add tests

test/app.ts

@@ -0,0 +1,48 @@
+var express = require('express');
+var path = require('path');
+var cookieParser = require('cookie-parser');
+var bodyParser = require('body-parser');
+var logger = require('morgan');
+const http = require('http');
+const { OpenApiMiddleware } = require('../');
+
+var app = express();
+
+app.use(bodyParser.json());
+app.use(logger('dev'));
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+app.use(cookieParser());
+
+app.use(express.static(path.join(__dirname, 'public')));
+
+// const ov = OpenAPIRequestValidator();
+// var router = express.Router();
+
+app.use(
+  new OpenApiMiddleware({
+    apiSpecPath: './openapi.yaml',
+    validate: true,
+    enableObjectCoercion: true, // should be default
+    errorTransformer: (a, b) => {
+      console.log('---error trans---', a, b);
+
+      return a;
+    }
+  }).middleware()
+);
+/* GET home page. */
+app.get('/v1/pets', function(req, res, next) {
+  console.log('at /v1/pets here');
+  res.json({
+    test: 'hi'
+  });
+});
+
+export const server = http.createServer(app);
+server.listen(3000);
+console.log('Listening on port 3000');
+console.log('Try visiting http://localhost:3000/greet?name=Jason');
+console.log('-----STARTED[---');
+
+export default app;

test/middleware.spec.ts

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+const expect = require('chai').expect;
+const { OpenApiMiddleware } = require('../');
+const packageJson = require('../package.json');
+
+describe(packageJson.name, () => {
+  it('existing spec', async () => {
+    const oam = new OpenApiMiddleware({
+      apiSpecPath: './openapi.yaml',
+      validate: true,
+      enableObjectCoercion: true // should be default
+    });
+
+    expect(oam)
+      .to.have.property('middleware')
+      .that.is.a('function');
+  });
+
+  it('missing spec', async () => {
+    const createMiddleware = () =>
+      new OpenApiMiddleware({
+        apiSpecPath: './not-found.yaml',
+        validate: true,
+        enableObjectCoercion: true // should be default
+      }).middleware();
+
+    expect(createMiddleware).to.throw(
+      'spec could not be read at ./not-found.yaml'
+    );
+  });
+});

test/routes.spec.ts

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+const expect = require('chai').expect;
+import * as request from 'supertest';
+import app, { server } from './app';
+const { OpenApiMiddleware } = require('../');
+const packageJson = require('../package.json');
+
+describe(packageJson.name, () => {
+  after(done => {
+    console.log('done', app);
+    server.close();
+    done();
+  });
+  it(`should test something`, () => {
+    expect('a').to.equal('a');
+  });
+
+  it('should throw 400 on missing required query parameter', async () =>
+    request(app)
+      .get('/v1/pets')
+      .set('Accept', 'application/json')
+      .expect('Content-Type', /json/)
+      .expect(400)
+      .then(r => {
+        const e = r.body;
+        expect(e).to.have.length(2);
+        expect(e[0].path).to.equal('limit');
+        expect(e[1].path).to.equal('test');
+      }));
+
+  it('should respond with json on proper get call', async () =>
+    request(app)
+      .get('/v1/pets')
+      .query({
+        test: 'one',
+        limit: 10
+      })
+      .set('Accept', 'application/json')
+      .expect('Content-Type', /json/)
+      .expect(200));
+
+  it('should return 200 with unknown query parameter', async () =>
+    request(app)
+      .get('/v1/pets')
+      .query({
+        test: 'one',
+        limit: 10,
+        bad_param: 'test'
+      })
+      .set('Accept', 'application/json')
+      .expect('Content-Type', /json/)
+      .expect(200));
+
+  it('should return 400 when improper range specified', async () =>
+    request(app)
+      .get('/v1/pets')
+      .query({
+        test: 'one',
+        limit: 2
+      })
+      .set('Accept', 'application/json')
+      .expect('Content-Type', /json/)
+      .expect(400)
+      .then(r => {
+        const e = r.body;
+        expect(e).to.have.length(1);
+        expect(e[0].path).to.equal('limit');
+        expect(e[0].message).to.equal('should be >= 5');
+      }));
+});