Merge pull request #2 from labcodes/feature/add-tests

Feature/add tests

.babelrc

@@ -1,5 +1,14 @@
 {
-  "presets": ["@babel/preset-env"],
+  "presets": [
+    [
+      "@babel/preset-env",
+      {
+        "targets": {
+          "node": "current",
+        },
+      },
+    ],
+  ],
   "env": {
     "test": {
       "plugins": ["@babel/plugin-transform-runtime"]

.coveralls.yml

@@ -0,0 +1 @@
+repo_token: Bn0yjmlwMyda9F4v9czf1TI4nqoRdKSsa

.gitignore

@@ -53,6 +53,7 @@ typings/
 
 # Yarn Integrity file
 .yarn-integrity
+yarn.lock
 
 # dotenv environment variables file
 .env

.travis.yml

@@ -0,0 +1,5 @@
+language: node_js
+node_js:
+  - "current"
+script:
+  - npm run coveralls

README.md

@@ -1,8 +1,9 @@
 # react-redux-api-tools
 
-This project provides a middleware and a request helper to streamline react-redux data fetching.
+[![Coverage Status](https://coveralls.io/repos/github/labcodes/react-redux-api-tools/badge.svg?branch=master)](https://coveralls.io/github/labcodes/react-redux-api-tools?branch=master) [![Build Status](https://travis-ci.org/labcodes/react-redux-api-tools.svg?branch=master)](https://travis-ci.org/labcodes/react-redux-api-tools)
+
 
-*It's still on beta, so be aware of that ;)*
+This project provides a middleware and a request helper to streamline react-redux data fetching.
 
 ### Installing
 

__tests__/api.test.js

@@ -0,0 +1,82 @@
+import { fetchFromApi } from '../lib/api';
+
+describe('fetchFromApi', () => {
+  beforeEach(() => {
+    fetch.resetMocks();
+  });
+
+  it('should resolve fetch and return data with error', async () => {
+    fetch.mockResolvedValue({
+      status: 400,
+      message: 'The name is empty'
+    });
+
+    const requestData = {
+      method: 'POST',
+      body: { name: '' }
+    };
+    try {
+      await fetchFromApi('http://localhost:3000/products', requestData);
+    } catch (e) {
+      expect(e).toEqual({
+        status: 400,
+        message: 'The name is empty'
+      });
+    }
+  });
+
+  it('should resolve fetch and return data', async () => {
+    fetch.mockResolvedValue({
+      data: [{ name: 'Xbox' }]
+    });
+
+    const response = await fetchFromApi('http://localhost:3000/products');
+
+    expect(response).toEqual({
+      data: [{ name: 'Xbox' }]
+    });
+  });
+
+  it('should define application/json as default headers', async () => {
+    fetch.mockResolvedValue({
+      data: [{ name: 'Xbox' }]
+    });
+    let requestData = {};
+
+    const response = await fetchFromApi('http://localhost:3000/products', requestData);
+
+    expect(requestData).toEqual({
+      headers: {
+        'content-type': 'application/json'
+      }
+    });
+  });
+
+  it('should not overwrite content type if specified in requestData', async () => {
+    fetch.mockResolvedValue({
+      data: [{ name: 'Xbox' }]
+    });
+    let requestData = {
+      headers: {
+        'content-type': 'application/x-www-form-urlencoded'
+      }
+    };
+
+    const response = await fetchFromApi('http://localhost:3000/products', requestData);
+
+    expect(requestData).toEqual({
+      headers: {
+        'content-type': 'application/x-www-form-urlencoded'
+      }
+    });
+  });
+
+  it('should reject fetch and catch by error', async () => {
+    fetch.mockRejectedValue(new Error('404 Not found'));
+    try {
+      await fetchFromApi('http://localhost:3000/products/999');
+    } catch (e) {
+      expect(e).toEqual(new Error('404 Not found'));
+    }
+  });
+});