Rasa UI: Add unit tests (#59)

* RasaFileDownloadMessage: Add test to verify fileDownloadStarted event emission on click

* RasaText: Add test to ensure linkClicked event is emitted on link click

packages/ui/src/components/file-download-message/file-download-message.test.tsx

@@ -61,4 +61,19 @@ describe('rasa-file-download-message', () => {
     expect(anchorElement.getAttribute('href')).toBe('http://example.com/file.pdf');
     expect(anchorElement.getAttribute('download')).toBe('example.pdf');
   });
+
+  it('should emit fileDownloadStarted event on click', async () => {
+    const page = await newSpecPage({
+      components: [RasaFileDownloadMessage],
+      html: `<rasa-file-download-message file-url="https://example.com/file.pdf" file-name="file.pdf"></rasa-file-download-message>`,
+    });
+
+    const component = page.rootInstance;
+    const spy = jest.spyOn(component.fileDownloadStarted, 'emit');
+
+    const anchor = page.root.shadowRoot.querySelector('a');
+    anchor.click();
+
+    expect(spy).toHaveBeenCalled();
+  });
 });

packages/ui/src/components/text/text.test.tsx

@@ -99,4 +99,21 @@ describe('rasa-text', () => {
       </rasa-text>
     `);
   });
+
+  it('should emit linkClicked event when a link is clicked', async () => {
+    const page = await newSpecPage({
+      components: [RasaText],
+      html: `<rasa-text value="This is **bold**, an _italic_ link [Google](https://google.com)"></rasa-text>`,
+    });
+
+    const linkClickedSpy = jest.fn();
+    page.root.addEventListener('linkClicked', linkClickedSpy);
+
+    await page.waitForChanges();
+
+    const linkElement = page.root.shadowRoot.querySelector('a');
+    linkElement.click();
+
+    expect(linkClickedSpy).toHaveBeenCalled();
+  });
 });