github.com/palcoin-project/palcd@v1.0.0/wire/msgmempool_test.go (about)

     1  // Copyright (c) 2013-2016 The btcsuite developers
     2  // Use of this source code is governed by an ISC
     3  // license that can be found in the LICENSE file.
     4  
     5  package wire
     6  
     7  import (
     8  	"bytes"
     9  	"testing"
    10  )
    11  
    12  func TestMemPool(t *testing.T) {
    13  	pver := ProtocolVersion
    14  	enc := BaseEncoding
    15  
    16  	// Ensure the command is expected value.
    17  	wantCmd := "mempool"
    18  	msg := NewMsgMemPool()
    19  	if cmd := msg.Command(); cmd != wantCmd {
    20  		t.Errorf("NewMsgMemPool: wrong command - got %v want %v",
    21  			cmd, wantCmd)
    22  	}
    23  
    24  	// Ensure max payload is expected value.
    25  	wantPayload := uint32(0)
    26  	maxPayload := msg.MaxPayloadLength(pver)
    27  	if maxPayload != wantPayload {
    28  		t.Errorf("MaxPayloadLength: wrong max payload length for "+
    29  			"protocol version %d - got %v, want %v", pver,
    30  			maxPayload, wantPayload)
    31  	}
    32  
    33  	// Test encode with latest protocol version.
    34  	var buf bytes.Buffer
    35  	err := msg.BtcEncode(&buf, pver, enc)
    36  	if err != nil {
    37  		t.Errorf("encode of MsgMemPool failed %v err <%v>", msg, err)
    38  	}
    39  
    40  	// Older protocol versions should fail encode since message didn't
    41  	// exist yet.
    42  	oldPver := BIP0035Version - 1
    43  	err = msg.BtcEncode(&buf, oldPver, enc)
    44  	if err == nil {
    45  		s := "encode of MsgMemPool passed for old protocol version %v err <%v>"
    46  		t.Errorf(s, msg, err)
    47  	}
    48  
    49  	// Test decode with latest protocol version.
    50  	readmsg := NewMsgMemPool()
    51  	err = readmsg.BtcDecode(&buf, pver, enc)
    52  	if err != nil {
    53  		t.Errorf("decode of MsgMemPool failed [%v] err <%v>", buf, err)
    54  	}
    55  
    56  	// Older protocol versions should fail decode since message didn't
    57  	// exist yet.
    58  	err = readmsg.BtcDecode(&buf, oldPver, enc)
    59  	if err == nil {
    60  		s := "decode of MsgMemPool passed for old protocol version %v err <%v>"
    61  		t.Errorf(s, msg, err)
    62  	}
    63  }