----------
 1 file changed, 76 insertions(+), 31 deletions(-)

(limited to 'packages/app/e2e/prompt')

diff --git a/packages/app/e2e/prompt/prompt.spec.ts b/packages/app/e2e/prompt/prompt.spec.ts
index 0466d0988..1acf17f5b 100644
--- a/packages/app/e2e/prompt/prompt.spec.ts
+++ b/packages/app/e2e/prompt/prompt.spec.ts
@@ -1,8 +1,44 @@
+import fs from "node:fs/promises"
+import path from "node:path"
 import { test, expect } from "../fixtures"
 import { promptSelector } from "../selectors"
-import { cleanupSession, sessionIDFromUrl, withSession } from "../actions"
+import { sessionIDFromUrl } from "../actions"
+import { createSdk } from "../utils"
 
-test("can send a prompt and receive a reply", async ({ page, sdk, gotoSession }) => {
+async function config(dir: string, url: string) {
+  await fs.writeFile(
+    path.join(dir, "opencode.json"),
+    JSON.stringify({
+      $schema: "https://opencode.ai/config.json",
+      enabled_providers: ["e2e-llm"],
+      provider: {
+        "e2e-llm": {
+          name: "E2E LLM",
+          npm: "@ai-sdk/openai-compatible",
+          env: [],
+          models: {
+            "test-model": {
+              name: "Test Model",
+              tool_call: true,
+              limit: { context: 128000, output: 32000 },
+            },
+          },
+          options: {
+            apiKey: "test-key",
+            baseURL: url,
+          },
+        },
+      },
+      agent: {
+        build: {
+          model: "e2e-llm/test-model",
+        },
+      },
+    }),
+  )
+}
+
+test("can send a prompt and receive a reply", async ({ page, llm, withProject }) => {
   test.setTimeout(120_000)
 
   const pageErrors: string[] = []
@@ -11,42 +47,51 @@ test("can send a prompt and receive a reply", async ({ page, sdk, gotoSession })
   }
   page.on("pageerror", onPageError)
 
-  await gotoSession()
-
-  const token = `E2E_OK_${Date.now()}`
+  try {
+    await withProject(
+      async (project) => {
+        const sdk = createSdk(project.directory)
+        const token = `E2E_OK_${Date.now()}`
 
-  const prompt = page.locator(promptSelector)
-  await prompt.click()
-  await page.keyboard.type(`Reply with exactly: ${token}`)
-  await page.keyboard.press("Enter")
+        await llm.text(token)
+        await project.gotoSession()
 
-  await expect(page).toHaveURL(/\/session\/[^/?#]+/, { timeout: 30_000 })
+        const prompt = page.locator(promptSelector)
+        await prompt.click()
+        await page.keyboard.type(`Reply with exactly: ${token}`)
+        await page.keyboard.press("Enter")
 
-  const sessionID = (() => {
-    const id = sessionIDFromUrl(page.url())
-    if (!id) throw new Error(`Failed to parse session id from url: ${page.url()}`)
-    return id
-  })()
+        await expect(page).toHaveURL(/\/session\/[^/?#]+/, { timeout: 30_000 })
 
-  try {
-    await expect
-      .poll(
-        async () => {
-          const messages = await sdk.session.messages({ sessionID, limit: 50 }).then((r) => r.data ?? [])
-          return messages
-            .filter((m) => m.info.role === "assistant")
-            .flatMap((m) => m.parts)
-            .filter((p) => p.type === "text")
-            .map((p) => p.text)
-            .join("\n")
-        },
-        { timeout: 90_000 },
-      )
+        const sessionID = (() => {
+          const id = sessionIDFromUrl(page.url())
+          if (!id) throw new Error(`Failed to parse session id from url: ${page.url()}`)
+          return id
+        })()
+        project.trackSession(sessionID)
 
-      .toContain(token)
+        await expect
+          .poll(
+            async () => {
+              const messages = await sdk.session.messages({ sessionID, limit: 50 }).then((r) => r.data ?? [])
+              return messages
+                .filter((m) => m.info.role === "assistant")
+                .flatMap((m) => m.parts)
+                .filter((p) => p.type === "text")
+                .map((p) => p.text)
+                .join("\n")
+            },
+            { timeout: 30_000 },
+          )
+          .toContain(token)
+      },
+      {
+        model: { providerID: "e2e-llm", modelID: "test-model" },
+        setup: (dir) => config(dir, llm.url),
+      },
+    )
   } finally {
     page.off("pageerror", onPageError)
-    await cleanupSession({ sdk, sessionID })
   }
 
   if (pageErrors.length > 0) {
-- 
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