From 3fedf52467dd8d2734a7aca4c6c7da421c12474f Mon Sep 17 00:00:00 2001
From: Julius Marminge <julius0216@outlook.com>
Date: Sat, 5 Sep 2026 00:22:14 -0700
Subject: [PATCH] test(server): cover raw OpenCode deltas through the adapter
 (#9977)

---
 .../src/provider/Layers/OpenCodeAdapter.test.ts    | 14 +++++---------
 apps/server/src/provider/Layers/OpenCodeAdapter.ts |  2 +-
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/apps/server/src/provider/Layers/OpenCodeAdapter.test.ts b/apps/server/src/provider/Layers/OpenCodeAdapter.test.ts
index fb0e9aa9ef2d7c95bda6eb8e5e2f18d5843dac84..81e799c9095e1a196b5e284946f483b0986cc583 100644
--- a/apps/server/src/provider/Layers/OpenCodeAdapter.test.ts
+++ b/apps/server/src/provider/Layers/OpenCodeAdapter.test.ts
@@ -43,7 +43,6 @@ import {
   type OpenCodeRuntimeShape,
 } from "../opencodeRuntime.ts";
 import {
-  appendOpenCodeAssistantTextDelta,
   isOpenCodeNotFound,
   isSameOpenCodeDirectory,
   makeOpenCodeAdapter,
@@ -6430,20 +6429,17 @@ it.layer(OpenCodeAdapterTestLayer)("OpenCodeAdapterLive", (it) => {
       }).pipe(Effect.scoped),
   );
 
-  it.effect("appends raw assistant text deltas and reconciles part update snapshots", () =>
+  it.effect("reconciles assistant text snapshots", () =>
     Effect.sync(() => {
       const firstUpdate = mergeOpenCodeAssistantText(undefined, "Hello");
-      const overlapDelta = appendOpenCodeAssistantTextDelta(firstUpdate.latestText, "lo world");
-      const secondUpdate = mergeOpenCodeAssistantText(overlapDelta.nextText, "Hellolo world");
       const appendedUpdate = mergeOpenCodeAssistantText("Hello", "Hello world");
       const changedUpdate = mergeOpenCodeAssistantText("Hello world", "Hello there");
       const staleUpdate = mergeOpenCodeAssistantText("Hello world", "Hello");
 
-      NodeAssert.deepEqual(
-        [firstUpdate.deltaToEmit, overlapDelta.deltaToEmit, secondUpdate.deltaToEmit],
-        ["Hello", "lo world", ""],
-      );
-      NodeAssert.equal(secondUpdate.latestText, "Hellolo world");
+      NodeAssert.deepEqual(firstUpdate, {
+        latestText: "Hello",
+        deltaToEmit: "Hello",
+      });
       NodeAssert.deepEqual(appendedUpdate, {
         latestText: "Hello world",
         deltaToEmit: " world",
diff --git a/apps/server/src/provider/Layers/OpenCodeAdapter.ts b/apps/server/src/provider/Layers/OpenCodeAdapter.ts
index ea777d1e15f93a1e101fd2e38c6f8caa0a254bcd..b8aa7d4a9a520314f44c1583f90f27d191e7aab2 100644
--- a/apps/server/src/provider/Layers/OpenCodeAdapter.ts
+++ b/apps/server/src/provider/Layers/OpenCodeAdapter.ts
@@ -626,7 +626,7 @@ export function mergeOpenCodeAssistantText(
   };
 }
 
-export function appendOpenCodeAssistantTextDelta(
+function appendOpenCodeAssistantTextDelta(
   previousText: string,
   delta: string,
 ): {
-- 
2.54.0