Add pgtype.NumericArray

2017-04-03 07:46:45 -05:00
parent 066562fc89
commit cc873a0bcf
4 changed files with 518 additions and 0 deletions
@@ -0,0 +1,159 @@
+package pgtype_test
+
+import (
+	"math/big"
+	"reflect"
+	"testing"
+
+	"github.com/jackc/pgx/pgtype"
+)
+
+func TestNumericArrayTranscode(t *testing.T) {
+	testSuccessfulTranscode(t, "numeric[]", []interface{}{
+		&pgtype.NumericArray{
+			Elements:   nil,
+			Dimensions: nil,
+			Status:     pgtype.Present,
+		},
+		&pgtype.NumericArray{
+			Elements: []pgtype.Numeric{
+				pgtype.Numeric{Int: big.NewInt(1), Status: pgtype.Present},
+				pgtype.Numeric{Status: pgtype.Null},
+			},
+			Dimensions: []pgtype.ArrayDimension{{Length: 2, LowerBound: 1}},
+			Status:     pgtype.Present,
+		},
+		&pgtype.NumericArray{Status: pgtype.Null},
+		&pgtype.NumericArray{
+			Elements: []pgtype.Numeric{
+				pgtype.Numeric{Int: big.NewInt(1), Status: pgtype.Present},
+				pgtype.Numeric{Int: big.NewInt(2), Status: pgtype.Present},
+				pgtype.Numeric{Int: big.NewInt(3), Status: pgtype.Present},
+				pgtype.Numeric{Int: big.NewInt(4), Status: pgtype.Present},
+				pgtype.Numeric{Status: pgtype.Null},
+				pgtype.Numeric{Int: big.NewInt(6), Status: pgtype.Present},
+			},
+			Dimensions: []pgtype.ArrayDimension{{Length: 3, LowerBound: 1}, {Length: 2, LowerBound: 1}},
+			Status:     pgtype.Present,
+		},
+		&pgtype.NumericArray{
+			Elements: []pgtype.Numeric{
+				pgtype.Numeric{Int: big.NewInt(1), Status: pgtype.Present},
+				pgtype.Numeric{Int: big.NewInt(2), Status: pgtype.Present},
+				pgtype.Numeric{Int: big.NewInt(3), Status: pgtype.Present},
+				pgtype.Numeric{Int: big.NewInt(4), Status: pgtype.Present},
+			},
+			Dimensions: []pgtype.ArrayDimension{
+				{Length: 2, LowerBound: 4},
+				{Length: 2, LowerBound: 2},
+			},
+			Status: pgtype.Present,
+		},
+	})
+}
+
+func TestNumericArraySet(t *testing.T) {
+	successfulTests := []struct {
+		source interface{}
+		result pgtype.NumericArray
+	}{
+		{
+			source: []float32{1},
+			result: pgtype.NumericArray{
+				Elements:   []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}},
+				Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
+				Status:     pgtype.Present},
+		},
+		{
+			source: []float64{1},
+			result: pgtype.NumericArray{
+				Elements:   []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}},
+				Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
+				Status:     pgtype.Present},
+		},
+		{
+			source: (([]float32)(nil)),
+			result: pgtype.NumericArray{Status: pgtype.Null},
+		},
+	}
+
+	for i, tt := range successfulTests {
+		var r pgtype.NumericArray
+		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 TestNumericArrayAssignTo(t *testing.T) {
+	var float32Slice []float32
+	var float64Slice []float64
+
+	simpleTests := []struct {
+		src      pgtype.NumericArray
+		dst      interface{}
+		expected interface{}
+	}{
+		{
+			src: pgtype.NumericArray{
+				Elements:   []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}},
+				Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
+				Status:     pgtype.Present,
+			},
+			dst:      &float32Slice,
+			expected: []float32{1},
+		},
+		{
+			src: pgtype.NumericArray{
+				Elements:   []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}},
+				Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
+				Status:     pgtype.Present,
+			},
+			dst:      &float64Slice,
+			expected: []float64{1},
+		},
+		{
+			src:      pgtype.NumericArray{Status: pgtype.Null},
+			dst:      &float32Slice,
+			expected: (([]float32)(nil)),
+		},
+	}
+
+	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.NumericArray
+		dst interface{}
+	}{
+		{
+			src: pgtype.NumericArray{
+				Elements:   []pgtype.Numeric{{Status: pgtype.Null}},
+				Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
+				Status:     pgtype.Present,
+			},
+			dst: &float32Slice,
+		},
+	}
+
+	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)
+		}
+	}
+
+}