github.com/matrixorigin/matrixone@v1.2.0/pkg/vm/engine/tae/logtail/service/response_test.go (about)

     1  // Copyright 2021 Matrix Origin
     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 service
    16  
    17  import (
    18  	"math"
    19  	"testing"
    20  
    21  	"github.com/stretchr/testify/require"
    22  )
    23  
    24  func TestResponseSize(t *testing.T) {
    25  	maxMessageSize := 1024
    26  	pool := NewLogtailServerSegmentPool(maxMessageSize)
    27  
    28  	/* --- Fetch a segment --- */
    29  	prev := pool.Acquire()
    30  	t.Log("segment size:", prev.ProtoSize())
    31  	require.True(t, prev.ProtoSize() > maxMessageSize)
    32  
    33  	/* --- Release it --- */
    34  	pool.Release(prev)
    35  
    36  	/* --- Fetch again --- */
    37  	curr := pool.Acquire()
    38  	t.Log("segment size:", curr.ProtoSize())
    39  	require.Equal(t, prev.ProtoSize(), curr.ProtoSize())
    40  
    41  	curr.StreamID = math.MaxUint64
    42  	curr.Sequence = math.MaxInt32
    43  	curr.MaxSequence = math.MaxInt32
    44  	curr.MessageSize = math.MaxInt32
    45  	t.Log("max proto size:", curr.ProtoSize())
    46  
    47  	limit := 2*maxMessageSize - curr.ProtoSize()
    48  	t.Log("limited size:", limit)
    49  	curr.Payload = curr.Payload[:limit]
    50  	t.Log("final segment size:", curr.ProtoSize())
    51  	require.Equal(t, curr.ProtoSize(), maxMessageSize)
    52  }