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routing.test.ts
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199 lines (175 loc) · 5.13 KB
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import { describe, expect, it } from "./test-deps.ts";
import { invert, mustEnd, parse } from "./index.ts";
describe("Router", () => {
type Route =
| { type: "home" }
| { type: "about" }
| { type: "albums" }
| { type: "album"; id: string }
| { type: "albumArt"; id: string };
function* Home() {
yield "/";
yield mustEnd;
return { type: "home" } as Route;
}
function* About() {
yield "/about";
yield mustEnd;
return { type: "about" } as Route;
}
const Albums = {
*List() {
yield "/albums";
yield mustEnd;
return { type: "albums" } as Route;
},
*ItemPrefix() {
yield "/albums/";
const [id]: [string] = yield /^\d+/;
return { id };
},
*Item() {
const { id }: { id: string } = yield Albums.ItemPrefix;
yield mustEnd;
return { type: "album", id } as Route;
},
*ItemArt() {
const { id }: { id: string } = yield Albums.ItemPrefix;
yield "/art";
yield mustEnd;
return { type: "albumArt", id } as Route;
},
};
function* AlbumRoutes() {
return yield [Albums.List, Albums.Item, Albums.ItemArt];
}
function* Route() {
return yield [Home, About, AlbumRoutes];
}
it("works with home", () => {
expect(parse("/", Route())).toEqual({
success: true,
result: { type: "home" },
remaining: "",
});
});
it("works with about", () => {
expect(parse("/about", Route())).toEqual({
success: true,
result: { type: "about" },
remaining: "",
});
});
it("works with albums", () => {
expect(parse("/albums", Route())).toEqual({
success: true,
result: { type: "albums" },
remaining: "",
});
});
it("works with album for id", () => {
expect(parse("/albums/42", Route())).toEqual({
success: true,
result: { type: "album", id: "42" },
remaining: "",
});
});
it("works with album art for id", () => {
expect(parse("/albums/42/art", Route())).toEqual({
success: true,
result: { type: "albumArt", id: "42" },
remaining: "",
});
});
});
describe("Router inversion", () => {
type Route =
| { type: "home" }
| { type: "about" }
| { type: "terms" }
| { type: "albums" }
| { type: "album"; id: string }
| { type: "albumArt"; id: string };
function* Home() {
yield "/";
yield mustEnd;
return { type: "home" } as Route;
}
function* About() {
yield "/about";
yield mustEnd;
return { type: "about" } as Route;
}
function* Terms() {
yield "/legal";
yield "/terms";
yield mustEnd;
return { type: "terms" } as Route;
}
function* AlbumItem() {
yield "/albums/";
const [id]: [string] = yield /^\d+/;
return { type: "album", id };
}
function* blogPrefix() {
yield "/blog";
}
function* BlogHome() {
yield blogPrefix;
yield mustEnd;
return { type: "blog" };
}
function* BlogArticle() {
yield blogPrefix;
yield "/";
const [slug]: [string] = yield /^.+/;
return { type: "blogArticle", slug };
}
function* BlogRoutes() {
return yield [BlogHome, BlogArticle];
}
function* Routes() {
return yield [Home, About, Terms];
}
function* DoubleNested() {
return yield [BlogRoutes, Routes];
}
it("works with single route definition", () => {
expect(invert({ type: "home" }, Home())).toEqual("/");
expect(invert({ type: "about" }, About())).toEqual("/about");
expect(invert({ type: "terms" }, Terms())).toEqual("/legal/terms");
expect(invert({ type: "BLAH" }, Terms())).toBeNull();
});
it("works with single route definition with param", () => {
expect(invert({ type: "album", id: "123" }, AlbumItem())).toEqual(
"/albums/123",
);
expect(invert({ type: "album", id: "678" }, AlbumItem())).toEqual(
"/albums/678",
);
expect(invert({ type: "album", id: "abc" }, AlbumItem())).toBeNull();
expect(invert({ type: "BLAH", id: "123" }, AlbumItem())).toBeNull();
});
it("works with nested routes", () => {
expect(invert({ type: "home" }, Routes())).toEqual("/");
expect(invert({ type: "about" }, Routes())).toEqual("/about");
expect(invert({ type: "terms" }, Routes())).toEqual("/legal/terms");
expect(invert({ type: "BLAH" }, Routes())).toBeNull();
});
it("works with routes with nested prefix", () => {
expect(invert({ type: "blog" }, BlogHome())).toEqual("/blog");
expect(invert({ type: "blogArticle", slug: "hello-world" }, BlogArticle()))
.toEqual("/blog/hello-world");
expect(invert({ type: "blog" }, BlogRoutes())).toEqual("/blog");
expect(invert({ type: "blogArticle", slug: "hello-world" }, BlogRoutes()))
.toEqual("/blog/hello-world");
expect(invert({ type: "BLAH" }, BlogRoutes())).toBeNull();
});
it("all works with double nested routes", () => {
expect(invert({ type: "home" }, DoubleNested())).toEqual("/");
expect(invert({ type: "blog" }, DoubleNested())).toEqual("/blog");
expect(invert({ type: "blogArticle", slug: "hello-world" }, DoubleNested()))
.toEqual("/blog/hello-world");
expect(invert({ type: "BLAH" }, DoubleNested())).toBeNull();
});
});