add test

Author: baseballyama

tests/fixtures/rules/valid-context-access/invalid/case06-errors.yaml

@@ -0,0 +1,4 @@
+- message: Do not call setContext except during component initialization.
+  line: 5
+  column: 7
+  suggestions: null

tests/fixtures/rules/valid-context-access/invalid/case06-input.svelte

@@ -0,0 +1,15 @@
+<script>
+  import { setContext, onMount } from "svelte"
+  const something = () => {
+    const inner = () => {
+      setContext("answer", 42)
+    }
+    inner()
+  }
+
+  something()
+</script>
+
+{#if something()}
+  <button>Click Me</button>
+{/if}