import { PathTree } from "./PathTree";

import * as chai from "chai";

import "mocha";

const expect = chai.expect;

describe('PathTree', function () {

it('should insert and return a value', function () {

const tree = new PathTree();

tree.insert("/test");

expect(tree.contains("/test")).to.be.true;

expect(tree.contains("/tes")).to.be.false;

expect(tree.contains("/test/extra")).to.be.false;

expect(tree.contains("/other")).to.be.false;

});

it('should enforce a leading slash', function () {

const tree = new PathTree();

tree.insert("/test");

expect(() => { tree.insert("test"); }).to.throw("Path needs a leading slash");

});

it('should handle wildcard entries', function () {

const tree = new PathTree();

tree.insert("/foo");

tree.insert("/foo/:wildcard");

tree.insert("/foo/:wildcard/bar");

expect(tree.contains('/foo')).to.be.true;

expect(tree.contains('/foo/1234')).to.be.true;

expect(tree.contains('/foo/1234/bar')).to.be.true;

expect(tree.contains('/foo/1234/blutti')).to.be.false;

const found = tree.find('/foo/1234/bar', null);

expect(found).to.not.be.null;

expect(found!.path).to.equal('/foo/:wildcard/bar');

});

it('should capture wildcard parameters', function () {

const tree = new PathTree();

tree.insert("/foo/:wildcard/bar");

const capture = new Map<string, string>();

expect(tree.find('/foo/1234/bar', capture)).to.not.be.null;

expect(Array.from(capture.keys())).to.deep.equal(['wildcard']);

expect(Array.from(capture.values())).to.deep.equal(['1234']);

});

it('should enforce the same wildcard for all paths', function () {

const tree = new PathTree();

tree.insert("/foo");

tree.insert("/foo/:wildcard1");

expect(() => { tree.insert("/foo/:wildcard2") }).to.throw("Wildcard parameter is not matching");

});

it('should not allow the same wildcard name on different levels', function () {

const tree = new PathTree();

expect(() => { tree.insert("/foo/:a/bar/:a") }).to.throw("Cannot have the same wildcard on different levels");

});

it('should allow storing data in node', function () {

const tree = new PathTree();

const inserted = tree.insert("/foo");

inserted.data = "bar";

const found = tree.find("/foo", null);

expect(found).to.not.be.null;

expect(found!.data).to.equal("bar");

});

});