feat(module): add support for vue using unplugin (#2416)

Co-authored-by: Benjamin Canac <canacb1@gmail.com>

test/utils/mount.ts

@@ -0,0 +1,34 @@
+import { mount } from '@vue/test-utils'
+import { createRouter, createWebHistory } from 'vue-router'
+import { defu } from 'defu'
+import type { SetupContext } from 'vue'
+
+const router = createRouter({
+  history: createWebHistory(),
+  routes: [{ path: '/', component: { template: '<div>Home</div>' } }]
+})
+
+export function mountSuspended(...args: Parameters<typeof mount>) {
+  let setupState = {}
+  const comp = args[0] as any
+  if (comp.setup) {
+    const originalSetup = comp.setup
+    comp.setup = function (props: Record<string, any>, ctx: SetupContext) {
+      setupState = originalSetup.call(this, props, ctx)
+      return setupState
+    }
+  }
+  const wrapper = mount(args[0], defu({}, args[1], {
+    global: {
+      stubs: {
+        ClientOnly: { template: '<slot />' }
+      },
+      plugins: [router]
+    }
+  }))
+
+  // @ts-expect-error - setupState does not exist in type
+  wrapper.setupState = setupState
+
+  return wrapper
+}

test/utils/setup.ts

@@ -0,0 +1,8 @@
+// @ts-expect-error incomplete implementation
+window.IntersectionObserver = class IntersectionObserver {
+  // eslint-disable-next-line
+  constructor() {}
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+}