Adding HelmChartIcon tests

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

packages/core/src/renderer/components/+helm-charts/__tests__/icon.test.tsx

@@ -0,0 +1,56 @@
+import React from 'react';
+import { render, screen } from '@testing-library/react';
+import { HelmChartIcon } from '../icon';
+
+const mainImageSrc = 'https://example.com/main-picture.jpg';
+const mainPngImageSrc = 'https://example.com/main-picture.png';
+const invalidImageSrc = 'file://invalid-image-url.png';
+const svgImageSrc = 'https://example.com/main-picture.svg';
+
+describe('HelmChartIcon', () => {
+  it('renders the placeholder image by default', () => {
+    render(<HelmChartIcon />);
+    const imageContainer = screen.getByTestId('image-container');
+    expect(imageContainer.style.backgroundImage).toContain("data:image/svg+xml");
+  });
+
+  it("renders img tag when image url is valid", () => {
+    render(<HelmChartIcon imageUrl={mainImageSrc} />);
+    const mainImage = screen.getByRole<HTMLImageElement>('img');
+    expect(mainImage).toBeInTheDocument();
+  });
+
+  it("renders jpg image when its loaded", () => {
+    render(<HelmChartIcon imageUrl={mainImageSrc} />);
+
+    const imageContainer = screen.getByTestId('image-container');
+    const mainImage = screen.getByRole<HTMLImageElement>('img');
+
+    mainImage.dispatchEvent(new Event('load'));
+    expect(imageContainer.style.backgroundImage).toBe('url(https://example.com/main-picture.jpg)');
+  })
+
+  it("renders png image when its loaded", () => {
+    render(<HelmChartIcon imageUrl={mainPngImageSrc} />);
+
+    const imageContainer = screen.getByTestId('image-container');
+    const mainImage = screen.getByRole<HTMLImageElement>('img');
+    
+    mainImage.dispatchEvent(new Event('load'));
+    expect(imageContainer.style.backgroundImage).toBe('url(https://example.com/main-picture.png)');
+  })
+
+  it("does not render invalid image url", () => {
+    render(<HelmChartIcon imageUrl={invalidImageSrc} />);
+
+    const mainImage = screen.queryByRole<HTMLImageElement>('img');
+    expect(mainImage).not.toBeInTheDocument();
+  })
+
+  it("does not render svg image", () => {
+    render(<HelmChartIcon imageUrl={svgImageSrc} />);
+
+    const mainImage = screen.queryByRole<HTMLImageElement>('img');
+    expect(mainImage).not.toBeInTheDocument();
+  })
+});