fix: check for any Node (fixes #306)

Author: nickserv

src/__tests__/to-have-text-content.js

@@ -10,6 +10,14 @@ describe('.toHaveTextContent', () => {
     expect(queryByTestId('count-value')).not.toHaveTextContent('21')
   })
 
+  test('handles non-element nodes', () => {
+    const {container} = render(`<span>example</span>`)
+
+    expect(container.querySelector('span').firstChild).toHaveTextContent(
+      'example',
+    )
+  })
+
   test('handles negative test cases', () => {
     const {queryByTestId} = render(`<span data-testid="count-value">2</span>`)
 

src/to-have-text-content.js

@@ -1,11 +1,15 @@
-import {checkHtmlElement, getMessage, matches, normalize} from './utils'
+import {getMessage, HtmlElementTypeError, matches, normalize} from './utils'
 
 export function toHaveTextContent(
   htmlElement,
   checkWith,
   options = {normalizeWhitespace: true},
 ) {
-  checkHtmlElement(htmlElement, toHaveTextContent, this)
+  const window = htmlElement.ownerDocument.defaultView
+
+  if (!(htmlElement instanceof window.Node)) {
+    throw new HtmlElementTypeError(toHaveTextContent, this)
+  }
 
   const textContent = options.normalizeWhitespace
     ? normalize(htmlElement.textContent)