Update Model Selection

packages/bare-os-coreutils/test/agent-live-model.test.mjs

@@ -0,0 +1,74 @@
+import test from 'brittle'
+import { readFileSync } from 'node:fs'
+import vm from 'node:vm'
+
+const QVAC_SRC = readFileSync(new URL('../lib/agent/agent-qvac.js', import.meta.url), 'utf8')
+const MODELS_SRC = readFileSync(
+  new URL('../lib/agent/agent-models.js', import.meta.url),
+  'utf8'
+)
+const TUI_SRC = readFileSync(new URL('../lib/agent/agent-tui.js', import.meta.url), 'utf8')
+
+function load() {
+  const sandbox = { console }
+  vm.createContext(sandbox)
+  vm.runInContext(
+    QVAC_SRC +
+      '\n' +
+      MODELS_SRC +
+      '\n' +
+      TUI_SRC +
+      '\n;this.__exports = { bareAgentHonorExplicitQvacModel, bareAgentApplyLiveModel, bareAgentApplyProviderProfile, bareAgentQvacGetProfile, bareAgentQvacFindChatModel }',
+    sandbox
+  )
+  return sandbox.__exports
+}
+
+test('explicit QVAC model survives profile apply (live Discord/CLI switch)', async (t) => {
+  const { bareAgentApplyProviderProfile } = load()
+  const next = bareAgentApplyProviderProfile({
+    backend: 'qvac',
+    qvac_profile: 'recommended',
+    qvac_model: 'QWEN3_8B_INST_Q4_K_M',
+    model: 'QWEN3_8B_INST_Q4_K_M'
+  })
+  t.is(next.qvac_model, 'QWEN3_8B_INST_Q4_K_M')
+  t.is(next.model, 'QWEN3_8B_INST_Q4_K_M')
+})
+
+test('empty QVAC model fills from profile', async (t) => {
+  const { bareAgentApplyProviderProfile, bareAgentQvacGetProfile } = load()
+  const next = bareAgentApplyProviderProfile({
+    backend: 'qvac',
+    qvac_profile: 'strong'
+  })
+  t.is(next.qvac_model, bareAgentQvacGetProfile('strong').chatModel)
+})
+
+test('apply live model on QVAC sets both keys and profile when catalog-known', async (t) => {
+  const { bareAgentApplyLiveModel } = load()
+  const next = bareAgentApplyLiveModel(
+    { backend: 'qvac', qvac_profile: 'recommended', qvac_model: 'QWEN3_1_7B_INST_Q4' },
+    'QWEN3_600M_INST_Q4'
+  )
+  t.is(next.qvac_model, 'QWEN3_600M_INST_Q4')
+  t.is(next.model, 'QWEN3_600M_INST_Q4')
+  t.is(next.qvac_profile, 'lite')
+})
+
+test('apply live model on REST only changes model', async (t) => {
+  const { bareAgentApplyLiveModel } = load()
+  const next = bareAgentApplyLiveModel(
+    {
+      backend: 'rest',
+      provider: 'groq',
+      rest_api_key: 'gsk',
+      rest_base_url: 'https://api.groq.com/openai/v1',
+      model: 'old'
+    },
+    'llama-3.1-8b-instant'
+  )
+  t.is(next.backend, 'rest')
+  t.is(next.model, 'llama-3.1-8b-instant')
+  t.absent(next.qvac_model)
+})