faketime | Mock time.Now in golang | Mock library

by tkuchiki Go Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | faketime Summary

faketime is a Go library typically used in Testing, Mock applications. faketime has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Mock time.Now() in golang.

Support

Quality

Security

License

Reuse

Support

faketime has a low active ecosystem.

It has 28 star(s) with 8 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

There are 2 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of faketime is current.

Quality

faketime has 0 bugs and 0 code smells.

Security

faketime has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

faketime code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

faketime is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

faketime releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

It has 98 lines of code, 7 functions and 2 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed faketime and discovered the below as its top functions. This is intended to give you an instant insight into faketime implemented functionality, and help decide if they suit your requirements.

NewFaketime returns a new faketime .
Do updates faketime with the current time
NewFaketimeWithTime returns a new faketime with the given time .

Get all kandi verified functions for this library.

faketime Key Features

No Key Features are available at this moment for faketime.

faketime Examples and Code Snippets

No Code Snippets are available at this moment for faketime.

Community Discussions

Trending Discussions on faketime

cmd.StdoutPipe example in go pkg docs does not run in playground

How can I test a component style modified by a SetTimeout fired on useEffect?

Calling a function as a go routine produces different call stack from go routine as anonymous func

Error while reading into a struct from a []byte using a reader

How to test async exception?

jest.runAllTimers() throws TypeError

Dynamically access struct value by field name in go template

Why does Regexp.ReplaceAllString escape some characters in the replacement string?

How to make a testable wrapper around Threading.Timer and replace it when unit testing?

How to mock delay with sinon?

QUESTION

cmd.StdoutPipe example in go pkg docs does not run in playground

Asked 2022-Feb-27 at 10:56

cmd.StdoutPipe example at go documentation: https://pkg.go.dev/os/exec#example-Cmd.StdoutPipe does not run in playground.

https://play.golang.org/p/ek7-_Xa_bN3

Error:

...

ANSWER

Answered 2022-Feb-27 at 10:56

From the documentation on the os.exec package (which is where this example comes from):

Note that the examples in this package assume a Unix system. They may not run on Windows, and they do not run in the Go Playground used by golang.org and godoc.org.

That note doesn't provide a reason, but the reason is presumably that allowing user-provided unix commands to run would give a broader attack surface for malicious code. It's not that it's impossible to allow this in a relatively secure way, but there's various tradeoffs which make disallowing os.exec a natural choice.

Source https://stackoverflow.com/questions/71284040

QUESTION

How can I test a component style modified by a SetTimeout fired on useEffect?

Asked 2021-May-08 at 03:06

I'm using Jest/Enzyme to test a React/TypeScript application and I'm having a hard time trying to write a test to assert if a button shows up after a certain period of time:

Here's a very simplified version of the component to be tested:

...

ANSWER

Answered 2021-May-08 at 03:06

When the component is mounted, useEffect and setTimeout will be executed, you need to use jest.useFakeTimers(implementation?: 'modern' | 'legacy') before mounting the component.

Use jest.runOnlyPendingTimers() to

Executes only the macro-tasks that are currently pending (i.e., only the tasks that have been queued by setTimeout() or setInterval() up to this point)

Or jest.advanceTimersByTime(msToRun).

Besides, we need to wrap the code rendering it and performing updates inside an act() call, So put jest.runOnlyPendingTimers() in act().

Finally, we need to call wrapper.update() to make sure the state reflect to the view.

E.g.

SomeComponent.tsx:

Source https://stackoverflow.com/questions/67440874

QUESTION

Calling a function as a go routine produces different call stack from go routine as anonymous func

Asked 2021-Jan-04 at 23:15

I have a function named PrintCaller() which calls runtime.Caller() and skipping one frame to obtain and print the callers (of PrintCaller's) file name and line number. This works as expected when ran synchronously, and if called asynchronous as an anonymous function. However, if ran with just the go keyword, the stack frame of the caller is replaced with some internal function call.

For example, this is the function:

...

ANSWER

Answered 2021-Jan-04 at 23:15

The output you've seen is what one would expect, given the inner workings of the Go runtime system:

A goroutine, such as the main one that calls your own main in package main, but also including routines started by go somefunc(), is actually called from some machine-specific startup routine. On the playground that's the one in src/runtime/asm_amd64.s.
When you define a closure, such as:

Source https://stackoverflow.com/questions/65566521

QUESTION

Error while reading into a struct from a []byte using a reader

Asked 2021-Jan-01 at 10:04

I am trying to read a struct from a []byte variable.

When I try to read an individual variable I can make it work, but when trying to read directly into a struct I get the following error:

...

ANSWER

Answered 2020-Dec-31 at 18:49

The problem is that your foo struct fields are unexported (the first letter is not capitalized ) so reflect package can't access those for write ( it can still read unexported fields ).

Change your struct to this:

Source https://stackoverflow.com/questions/65524283

QUESTION

How to test async exception?

Asked 2020-Nov-30 at 05:17

I would like to figure out how to test that a widget throws an async exception.

Exception, that is created on the widget's initState:

...

ANSWER

Answered 2020-Nov-30 at 05:17

Async exceptions can be caught by runZonedGuarded:

Source https://stackoverflow.com/questions/65057233

QUESTION

jest.runAllTimers() throws TypeError

Asked 2020-Oct-07 at 06:27

I'm trying to run the following test using the built-in react-scripts test script in create-react-app:

Timer.test.js

...

ANSWER

Answered 2020-Oct-07 at 06:27

The error you're getting is probably because of setTimeout usage. setTimeout accepts a function as first argument but you are giving it whatever the return type of fireEvent.click(pauseButton). Change the code to:

Source https://stackoverflow.com/questions/64236199

QUESTION

Dynamically access struct value by field name in go template

Asked 2020-Sep-03 at 14:41

Is there a way to dynamically access a struct value by field name in go template?

For this code (https://play.golang.org/p/1B1sz0gnbAi):

...

ANSWER

Answered 2020-Sep-03 at 14:41

Even in regular golang code, accessing struct fields by name requires reflection, so it's not that easy in templates either. There is no built-in function allowing it, I am not aware of any library providing such function either. What you could do is implementing the function yourself. A very basic implementation could be as follows:

Source https://stackoverflow.com/questions/63725375

QUESTION

Why does Regexp.ReplaceAllString escape some characters in the replacement string?

Asked 2020-Aug-21 at 15:11

With the following code:

...

ANSWER

Answered 2020-Aug-21 at 15:11

thanks to @zerkms, turns out the regexp was wrong. Instead of:

Source https://stackoverflow.com/questions/63516937

QUESTION

How to make a testable wrapper around Threading.Timer and replace it when unit testing?

Asked 2020-Jun-11 at 19:30

I am struggling more than one day already with testing of my System.Threading.Timer(TimerCallback callback, object state, TimeSpan dueTime, TimeSpan period); overload.

Basing on this solution I created my ThreadingTimer, FakeTimer, that implements ITimer:

...

ANSWER

Answered 2020-Jun-11 at 19:30

One solution is to use Dependency Injection:

Source https://stackoverflow.com/questions/62331381

QUESTION

How to mock delay with sinon?

Asked 2020-May-11 at 05:07

I have a method in a service that requires to wait 5000 ms exactly before returning. I need to unit test that method. I want to mock the delay using sinon fakeTimers because I don't want the entire unit test to actually wait 5000 ms. But I have 2 problems.

1) The test freezes as soon as I use sinon fakeTimers. I am looking for a way to tick 5000 ms when the code reaches the delay line.

2) How do I "assert" sure the value is returned exactly after 5000 ms, not 4999 ms, not 5001 ms ? (is that even possible ? )

...

ANSWER

Answered 2020-May-11 at 05:07

You can check How to test async functions with fake timers doc for more info. Here is the solution:

service.js:

Source https://stackoverflow.com/questions/61695981

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install faketime

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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