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b4cb8a4b13
issue: https://github.com/milvus-io/milvus/issues/40684 --------- Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
118 lines
3.5 KiB
Go
118 lines
3.5 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package numpy
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import (
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"bytes"
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"encoding/binary"
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"io"
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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"golang.org/x/text/encoding/simplifiedchinese"
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"golang.org/x/text/transform"
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"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
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"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
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)
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func encodeToGB2312(input string) ([]byte, error) {
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encoder := simplifiedchinese.GB18030.NewEncoder() // GB18030 is compatible with GB2312.
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var buf bytes.Buffer
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writer := transform.NewWriter(&buf, encoder)
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_, err := writer.Write([]byte(input))
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if err != nil {
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return nil, err
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}
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return buf.Bytes(), nil
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}
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func WriteNonUTF8Npy() io.Reader {
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// Use bytes.Buffer instead of writing to a file
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var buffer bytes.Buffer
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// Step 1: Write Magic Number and version
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buffer.Write([]byte{0x93, 'N', 'U', 'M', 'P', 'Y'})
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buffer.Write([]byte{1, 0}) // Numpy 1.0 version
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// Step 2: Construct the header (using '|S20' for 20-byte fixed-length strings)
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header := "{'descr': '|S20', 'fortran_order': False, 'shape': (6,), }"
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headerBytes := []byte(header)
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// Pad the header to align its length to a multiple of 64 bytes
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padding := 64 - (10+len(headerBytes)+1)%64
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headerBytes = append(headerBytes, make([]byte, padding)...)
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headerBytes = append(headerBytes, '\n')
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// Write the header length and the header itself
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binary.Write(&buffer, binary.LittleEndian, uint16(len(headerBytes)))
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buffer.Write(headerBytes)
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// Step 3: Write non-UTF-8 string data (e.g., Latin1 encoded)
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testStrings := []string{
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"hello, vector database", // valid utf-8
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string([]byte{0xC3, 0xA9, 0xB5, 0xF1}), // Latin1 encoded "éµñ"
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string([]byte{0xB0, 0xE1, 0xF2, 0xBD}), // Random non-UTF-8 data
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string([]byte{0xD2, 0xA9, 0xC8, 0xFC}), // Another set of non-UTF-8 data
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}
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for _, str := range testStrings {
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data := make([]byte, 20)
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copy(data, str)
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buffer.Write(data)
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}
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// Step 4: Encode and write GB-2312 Chinese strings
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chineseStrings := []string{
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"你好，世界", // "Hello, World"
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"向量数据库", // "Data Storage"
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}
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for _, str := range chineseStrings {
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gb2312Data, err := encodeToGB2312(str)
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if err != nil {
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panic(err)
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}
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data := make([]byte, 20)
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copy(data, gb2312Data)
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buffer.Write(data)
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}
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// Step 5: Convert buffer to a reader to simulate file reading
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reader := bytes.NewReader(buffer.Bytes())
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return reader
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}
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func TestInvalidUTF8(t *testing.T) {
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fieldSchema := &schemapb.FieldSchema{
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FieldID: 100,
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Name: "str",
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DataType: schemapb.DataType_VarChar,
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TypeParams: []*commonpb.KeyValuePair{{Key: "max_length", Value: "256"}},
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}
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reader := WriteNonUTF8Npy()
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fr, err := NewFieldReader(reader, fieldSchema)
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assert.NoError(t, err)
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_, err = fr.Next(int64(6))
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assert.Error(t, err)
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assert.True(t, strings.Contains(err.Error(), "contains invalid UTF-8 data"))
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}
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