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jest-date-mock

🌗 Mock `Date` when run unit test cases with jest. Make tests of Date easier.

1.0.10

264

MIT

JavaScript

1.13 kB

57,304,181

4.1

Installations

npm install jest-date-mock

Score

99.8

Supply Chain

100

Quality

77.5

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

0

Total

13

Closed

0

Merged

13

Issues

Open

1

Total

21

Closed

20

Releases

v1.0.10

Published on 21 Apr 2024

v1.0.9

Published on 27 Mar 2024

v1.0.8

Published on 10 Jan 2020

v1.0.7

Published on 12 Jan 2019

View all 4 releases

Developer

hustcc

Module System

BETA

CommonJS

Statistics

264 Stars

40 Commits

15 Forks

4 Watching

2 Branches

10 Contributors

Updated on 07 Nov 2024

Bundle Size

2.76 kB

Minified

1.13 kB

Minified + Gzipped

Bundlephobia

Languages

JavaScript (100%)

Total Downloads

Cumulative downloads

Total Downloads

57,304,181

Last day

-3.6%

130,494

Compared to previous day

Last week

-9.6%

616,805

Compared to previous week

Last month

18.3%

2,537,916

Compared to previous month

Last year

23.3%

15,739,932

Compared to previous year

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

@babel/cli @babel/core @babel/preset-env babel-jest babel-plugin-version jest

Versions

jest-date-mock

Mock Date when run unit test cases with jest. Make tests of Date easier.

jest-random-mock Mock Math.random in jest, with deterministic random generator.

jest-canvas-mock Mock canvas when run unit test cases with jest.

Install

This should only be installed as a development dependency (devDependencies) as it is only designed for testing.

1npm i --save-dev jest-date-mock

Setup

In your package.json under the jest, create a setupFiles array and add jest-date-mock to the array.

1{
2  "jest": {
3    "setupFiles": ["jest-date-mock"]
4  }
5}

If you already have a setupFiles attribute you can also append jest-date-mock to the array.

1{
2  "jest": {
3    "setupFiles": ["./__setups__/other.js", "jest-date-mock"]
4  }
5}

More about in configuration section.

Setup file

Alternatively you can create a new setup file which then requires this module or add the require statement to an existing setup file.

__setups__/date.js

1import 'jest-date-mock';
2// or
3require('jest-date-mock');

Add that file to your setupFiles array:

1"jest": {
2  "setupFiles": [
3    "./__setups__/date.js"
4  ]
5}

Usage

Use the only 3 api for test cases.

advanceBy(ms): advance date timestamp by ms.
advanceTo([timestamp]): reset date to timestamp, default to 0.
clear(): shut down the mock system.

1import { advanceBy, advanceTo, clear } from 'jest-date-mock';
2
3test('usage', () => {
4  advanceTo(new Date(2018, 5, 27, 0, 0, 0)); // reset to date time.
5
6  const now = Date.now();
7
8  advanceBy(3000); // advance time 3 seconds
9  expect(+new Date() - now).toBe(3000);
10
11  advanceBy(-1000); // advance time -1 second
12  expect(+new Date() - now).toBe(2000);
13
14  clear();
15  Date.now(); // will got current timestamp
16});

More sample code here.

Also, add an API Date.current() to get the actual current timestamp.

1import { advanceBy, advanceTo, clear } from 'jest-date-mock';
2
3advanceTo(0); // reset to timestamp = 0
4
5Date.now(); // will got 0
6
7Date.current(); // will got the actual timestamp.

License

MIT@hustcc.

No vulnerabilities found.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

Dangerous-Workflow

Determines if the project's GitHub Action workflows avoid dangerous patterns.

10

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

10

License

Determines if the project has defined a license.

3

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

Maintained

Determines if the project is "actively maintained".

0

Pinned-Dependencies

Determines if the project has declared and pinned the dependencies of its build process.

0

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Security-Policy

Determines if the project has published a security policy.

0

Fuzzing

Determines if the project uses fuzzing.

0

SAST

Determines if the project uses static code analysis.

Score

4.1

/10

Last Scanned on 2024-11-18

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

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