mirror of
https://github.com/ceph/go-ceph
synced 2024-12-23 14:45:42 +00:00
74ca850366
BufferGroup is a helper structure that holds Go-allocated slices of C-allocated strings and their respective lengths. Useful for C functions that consume byte buffers with explicit length instead of null-terminated strings.
54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
package cutil
|
|
|
|
import (
|
|
"testing"
|
|
"unsafe"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestBufferGroup(t *testing.T) {
|
|
t.Run("Empty", func(t *testing.T) {
|
|
s := NewBufferGroupStrings(nil)
|
|
assert.NotPanics(t, func() { s.Free() })
|
|
})
|
|
t.Run("NotEmpty", func(t *testing.T) {
|
|
s := NewBufferGroupStrings([]string{"hello"})
|
|
assert.NotPanics(t, func() { s.Free() })
|
|
})
|
|
t.Run("FreeSetsNil", func(t *testing.T) {
|
|
s := NewBufferGroupStrings([]string{"hello"})
|
|
s.Free()
|
|
assert.Nil(t, s.Buffers)
|
|
assert.Nil(t, s.Lengths)
|
|
})
|
|
t.Run("DoubleFree", func(t *testing.T) {
|
|
s := NewBufferGroupStrings([]string{"hello"})
|
|
assert.NotPanics(t, func() { s.Free() })
|
|
assert.NotPanics(t, func() { s.Free() })
|
|
})
|
|
t.Run("ValidPtrs", func(t *testing.T) {
|
|
s := NewBufferGroupStrings([]string{"hello"})
|
|
defer s.Free()
|
|
assert.Equal(t, unsafe.Pointer(&s.Buffers[0]), unsafe.Pointer(s.BuffersPtr()))
|
|
assert.Equal(t, unsafe.Pointer(&s.Lengths[0]), unsafe.Pointer(s.LengthsPtr()))
|
|
})
|
|
t.Run("ValidContents", func(t *testing.T) {
|
|
values := []string{
|
|
"1", "12", "123", "世界", "abc\x00", "ab\x00c",
|
|
}
|
|
|
|
s := NewBufferGroupStrings(values)
|
|
defer s.Free()
|
|
|
|
assert.Equal(t, len(values), len(s.Buffers))
|
|
assert.Equal(t, len(values), len(s.Lengths))
|
|
|
|
for i := range values {
|
|
actualStr, actualLen := testBufferGroupGet(s, i)
|
|
assert.Equal(t, values[i], actualStr)
|
|
assert.Equal(t, len(values[i]), actualLen)
|
|
}
|
|
})
|
|
}
|