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package pq
import (
"math"
"reflect"
"testing"
"github.com/lib/pq/oid"
)
func TestDataTypeName(t *testing.T) {
tts := []struct {
typ oid.Oid
name string
}{
{oid.T_int8, "INT8"},
{oid.T_int4, "INT4"},
{oid.T_int2, "INT2"},
{oid.T_varchar, "VARCHAR"},
{oid.T_text, "TEXT"},
{oid.T_bool, "BOOL"},
{oid.T_numeric, "NUMERIC"},
{oid.T_date, "DATE"},
{oid.T_time, "TIME"},
{oid.T_timetz, "TIMETZ"},
{oid.T_timestamp, "TIMESTAMP"},
{oid.T_timestamptz, "TIMESTAMPTZ"},
{oid.T_bytea, "BYTEA"},
}
for i, tt := range tts {
dt := fieldDesc{OID: tt.typ}
if name := dt.Name(); name != tt.name {
t.Errorf("(%d) got: %s want: %s", i, name, tt.name)
}
}
}
func TestDataType(t *testing.T) {
tts := []struct {
typ oid.Oid
kind reflect.Kind
}{
{oid.T_int8, reflect.Int64},
{oid.T_int4, reflect.Int32},
{oid.T_int2, reflect.Int16},
{oid.T_varchar, reflect.String},
{oid.T_text, reflect.String},
{oid.T_bool, reflect.Bool},
{oid.T_date, reflect.Struct},
{oid.T_time, reflect.Struct},
{oid.T_timetz, reflect.Struct},
{oid.T_timestamp, reflect.Struct},
{oid.T_timestamptz, reflect.Struct},
{oid.T_bytea, reflect.Slice},
}
for i, tt := range tts {
dt := fieldDesc{OID: tt.typ}
if kind := dt.Type().Kind(); kind != tt.kind {
t.Errorf("(%d) got: %s want: %s", i, kind, tt.kind)
}
}
}
func TestDataTypeLength(t *testing.T) {
tts := []struct {
typ oid.Oid
len int
mod int
length int64
ok bool
}{
{oid.T_int4, 0, -1, 0, false},
{oid.T_varchar, 65535, 9, 5, true},
{oid.T_text, 65535, -1, math.MaxInt64, true},
{oid.T_bytea, 65535, -1, math.MaxInt64, true},
}
for i, tt := range tts {
dt := fieldDesc{OID: tt.typ, Len: tt.len, Mod: tt.mod}
if l, k := dt.Length(); k != tt.ok || l != tt.length {
t.Errorf("(%d) got: %d, %t want: %d, %t", i, l, k, tt.length, tt.ok)
}
}
}
func TestDataTypePrecisionScale(t *testing.T) {
tts := []struct {
typ oid.Oid
mod int
precision, scale int64
ok bool
}{
{oid.T_int4, -1, 0, 0, false},
{oid.T_numeric, 589830, 9, 2, true},
{oid.T_text, -1, 0, 0, false},
}
for i, tt := range tts {
dt := fieldDesc{OID: tt.typ, Mod: tt.mod}
p, s, k := dt.PrecisionScale()
if k != tt.ok {
t.Errorf("(%d) got: %t want: %t", i, k, tt.ok)
}
if p != tt.precision {
t.Errorf("(%d) wrong precision got: %d want: %d", i, p, tt.precision)
}
if s != tt.scale {
t.Errorf("(%d) wrong scale got: %d want: %d", i, s, tt.scale)
}
}
}
func TestRowsColumnTypes(t *testing.T) {
columnTypesTests := []struct {
Name string
TypeName string
Length struct {
Len int64
OK bool
}
DecimalSize struct {
Precision int64
Scale int64
OK bool
}
ScanType reflect.Type
}{
{
Name: "a",
TypeName: "INT4",
Length: struct {
Len int64
OK bool
}{
Len: 0,
OK: false,
},
DecimalSize: struct {
Precision int64
Scale int64
OK bool
}{
Precision: 0,
Scale: 0,
OK: false,
},
ScanType: reflect.TypeOf(int32(0)),
}, {
Name: "bar",
TypeName: "TEXT",
Length: struct {
Len int64
OK bool
}{
Len: math.MaxInt64,
OK: true,
},
DecimalSize: struct {
Precision int64
Scale int64
OK bool
}{
Precision: 0,
Scale: 0,
OK: false,
},
ScanType: reflect.TypeOf(""),
},
}
db := openTestConn(t)
defer db.Close()
rows, err := db.Query("SELECT 1 AS a, text 'bar' AS bar, 1.28::numeric(9, 2) AS dec")
if err != nil {
t.Fatal(err)
}
columns, err := rows.ColumnTypes()
if err != nil {
t.Fatal(err)
}
if len(columns) != 3 {
t.Errorf("expected 3 columns found %d", len(columns))
}
for i, tt := range columnTypesTests {
c := columns[i]
if c.Name() != tt.Name {
t.Errorf("(%d) got: %s, want: %s", i, c.Name(), tt.Name)
}
if c.DatabaseTypeName() != tt.TypeName {
t.Errorf("(%d) got: %s, want: %s", i, c.DatabaseTypeName(), tt.TypeName)
}
l, ok := c.Length()
if l != tt.Length.Len {
t.Errorf("(%d) got: %d, want: %d", i, l, tt.Length.Len)
}
if ok != tt.Length.OK {
t.Errorf("(%d) got: %t, want: %t", i, ok, tt.Length.OK)
}
p, s, ok := c.DecimalSize()
if p != tt.DecimalSize.Precision {
t.Errorf("(%d) got: %d, want: %d", i, p, tt.DecimalSize.Precision)
}
if s != tt.DecimalSize.Scale {
t.Errorf("(%d) got: %d, want: %d", i, s, tt.DecimalSize.Scale)
}
if ok != tt.DecimalSize.OK {
t.Errorf("(%d) got: %t, want: %t", i, ok, tt.DecimalSize.OK)
}
if c.ScanType() != tt.ScanType {
t.Errorf("(%d) got: %v, want: %v", i, c.ScanType(), tt.ScanType)
}
}
}
|
