Add some basic tests for the this warning

test/validator/samples/a11y-no-noninteractive-element-interactions/input.svelte

@@ -0,0 +1,11 @@
+<!-- VALID -->
+<div role="presentation" on:mouseup={() => {}} />
+<div role="button" on:click={() => {}} on:keypress={() => {}} />
+<div role="listitem" aria-hidden on:click={() => {}} on:keypress={() => {}} />
+<button on:click={() => {}} />
+<h1>Heading</h1>
+
+<!-- INVALID -->
+<div role="listitem" on:mousedown={() => {}} />
+<h1 on:click={() => {}} on:keydown={() => {}}>Heading</h1>
+<h1 role="banner" on:keyup={() => {}}>Heading</h1>

test/validator/samples/a11y-no-noninteractive-element-interactions/warnings.json

@@ -0,0 +1,38 @@
+[
+  {
+    "code": "a11y-no-noninteractive-element-interactions",
+    "end": {
+      "column": 47,
+      "line": 9
+    },
+    "message": "A11y: Non-interactive element <div> should not be assigned mouse or keyboard event listeners.",
+    "start": {
+      "column": 0,
+      "line": 9
+    }
+  },
+  {
+    "code": "a11y-no-noninteractive-element-interactions",
+    "end": {
+      "column": 58,
+      "line": 10 
+    },
+    "message": "A11y: Non-interactive element <h1> should not be assigned mouse or keyboard event listeners.",
+    "start": {
+      "column": 0,
+      "line": 10
+    }
+  },
+  {
+    "code": "a11y-no-noninteractive-element-interactions",
+    "end": {
+      "column": 50,
+      "line": 11
+    },
+    "message": "A11y: Non-interactive element <h1> should not be assigned mouse or keyboard event listeners.",
+    "start": {
+      "column": 0,
+      "line": 11
+    }
+  }
+]