Somone knows about a good monkey patching library

[Ori Newman]

Hi,

I know https://github.com/bouk/monkey , but it has a very restrictive license (it says "I do not give anyone permissions to use this tool for any purpose. Don't use it.").

Someone knows an alternative with a better license?

Thanks in advance

[prakash sharma]

I would suggest to use function as type and replace it at the run time

For more info visit these link:

https://gist.github.com/husobee/9ff87a6f27e9abb4a3bc

// now a patch example
	oldDoSomething := doSomething
	// reset func after completing method
	defer func () { doSomething = oldDoSomething}()
	doSomething = func(s SomethingInterface) bool {
	return true
	}

You can use delegation approach as mentioned here:

https://stackoverflow.com/questions/59693971/mocked-method-not-working-in-golang-while-running-the-test-cases/59704965#59704965

Hope this helps.

  

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[Ori Newman]

Hi,

The attached gist can't work for patching methods. And I do not want to use dependency injection. This is a very big project and I'm beyond the point that I can change it to use dependency injection.

On Sunday, January 12, 2020 at 10:00:31 PM UTC+2, prakash sharma wrote:

I would suggest to use function as type and replace it at the run time

For more info visit these link:

https://gist.github.com/husobee/9ff87a6f27e9abb4a3bc

// now a patch example
	oldDoSomething := doSomething
	// reset func after completing method
	defer func () { doSomething = oldDoSomething}()
	doSomething = func(s SomethingInterface) bool {
	return true
	}

You can use delegation approach as mentioned here:

https://stackoverflow.com/questions/59693971/mocked-method-not-working-in-golang-while-running-the-test-cases/59704965#59704965

Hope this helps.

  

On Sun, 12 Jan, 2020, 11:46 PM Ori Newman, <orine...@gmail.com> wrote:

Hi,

I know https://github.com/bouk/monkey , but it has a very restrictive license (it says "I do not give anyone permissions to use this tool for any purpose. Don't use it.").

Someone knows an alternative with a better license?

Thanks in advance

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[Jason E. Aten]

If you call through an interface, you get runtime, dynamic dispatch.

[Pinkesh Bardiya]

https://github.com/undefinedlabs/go-mpatch

On Monday, January 13, 2020 at 2:35:26 PM UTC+5:30 Jason E. Aten wrote:

If you call through an interface, you get runtime, dynamic dispatch.

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