[#144] registry: Add tests for obj registry exporter

Signed-off-by: Ekaterina Lebedeva <ekaterina.lebedeva@yadro.com>

internal/registry/obj_exporter.go

@@ -10,14 +10,17 @@ type ObjExporter struct {
 }
 
 type PreGenerateInfo struct {
-	Buckets []string  `json:"buckets"`
-	Objects []ObjInfo `json:"objects"`
-	ObjSize string    `json:"obj_size"`
+	Buckets    []string  `json:"buckets"`
+	Containers []string  `json:"containers"`
+	Objects    []ObjInfo `json:"objects"`
+	ObjSize    string    `json:"obj_size"`
 }
 
 type ObjInfo struct {
 	Bucket string `json:"bucket"`
 	Object string `json:"object"`
+	CID    string `json:"cid"`
+	OID    string `json:"oid"`
 }
 
 func NewObjExporter(selector *ObjSelector) *ObjExporter {

internal/registry/obj_exporter_test.go

@@ -0,0 +1,156 @@
+package registry
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"math/rand"
+	"os"
+	"path/filepath"
+	"slices"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+type expectedResult struct {
+	mode     string
+	objects  []ObjectInfo
+	dir      string
+	dbName   string
+	jsonName string
+}
+
+func TestObjectExporter(t *testing.T) {
+	names := []string{"s3", "grpc"}
+	for _, name := range names {
+		t.Run(name, runExportTest)
+		t.Run(name+"-changed", runExportChangedTest)
+		t.Run(name+"-empty", runExportEmptyTest)
+	}
+}
+
+func runExportTest(t *testing.T) {
+	expected := getExpectedResult(t)
+	objReg := getFilledRegistry(t, expected)
+	objExp := NewObjExporter(NewObjSelector(objReg, 0, SelectorOneshot, &ObjFilter{Status: statusCreated}))
+
+	require.NoError(t, objExp.ExportJSONPreGen(expected.jsonName))
+	require.NoError(t, checkExported(expected.objects, expected.jsonName))
+}
+
+func runExportChangedTest(t *testing.T) {
+	expected := getExpectedResult(t)
+	objReg := getFilledRegistry(t, expected)
+
+	newStatus := randString(10)
+	num := randPositiveInt(1, len(expected.objects))
+	changedObjects := make([]ObjectInfo, num)
+	require.Equal(t, num, copy(changedObjects[:], expected.objects[:]))
+
+	sel := NewObjSelector(objReg, 0, SelectorOneshot, &ObjFilter{Status: statusCreated})
+	for i := range changedObjects {
+		changedObjects[i].Status = newStatus
+		require.NoError(t, objReg.SetObjectStatus(sel.NextObject().Id, statusCreated, newStatus))
+	}
+
+	objExp := NewObjExporter(NewObjSelector(objReg, 0, SelectorOneshot, &ObjFilter{Status: newStatus}))
+	require.NoError(t, objExp.ExportJSONPreGen(expected.jsonName))
+	require.NoError(t, checkExported(changedObjects, expected.jsonName))
+}
+
+func runExportEmptyTest(t *testing.T) {
+	expected := getExpectedResult(t)
+	expected.objects = make([]ObjectInfo, 0)
+	objReg := getFilledRegistry(t, expected)
+	objExp := NewObjExporter(NewObjSelector(objReg, 0, SelectorOneshot, &ObjFilter{Status: statusCreated}))
+
+	require.NoError(t, objExp.ExportJSONPreGen(expected.jsonName))
+	require.NoError(t, checkExported(expected.objects, expected.jsonName))
+}
+
+func getExpectedResult(t *testing.T) expectedResult {
+	num := randPositiveInt(2, 100)
+	mode := getMode(t.Name())
+	require.NotEqual(t, "", mode, "test mode should contain either \"s3\" or\"grpc\"")
+	dir := t.TempDir()
+	res := expectedResult{
+		mode:     mode,
+		objects:  generateObjectInfo(num, t.Name()),
+		dir:      dir,
+		dbName:   filepath.Join(dir, "registry-"+mode+".db"),
+		jsonName: filepath.Join(dir, "registry-"+mode+".json"),
+	}
+	return res
+}
+
+func randPositiveInt(min, max int) int {
+	return rand.Intn(max-min) + min
+}
+
+func getMode(name string) (res string) {
+	if strings.Contains(name, "s3") {
+		res = filepath.Base(name)
+	}
+	if strings.Contains(name, "grpc") {
+		res = filepath.Base(name)
+	}
+	return res
+}
+
+func generateObjectInfo(num int, mode string) []ObjectInfo {
+	res := make([]ObjectInfo, num)
+	for i := range res {
+		res[i] = randomObjectInfo()
+		if !strings.Contains(mode, "s3") {
+			res[i].S3Bucket = ""
+			res[i].S3Key = ""
+		}
+		if !strings.Contains(mode, "grpc") {
+			res[i].CID = ""
+			res[i].OID = ""
+		}
+	}
+	return res
+}
+
+func getFilledRegistry(t *testing.T, expected expectedResult) *ObjRegistry {
+	objReg := NewObjRegistry(context.Background(), expected.dbName)
+	for i := range expected.objects {
+		require.NoError(t, objReg.AddObject(expected.objects[i].CID, expected.objects[i].OID, expected.objects[i].S3Bucket, expected.objects[i].S3Key, expected.objects[i].PayloadHash))
+	}
+	return objReg
+}
+
+func checkExported(expected []ObjectInfo, fileName string) error {
+	file, err := os.ReadFile(fileName)
+	if err != nil {
+		return err
+	}
+
+	if !json.Valid(file) {
+		return fmt.Errorf("exported json file %s is invalid", fileName)
+	}
+
+	var actual PreGenerateInfo
+	if json.Unmarshal(file, &actual) != nil {
+		return err
+	}
+
+	if len(expected) != len(actual.Objects) {
+		return fmt.Errorf("expected len(): %v, got len(): %v", len(expected), len(actual.Objects))
+	}
+
+	for i := range expected {
+		if !slices.ContainsFunc(actual.Objects, func(oi ObjInfo) bool {
+			compareS3 := oi.Bucket == expected[i].S3Bucket && oi.Object == expected[i].S3Key
+			comparegRPC := oi.CID == expected[i].CID && oi.OID == expected[i].OID
+			return compareS3 && comparegRPC
+		}) {
+			return fmt.Errorf("object %v not found in exported json file %s", expected[i], fileName)
+		}
+	}
+
+	return nil
+}