fix(deps/tests): add missing koa-compose@3 dep; add tests for koa@1

now there are tests for both `koa@1` and `koa@2`, one beer for @apiep, very thanks!

Closes tunnckoCore/koa-rest-router#10

package.json

@@ -23,6 +23,7 @@
   "dependencies": {
     "extend-shallow": "^2.0.1",
     "is-es6-generator-function": "^1.0.0",
+    "koa-compose": "^3.1.0",
     "koa-convert": "^1.2.0",
     "lazy-cache": "^2.0.1",
     "methods": "^1.1.2",
@@ -34,8 +35,9 @@
     "coveralls": "^2.11.12",
     "cz-conventional-changelog": "^1.2.0",
     "is-es6-generator-function": "^1.0.0",
-    "koa": "^2.0.0-alpha.7",
+    "koa": "^1.2.4",
     "koa-better-body": "^3.0.2",
+    "koa2": "^2.0.0-alpha.7",
     "mukla": "^0.4.1",
     "nyc": "^8.1.0",
     "pre-commit": "^1.1.3",

test.js

@@ -9,10 +9,11 @@
 
 'use strict'
 
-var request = require('supertest')
+let request = require('supertest')
 let test = require('mukla')
-let Koa = require('koa')
-var isGen = require('is-es6-generator-function')
+let koa1 = require('koa')
+let Koa = require('koa2')
+let isGen = require('is-es6-generator-function')
 let Router = require('./index')
 let router = Router()
 let app = new Koa()
@@ -346,3 +347,27 @@ test('should `.extend` throw TypeError if `router` is not correct instance', fun
   test.throws(fixture, /expect `router` to be instance of KoaBetterRouter/)
   done()
 })
+
+test('should work on koa@1 with `.legacyMiddleware`', function (done) {
+  let router = Router().addRoute('GET /is-it-working', (ctx, next) => {
+    ctx.body = 'yea, confirmed'
+    return next()
+  })
+  let app = koa1()
+
+  app.use(router.legacyMiddleware())
+  request(app.callback())
+    .get('/is-it-working')
+    .expect('yea, confirmed')
+    .expect(200, done)
+})
+
+test('should throw error on `koa@1` using `.middleware`', function (done) {
+  function fixture () {
+    let failing = Router().addRoute('GET /foo', () => {})
+    koa1().use(failing.middleware())
+  }
+  test.throws(fixture, Error)
+  test.throws(fixture, /requires a generator function/)
+  done()
+})