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enum_array_test.go
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package pgtype_test
import (
"context"
"reflect"
"testing"
"github.com/jackc/pgtype"
"github.com/jackc/pgtype/testutil"
)
func TestEnumArrayTranscode(t *testing.T) {
setupConn := testutil.MustConnectPgx(t)
defer testutil.MustCloseContext(t, setupConn)
if _, err := setupConn.Exec(context.Background(), "drop type if exists color"); err != nil {
t.Fatal(err)
}
if _, err := setupConn.Exec(context.Background(), "create type color as enum ('red', 'green', 'blue')"); err != nil {
t.Fatal(err)
}
testutil.TestSuccessfulTranscode(t, "color[]", []interface{}{
&pgtype.EnumArray{
Elements: nil,
Dimensions: nil,
Status: pgtype.Present,
},
&pgtype.EnumArray{
Elements: []pgtype.GenericText{
{String: "red", Status: pgtype.Present},
{Status: pgtype.Null},
},
Dimensions: []pgtype.ArrayDimension{{Length: 2, LowerBound: 1}},
Status: pgtype.Present,
},
&pgtype.EnumArray{Status: pgtype.Null},
&pgtype.EnumArray{
Elements: []pgtype.GenericText{
{String: "red", Status: pgtype.Present},
{String: "green", Status: pgtype.Present},
{String: "blue", Status: pgtype.Present},
{String: "red", Status: pgtype.Present},
},
Dimensions: []pgtype.ArrayDimension{
{Length: 2, LowerBound: 4},
{Length: 2, LowerBound: 2},
},
Status: pgtype.Present,
},
})
}
func TestEnumArrayArraySet(t *testing.T) {
successfulTests := []struct {
source interface{}
result pgtype.EnumArray
}{
{
source: []string{"foo"},
result: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
Status: pgtype.Present},
},
{
source: (([]string)(nil)),
result: pgtype.EnumArray{Status: pgtype.Null},
},
{
source: [][]string{{"foo"}, {"bar"}},
result: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}, {String: "bar", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
Status: pgtype.Present},
},
{
source: [][][][]string{{{{"foo", "bar", "baz"}}}, {{{"wibble", "wobble", "wubble"}}}},
result: pgtype.EnumArray{
Elements: []pgtype.GenericText{
{String: "foo", Status: pgtype.Present},
{String: "bar", Status: pgtype.Present},
{String: "baz", Status: pgtype.Present},
{String: "wibble", Status: pgtype.Present},
{String: "wobble", Status: pgtype.Present},
{String: "wubble", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{
{LowerBound: 1, Length: 2},
{LowerBound: 1, Length: 1},
{LowerBound: 1, Length: 1},
{LowerBound: 1, Length: 3}},
Status: pgtype.Present},
},
{
source: [2][1]string{{"foo"}, {"bar"}},
result: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}, {String: "bar", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
Status: pgtype.Present},
},
{
source: [2][1][1][3]string{{{{"foo", "bar", "baz"}}}, {{{"wibble", "wobble", "wubble"}}}},
result: pgtype.EnumArray{
Elements: []pgtype.GenericText{
{String: "foo", Status: pgtype.Present},
{String: "bar", Status: pgtype.Present},
{String: "baz", Status: pgtype.Present},
{String: "wibble", Status: pgtype.Present},
{String: "wobble", Status: pgtype.Present},
{String: "wubble", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{
{LowerBound: 1, Length: 2},
{LowerBound: 1, Length: 1},
{LowerBound: 1, Length: 1},
{LowerBound: 1, Length: 3}},
Status: pgtype.Present},
},
}
for i, tt := range successfulTests {
var r pgtype.EnumArray
err := r.Set(tt.source)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if !reflect.DeepEqual(r, tt.result) {
t.Errorf("%d: expected %v to convert to %v, but it was %v", i, tt.source, tt.result, r)
}
}
}
func TestEnumArrayArrayAssignTo(t *testing.T) {
var stringSlice []string
type _stringSlice []string
var namedStringSlice _stringSlice
var stringSliceDim2 [][]string
var stringSliceDim4 [][][][]string
var stringArrayDim2 [2][1]string
var stringArrayDim4 [2][1][1][3]string
simpleTests := []struct {
src pgtype.EnumArray
dst interface{}
expected interface{}
}{
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
Status: pgtype.Present,
},
dst: &stringSlice,
expected: []string{"foo"},
},
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "bar", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
Status: pgtype.Present,
},
dst: &namedStringSlice,
expected: _stringSlice{"bar"},
},
{
src: pgtype.EnumArray{Status: pgtype.Null},
dst: &stringSlice,
expected: (([]string)(nil)),
},
{
src: pgtype.EnumArray{Status: pgtype.Present},
dst: &stringSlice,
expected: []string{},
},
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}, {String: "bar", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
Status: pgtype.Present},
dst: &stringSliceDim2,
expected: [][]string{{"foo"}, {"bar"}},
},
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{
{String: "foo", Status: pgtype.Present},
{String: "bar", Status: pgtype.Present},
{String: "baz", Status: pgtype.Present},
{String: "wibble", Status: pgtype.Present},
{String: "wobble", Status: pgtype.Present},
{String: "wubble", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{
{LowerBound: 1, Length: 2},
{LowerBound: 1, Length: 1},
{LowerBound: 1, Length: 1},
{LowerBound: 1, Length: 3}},
Status: pgtype.Present},
dst: &stringSliceDim4,
expected: [][][][]string{{{{"foo", "bar", "baz"}}}, {{{"wibble", "wobble", "wubble"}}}},
},
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}, {String: "bar", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
Status: pgtype.Present},
dst: &stringArrayDim2,
expected: [2][1]string{{"foo"}, {"bar"}},
},
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{
{String: "foo", Status: pgtype.Present},
{String: "bar", Status: pgtype.Present},
{String: "baz", Status: pgtype.Present},
{String: "wibble", Status: pgtype.Present},
{String: "wobble", Status: pgtype.Present},
{String: "wubble", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{
{LowerBound: 1, Length: 2},
{LowerBound: 1, Length: 1},
{LowerBound: 1, Length: 1},
{LowerBound: 1, Length: 3}},
Status: pgtype.Present},
dst: &stringArrayDim4,
expected: [2][1][1][3]string{{{{"foo", "bar", "baz"}}}, {{{"wibble", "wobble", "wubble"}}}},
},
}
for i, tt := range simpleTests {
err := tt.src.AssignTo(tt.dst)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if dst := reflect.ValueOf(tt.dst).Elem().Interface(); !reflect.DeepEqual(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.EnumArray
dst interface{}
}{
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{{Status: pgtype.Null}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
Status: pgtype.Present,
},
dst: &stringSlice,
},
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}, {String: "bar", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}, {LowerBound: 1, Length: 2}},
Status: pgtype.Present},
dst: &stringArrayDim2,
},
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}, {String: "bar", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}, {LowerBound: 1, Length: 2}},
Status: pgtype.Present},
dst: &stringSlice,
},
{
src: pgtype.EnumArray{
Elements: []pgtype.GenericText{{String: "foo", Status: pgtype.Present}, {String: "bar", Status: pgtype.Present}},
Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
Status: pgtype.Present},
dst: &stringArrayDim4,
},
}
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)
}
}
}