github.com/linapex/ethereum-go-chinese@v0.0.0-20190316121929-f8b7a73c3fa1/core/vm/gas_table_test.go (about)

     1  
     2  //<developer>
     3  //    <name>linapex 曹一峰</name>
     4  //    <email>linapex@163.com</email>
     5  //    <wx>superexc</wx>
     6  //    <qqgroup>128148617</qqgroup>
     7  //    <url>https://jsq.ink</url>
     8  //    <role>pku engineer</role>
     9  //    <date>2019-03-16 19:16:36</date>
    10  //</624450082325925888>
    11  
    12  
    13  package vm
    14  
    15  import "testing"
    16  
    17  func TestMemoryGasCost(t *testing.T) {
    18  //大小：=uint64（math.maxuint64-64）
    19  	size := uint64(0xffffffffe0)
    20  	v, err := memoryGasCost(&Memory{}, size)
    21  	if err != nil {
    22  		t.Error("didn't expect error:", err)
    23  	}
    24  	if v != 36028899963961341 {
    25  		t.Errorf("Expected: 36028899963961341, got %d", v)
    26  	}
    27  
    28  	_, err = memoryGasCost(&Memory{}, size+1)
    29  	if err == nil {
    30  		t.Error("expected error")
    31  	}
    32  }
    33