go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/auth/integration/internal/localsrv/localsrv_test.go (about)

     1  // Copyright 2017 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package localsrv
    16  
    17  import (
    18  	"context"
    19  	"net"
    20  	"sync"
    21  	"testing"
    22  
    23  	. "github.com/smartystreets/goconvey/convey"
    24  	. "go.chromium.org/luci/common/testing/assertions"
    25  )
    26  
    27  func noopServe(context.Context, net.Listener, *sync.WaitGroup) error {
    28  	return nil
    29  }
    30  
    31  func TestServerLifecycle(t *testing.T) {
    32  	t.Parallel()
    33  
    34  	ctx := context.Background()
    35  
    36  	Convey("Double Start", t, func() {
    37  		s := Server{}
    38  		defer s.Stop(ctx)
    39  		_, err := s.Start(ctx, "test", 0, noopServe)
    40  		So(err, ShouldBeNil)
    41  		_, err = s.Start(ctx, "test", 0, noopServe)
    42  		So(err, ShouldErrLike, "already initialized")
    43  	})
    44  
    45  	Convey("Start after Stop", t, func() {
    46  		s := Server{}
    47  		_, err := s.Start(ctx, "test", 0, noopServe)
    48  		So(err, ShouldBeNil)
    49  		So(s.Stop(ctx), ShouldBeNil)
    50  		_, err = s.Start(ctx, "test", 0, noopServe)
    51  		So(err, ShouldErrLike, "already initialized")
    52  	})
    53  
    54  	Convey("Stop works", t, func() {
    55  		serving := make(chan struct{})
    56  		s := Server{}
    57  		_, err := s.Start(ctx, "test", 0, func(c context.Context, l net.Listener, wg *sync.WaitGroup) error {
    58  			close(serving)
    59  			<-c.Done() // the context is canceled by Stop() call below
    60  			return nil
    61  		})
    62  		So(err, ShouldBeNil)
    63  
    64  		<-serving // wait until really started
    65  
    66  		// Stop it.
    67  		So(s.Stop(ctx), ShouldBeNil)
    68  		// Doing it second time is ok too.
    69  		So(s.Stop(ctx), ShouldBeNil)
    70  	})
    71  }