mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-04 21:09:06 +08:00
684 lines
17 KiB
Go
684 lines
17 KiB
Go
// Licensed to the LF AI & Data foundation under one
|
|
// or more contributor license agreements. See the NOTICE file
|
|
// distributed with this work for additional information
|
|
// regarding copyright ownership. The ASF licenses this file
|
|
// to you under the Apache License, Version 2.0 (the
|
|
// "License"); you may not use this file except in compliance
|
|
// with the License. You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package importutil
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"io"
|
|
"os"
|
|
"strconv"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/milvus-io/milvus-proto/go-api/schemapb"
|
|
"github.com/sbinet/npyio/npy"
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
type MockReader struct {
|
|
}
|
|
|
|
func (r *MockReader) Read(p []byte) (n int, err error) {
|
|
return 0, io.EOF
|
|
}
|
|
|
|
func Test_CreateNumpyFile(t *testing.T) {
|
|
// directory doesn't exist
|
|
data1 := []float32{1, 2, 3, 4, 5}
|
|
err := CreateNumpyFile("/dummy_not_exist/dummy.npy", data1)
|
|
assert.NotNil(t, err)
|
|
|
|
// invalid data type
|
|
data2 := make(map[string]int)
|
|
err = CreateNumpyFile("/tmp/dummy.npy", data2)
|
|
assert.NotNil(t, err)
|
|
}
|
|
|
|
func Test_CreateNumpyData(t *testing.T) {
|
|
// directory doesn't exist
|
|
data1 := []float32{1, 2, 3, 4, 5}
|
|
buf, err := CreateNumpyData(data1)
|
|
assert.NotNil(t, buf)
|
|
assert.Nil(t, err)
|
|
|
|
// invalid data type
|
|
data2 := make(map[string]int)
|
|
buf, err = CreateNumpyData(data2)
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, buf)
|
|
}
|
|
|
|
func Test_ConvertNumpyType(t *testing.T) {
|
|
checkFunc := func(inputs []string, output schemapb.DataType) {
|
|
for i := 0; i < len(inputs); i++ {
|
|
dt, err := convertNumpyType(inputs[i])
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, output, dt)
|
|
}
|
|
}
|
|
|
|
checkFunc([]string{"b1", "<b1", "|b1", "bool"}, schemapb.DataType_Bool)
|
|
checkFunc([]string{"i1", "<i1", "|i1", ">i1", "int8"}, schemapb.DataType_Int8)
|
|
checkFunc([]string{"i2", "<i2", "|i2", ">i2", "int16"}, schemapb.DataType_Int16)
|
|
checkFunc([]string{"i4", "<i4", "|i4", ">i4", "int32"}, schemapb.DataType_Int32)
|
|
checkFunc([]string{"i8", "<i8", "|i8", ">i8", "int64"}, schemapb.DataType_Int64)
|
|
checkFunc([]string{"f4", "<f4", "|f4", ">f4", "float32"}, schemapb.DataType_Float)
|
|
checkFunc([]string{"f8", "<f8", "|f8", ">f8", "float64"}, schemapb.DataType_Double)
|
|
|
|
dt, err := convertNumpyType("dummy")
|
|
assert.NotNil(t, err)
|
|
assert.Equal(t, schemapb.DataType_None, dt)
|
|
}
|
|
|
|
func Test_StringLen(t *testing.T) {
|
|
len, utf, err := stringLen("S1")
|
|
assert.Equal(t, 1, len)
|
|
assert.False(t, utf)
|
|
assert.Nil(t, err)
|
|
|
|
len, utf, err = stringLen("2S")
|
|
assert.Equal(t, 2, len)
|
|
assert.False(t, utf)
|
|
assert.Nil(t, err)
|
|
|
|
len, utf, err = stringLen("<U3")
|
|
assert.Equal(t, 3, len)
|
|
assert.True(t, utf)
|
|
assert.Nil(t, err)
|
|
|
|
len, utf, err = stringLen(">4U")
|
|
assert.Equal(t, 4, len)
|
|
assert.True(t, utf)
|
|
assert.Nil(t, err)
|
|
|
|
len, utf, err = stringLen("dummy")
|
|
assert.NotNil(t, err)
|
|
assert.Equal(t, 0, len)
|
|
assert.False(t, utf)
|
|
}
|
|
|
|
func Test_NumpyAdapterSetByteOrder(t *testing.T) {
|
|
adapter := &NumpyAdapter{
|
|
reader: nil,
|
|
npyReader: &npy.Reader{},
|
|
}
|
|
assert.Nil(t, adapter.Reader())
|
|
assert.NotNil(t, adapter.NpyReader())
|
|
|
|
adapter.npyReader.Header.Descr.Type = "<i8"
|
|
adapter.setByteOrder()
|
|
assert.Equal(t, binary.LittleEndian, adapter.order)
|
|
|
|
adapter.npyReader.Header.Descr.Type = ">i8"
|
|
adapter.setByteOrder()
|
|
assert.Equal(t, binary.BigEndian, adapter.order)
|
|
}
|
|
|
|
func Test_NumpyAdapterReadError(t *testing.T) {
|
|
adapter := &NumpyAdapter{
|
|
reader: nil,
|
|
npyReader: nil,
|
|
}
|
|
|
|
// reader size is zero
|
|
t.Run("test size is zero", func(t *testing.T) {
|
|
_, err := adapter.ReadBool(0)
|
|
assert.NotNil(t, err)
|
|
_, err = adapter.ReadUint8(0)
|
|
assert.NotNil(t, err)
|
|
_, err = adapter.ReadInt8(0)
|
|
assert.NotNil(t, err)
|
|
_, err = adapter.ReadInt16(0)
|
|
assert.NotNil(t, err)
|
|
_, err = adapter.ReadInt32(0)
|
|
assert.NotNil(t, err)
|
|
_, err = adapter.ReadInt64(0)
|
|
assert.NotNil(t, err)
|
|
_, err = adapter.ReadFloat32(0)
|
|
assert.NotNil(t, err)
|
|
_, err = adapter.ReadFloat64(0)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
adapter = &NumpyAdapter{
|
|
reader: &MockReader{},
|
|
npyReader: &npy.Reader{},
|
|
}
|
|
|
|
t.Run("test read bool", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "bool"
|
|
data, err := adapter.ReadBool(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadBool(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
t.Run("test read uint8", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "u1"
|
|
data, err := adapter.ReadUint8(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadUint8(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
t.Run("test read int8", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "i1"
|
|
data, err := adapter.ReadInt8(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadInt8(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
t.Run("test read int16", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "i2"
|
|
data, err := adapter.ReadInt16(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadInt16(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
t.Run("test read int32", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "i4"
|
|
data, err := adapter.ReadInt32(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadInt32(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
t.Run("test read int64", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "i8"
|
|
data, err := adapter.ReadInt64(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadInt64(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
t.Run("test read float", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "f4"
|
|
data, err := adapter.ReadFloat32(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadFloat32(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
t.Run("test read double", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "f8"
|
|
data, err := adapter.ReadFloat64(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadFloat64(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
|
|
t.Run("test read varchar", func(t *testing.T) {
|
|
adapter.npyReader.Header.Descr.Type = "U3"
|
|
data, err := adapter.ReadString(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
|
|
adapter.npyReader.Header.Descr.Type = "dummy"
|
|
data, err = adapter.ReadString(1)
|
|
assert.Nil(t, data)
|
|
assert.NotNil(t, err)
|
|
})
|
|
}
|
|
|
|
func Test_NumpyAdapterRead(t *testing.T) {
|
|
err := os.MkdirAll(TempFilesPath, os.ModePerm)
|
|
assert.Nil(t, err)
|
|
defer os.RemoveAll(TempFilesPath)
|
|
|
|
t.Run("test read bool", func(t *testing.T) {
|
|
filePath := TempFilesPath + "bool.npy"
|
|
data := []bool{true, false, true, false}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
|
|
res, err := adapter.ReadBool(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadBool(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadBool(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
|
|
// incorrect type read
|
|
resu1, err := adapter.ReadUint8(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, resu1)
|
|
|
|
resi1, err := adapter.ReadInt8(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, resi1)
|
|
|
|
resi2, err := adapter.ReadInt16(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, resi2)
|
|
|
|
resi4, err := adapter.ReadInt32(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, resi4)
|
|
|
|
resi8, err := adapter.ReadInt64(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, resi8)
|
|
|
|
resf4, err := adapter.ReadFloat32(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, resf4)
|
|
|
|
resf8, err := adapter.ReadFloat64(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, resf8)
|
|
})
|
|
|
|
t.Run("test read uint8", func(t *testing.T) {
|
|
filePath := TempFilesPath + "uint8.npy"
|
|
data := []uint8{1, 2, 3, 4, 5, 6}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
|
|
res, err := adapter.ReadUint8(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadUint8(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadUint8(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
|
|
// incorrect type read
|
|
resb, err := adapter.ReadBool(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, resb)
|
|
})
|
|
|
|
t.Run("test read int8", func(t *testing.T) {
|
|
filePath := TempFilesPath + "int8.npy"
|
|
data := []int8{1, 2, 3, 4, 5, 6}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
|
|
res, err := adapter.ReadInt8(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadInt8(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadInt8(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
})
|
|
|
|
t.Run("test read int16", func(t *testing.T) {
|
|
filePath := TempFilesPath + "int16.npy"
|
|
data := []int16{1, 2, 3, 4, 5, 6}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
|
|
res, err := adapter.ReadInt16(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadInt16(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadInt16(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
})
|
|
|
|
t.Run("test read int32", func(t *testing.T) {
|
|
filePath := TempFilesPath + "int32.npy"
|
|
data := []int32{1, 2, 3, 4, 5, 6}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
|
|
res, err := adapter.ReadInt32(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadInt32(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadInt32(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
})
|
|
|
|
t.Run("test read int64", func(t *testing.T) {
|
|
filePath := TempFilesPath + "int64.npy"
|
|
data := []int64{1, 2, 3, 4, 5, 6}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
|
|
res, err := adapter.ReadInt64(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadInt64(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadInt64(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
})
|
|
|
|
t.Run("test read float", func(t *testing.T) {
|
|
filePath := TempFilesPath + "float.npy"
|
|
data := []float32{1, 2, 3, 4, 5, 6}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
|
|
res, err := adapter.ReadFloat32(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadFloat32(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadFloat32(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
})
|
|
|
|
t.Run("test read double", func(t *testing.T) {
|
|
filePath := TempFilesPath + "double.npy"
|
|
data := []float64{1, 2, 3, 4, 5, 6}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
|
|
res, err := adapter.ReadFloat64(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadFloat64(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadFloat64(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
})
|
|
|
|
t.Run("test read ascii characters with ansi", func(t *testing.T) {
|
|
npyReader := &npy.Reader{
|
|
Header: npy.Header{},
|
|
}
|
|
|
|
data := make([]byte, 0)
|
|
values := []string{"ab", "ccc", "d"}
|
|
maxLen := 0
|
|
for _, str := range values {
|
|
if len(str) > maxLen {
|
|
maxLen = len(str)
|
|
}
|
|
}
|
|
for _, str := range values {
|
|
for i := 0; i < maxLen; i++ {
|
|
if i < len(str) {
|
|
data = append(data, str[i])
|
|
} else {
|
|
data = append(data, 0)
|
|
}
|
|
}
|
|
}
|
|
|
|
npyReader.Header.Descr.Shape = append(npyReader.Header.Descr.Shape, len(values))
|
|
|
|
adapter := &NumpyAdapter{
|
|
reader: strings.NewReader(string(data)),
|
|
npyReader: npyReader,
|
|
readPosition: 0,
|
|
dataType: schemapb.DataType_VarChar,
|
|
}
|
|
|
|
// count should greater than 0
|
|
res, err := adapter.ReadString(0)
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
|
|
// maxLen is zero
|
|
npyReader.Header.Descr.Type = "S0"
|
|
res, err = adapter.ReadString(1)
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
|
|
npyReader.Header.Descr.Type = "S" + strconv.FormatInt(int64(maxLen), 10)
|
|
|
|
res, err = adapter.ReadString(len(values) + 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(values), len(res))
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, values[i], res[i])
|
|
}
|
|
})
|
|
|
|
t.Run("test read ascii characters with utf32", func(t *testing.T) {
|
|
filePath := TempFilesPath + "varchar1.npy"
|
|
data := []string{"a ", "bbb", " c", "dd", "eeee", "fff"}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
res, err := adapter.ReadString(len(data) - 1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data)-1, len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
|
|
res, err = adapter.ReadString(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(res))
|
|
assert.Equal(t, data[len(data)-1], res[0])
|
|
|
|
res, err = adapter.ReadString(len(data))
|
|
assert.NotNil(t, err)
|
|
assert.Nil(t, res)
|
|
})
|
|
|
|
t.Run("test read non-ascii characters with utf32", func(t *testing.T) {
|
|
filePath := TempFilesPath + "varchar2.npy"
|
|
data := []string{"で と ど ", " 马克bbb", "$(한)삼각*"}
|
|
err := CreateNumpyFile(filePath, data)
|
|
assert.Nil(t, err)
|
|
|
|
file, err := os.Open(filePath)
|
|
assert.Nil(t, err)
|
|
defer file.Close()
|
|
|
|
adapter, err := NewNumpyAdapter(file)
|
|
assert.Nil(t, err)
|
|
res, err := adapter.ReadString(len(data))
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, len(data), len(res))
|
|
|
|
for i := 0; i < len(res); i++ {
|
|
assert.Equal(t, data[i], res[i])
|
|
}
|
|
})
|
|
}
|
|
|
|
func Test_DecodeUtf32(t *testing.T) {
|
|
// wrong input
|
|
res, err := decodeUtf32([]byte{1, 2}, binary.LittleEndian)
|
|
assert.NotNil(t, err)
|
|
assert.Empty(t, res)
|
|
|
|
// this string contains ascii characters and unicode characters
|
|
str := "ad◤三百🎵ゐ↙"
|
|
|
|
// utf32 littleEndian of str
|
|
src := []byte{97, 0, 0, 0, 100, 0, 0, 0, 228, 37, 0, 0, 9, 78, 0, 0, 126, 118, 0, 0, 181, 243, 1, 0, 144, 48, 0, 0, 153, 33, 0, 0}
|
|
res, err = decodeUtf32(src, binary.LittleEndian)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, str, res)
|
|
|
|
// utf32 bigEndian of str
|
|
src = []byte{0, 0, 0, 97, 0, 0, 0, 100, 0, 0, 37, 228, 0, 0, 78, 9, 0, 0, 118, 126, 0, 1, 243, 181, 0, 0, 48, 144, 0, 0, 33, 153}
|
|
res, err = decodeUtf32(src, binary.BigEndian)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, str, res)
|
|
}
|