tests(e2e): improve coverage

examples/api/src/views/Positioner.svelte

@@ -0,0 +1,40 @@
+<script>
+  import {
+    moveWindow,
+    moveWindowConstrained,
+    Position
+  } from '@tauri-apps/plugin-positioner'
+
+  export let onMessage
+
+  // `Position` is a numeric enum, so it also maps the values back to their names
+  const positions = Object.keys(Position).filter((key) => isNaN(Number(key)))
+
+  let position = 'Center'
+  let constrained = false
+
+  function move() {
+    ;(constrained ? moveWindowConstrained : moveWindow)(Position[position])
+      .then(() => onMessage(`Moved the window to ${position}`))
+      .catch(onMessage)
+  }
+</script>
+
+<div class="flex flex-col gap-2">
+  <p>
+    The tray positions only resolve once the tray icon has been clicked, which
+    reports its location to the plugin.
+  </p>
+  <div class="flex flex-row gap-2 items-center">
+    <select class="input" bind:value={position}>
+      {#each positions as name}
+        <option value={name}>{name}</option>
+      {/each}
+    </select>
+    <label>
+      <input type="checkbox" bind:checked={constrained} />
+      Constrain to the tray icon's monitor
+    </label>
+    <button class="btn" on:click={move}>Move window</button>
+  </div>
+</div>