mirror of
https://github.com/jackc/pgx.git
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449a8a4f8e
Adds array support - previously only slices were supported. Adds new test cases for multidimensional arrays and slices. All previous test cases are unmodified and passed (fully backwards compatible). Removes hard-coded type conversions for arrays, instead now relies on the type support of the array element's type conversion support. Less maintenance for arrays, new type conversions are automatically supported when array's element gains new type support. Simplifies typed_array_gen.sh generator script by removing the hard-coded single-dimensional types for arrays. Only typed_array.go.erb and typed_array_gen.sh have been changed + 1 new auxiliary function in array.go file + additional tests in test files for each array. Other changes are from generated code.
301 lines
9.7 KiB
Go
301 lines
9.7 KiB
Go
package pgtype_test
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import (
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"math"
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"math/big"
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"reflect"
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"testing"
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"github.com/jackc/pgtype"
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"github.com/jackc/pgtype/testutil"
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)
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func TestNumericArrayTranscode(t *testing.T) {
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testutil.TestSuccessfulTranscode(t, "numeric[]", []interface{}{
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&pgtype.NumericArray{
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Elements: nil,
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Dimensions: nil,
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Status: pgtype.Present,
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},
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&pgtype.NumericArray{
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Elements: []pgtype.Numeric{
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{Int: big.NewInt(1), Status: pgtype.Present},
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{Status: pgtype.Null},
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},
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Dimensions: []pgtype.ArrayDimension{{Length: 2, LowerBound: 1}},
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Status: pgtype.Present,
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},
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&pgtype.NumericArray{Status: pgtype.Null},
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&pgtype.NumericArray{
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Elements: []pgtype.Numeric{
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{Int: big.NewInt(1), Status: pgtype.Present},
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{Int: big.NewInt(2), Status: pgtype.Present},
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{Int: big.NewInt(3), Status: pgtype.Present},
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{Int: big.NewInt(4), Status: pgtype.Present},
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{Status: pgtype.Null},
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{Int: big.NewInt(6), Status: pgtype.Present},
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},
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Dimensions: []pgtype.ArrayDimension{{Length: 3, LowerBound: 1}, {Length: 2, LowerBound: 1}},
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Status: pgtype.Present,
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},
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&pgtype.NumericArray{
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Elements: []pgtype.Numeric{
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{Int: big.NewInt(1), Status: pgtype.Present},
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{Int: big.NewInt(2), Status: pgtype.Present},
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{Int: big.NewInt(3), Status: pgtype.Present},
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{Int: big.NewInt(4), Status: pgtype.Present},
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},
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Dimensions: []pgtype.ArrayDimension{
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{Length: 2, LowerBound: 4},
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{Length: 2, LowerBound: 2},
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},
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Status: pgtype.Present,
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},
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})
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}
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func TestNumericArraySet(t *testing.T) {
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successfulTests := []struct {
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source interface{}
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result pgtype.NumericArray
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}{
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{
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source: []float32{1},
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result: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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},
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{
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source: []float32{float32(math.Copysign(0, -1))},
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result: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(0), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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},
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{
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source: []float64{1},
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result: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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},
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{
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source: []float64{math.Copysign(0, -1)},
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result: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(0), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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},
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{
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source: (([]float32)(nil)),
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result: pgtype.NumericArray{Status: pgtype.Null},
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},
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{
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source: [][]float32{{1}, {2}},
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result: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}, {Int: big.NewInt(2), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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},
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{
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source: [][][][]float32{{{{1, 2, 3}}}, {{{4, 5, 6}}}},
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result: pgtype.NumericArray{
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Elements: []pgtype.Numeric{
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{Int: big.NewInt(1), Status: pgtype.Present},
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{Int: big.NewInt(2), Status: pgtype.Present},
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{Int: big.NewInt(3), Status: pgtype.Present},
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{Int: big.NewInt(4), Status: pgtype.Present},
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{Int: big.NewInt(5), Status: pgtype.Present},
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{Int: big.NewInt(6), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{
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{LowerBound: 1, Length: 2},
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{LowerBound: 1, Length: 1},
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{LowerBound: 1, Length: 1},
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{LowerBound: 1, Length: 3}},
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Status: pgtype.Present},
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},
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{
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source: [2][1]float32{{1}, {2}},
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result: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}, {Int: big.NewInt(2), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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},
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{
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source: [2][1][1][3]float32{{{{1, 2, 3}}}, {{{4, 5, 6}}}},
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result: pgtype.NumericArray{
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Elements: []pgtype.Numeric{
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{Int: big.NewInt(1), Status: pgtype.Present},
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{Int: big.NewInt(2), Status: pgtype.Present},
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{Int: big.NewInt(3), Status: pgtype.Present},
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{Int: big.NewInt(4), Status: pgtype.Present},
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{Int: big.NewInt(5), Status: pgtype.Present},
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{Int: big.NewInt(6), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{
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{LowerBound: 1, Length: 2},
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{LowerBound: 1, Length: 1},
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{LowerBound: 1, Length: 1},
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{LowerBound: 1, Length: 3}},
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Status: pgtype.Present},
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},
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}
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for i, tt := range successfulTests {
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var r pgtype.NumericArray
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err := r.Set(tt.source)
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if err != nil {
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t.Errorf("%d: %v", i, err)
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}
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if !reflect.DeepEqual(r, tt.result) {
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t.Errorf("%d: expected %v to convert to %v, but it was %v", i, tt.source, tt.result, r)
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}
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}
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}
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func TestNumericArrayAssignTo(t *testing.T) {
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var float32Slice []float32
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var float64Slice []float64
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var float32SliceDim2 [][]float32
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var float32SliceDim4 [][][][]float32
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var float32ArrayDim2 [2][1]float32
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var float32ArrayDim4 [2][1][1][3]float32
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simpleTests := []struct {
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src pgtype.NumericArray
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dst interface{}
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expected interface{}
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}{
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
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Status: pgtype.Present,
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},
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dst: &float32Slice,
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expected: []float32{1},
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},
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
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Status: pgtype.Present,
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},
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dst: &float64Slice,
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expected: []float64{1},
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},
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{
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src: pgtype.NumericArray{Status: pgtype.Null},
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dst: &float32Slice,
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expected: (([]float32)(nil)),
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},
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}, {Int: big.NewInt(2), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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dst: &float32SliceDim2,
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expected: [][]float32{{1}, {2}},
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},
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{
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{Int: big.NewInt(1), Status: pgtype.Present},
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{Int: big.NewInt(2), Status: pgtype.Present},
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{Int: big.NewInt(3), Status: pgtype.Present},
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{Int: big.NewInt(4), Status: pgtype.Present},
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{Int: big.NewInt(5), Status: pgtype.Present},
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{Int: big.NewInt(6), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{
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{LowerBound: 1, Length: 2},
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{LowerBound: 1, Length: 1},
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{LowerBound: 1, Length: 1},
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{LowerBound: 1, Length: 3}},
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Status: pgtype.Present},
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dst: &float32SliceDim4,
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expected: [][][][]float32{{{{1, 2, 3}}}, {{{4, 5, 6}}}},
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},
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}, {Int: big.NewInt(2), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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dst: &float32ArrayDim2,
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expected: [2][1]float32{{1}, {2}},
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},
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{
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{Int: big.NewInt(1), Status: pgtype.Present},
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{Int: big.NewInt(2), Status: pgtype.Present},
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{Int: big.NewInt(3), Status: pgtype.Present},
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{Int: big.NewInt(4), Status: pgtype.Present},
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{Int: big.NewInt(5), Status: pgtype.Present},
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{Int: big.NewInt(6), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{
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{LowerBound: 1, Length: 2},
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{LowerBound: 1, Length: 1},
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{LowerBound: 1, Length: 1},
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{LowerBound: 1, Length: 3}},
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Status: pgtype.Present},
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dst: &float32ArrayDim4,
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expected: [2][1][1][3]float32{{{{1, 2, 3}}}, {{{4, 5, 6}}}},
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},
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}
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for i, tt := range simpleTests {
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err := tt.src.AssignTo(tt.dst)
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if err != nil {
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t.Errorf("%d: %v", i, err)
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}
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if dst := reflect.ValueOf(tt.dst).Elem().Interface(); !reflect.DeepEqual(dst, tt.expected) {
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t.Errorf("%d: expected %v to assign %v, but result was %v", i, tt.src, tt.expected, dst)
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}
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}
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errorTests := []struct {
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src pgtype.NumericArray
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dst interface{}
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}{
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Status: pgtype.Null}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}},
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Status: pgtype.Present,
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},
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dst: &float32Slice,
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},
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}, {Int: big.NewInt(2), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}, {LowerBound: 1, Length: 2}},
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Status: pgtype.Present},
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dst: &float32ArrayDim2,
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},
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}, {Int: big.NewInt(2), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 1}, {LowerBound: 1, Length: 2}},
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Status: pgtype.Present},
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dst: &float32Slice,
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},
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{
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src: pgtype.NumericArray{
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Elements: []pgtype.Numeric{{Int: big.NewInt(1), Status: pgtype.Present}, {Int: big.NewInt(2), Status: pgtype.Present}},
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Dimensions: []pgtype.ArrayDimension{{LowerBound: 1, Length: 2}, {LowerBound: 1, Length: 1}},
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Status: pgtype.Present},
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dst: &float32ArrayDim4,
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},
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}
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for i, tt := range errorTests {
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err := tt.src.AssignTo(tt.dst)
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if err == nil {
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t.Errorf("%d: expected error but none was returned (%v -> %v)", i, tt.src, tt.dst)
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}
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}
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}
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