Adding upstream version 2.5.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

document/field_vector_base64_test.go

@@ -0,0 +1,112 @@
+//  Copyright (c) 2024 Couchbase, Inc.
+//
+// Licensed 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.
+
+//go:build vectors
+// +build vectors
+
+package document
+
+import (
+	"bytes"
+	"encoding/base64"
+	"encoding/binary"
+	"fmt"
+	"math/rand"
+	"testing"
+)
+
+func TestDecodeVector(t *testing.T) {
+	vec := make([]float32, 2048)
+	for i := range vec {
+		vec[i] = rand.Float32()
+	}
+
+	vecBytes := bytifyVec(vec)
+	encodedVec := base64.StdEncoding.EncodeToString(vecBytes)
+
+	decodedVector, err := DecodeVector(encodedVec)
+	if err != nil {
+		t.Error(err)
+	}
+	if len(decodedVector) != len(vec) {
+		t.Errorf("Decoded vector dimensions not same as original vector dimensions")
+	}
+
+	for i := range vec {
+		if vec[i] != decodedVector[i] {
+			t.Fatalf("Decoded vector not the same as original vector %v != %v", vec[i], decodedVector[i])
+		}
+	}
+}
+
+func BenchmarkDecodeVector128(b *testing.B) {
+	vec := make([]float32, 128)
+	for i := range vec {
+		vec[i] = rand.Float32()
+	}
+
+	vecBytes := bytifyVec(vec)
+	encodedVec := base64.StdEncoding.EncodeToString(vecBytes)
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		_, _ = DecodeVector(encodedVec)
+	}
+}
+
+func BenchmarkDecodeVector784(b *testing.B) {
+	vec := make([]float32, 784)
+	for i := range vec {
+		vec[i] = rand.Float32()
+	}
+
+	vecBytes := bytifyVec(vec)
+	encodedVec := base64.StdEncoding.EncodeToString(vecBytes)
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		_, _ = DecodeVector(encodedVec)
+	}
+}
+
+func BenchmarkDecodeVector1536(b *testing.B) {
+	vec := make([]float32, 1536)
+	for i := range vec {
+		vec[i] = rand.Float32()
+	}
+
+	vecBytes := bytifyVec(vec)
+	encodedVec := base64.StdEncoding.EncodeToString(vecBytes)
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		_, _ = DecodeVector(encodedVec)
+	}
+}
+
+func bytifyVec(vec []float32) []byte {
+	buf := new(bytes.Buffer)
+
+	for _, v := range vec {
+		err := binary.Write(buf, binary.LittleEndian, v)
+		if err != nil {
+			fmt.Println(err)
+		}
+	}
+
+	return buf.Bytes()
+}