Hello
", "contact-1"); expect(content.html).not.toContain("/api/track/open/"); }); it("injects the open-tracking pixel when a tracking token is given", () => { const content = buildEmailContent( "Hello
", "contact-1", "log-1" ); expect(content.html).toContain("/api/track/open/log-1.gif"); }); it("strips a pre-existing tracking pixel before injecting the new one", () => { const html = 'Hello
';
const content = buildEmailContent(html, "contact-1", "log-1");
expect(content.html).not.toContain("stale.gif");
expect(content.html.match(/\/api\/track\/open\//g)).toHaveLength(1);
});
it("adds an unsubscribe link when the HTML does not already have one", () => {
const content = buildEmailContent("Hello
", "contact-1"); expect(content.html).toContain("/unsubscribe/contact-1"); expect(content.headers["List-Unsubscribe"]).toContain("/unsubscribe/contact-1"); }); });