go writev_test 源码
golang writev_test 代码
文件路径：/src/internal/poll/writev_test.go
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package poll_test
import (
"internal/poll"
"reflect"
"testing"
)
func TestConsume(t *testing.T) {
tests := []struct {
in [][]byte
consume int64
want [][]byte
}{
{
in: [][]byte{[]byte("foo"), []byte("bar")},
consume: 0,
want: [][]byte{[]byte("foo"), []byte("bar")},
},
{
in: [][]byte{[]byte("foo"), []byte("bar")},
consume: 2,
want: [][]byte{[]byte("o"), []byte("bar")},
},
{
in: [][]byte{[]byte("foo"), []byte("bar")},
consume: 3,
want: [][]byte{[]byte("bar")},
},
{
in: [][]byte{[]byte("foo"), []byte("bar")},
consume: 4,
want: [][]byte{[]byte("ar")},
},
{
in: [][]byte{nil, nil, nil, []byte("bar")},
consume: 1,
want: [][]byte{[]byte("ar")},
},
{
in: [][]byte{nil, nil, nil, []byte("foo")},
consume: 0,
want: [][]byte{[]byte("foo")},
},
{
in: [][]byte{nil, nil, nil},
consume: 0,
want: [][]byte{},
},
}
for i, tt := range tests {
in := tt.in
poll.Consume(&in, tt.consume)
if !reflect.DeepEqual(in, tt.want) {
t.Errorf("%d. after consume(%d) = %+v, want %+v", i, tt.consume, in, tt.want)
}
}
}
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