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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)
}
}
```