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https://github.com/elgohr/stop-and-go

Testing helper for concurrency
https://github.com/elgohr/stop-and-go

concurrency go golang helper testing

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Testing helper for concurrency

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# stop-and-go

[![Actions Status](https://github.com/elgohr/stop-and-go/workflows/Test/badge.svg)](https://github.com/elgohr/stop-and-go/actions)

[![codecov](https://codecov.io/gh/elgohr/stop-and-go/branch/master/graph/badge.svg)](https://codecov.io/gh/elgohr/stop-and-go)

[![Go Report Card](https://goreportcard.com/badge/github.com/elgohr/stop-and-go)](https://goreportcard.com/report/github.com/elgohr/stop-and-go)

[![PkgGoDev](https://pkg.go.dev/badge/github.com/elgohr/stop-and-go)](https://pkg.go.dev/github.com/elgohr/stop-and-go)

[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)



Testing helper for concurrency



## Install



```bash

go get -u github.com/elgohr/stop-and-go

```



## Usage



```go

func TestExample(t *testing.T) {

	w1 := wait.NewWaiter(time.Second)

	w2 := wait.NewWaiter(time.Second)

	w3 := wait.NewWaiter(time.Second)



	ts1 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

		w.WriteHeader(http.StatusOK)

		w2.Done()

	}))

	defer ts1.Close()



	go func() {

		w3.Done()

	}()



	go func() {

		if _, err := http.Get(ts1.URL); err != nil {

			t.Error(err)

		}

		w1.Done()

	}()



	if err := wait.For(

		constraint.NoOrder(w3),

		constraint.Before(w1, w2),

	); err != nil {

		t.Error(err)

	}

}

```