Merge Jest configuration from Next version

1 files changed, 46 insertions, 0 deletions

diff --git a/vnext/src/ui/__tests__/MessageInput.test.js b/vnext/src/ui/__tests__/MessageInput.test.js
new file mode 100644
index 00000000..1b5b0442
--- /dev/null
+++ b/vnext/src/ui/__tests__/MessageInput.test.js
@@ -0,0 +1,46 @@
+import { render, screen, fireEvent, waitFor } from '@testing-library/react';
+
+import MessageInput from '../MessageInput';
+
+test('Gives immediate focus on to textarea on load', async () => {
+    let draft = 'draft';
+    render(<MessageInput text={draft} onSend={async () => { return true; }} />);
+    expect(screen.getByText(draft)).toHaveFocus();
+});
+
+
+test('Submits on ctrl-enter and pass validation', async () => {
+    let result = false;
+    const onSend = jest.fn(async ({ body }) => { result = body === 'YO'; return result; });
+    let draft = 'draft';
+    render(<MessageInput onSend={onSend} text={draft} />);
+    let textarea = screen.getByText(draft);
+    fireEvent.change(textarea, { target: { value: 'HI' } });
+    // this event should not submit
+    fireEvent.keyPress(textarea, {
+        charCode: 13,
+        which: 13,
+        keyCode: 13
+    });
+    // this event should submit
+    fireEvent.keyPress(textarea, {
+        charCode: 13,
+        which: 13,
+        keyCode: 13,
+        ctrlKey: true
+    });
+    expect(onSend).toHaveBeenCalledTimes(1);
+    expect(result).toBe(false);
+    fireEvent.change(textarea, { target: { value: 'YO' } });
+    fireEvent.keyPress(textarea, {
+        charCode: 13,
+        which: 13,
+        keyCode: 13,
+        ctrlKey: true
+    });
+    expect(onSend).toHaveBeenCalledTimes(2);
+    expect(result).toBe(true);
+    await waitFor(() => expect(textarea.textContent).toEqual(''));
+    textarea.focus();
+    expect(textarea).toHaveFocus();
+});