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import { FileSystemRouter } from "bun";
import { it, expect } from "bun:test";
import path, { dirname, resolve } from "path";
import fs, { realpathSync, rmSync } from "fs";
import { tmpdir } from "os";
function createTree(basedir, paths) {
for (const end of paths) {
const abs = path.join(basedir, end);
try {
const dir = dirname(abs);
if (dir.length > 0 && dir !== "/") fs.mkdirSync(dir, { recursive: true });
} catch (e) {}
fs.writeFileSync(abs, "export default " + JSON.stringify(end) + ";\n");
}
}
it("should find files", () => {
const tempdir = realpathSync(tmpdir()) + "/";
rmSync(tempdir + "fs-router-test-01", { recursive: true, force: true });
createTree(tempdir + "fs-router-test-01", [
"a.tsx",
"b.tsx",
"abc/[id].tsx",
"abc/index.tsx",
"abc/def/[id].tsx",
"abc/def/index.tsx",
"abc/def/ghi/[id].tsx",
"abc/def/ghi/index.tsx",
"abc/def/ghi/jkl/[id].tsx",
"abc/def/ghi/jkl/index.tsx",
"[id].tsx",
"index.tsx",
"foo/[id].tsx",
"catch-all/[...id].tsx",
]);
const router = new FileSystemRouter({
dir: tempdir + "fs-router-test-01/",
fileExtensions: [".tsx"],
style: "nextjs",
});
const routes = router.routes;
const fixture = {
"/": `${tempdir}fs-router-test-01/index.tsx`,
"/[id]": `${tempdir}fs-router-test-01/[id].tsx`,
"/a": `${tempdir}fs-router-test-01/a.tsx`,
"/abc": `${tempdir}fs-router-test-01/abc/index.tsx`,
"/abc/[id]": `${tempdir}fs-router-test-01/abc/[id].tsx`,
"/abc/def/[id]": `${tempdir}fs-router-test-01/abc/def/[id].tsx`,
"/abc/def/ghi": `${tempdir}fs-router-test-01/abc/def/ghi/index.tsx`,
"/abc/def/ghi/[id]": `${tempdir}fs-router-test-01/abc/def/ghi/[id].tsx`,
"/abc/def/ghi/jkl": `${tempdir}fs-router-test-01/abc/def/ghi/jkl/index.tsx`,
"/abc/def/ghi/jkl/[id]": `${tempdir}fs-router-test-01/abc/def/ghi/jkl/[id].tsx`,
"/abc/def": `${tempdir}fs-router-test-01/abc/def/index.tsx`,
"/b": `${tempdir}fs-router-test-01/b.tsx`,
"/foo/[id]": `${tempdir}fs-router-test-01/foo/[id].tsx`,
"/catch-all/[...id]": `${tempdir}fs-router-test-01/catch-all/[...id].tsx`,
};
for (const route in fixture) {
if (!(route in routes)) {
throw new Error(`Route ${route} not found`);
}
expect(routes[route]).toBe(fixture[route]);
}
expect(Object.keys(routes).length).toBe(Object.keys(fixture).length);
expect(router.match("/never/gonna/give/you/up")).toBe(null);
expect(
router.match(
"/catch-all/we-are-no-strangers-to-love/you/know/the/rules/and/so/do/i",
).params.id,
).toBe("we-are-no-strangers-to-love/you/know/the/rules/and/so/do/i");
expect(router.match("/").name).toBe("/");
expect(router.match("/index").name).toBe("/");
expect(router.match("/index/").name).toBe("/");
expect(router.match("/a").name).toBe("/a");
expect(router.match("/b").name).toBe("/b");
expect(router.match("/abc/123").params.id).toBe("123");
});
it("should support dynamic routes", () => {
// set up the test
const tempdir = realpathSync(tmpdir()) + "/";
rmSync(tempdir + "fs-router-test-02", { recursive: true, force: true });
createTree(tempdir + "fs-router-test-02", [
"index.tsx",
"posts/[id].tsx",
"posts.tsx",
]);
const router = new Bun.FileSystemRouter({
dir: tempdir + "fs-router-test-02/",
style: "nextjs",
});
const {
name,
params: { id },
filePath,
} = router.match("/posts/hello-world");
expect(id).toBe("hello-world");
expect(name).toBe("/posts/[id]");
expect(filePath).toBe(`${tempdir}fs-router-test-02/posts/[id].tsx`);
});
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