diff --git a/src/App.vue b/src/App.vue
index 7a4d1ad..a5490fc 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -20,9 +20,11 @@ onMounted(() => {
   }[window.api.platform]||''
 
   // add it everywhere
-  window.platform = platform
-  document.platform = platform
-  document.querySelector('body').classList.add(platform)
+  if (platform) {
+    window.platform = platform
+    document.platform = platform
+    document.querySelector('body').classList.add(platform)
+  }
 
 })
 
@@ -38,7 +40,7 @@ const routes = {
 const currentPath = ref(window.location.hash)
 
 const currentView = computed(() => {
-  //console.log(currentPath.value)
+  //console.log(currentPath.value.slice(1) || '/')
   return routes[currentPath.value.slice(1) || '/']
 })
 
diff --git a/tests/screens/app.test.ts b/tests/screens/app.test.ts
new file mode 100644
index 0000000..8ebf463
--- /dev/null
+++ b/tests/screens/app.test.ts
@@ -0,0 +1,62 @@
+
+import { vi, beforeEach, expect, test, afterAll } from 'vitest'
+import { enableAutoUnmount, mount } from '@vue/test-utils'
+import App from '../../src/App.vue'
+import Main from '../../src/screens/Main.vue'
+import Wait from '../../src/screens/Wait.vue'
+import Commands from '../../src/screens/Commands.vue'
+import PromptAnywhere from '../../src/screens/PromptAnywhere.vue'
+import defaults from '../../defaults/settings.json'
+
+enableAutoUnmount(afterAll)
+
+window.api = {
+  config: {
+    load: vi.fn(() => defaults),
+  },
+  commands: {
+    load: vi.fn(() => []),
+  },
+  prompts: {
+    load: vi.fn(() => []),
+  },
+  history: {
+    load: vi.fn(() => []),
+  },
+  on: vi.fn(),
+}
+
+test('Renders correctly', () => {
+  window.location = new URL('http://localhost/')
+  mount(App)
+})
+
+test('Renders Main', () => {
+  window.location = new URL('http://localhost/')
+  const wrapper = mount(App)
+  expect(wrapper.findComponent(Main).exists()).toBe(true)
+})
+
+test('Renders Wait', () => {
+  window.location = new URL('http://localhost/#/wait')
+  const wrapper = mount(App)
+  expect(wrapper.findComponent(Wait).exists()).toBe(true)
+})
+
+test('Renders Commands', () => {
+  window.location = new URL('http://localhost/#/command')
+  const wrapper = mount(App)
+  expect(wrapper.findComponent(Commands).exists()).toBe(true)
+})
+
+test('Renders PromptAnywhere', () => {
+  window.location = new URL('http://localhost/#/prompt')
+  const wrapper = mount(App)
+  expect(wrapper.findComponent(PromptAnywhere).exists()).toBe(true)
+})
+
+test('Transmits query params', () => {
+  window.location = new URL('http://localhost/?textId=6#/command')
+  const wrapper = mount(App)
+  expect(wrapper.findComponent(Commands).props().extra.textId).toBe('6')
+})