[ADD] router: initial implementation

tests/router/router.test.ts

@@ -0,0 +1,39 @@
+import { matchRoute, routeToURL } from "../../src/router/plugin";
+
+describe("routeToURL", () => {
+    test("simple non parameterized path", () => {
+        expect(routeToURL("/abc", {})).toBe("/abc");
+        expect(routeToURL("/abc/def", {})).toBe("/abc/def");
+        expect(routeToURL("/abc", {val: 12})).toBe("/abc");
+    });
+
+    test("simple parameterized path", () => {
+        expect(routeToURL("/abc/{{def}}", {def: 34})).toBe("/abc/34");
+    });
+
+});
+
+describe("match routes", () => {
+  test("properly match simple routes", () => {
+    // simple route
+    expect(matchRoute({ path: "/home", name: "someroute" }, "/home")).toEqual({});
+
+    // no match
+    expect(matchRoute({ path: "/home", name: "someroute" }, "/otherpath")).toEqual(false);
+
+    // fallback route
+    expect(matchRoute({ path: "*", name: "someroute" }, "somepath")).toEqual({});
+  });
+
+  test("match some parameterized routes", () => {
+    expect(matchRoute({ path: "/invoices/{{id}}", name: "someroute" }, "/invoices/3")).toEqual({
+      id: "3"
+    });
+  });
+
+  test("can convert to number if needed", () => {
+    expect(matchRoute({ path: "/invoices/{{id.number}}", name: "someroute" }, "/invoices/3")).toEqual({
+      id: 3
+    });
+  });
+});