test(accordion): mode single et v-model contrôlé [#MUI-37]

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/components/malio/accordion/Accordion.test.ts

@@ -86,3 +86,51 @@ describe('MalioAccordion — rendu & mode multiple', () => {
     await nextTick()
   })
 })
+
+describe('MalioAccordion — mode single & contrôlé', () => {
+  it('opening a panel closes the others in single mode', async () => {
+    const wrapper = mountAccordion({mode: 'single'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    await headers[1].trigger('click')
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+    expect(headers[1].attributes('aria-expanded')).toBe('true')
+  })
+
+  it('emits a string in single mode', async () => {
+    const wrapper = mountAccordion({mode: 'single'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[1].trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual(['cat'])
+  })
+
+  it('emits empty string when closing the open panel in single mode', async () => {
+    const wrapper = mountAccordion({mode: 'single', modelValue: 'prix'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([''])
+  })
+
+  it('respects modelValue array in controlled multiple mode', () => {
+    const wrapper = mountAccordion({modelValue: ['cat']})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+    expect(headers[1].attributes('aria-expanded')).toBe('true')
+  })
+
+  it('respects modelValue string in controlled single mode', () => {
+    const wrapper = mountAccordion({mode: 'single', modelValue: 'prix'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    expect(headers[0].attributes('aria-expanded')).toBe('true')
+    expect(headers[1].attributes('aria-expanded')).toBe('false')
+  })
+
+  it('does not mutate local state in controlled mode (emits only)', async () => {
+    const wrapper = mountAccordion({modelValue: []})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    // état piloté par le parent : sans mise à jour de la prop, reste fermé
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([['prix']])
+  })
+})