docs: add test case for #493 (#496)

Author: timdeschryver

Diff for: projects/testing-library/tests/issues/issue-493.spec.ts

@@ -0,0 +1,27 @@
+import { HttpClient, provideHttpClient } from '@angular/common/http';
+import { provideHttpClientTesting } from '@angular/common/http/testing';
+import { Component, input } from '@angular/core';
+import { render, screen } from '../../src/public_api';
+
+test('succeeds', async () => {
+  await render(DummyComponent, {
+    inputs: {
+      value: 'test',
+    },
+    providers: [provideHttpClientTesting(), provideHttpClient()],
+  });
+
+  expect(screen.getByText('test')).toBeVisible();
+});
+
+@Component({
+  selector: 'atl-dummy',
+  standalone: true,
+  imports: [],
+  template: '<p>{{ value() }}</p>',
+})
+class DummyComponent {
+  value = input.required<string>();
+  // @ts-ignore
+  constructor(private http: HttpClient) {}
+}