import test from 'node:test'
import assert from 'node:assert/strict'
const mod = await import('../../../web/js/model-cache.js')

function setNavigator(value) {
  Object.defineProperty(globalThis, 'navigator', { value, configurable: true, writable: true })
}

test('criterion 1', async () => {
  const removed = []
  const deletedCaches = []
  const root = {
    async removeEntry(name, opts) { removed.push([name, opts]) },
  }
  setNavigator({ storage: { getDirectory: async () => root } })
  globalThis.caches = { delete: async (n) => { deletedCaches.push(n); return true } }

  await mod.clearModelCache()

  assert.ok(removed.some(([n]) => n === 'elffuss-models'))
  assert.deepEqual(deletedCaches, ['elffuss-models-v1'])
})

test('criterion 2', async () => {
  let calls = 0
  setNavigator({ storage: { getDirectory: async () => { calls++; throw new Error('sin OPFS') } } })
  globalThis.caches = { delete: async () => true }

  await assert.doesNotReject(mod.clearModelCache())
  assert.equal(calls, 1)
})