github.com/fafucoder/cilium@v1.6.11/pkg/monitor/payload/monitor_payload_test.go (about)

     1  // Copyright 2017 Authors of Cilium
     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  // +build !privileged_tests
    16  
    17  package payload
    18  
    19  import (
    20  	"bytes"
    21  	"encoding/gob"
    22  	"testing"
    23  
    24  	"github.com/cilium/cilium/pkg/checker"
    25  
    26  	. "gopkg.in/check.v1"
    27  )
    28  
    29  func Test(t *testing.T) { TestingT(t) }
    30  
    31  type PayloadSuite struct{}
    32  
    33  var _ = Suite(&PayloadSuite{})
    34  
    35  func (s *PayloadSuite) TestMeta_UnMarshalBinary(c *C) {
    36  	meta1 := Meta{Size: 1234}
    37  	buf, err := meta1.MarshalBinary()
    38  	c.Assert(err, Equals, nil)
    39  
    40  	var meta2 Meta
    41  	err = meta2.UnmarshalBinary(buf)
    42  	c.Assert(err, Equals, nil)
    43  
    44  	c.Assert(meta1, checker.DeepEquals, meta2)
    45  }
    46  
    47  func (s *PayloadSuite) TestPayload_UnMarshalBinary(c *C) {
    48  	payload1 := Payload{
    49  		Data: []byte{1, 2, 3, 4},
    50  		Lost: 5243,
    51  		CPU:  12,
    52  		Type: 9,
    53  	}
    54  	buf, err := payload1.Encode()
    55  	c.Assert(err, Equals, nil)
    56  
    57  	var payload2 Payload
    58  	err = payload2.Decode(buf)
    59  	c.Assert(err, Equals, nil)
    60  
    61  	c.Assert(payload1, checker.DeepEquals, payload2)
    62  }
    63  
    64  func (s *PayloadSuite) TestWriteReadMetaPayload(c *C) {
    65  	meta1 := Meta{Size: 1234}
    66  	payload1 := Payload{
    67  		Data: []byte{1, 2, 3, 4},
    68  		Lost: 5243,
    69  		CPU:  12,
    70  		Type: 9,
    71  	}
    72  
    73  	var buf bytes.Buffer
    74  	err := WriteMetaPayload(&buf, &meta1, &payload1)
    75  	c.Assert(err, Equals, nil)
    76  
    77  	var meta2 Meta
    78  	var payload2 Payload
    79  	err = ReadMetaPayload(&buf, &meta2, &payload2)
    80  	c.Assert(err, Equals, nil)
    81  
    82  	c.Assert(meta1, checker.DeepEquals, meta2)
    83  	c.Assert(payload1, checker.DeepEquals, payload2)
    84  }
    85  
    86  func (s *PayloadSuite) BenchmarkWriteMetaPayload(c *C) {
    87  	meta := Meta{Size: 1234}
    88  	pl := Payload{
    89  		Data: []byte{1, 2, 3, 4},
    90  		Lost: 5243,
    91  		CPU:  12,
    92  		Type: 9,
    93  	}
    94  
    95  	// Do a first dry run to pre-allocate the buffer capacity.
    96  	var buf bytes.Buffer
    97  	err := WriteMetaPayload(&buf, &meta, &pl)
    98  	c.Assert(err, Equals, nil)
    99  
   100  	for i := 0; i < c.N; i++ {
   101  		buf.Reset()
   102  		err := WriteMetaPayload(&buf, &meta, &pl)
   103  		c.Assert(err, Equals, nil)
   104  	}
   105  }
   106  
   107  func (s *PayloadSuite) BenchmarkReadMetaPayload(c *C) {
   108  	payload := Payload{
   109  		Data: []byte{1, 2, 3, 4},
   110  		Lost: 5243,
   111  		CPU:  12,
   112  		Type: 9,
   113  	}
   114  
   115  	var buf bytes.Buffer
   116  	for i := 0; i < c.N; i++ {
   117  		err := payload.WriteBinary(&buf)
   118  		c.Assert(err, Equals, nil)
   119  	}
   120  
   121  	for i := 0; i < c.N; i++ {
   122  		err := payload.ReadBinary(&buf)
   123  		c.Assert(err, Equals, nil)
   124  	}
   125  }
   126  
   127  func (s *PayloadSuite) BenchmarkWritePayloadReuseEncoder(c *C) {
   128  	payload := Payload{
   129  		Data: []byte{1, 2, 3, 4},
   130  		Lost: 5243,
   131  		CPU:  12,
   132  		Type: 9,
   133  	}
   134  
   135  	// Do a first dry run to pre-allocate the buffer capacity.
   136  	var buf bytes.Buffer
   137  	enc := gob.NewEncoder(&buf)
   138  	err := payload.EncodeBinary(enc)
   139  	c.Assert(err, Equals, nil)
   140  
   141  	for i := 0; i < c.N; i++ {
   142  		buf.Reset()
   143  		err := payload.EncodeBinary(enc)
   144  		c.Assert(err, Equals, nil)
   145  	}
   146  }
   147  
   148  func (s *PayloadSuite) BenchmarkReadPayloadRuseEncoder(c *C) {
   149  	payload := Payload{
   150  		Data: []byte{1, 2, 3, 4},
   151  		Lost: 5243,
   152  		CPU:  12,
   153  		Type: 9,
   154  	}
   155  
   156  	var buf bytes.Buffer
   157  
   158  	// prefill an encoded stream
   159  	enc := gob.NewEncoder(&buf)
   160  	for i := 0; i < c.N; i++ {
   161  		err := payload.EncodeBinary(enc)
   162  		c.Assert(err, Equals, nil)
   163  	}
   164  
   165  	dec := gob.NewDecoder(&buf)
   166  	for i := 0; i < c.N; i++ {
   167  		err := payload.DecodeBinary(dec)
   168  		c.Assert(err, Equals, nil)
   169  	}
   170  }