pgx/pgtype/text_test.go

124 lines
3.0 KiB
Go

package pgtype_test
import (
"bytes"
"reflect"
"testing"
"github.com/jackc/pgx/pgtype"
"github.com/jackc/pgx/pgtype/testutil"
)
func TestTextTranscode(t *testing.T) {
for _, pgTypeName := range []string{"text", "varchar"} {
testutil.TestSuccessfulTranscode(t, pgTypeName, []interface{}{
&pgtype.Text{String: "", Status: pgtype.Present},
&pgtype.Text{String: "foo", Status: pgtype.Present},
&pgtype.Text{Status: pgtype.Null},
})
}
}
func TestTextSet(t *testing.T) {
successfulTests := []struct {
source interface{}
result pgtype.Text
}{
{source: "foo", result: pgtype.Text{String: "foo", Status: pgtype.Present}},
{source: _string("bar"), result: pgtype.Text{String: "bar", Status: pgtype.Present}},
{source: (*string)(nil), result: pgtype.Text{Status: pgtype.Null}},
}
for i, tt := range successfulTests {
var d pgtype.Text
err := d.Set(tt.source)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if d != tt.result {
t.Errorf("%d: expected %v to convert to %v, but it was %v", i, tt.source, tt.result, d)
}
}
}
func TestTextAssignTo(t *testing.T) {
var s string
var ps *string
stringTests := []struct {
src pgtype.Text
dst interface{}
expected interface{}
}{
{src: pgtype.Text{String: "foo", Status: pgtype.Present}, dst: &s, expected: "foo"},
{src: pgtype.Text{Status: pgtype.Null}, dst: &ps, expected: ((*string)(nil))},
}
for i, tt := range stringTests {
err := tt.src.AssignTo(tt.dst)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if dst := reflect.ValueOf(tt.dst).Elem().Interface(); dst != tt.expected {
t.Errorf("%d: expected %v to assign %v, but result was %v", i, tt.src, tt.expected, dst)
}
}
var buf []byte
bytesTests := []struct {
src pgtype.Text
dst *[]byte
expected []byte
}{
{src: pgtype.Text{String: "foo", Status: pgtype.Present}, dst: &buf, expected: []byte("foo")},
{src: pgtype.Text{Status: pgtype.Null}, dst: &buf, expected: nil},
}
for i, tt := range bytesTests {
err := tt.src.AssignTo(tt.dst)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if bytes.Compare(*tt.dst, tt.expected) != 0 {
t.Errorf("%d: expected %v to assign %v, but result was %v", i, tt.src, tt.expected, tt.dst)
}
}
pointerAllocTests := []struct {
src pgtype.Text
dst interface{}
expected interface{}
}{
{src: pgtype.Text{String: "foo", Status: pgtype.Present}, dst: &ps, expected: "foo"},
}
for i, tt := range pointerAllocTests {
err := tt.src.AssignTo(tt.dst)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if dst := reflect.ValueOf(tt.dst).Elem().Elem().Interface(); dst != tt.expected {
t.Errorf("%d: expected %v to assign %v, but result was %v", i, tt.src, tt.expected, dst)
}
}
errorTests := []struct {
src pgtype.Text
dst interface{}
}{
{src: pgtype.Text{Status: pgtype.Null}, dst: &s},
}
for i, tt := range errorTests {
err := tt.src.AssignTo(tt.dst)
if err == nil {
t.Errorf("%d: expected error but none was returned (%v -> %v)", i, tt.src, tt.dst)
}
}
}