/
core.go
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/
core.go
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// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package yarpctest
import (
"fmt"
"testing"
"github.com/stretchr/testify/assert"
"go.uber.org/multierr"
"go.uber.org/yarpc/x/yarpctest/api"
)
// Action is the interface for applying actions (Requests) in tests.
type Action api.Action
// Lifecycle is the interface for creating/starting/stopping lifecycles
// (Services) in tests.
type Lifecycle api.Lifecycle
// Lifecycles is a wrapper around a list of Lifecycle definitions.
func Lifecycles(l ...api.Lifecycle) api.Lifecycle {
return lifecycles(l)
}
type lifecycles []api.Lifecycle
// Start the lifecycles. If there are any errors, stop any started lifecycles
// and fail the test.
func (ls lifecycles) Start(t testing.TB) error {
startedLifecycles := make(lifecycles, 0, len(ls))
for _, l := range ls {
err := l.Start(t)
if !assert.NoError(t, err) {
// Cleanup started lifecycles (this could fail)
return multierr.Append(err, startedLifecycles.Stop(t))
}
startedLifecycles = append(startedLifecycles, l)
}
return nil
}
// Stop the lifecycles. Record all errors. If any lifecycle failed to stop
// fail the test.
func (ls lifecycles) Stop(t testing.TB) error {
var err error
for _, l := range ls {
err = multierr.Append(err, l.Stop(t))
}
assert.NoError(t, err)
return err
}
// Actions will wrap a list of actions in a sequential executor.
func Actions(actions ...api.Action) api.Action {
return multi(actions)
}
type multi []api.Action
func (m multi) Run(t testing.TB) {
for i, req := range m {
api.Run(fmt.Sprintf("Action #%d", i), t, req.Run)
}
}