func encodeColumnKV(tid, handle, cid int64, value types.Datum) (kv.Key, []byte, error) {
key := tablecodec.EncodeColumnKey(tid, handle, cid)
val, err := codec.EncodeValue(nil, value)
if err != nil {
return nil, nil, errors.Trace(err)
}
return key, val, nil
}
func (ts *testSuite) TestRowKeyCodec(c *C) {
table := []struct {
tableID int64
h int64
ID int64
}{
{1, 1234567890, 0},
{2, 1, 0},
{3, -1, 0},
{4, -1, 1},
}
for _, t := range table {
b := tablecodec.EncodeColumnKey(t.tableID, t.h, t.ID)
tableID, handle, columnID, err := tablecodec.DecodeRecordKey(b)
c.Assert(err, IsNil)
c.Assert(tableID, Equals, t.tableID)
c.Assert(handle, Equals, t.h)
c.Assert(columnID, Equals, t.ID)
handle, err = tablecodec.DecodeRowKey(b)
c.Assert(err, IsNil)
c.Assert(handle, Equals, t.h)
}
// test error
tbl := []string{
"",
"x",
"t1",
"t12345678",
"t12345678_i",
"t12345678_r1",
"t12345678_r1234567",
"t12345678_r123456781",
}
for _, t := range tbl {
_, err := tablecodec.DecodeRowKey(kv.Key(t))
c.Assert(err, NotNil)
}
}