Files
WRNexusJS/packages/csr/test/nav.test.ts
T
2026-07-31 16:30:13 +05:30

150 lines
5.1 KiB
TypeScript

import { test, expect, beforeEach } from "bun:test";
import { Window } from "happy-dom";
import { NAV_RUNTIME } from "../src/nav-runtime.ts";
let win: any;
let fetchCalls: { url: string; opts: any }[];
let nextHtml: string;
function install(bodyHtml: string): void {
win = new Window({ url: "https://example.test/" });
win.document.body.innerHTML = bodyHtml;
fetchCalls = [];
nextHtml = "";
const g = globalThis as any;
g.window = win;
g.document = win.document;
g.history = win.history;
g.location = win.location;
g.DOMParser = win.DOMParser;
g.CustomEvent = win.CustomEvent;
g.fetch = win.fetch = (url: string, opts: any) => {
fetchCalls.push({ url, opts });
return Promise.resolve({
redirected: false,
url,
headers: {
get: (k: string) =>
k.toLowerCase() === "content-type" ? "text/html; charset=utf-8" : null,
},
text: () => Promise.resolve(nextHtml),
});
};
(0, eval)(NAV_RUNTIME);
}
const flush = () => new Promise((r) => setTimeout(r, 0));
beforeEach(() => {
const g = globalThis as any;
for (const k of [
"window",
"document",
"history",
"location",
"DOMParser",
"CustomEvent",
"fetch",
]) {
delete g[k];
}
});
test("intercepts an internal link click and swaps #app in place", async () => {
install(`<div id="app"><h1>Home</h1><a href="/about" id="lnk">About</a></div>`);
nextHtml =
`<!doctype html><html><head><title>About</title></head>` +
`<body><div id="app"><h1>About page</h1></div></body></html>`;
win.document.getElementById("lnk").click();
await flush();
expect(fetchCalls.length).toBe(1);
expect(fetchCalls[0]!.url).toContain("/about");
expect(fetchCalls[0]!.opts.headers["x-wrnexus-nav"]).toBe("1");
expect(win.document.getElementById("app").innerHTML).toContain("About page");
expect(win.document.title).toBe("About");
});
test("ignores cross-origin links (full navigation)", async () => {
install(`<div id="app"><a href="https://other.test/x" id="lnk">x</a></div>`);
win.document.getElementById("lnk").click();
await flush();
expect(fetchCalls.length).toBe(0);
});
test("ignores modified clicks so new-tab still works", async () => {
install(`<div id="app"><a href="/about" id="lnk">x</a></div>`);
win.document
.getElementById("lnk")
.dispatchEvent(
new win.MouseEvent("click", { bubbles: true, cancelable: true, button: 0, metaKey: true }),
);
await flush();
expect(fetchCalls.length).toBe(0);
});
test("exposes programmatic navigation", async () => {
install(`<div id="app"><h1>Home</h1></div>`);
nextHtml = `<html><head><title>Dash</title></head><body><div id="app"><h1>Dashboard</h1></div></body></html>`;
expect(typeof win.__wrnexusNavigate).toBe("function");
win.__wrnexusNavigate("/dashboard");
await flush();
expect(fetchCalls.length).toBe(1);
expect(win.document.getElementById("app").innerHTML).toContain("Dashboard");
});
test("rebinds theme controls after swapping the page", async () => {
install(`<div id="app"><a href="/about" id="lnk">About</a></div>`);
let boundRoot: unknown;
win.wireTheme = { bind: (root: unknown) => (boundRoot = root) };
nextHtml = `<html><body><div id="app"><button data-wire-theme-toggle>Theme</button></div></body></html>`;
win.document.getElementById("lnk").click();
await flush();
expect(boundRoot).toBe(win.document);
expect(win.document.querySelector("[data-wire-theme-toggle]")).not.toBeNull();
});
test("unmounts and remounts package runtimes during client navigation", async () => {
install(
`<div id="app"><div data-wrnexus-runtime="captcha">Old</div><a href="/next" id="lnk">Next</a></div>`,
);
let mounts = 0;
let unmounts = 0;
win.__wrnexusRuntimes = {
captcha: {
mount: () => mounts++,
unmount: () => unmounts++,
},
};
nextHtml = `<html><body><div id="app"><div data-wrnexus-runtime="captcha">New</div></div></body></html>`;
win.document.getElementById("lnk").click();
await flush();
expect(unmounts).toBe(1);
expect(mounts).toBe(1);
expect(win.document.getElementById("app").textContent).toContain("New");
});
test("synchronizes page styles during client navigation and preserves the current nonce", async () => {
install(
`<script nonce="current-nonce"></script>` +
`<style data-wrnexus-style-id="home" data-wrnexus-style-kind="page" nonce="current-nonce">.page{color:red}</style>` +
`<div id="app"><a href="/about" id="lnk">About</a></div>`,
);
nextHtml =
`<html><head>` +
`<style data-wrnexus-style-id="about" data-wrnexus-style-owner="About" data-wrnexus-style-kind="page" nonce="response-nonce">.page{color:blue}</style>` +
`</head><body><div id="app"><h1 class="page">About</h1></div></body></html>`;
win.document.getElementById("lnk").click();
await flush();
expect(win.document.querySelector('style[data-wrnexus-style-id="home"]')).toBeNull();
const style = win.document.querySelector('style[data-wrnexus-style-id="about"]');
expect(style).not.toBeNull();
expect(style.textContent).toContain("color:blue");
expect(style.getAttribute("nonce")).toBe("current-nonce");
});