Naive code generator that creates mock implementation using testify.mock.

Unlike mockery, Mocktail generates typed methods on mocks.

For an explanation of why we created Mocktail, you can read this article.

• Create a file named mock_test.go inside the package that you can to create mocks.
• Add one or multiple comments // mocktail:MyInterface inside the file mock_test.go.

package example

// mocktail:MyInterface

You can install Mocktail by running the following command:

go install github.com/traefik/mocktail@latest

You can use pre-compiled binaries:

• To get the binary just download the latest release for your OS/Arch from the releases page
• Unzip the archive.
• Add mocktail in your PATH.

It requires testify >= v1.7.0

Mocktail can only generate mock of interfaces inside a module itself (not from stdlib or dependencies)

The // mocktail comments must be added to a file named mock_test.go only,
comments in other files will not be detected

package a

import (
	"context"
	"time"
)

type Pineapple interface {
	Juice(context.Context, string, Water) Water
}

type Coconut interface {
	Open(string, int) time.Duration
}

type Water struct{}

package a

import (
	"context"
	"testing"
)

// mocktail:Pineapple
// mocktail:Coconut

func TestMock(t *testing.T) {
	var s Pineapple = newPineappleMock(t).
		OnJuice("foo", Water{}).TypedReturns(Water{}).Once().
		Parent

	s.Juice(context.Background(), "", Water{})

	var c Coconut = newCoconutMock(t).
		OnOpen("bar"<
774D
/span>, 2).Once().
		Parent

	c.Open("a", 2)
}

If you need to use your mocks in external packages just add flag -e:

mocktail -e

In this case, mock will be created in the same package but in the file mock_gen.go.