add coercion tests

test/coercion.spec.ts

@@ -0,0 +1,71 @@
+import * as path from 'path';
+import * as express from 'express';
+import { expect } from 'chai';
+import * as request from 'supertest';
+import { createApp } from './common/app';
+
+const packageJson = require('../package.json');
+
+describe.only(packageJson.name, () => {
+  let app = null;
+  let basePath = null;
+
+  before(async () => {
+    // Set up the express app
+    const apiSpec = path.join('test', 'resources', 'coercion.yaml');
+    app = await createApp({ apiSpec }, 3005);
+    basePath = app.basePath;
+
+    // Define new coercion routes
+    app.use(
+      `${basePath}/coercion`,
+      express
+        .Router()
+        .post(`/pets`, (req, res) => res.json(req.body))
+        .post(`/pets_string_boolean`, (req, res) => res.json(req.body)),
+    );
+  });
+
+  after(() => {
+    app.server.close();
+  });
+
+  it('should coerce is_cat to boolean since it is defined as a boolean in the spec', async () =>
+    request(app)
+      .post(`${basePath}/coercion/pets`)
+      .send({
+        name: 'test',
+        is_cat: 'true',
+      })
+      .expect(200)
+      .then(r => {
+        expect(r.body.is_cat).to.be.a('boolean');
+        expect(r.body.is_cat).to.be.equal(true);
+      }));
+
+  it('should keep is_cat as boolean', async () =>
+    request(app)
+      .post(`${basePath}/coercion/pets`)
+      .send({
+        name: 'test',
+        is_cat: true,
+      })
+      .expect(200)
+      .then(r => {
+        expect(r.body.is_cat).to.be.a('boolean');
+        expect(r.body.is_cat).to.be.equal(true);
+      }));
+
+  it('should coerce a is_cat from boolean to string since it is defined as such in the spec', async () =>
+    request(app)
+      .post(`${basePath}/coercion/pets_string_boolean`)
+      .send({
+        name: 'test',
+        is_cat: true,
+      })
+      .expect(200)
+      .then(r => {
+        expect(r.body.is_cat).to.be.a('string');
+        expect(r.body.is_cat).to.be.equal('true');
+      }));
+});

test/common/app.common.ts

@@ -1,4 +1,4 @@
-import * as http from 'http'
+import * as http from 'http';
 import * as express from 'express';
 const BASE_PATH = '/v1';
 
@@ -45,11 +45,13 @@ export function routes(app) {
   app.get(`${basePath}/pets`, function(req, res, next) {
     res.json({
       test: 'hi',
+      ...req.body,
     });
   });
 
   app.post(`${basePath}/pets`, function(req, res, next) {
     res.json({
+      ...req.body,
       id: 'new-id',
     });
   });

test/common/app.ts

@@ -23,7 +23,7 @@ export async function createApp(opts?: any, port: number = 3000) {
 
   // Register error handler
   app.use((err, req, res, next) => {
-    res.status(err.status).json({
+    res.status(err.status || 500).json({
       errors: err.errors,
     });
   });

test/resources/coercion.yaml

@@ -0,0 +1,67 @@
+openapi: '3.0.1'
+info:
+  version: 1.0.0
+  title: Swagger Petstore
+  description: A sample API that uses a petstore as an example to demonstrate features in the OpenAPI 3.0 specification
+
+servers:
+  - url: /v1/
+
+paths:
+  /coercion/pets:
+    post:
+      description: Creates a new pet in the store.  Duplicates are allowed
+      operationId: addPet
+      requestBody:
+        description: Pet to add to the store
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/Pet'
+      responses:
+        '200':
+          description: pet response
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Pet'
+
+  /coercion/pets_string_boolean:
+    post:
+      description: Creates a new pet in the store.  Duplicates are allowed
+      operationId: addPet
+      requestBody:
+        description: Pet to add to the store
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/PetStringBoolean'
+      responses:
+        '200':
+          description: pet response
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/PetStringBoolean'
+
+components:
+  schemas:
+    Pet:
+      required:
+        - name
+      properties:
+        name:
+          type: string
+        is_cat:
+          type: boolean
+
+    PetStringBoolean:
+      required:
+        - name
+      properties:
+        name:
+          type: string
+        is_cat:
+          type: string