github.com/cloudwego/kitex@v0.9.0/pkg/remote/trans/nphttp2/grpc/controlbuf_test.go (about)

     1  /*
     2   * Copyright 2022 CloudWeGo Authors
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package grpc
    18  
    19  import (
    20  	"context"
    21  	"testing"
    22  	"time"
    23  
    24  	"github.com/cloudwego/kitex/internal/test"
    25  )
    26  
    27  func TestControlBuf(t *testing.T) {
    28  	ctx := context.Background()
    29  	cb := newControlBuffer(ctx.Done())
    30  
    31  	// test put()
    32  	testItem := &ping{}
    33  	err := cb.put(testItem)
    34  	test.Assert(t, err == nil, err)
    35  
    36  	// test get() with block
    37  	item, err := cb.get(true)
    38  	test.Assert(t, err == nil, err)
    39  	test.Assert(t, item == testItem, err)
    40  
    41  	// test get() with no block
    42  	item, err = cb.get(false)
    43  	test.Assert(t, err == nil, err)
    44  	test.Assert(t, item == nil, err)
    45  
    46  	// test executeAndPut()
    47  	success, err := cb.execute(func(it interface{}) bool {
    48  		return false
    49  	}, &ping{})
    50  
    51  	test.Assert(t, err == nil, err)
    52  	test.Assert(t, !success, err)
    53  
    54  	// test throttle() mock a lot of response frame so throttle() will block current goroutine
    55  	for i := 0; i < maxQueuedTransportResponseFrames+5; i++ {
    56  		err := cb.put(&ping{})
    57  		test.Assert(t, err == nil, err)
    58  	}
    59  
    60  	// start a new goroutine to consume response frame
    61  	go func() {
    62  		time.Sleep(time.Millisecond * 100)
    63  		for {
    64  			it, err := cb.get(false)
    65  			if err != nil || it == nil {
    66  				break
    67  			}
    68  		}
    69  	}()
    70  
    71  	cb.throttle()
    72  
    73  	// test finish()
    74  	cb.finish()
    75  }