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Added tests for new use cases

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This commit is contained in:
Alejandro Celaya
2019-04-28 12:40:50 +02:00
parent 20820c47d4
commit 78c34a342d
6 changed files with 76 additions and 31 deletions
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44
test/servers/reducers/server.test.js
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@@ -4,17 +4,17 @@ import reducer, {
deleteServer,
listServers,
createServers,
FETCH_SERVERS,
FETCH_SERVERS, FETCH_SERVERS_START,
} from '../../../src/servers/reducers/server';
describe('serverReducer', () => {
const payload = {
const list = {
abc123: { id: 'abc123' },
def456: { id: 'def456' },
};
const expectedFetchServersResult = { type: FETCH_SERVERS, payload };
const expectedFetchServersResult = { type: FETCH_SERVERS, list };
const ServersServiceMock = {
listServers: jest.fn(() => payload),
listServers: jest.fn(() => list),
createServer: jest.fn(),
deleteServer: jest.fn(),
createServers: jest.fn(),
@@ -22,7 +22,7 @@ describe('serverReducer', () => {
describe('reducer', () => {
it('returns servers when action is FETCH_SERVERS', () =>
expect(reducer({}, { type: FETCH_SERVERS, payload })).toEqual(payload));
expect(reducer({}, { type: FETCH_SERVERS, list })).toEqual({ loading: false, list }));
});
describe('action creators', () => {
@@ -34,14 +34,40 @@ describe('serverReducer', () => {
});
describe('listServers', () => {
it('fetches servers and returns them as part of the action', () => {
const result = listServers(ServersServiceMock)();
const axios = { get: jest.fn().mockResolvedValue({ data: [] }) };
const dispatch = jest.fn();
expect(result).toEqual(expectedFetchServersResult);
beforeEach(() => {
axios.get.mockClear();
dispatch.mockReset();
});
it('fetches servers from local storage when found', async () => {
await listServers(ServersServiceMock, axios)()(dispatch);
expect(dispatch).toHaveBeenCalledTimes(2);
expect(dispatch).toHaveBeenNthCalledWith(1, { type: FETCH_SERVERS_START });
expect(dispatch).toHaveBeenNthCalledWith(2, expectedFetchServersResult);
expect(ServersServiceMock.listServers).toHaveBeenCalledTimes(1);
expect(ServersServiceMock.createServer).not.toHaveBeenCalled();
expect(ServersServiceMock.deleteServer).not.toHaveBeenCalled();
expect(ServersServiceMock.createServers).not.toHaveBeenCalled();
expect(axios.get).not.toHaveBeenCalled();
});
it('tries to fetch servers from remote when not found locally', async () => {
const NoListServersServiceMock = { ...ServersServiceMock, listServers: jest.fn(() => ({})) };
await listServers(NoListServersServiceMock, axios)()(dispatch);
expect(dispatch).toHaveBeenCalledTimes(2);
expect(dispatch).toHaveBeenNthCalledWith(1, { type: FETCH_SERVERS_START });
expect(dispatch).toHaveBeenNthCalledWith(2, { type: FETCH_SERVERS, list: {} });
expect(NoListServersServiceMock.listServers).toHaveBeenCalledTimes(1);
expect(NoListServersServiceMock.createServer).not.toHaveBeenCalled();
expect(NoListServersServiceMock.deleteServer).not.toHaveBeenCalled();
expect(NoListServersServiceMock.createServers).toHaveBeenCalledTimes(1);
expect(axios.get).toHaveBeenCalledTimes(1);
});
});
@@ -75,7 +101,7 @@ describe('serverReducer', () => {
describe('createServer', () => {
it('creates multiple servers and then fetches servers again', () => {
const serversToCreate = values(payload);
const serversToCreate = values(list);
const result = createServers(ServersServiceMock, () => expectedFetchServersResult)(serversToCreate);
expect(result).toEqual(expectedFetchServersResult);