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tests/unit/task/presentation.test.ts

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+import { describe, expect, it } from 'vitest'
+import { resolveTaskPresentationState } from '@/lib/task/presentation'
+
+describe('resolveTaskPresentationState', () => {
+  it('uses overlay mode when running and has output', () => {
+    const state = resolveTaskPresentationState({
+      phase: 'processing',
+      intent: 'regenerate',
+      resource: 'image',
+      hasOutput: true,
+    })
+    expect(state.isRunning).toBe(true)
+    expect(state.mode).toBe('overlay')
+    expect(state.labelKey).toBe('taskStatus.intent.regenerate.running.image')
+  })
+
+  it('uses placeholder mode when running and no output', () => {
+    const state = resolveTaskPresentationState({
+      phase: 'queued',
+      intent: 'generate',
+      resource: 'image',
+      hasOutput: false,
+    })
+    expect(state.mode).toBe('placeholder')
+    expect(state.labelKey).toBe('taskStatus.intent.generate.running.image')
+  })
+
+  it('maps failed state to failed label', () => {
+    const state = resolveTaskPresentationState({
+      phase: 'failed',
+      intent: 'modify',
+      resource: 'video',
+      hasOutput: true,
+    })
+    expect(state.isError).toBe(true)
+    expect(state.labelKey).toBe('taskStatus.failed.video')
+  })
+})