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Firebase Stub: unit tests separated in different files

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gianantoniopini
2021-02-02 12:39:16 +01:00
parent 4634b4f0a0
commit 23386839a6
11 changed files with 571 additions and 552 deletions
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71
__mocks__/__tests__/gatsby-plugin-firebase/database.ref.set.test.js Normal file
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import { waitFor } from '@testing-library/react';
import FirebaseStub, { DatabaseConstants } from '../../gatsby-plugin-firebase';
test('inserts data', async () => {
FirebaseStub.database().initializeData();
const existingResume = (
await FirebaseStub.database()
.ref(
`${DatabaseConstants.resumesPath}/${DatabaseConstants.demoStateResume1Id}`,
)
.once('value')
).val();
expect(existingResume).toBeTruthy();
const newResume = JSON.parse(JSON.stringify(existingResume));
newResume.id = 'newre1';
newResume.name = `Test Resume ${newResume.id}`;
await FirebaseStub.database()
.ref(`${DatabaseConstants.resumesPath}/${newResume.id}`)
.set(newResume);
const actualResume = (
await FirebaseStub.database()
.ref(`${DatabaseConstants.resumesPath}/${newResume.id}`)
.once('value')
).val();
expect(actualResume).toBeTruthy();
expect(actualResume).toEqual(newResume);
});
test('triggers events', async () => {
FirebaseStub.database().initializeData();
let snapshotValue = null;
const callback = jest.fn((snapshot) => {
snapshotValue = snapshot.val();
});
FirebaseStub.database()
.ref(DatabaseConstants.resumesPath)
.orderByChild('user')
.equalTo(DatabaseConstants.user1.uid)
.on('value', callback);
await waitFor(() => callback.mock.calls[0][0]);
callback.mockClear();
snapshotValue = null;
const existingResume = (
await FirebaseStub.database()
.ref(
`${DatabaseConstants.resumesPath}/${DatabaseConstants.demoStateResume1Id}`,
)
.once('value')
).val();
expect(existingResume).toBeTruthy();
const newResume = JSON.parse(JSON.stringify(existingResume));
newResume.id = 'newre1';
newResume.name = `Test Resume ${newResume.id}`;
await FirebaseStub.database()
.ref(`${DatabaseConstants.resumesPath}/${newResume.id}`)
.set(newResume);
await waitFor(() => callback.mock.calls[0][0]);
expect(callback.mock.calls).toHaveLength(1);
expect(snapshotValue).not.toBeNull();
expect(Object.keys(snapshotValue)).toHaveLength(3);
expect(snapshotValue[newResume.id]).toBeTruthy();
expect(snapshotValue[newResume.id]).toEqual(newResume);
});