From 537f09be0f3e454bab38eeade42aa7bac4794335 Mon Sep 17 00:00:00 2001
From: Jordi Enric <37541088+jordienr@users.noreply.github.com>
Date: Mon, 31 Aug 2026 10:55:23 +0200
Subject: [PATCH] fix(studio): label omitted worker runtime as custom FE-4314
 (#49757)
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## Problem

Workers with an omitted runtime are displayed as Unknown, even though an
omitted runtime represents a custom worker image.

## Fix

Display Custom when the runtime is omitted. Preserve friendly labels for
known runtimes and raw values for explicit unrecognized runtimes.

## How to test

- Run `node_modules/.bin/vitest --run
components/interfaces/Workers/Workers.utils.test.ts` from `apps/studio`.
- Open a worker whose API response omits `spec.runtime`.
- Expected result: the runtime badge displays Custom.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Bug Fixes**
- Worker runtimes without available metadata are now labeled
**“Custom”** instead of **“Unknown.”**
- Updated the related behavior validation to reflect the corrected
runtime label.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---
 .../components/interfaces/Workers/Workers.utils.test.ts       | 4 ++--
 apps/studio/components/interfaces/Workers/Workers.utils.ts    | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/apps/studio/components/interfaces/Workers/Workers.utils.test.ts b/apps/studio/components/interfaces/Workers/Workers.utils.test.ts
index da791ba0349..735d86fe26c 100644
--- a/apps/studio/components/interfaces/Workers/Workers.utils.test.ts
+++ b/apps/studio/components/interfaces/Workers/Workers.utils.test.ts
@@ -112,8 +112,8 @@ describe('formatRuntime', () => {
     expect(formatRuntime('rust')).toBe('rust')
   })
 
-  it('reports unknown when the API omits the runtime', () => {
-    expect(formatRuntime(undefined)).toBe('Unknown')
+  it('labels an omitted runtime as custom', () => {
+    expect(formatRuntime(undefined)).toBe('Custom')
   })
 })
 
diff --git a/apps/studio/components/interfaces/Workers/Workers.utils.ts b/apps/studio/components/interfaces/Workers/Workers.utils.ts
index ddbcae1ee20..11678149636 100644
--- a/apps/studio/components/interfaces/Workers/Workers.utils.ts
+++ b/apps/studio/components/interfaces/Workers/Workers.utils.ts
@@ -42,7 +42,7 @@ export const getRuntimeMeta = (runtime: string | undefined): RuntimeMeta | undef
   runtime === undefined ? undefined : RUNTIMES[runtime]
 
 export const formatRuntime = (runtime: string | undefined): string =>
-  getRuntimeMeta(runtime)?.label ?? runtime ?? 'Unknown'
+  getRuntimeMeta(runtime)?.label ?? runtime ?? 'Custom'
 
 // The API reports size as e.g. "2gb-1vcpu"; render the parts when they parse, the raw value if not.
 export const formatSize = (size: string): string => {