shows relative images in markdown

test/markdown.test.ts

@@ -70,4 +70,31 @@ describe('renderMarkdown', () => {
     expect(html).not.toContain('<table')
     expect(html).toContain('<p>a | b not a table</p>')
   })
+  it('resolves a relative image against the document folder', () => {
+    const html = renderMarkdown('![Forge](forge-app-config.png)', 'docs/how-to')
+    expect(html).toContain('data-src="docs/how-to/forge-app-config.png"')
+    expect(html).not.toContain(' src=')
+  })
+
+  it('keeps the image title out of the path and walks up a parent folder', () => {
+    const html = renderMarkdown('![c](../img/a%20b.png "A title")', 'docs/how-to')
+    expect(html).toContain('data-src="docs/img/a b.png"')
+    expect(html).toContain('title="A title"')
+  })
+
+  it('reads a leading slash as the project root', () => {
+    expect(renderMarkdown('![c](/img/a.png)', 'docs/how-to')).toContain('data-src="img/a.png"')
+  })
+
+  it('leaves a remote image on src', () => {
+    const html = renderMarkdown('![c](https://x.com/a.png)', 'docs')
+    expect(html).toContain('src="https://x.com/a.png"')
+    expect(html).not.toContain('data-src')
+  })
+
+  it('keeps a link title out of the href', () => {
+    const html = renderMarkdown('[a](https://x.com "Home")')
+    expect(html).toContain('href="https://x.com"')
+    expect(html).toContain('title="Home"')
+  })
 })