feat(test): add BtnScrollToTop component tests

resources/assets/js/__tests__/components/ui/to-top-button.spec.ts

@@ -1,4 +1,4 @@
-import Component from '@/components/ui/ScrollToTopButton.vue'
+import Component from '../../../components/ui/BtnScrollToTop.vue'
 import { $ } from '@/utils'
 import { mock } from '@/__tests__/__helpers__'
 import { shallow } from '@/__tests__/adapter'

resources/assets/js/components/ui/BtnScrollToTop.spec.ts

@@ -0,0 +1,22 @@
+import { expect, it } from 'vitest'
+import { fireEvent } from '@testing-library/vue'
+import { $ } from '@/utils'
+import ComponentTestCase from '@/__tests__/ComponentTestCase'
+import BtnScrollToTop from './BtnScrollToTop.vue'
+
+new class extends ComponentTestCase {
+  protected test () {
+    it('renders', () => {
+      expect(this.render(BtnScrollToTop).html()).toMatchSnapshot()
+    })
+
+    it('scrolls to top', async () => {
+      const mock = this.mock($, 'scrollTo')
+      const { getByTitle } = this.render(BtnScrollToTop)
+
+      await fireEvent.click(getByTitle('Scroll to top'))
+
+      expect(mock).toHaveBeenCalled()
+    })
+  }
+}

resources/assets/js/components/ui/BtnScrollToTop.vue

@@ -0,0 +1,53 @@
+<template>
+  <Transition name="fade">
+    <button v-show="showing" ref="el" title="Scroll to top" type="button" @click="scrollToTop">
+      <i class="fa fa-arrow-circle-up"/> Top
+    </button>
+  </Transition>
+</template>
+
+<script lang="ts" setup>
+import { onMounted, ref } from 'vue'
+import { $ } from '@/utils'
+
+const el = ref<HTMLElement>()
+const showing = ref(false)
+
+const scrollToTop = () => $.scrollTo(el.value?.parentElement!, 0, 500, () => (showing.value = false))
+
+onMounted(() => {
+  el.value?.parentElement?.addEventListener('scroll', event => {
+    showing.value = (event.target as HTMLElement).scrollTop > 64
+  })
+})
+</script>
+
+<style lang="scss" scoped>
+button {
+  &.fade-enter, &.fade-leave-to {
+    opacity: 0;
+  }
+
+  position: fixed;
+  bottom: calc(var(--footer-height-mobile) + 26px);
+  right: 1.8rem;
+  z-index: 20;
+  opacity: 1;
+  transition: opacity .5s;
+  border-radius: 9999px;
+  padding: 8px 16px;
+  background: rgba(0, 0, 0, .5);
+  border: 1px solid var(--color-text-primary);
+  color: var(--color-text-primary);
+
+  i {
+    margin-right: 4px;
+  }
+}
+
+@media screen and (min-width: 415px) {
+  button {
+    display: none;
+  }
+}
+</style>

resources/assets/js/components/ui/ScrollToTopButton.vue

@@ -1,60 +0,0 @@
-<template>
-  <transition name="fade">
-    <div class="to-top-btn-wrapper" v-show="showing" ref="el">
-      <button @click="scrollToTop" title="Scroll to top">
-        <i class="fa fa-arrow-circle-up"></i> Top
-      </button>
-    </div>
-  </transition>
-</template>
-
-<script lang="ts" setup>
-import { onMounted, ref } from 'vue'
-import { $ } from '@/utils'
-
-const el = ref(null as unknown as HTMLElement)
-const showing = ref(false)
-
-const scrollToTop = () => $.scrollTo(el.value.parentElement!, 0, 500, () => (showing.value = false))
-
-onMounted(() => {
-  el.value.parentElement?.addEventListener('scroll', event => {
-    showing.value = (event.target as HTMLElement).scrollTop > 64
-  })
-})
-</script>
-
-<style lang="scss">
-.to-top-btn-wrapper {
-  position: fixed;
-  width: 100%;
-  bottom: calc(var(--footer-height-mobile) + 26px);
-  left: 0;
-  text-align: center;
-  z-index: 20;
-  opacity: 1;
-  transition: opacity .5s;
-
-  &.fade-enter, &.fade-leave-to {
-    opacity: 0;
-  }
-
-  button {
-    border-radius: 18px;
-    padding: 8px 16px;
-    background: rgba(0, 0, 0, .5);
-    border: 1px solid var(--color-text-primary);
-    color: var(--color-text-primary);
-
-    i {
-      margin-right: 4px;
-    }
-  }
-}
-
-@media screen and (min-width: 415px) {
-  .to-top-btn-wrapper {
-    display: none;
-  }
-}
-</style>

resources/assets/js/components/ui/__snapshots__/BtnScrollToTop.spec.ts.snap

@@ -0,0 +1,3 @@
+// Vitest Snapshot v1
+
+exports[`renders 1`] = `"<transition-stub data-v-e7b6c7f6=\\"\\"><button title=\\"Scroll to top\\" type=\\"button\\" data-v-e7b6c7f6=\\"\\" style=\\"display: none;\\"><i class=\\"fa fa-arrow-circle-up\\" data-v-e7b6c7f6=\\"\\"></i> Top </button></transition-stub>"`;

resources/assets/js/composables/useInfiniteScroll.ts

@@ -6,7 +6,7 @@ import { defineAsyncComponent, ref } from 'vue'
  * the wrapper element: @scroll="scrolling"
  */
 export const useInfiniteScroll = (perPage = 30) => {
-  const ToTopButton = defineAsyncComponent(() => import('@/components/ui/ScrollToTopButton.vue'))
+  const ToTopButton = defineAsyncComponent(() => import('@/components/ui/BtnScrollToTop.vue'))
 
   const scroller = ref<HTMLElement>()
   const displayedItemCount = ref(perPage)