test(urlMiddleware): Add tests according to #35

Author: nodkz

package.json

@@ -76,7 +76,7 @@
     "build-es": "rimraf es && BABEL_ENV=es babel src -d es",
     "lint": "eslint src test *.js",
     "coverage": "nyc npm run test:all",
-    "test": "BABEL_ENV=lib mocha --require test/mocha-bootload --compilers js:babel-register test/*.test.js",
+    "test": "BABEL_ENV=lib mocha --require test/mocha-bootload --compilers js:babel-register test/*.test.js test/**/*.test.js",
     "test:all": "npm run lint && npm run test",
     "semantic-release": "semantic-release pre && npm publish && semantic-release post"
   }

test/middleware/url.test.js

@@ -0,0 +1,83 @@
+import { assert } from 'chai';
+import fetchMock from 'fetch-mock';
+import { RelayNetworkLayer } from '../../src';
+import { mockReq } from '../testutils';
+import urlMiddleware from '../../src/middleware/url';
+
+describe('Middleware / url', () => {
+  describe('url option as string', () => {
+    const rnl = new RelayNetworkLayer([
+      urlMiddleware({
+        url: '/other/url',
+      }),
+    ]);
+
+    beforeEach(() => {
+      fetchMock.restore();
+
+      fetchMock.mock({
+        matcher: '/other/url',
+        response: {
+          status: 200,
+          body: { data: 'PAYLOAD' },
+          sendAsJson: true,
+        },
+        method: 'POST',
+      });
+    });
+
+    it('should work with query', () => {
+      const req1 = mockReq();
+      rnl.sendQueries([req1]).then(() => {
+        assert.equal(req1.payload.response, 'PAYLOAD');
+      });
+    });
+
+    it('should work with mutation', () => {
+      const req1 = mockReq();
+      return assert.isFulfilled(
+        rnl.sendMutation(req1).then(() => {
+          assert.equal(req1.payload.response, 'PAYLOAD');
+        })
+      );
+    });
+  });
+
+  describe('url option as thunk', () => {
+    const rnl = new RelayNetworkLayer([
+      urlMiddleware({
+        url: (_) => '/thunk_url', // eslint-disable-line
+      }),
+    ]);
+
+    beforeEach(() => {
+      fetchMock.restore();
+
+      fetchMock.mock({
+        matcher: '/thunk_url',
+        response: {
+          status: 200,
+          body: { data: 'PAYLOAD' },
+          sendAsJson: true,
+        },
+        method: 'POST',
+      });
+    });
+
+    it('should work with query', () => {
+      const req1 = mockReq();
+      rnl.sendQueries([req1]).then(() => {
+        assert.equal(req1.payload.response, 'PAYLOAD');
+      });
+    });
+
+    it('should work with mutation', () => {
+      const req1 = mockReq();
+      return assert.isFulfilled(
+        rnl.sendMutation(req1).then(() => {
+          assert.equal(req1.payload.response, 'PAYLOAD');
+        })
+      );
+    });
+  });
+});