Created shortUrlCreation reducer test

src/short-urls/reducers/shortUrlCreation.js

@@ -3,10 +3,10 @@ import PropTypes from 'prop-types';
 import shlinkApiClient from '../../api/ShlinkApiClient';
 
 /* eslint-disable padding-line-between-statements, newline-after-var */
-const CREATE_SHORT_URL_START = 'shlink/createShortUrl/CREATE_SHORT_URL_START';
+export const CREATE_SHORT_URL_START = 'shlink/createShortUrl/CREATE_SHORT_URL_START';
-const CREATE_SHORT_URL_ERROR = 'shlink/createShortUrl/CREATE_SHORT_URL_ERROR';
+export const CREATE_SHORT_URL_ERROR = 'shlink/createShortUrl/CREATE_SHORT_URL_ERROR';
-const CREATE_SHORT_URL = 'shlink/createShortUrl/CREATE_SHORT_URL';
+export const CREATE_SHORT_URL = 'shlink/createShortUrl/CREATE_SHORT_URL';
-const RESET_CREATE_SHORT_URL = 'shlink/createShortUrl/RESET_CREATE_SHORT_URL';
+export const RESET_CREATE_SHORT_URL = 'shlink/createShortUrl/RESET_CREATE_SHORT_URL';
 /* eslint-enable padding-line-between-statements, newline-after-var */
 
 export const createShortUrlResultType = PropTypes.shape({
@@ -29,6 +29,7 @@ export default function reducer(state = defaultState, action) {
       return {
         ...state,
         saving: true,
+        error: false,
       };
     case CREATE_SHORT_URL_ERROR:
       return {

test/short-urls/reducers/shortUrlCreation.test.js

@@ -0,0 +1,94 @@
+import * as sinon from 'sinon';
+import reducer, {
+  CREATE_SHORT_URL_START,
+  CREATE_SHORT_URL_ERROR,
+  CREATE_SHORT_URL,
+  RESET_CREATE_SHORT_URL,
+  _createShortUrl,
+  resetCreateShortUrl,
+} from '../../../src/short-urls/reducers/shortUrlCreation';
+
+describe('shortUrlCreationReducer', () => {
+  describe('reducer', () => {
+    it('returns loading on CREATE_SHORT_URL_START', () => {
+      expect(reducer({}, { type: CREATE_SHORT_URL_START })).toEqual({
+        saving: true,
+        error: false,
+      });
+    });
+
+    it('returns error on CREATE_SHORT_URL_ERROR', () => {
+      expect(reducer({}, { type: CREATE_SHORT_URL_ERROR })).toEqual({
+        saving: false,
+        error: true,
+      });
+    });
+
+    it('returns result on CREATE_SHORT_URL', () => {
+      expect(reducer({}, { type: CREATE_SHORT_URL, result: 'foo' })).toEqual({
+        saving: false,
+        error: false,
+        result: 'foo',
+      });
+    });
+
+    it('returns default state on RESET_CREATE_SHORT_URL', () => {
+      expect(reducer({}, { type: RESET_CREATE_SHORT_URL })).toEqual({
+        result: null,
+        saving: false,
+        error: false,
+      });
+    });
+
+    it('returns provided state on unknown action', () =>
+      expect(reducer({}, { type: 'unknown' })).toEqual({}));
+  });
+
+  describe('resetCreateShortUrl', () => {
+    it('returns proper action', () =>
+      expect(resetCreateShortUrl()).toEqual({ type: RESET_CREATE_SHORT_URL }));
+  });
+
+  describe('createShortUrl', () => {
+    const createApiClientMock = (result) => ({
+      createShortUrl: sinon.fake.returns(result),
+    });
+    const dispatch = sinon.spy();
+
+    afterEach(() => dispatch.resetHistory());
+
+    it('calls API on success', async () => {
+      const expectedDispatchCalls = 2;
+      const result = 'foo';
+      const apiClientMock = createApiClientMock(Promise.resolve(result));
+      const dispatchable = _createShortUrl(apiClientMock, {});
+
+      await dispatchable(dispatch);
+
+      expect(apiClientMock.createShortUrl.callCount).toEqual(1);
+
+      expect(dispatch.callCount).toEqual(expectedDispatchCalls);
+      expect(dispatch.getCall(0).args).toEqual([{ type: CREATE_SHORT_URL_START }]);
+      expect(dispatch.getCall(1).args).toEqual([{ type: CREATE_SHORT_URL, result }]);
+    });
+
+    it('throws on error', async () => {
+      const expectedDispatchCalls = 2;
+      const error = 'Error';
+      const apiClientMock = createApiClientMock(Promise.reject(error));
+      const dispatchable = _createShortUrl(apiClientMock, {});
+
+      try {
+        await dispatchable(dispatch);
+      } catch (e) {
+        expect(e).toEqual(error);
+      }
+
+      expect(apiClientMock.createShortUrl.callCount).toEqual(1);
+
+      expect(dispatch.callCount).toEqual(expectedDispatchCalls);
+      expect(dispatch.getCall(0).args).toEqual([{ type: CREATE_SHORT_URL_START }]);
+      expect(dispatch.getCall(1).args).toEqual([{ type: CREATE_SHORT_URL_ERROR }]);
+    });
+  });
+});