add test for HTMLElement with no window

Author: MatanBobi

src/__tests__/helpers.js

@@ -25,6 +25,19 @@ describe('window retrieval throws when given something other than a node', () =>
       `It looks like you passed an Array instead of a DOM node. Did you do something like \`fireEvent.click(screen.getAllBy...\` when you meant to use a \`getBy\` query \`fireEvent.click(screen.getBy...\`?`,
     )
   })
+  test('HTMLElement as node', () => {
+    const elem = document.createElement('div')
+    Object.defineProperty(elem, 'ownerDocument', {
+      get: function get() {
+        return null
+      },
+    })
+
+    expect(() => getWindowFromNode(elem)).toThrowErrorMatchingInlineSnapshot(
+      `Unable to find the "window" object for the given node. Please file an issue with the code that's causing you to see this error: https://github.com/testing-library/dom-testing-library/issues/new`,
+    )
+  })
+
   test('unknown as node', () => {
     expect(() => getWindowFromNode({})).toThrowErrorMatchingInlineSnapshot(
       `The given node is not an HTMLElement, the node type is: object`,