test: add tests for auto-generated composables

Author: mateuszkulpa

Diff for: test/composables.test.ts

@@ -0,0 +1,15 @@
+import { URL, fileURLToPath } from 'node:url'
+import { describe, it, expect } from 'vitest'
+import { setup, $fetch } from '@nuxt/test-utils'
+
+describe('auto-generated composables', async () => {
+  await setup({
+    server: true,
+    rootDir: fileURLToPath(new URL('./fixtures/composables', import.meta.url)),
+  })
+
+  it('generates composable based on config', async () => {
+    const html = await $fetch('/')
+    expect(html).toEqual(expect.stringMatching(/variant: (a|b)/))
+  })
+})

Diff for: test/fixtures/composables/app.vue

@@ -0,0 +1,8 @@
+<template>
+  <h1>Composables fixture</h1>
+  <p>variant: {{ selectedVariants.value }}</p>
+</template>
+
+<script setup lang="ts">
+const selectedVariants = useHeaderABTest()
+</script>

Diff for: test/fixtures/composables/nuxt.config.ts

@@ -0,0 +1,15 @@
+export default defineNuxtConfig({
+  modules: ['../../../src/module'],
+  // @ts-ignore
+  abTesting: {
+    tests: [
+      {
+        id: 'header',
+        variants: [
+          { id: 'a', value: 'a' },
+          { id: 'b', value: 'b' },
+        ],
+      },
+    ],
+  },
+})

Diff for: test/fixtures/composables/packages.json

@@ -0,0 +1,5 @@
+{
+  "private": true,
+  "name": "composables",
+  "type": "module"
+}