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package proto
import (
"bytes"
"io"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/ClickHouse/ch-go/internal/gold"
)
func TestColNullable_EncodeColumn(t *testing.T) {
const rows = 10
data := new(ColStr).Nullable()
values := []Nullable[string]{
{Value: "value1", Set: true},
{Value: "value2", Set: true},
{},
{Value: "value3", Set: true},
{},
{Value: "", Set: true},
{Value: "", Set: true},
{Value: "value4", Set: true},
{},
{Value: "value54", Set: true},
}
for _, v := range values {
data.Append(v)
}
var buf Buffer
data.EncodeColumn(&buf)
t.Run("Golden", func(t *testing.T) {
gold.Bytes(t, buf.Buf, "col_nullable_str")
})
t.Run("Ok", func(t *testing.T) {
br := bytes.NewReader(buf.Buf)
r := NewReader(br)
dec := new(ColStr).Nullable()
require.NoError(t, dec.DecodeColumn(r, rows))
require.Equal(t, data, dec)
require.Equal(t, rows, dec.Rows())
requireEqual[Nullable[string]](t, data, dec)
dec.Reset()
require.Equal(t, 0, dec.Rows())
require.Equal(t, ColumnType("Nullable(String)"), dec.Type())
})
t.Run("EOF", func(t *testing.T) {
r := NewReader(bytes.NewReader(nil))
dec := new(ColStr).Nullable()
require.ErrorIs(t, dec.DecodeColumn(r, rows), io.EOF)
})
t.Run("NoShortRead", func(t *testing.T) {
dec := new(ColStr).Nullable()
requireNoShortRead(t, buf.Buf, colAware(dec, rows))
})
}
func TestColNullable(t *testing.T) {
col := NewColNullable[string](new(ColStr))
v := []Nullable[string]{
NewNullable("foo"),
Null[string](),
NewNullable("bar"),
NewNullable("baz"),
}
col.AppendArr(v)
var buf Buffer
col.EncodeColumn(&buf)
t.Run("Golden", func(t *testing.T) {
gold.Bytes(t, buf.Buf, "col_nullable_of_str")
})
t.Run("Ok", func(t *testing.T) {
br := bytes.NewReader(buf.Buf)
r := NewReader(br)
dec := &ColNullable[string]{Values: new(ColStr)}
require.NoError(t, dec.DecodeColumn(r, col.Rows()))
require.Equal(t, col.Rows(), dec.Rows())
for i, s := range v {
assert.Equal(t, s, col.Row(i))
}
assert.Equal(t, ColumnType("Nullable(String)"), dec.Type())
})
t.Run("EOF", func(t *testing.T) {
r := NewReader(bytes.NewReader(nil))
dec := &ColNullable[string]{Values: new(ColStr)}
require.ErrorIs(t, dec.DecodeColumn(r, col.Rows()), io.EOF)
})
t.Run("NoShortRead", func(t *testing.T) {
dec := &ColNullable[string]{Values: new(ColStr)}
requireNoShortRead(t, buf.Buf, colAware(dec, col.Rows()))
})
}
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