diff --git a/pkg/database/source_test.go b/pkg/database/source_test.go
new file mode 100644
index 0000000..0006052
--- /dev/null
+++ b/pkg/database/source_test.go
@@ -0,0 +1,546 @@
+package database
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"testing"
+	"time"
+
+	"git.anthrove.art/Anthrove/otter-space-sdk/v2/pkg/models"
+	"git.anthrove.art/Anthrove/otter-space-sdk/v2/test"
+	"go.opentelemetry.io/contrib/bridges/otellogrus"
+	"go.opentelemetry.io/otel"
+	"gorm.io/gorm"
+)
+
+func TestCreateSource(t *testing.T) {
+	// Setup trow away container
+	ctx := context.Background()
+	container, gormDB, err := test.StartPostgresContainer(ctx)
+	if err != nil {
+		logger.Fatalf("Could not start PostgreSQL container: %v", err)
+	}
+
+	client = gormDB
+
+	// Setup open telemetry
+	tracer = otel.Tracer(tracingName)
+
+	hook := otellogrus.NewHook(tracingName)
+	logger.AddHook(hook)
+
+	defer container.Terminate(ctx)
+
+	// -- -- Setup Tests
+
+	// -- Create Source to test with
+	validSource := models.Source{
+		BaseModel: models.BaseModel[models.SourceID]{
+			ID:        models.SourceID(fmt.Sprintf("%025s", "Source1")),
+			CreatedAt: time.Now(),
+			UpdatedAt: time.Now(),
+			DeletedAt: gorm.DeletedAt{},
+		},
+		DisplayName: "e621",
+		Domain:      "e621.net",
+		Icon:        "e621.net/icon.png",
+	}
+	// --
+
+	// -- -- Tests
+	type args struct {
+		ctx    context.Context
+		source models.Source
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    models.Source
+		wantErr bool
+	}{
+		{
+			name: "Test 01: Valid Source",
+			args: args{
+				ctx:    ctx,
+				source: validSource,
+			},
+			want:    validSource,
+			wantErr: false,
+		},
+		{
+			name: "Test 02: Duplicate Source",
+			args: args{
+				ctx:    ctx,
+				source: validSource,
+			},
+			want:    models.Source{},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := CreateSource(tt.args.ctx, tt.args.source)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("CreateSource() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("CreateSource() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestCreateSourceInBatch(t *testing.T) {
+	// Setup trow away container
+	ctx := context.Background()
+	container, gormDB, err := test.StartPostgresContainer(ctx)
+	if err != nil {
+		logger.Fatalf("Could not start PostgreSQL container: %v", err)
+	}
+
+	client = gormDB
+
+	// Setup open telemetry
+	tracer = otel.Tracer(tracingName)
+
+	hook := otellogrus.NewHook(tracingName)
+	logger.AddHook(hook)
+
+	defer container.Terminate(ctx)
+
+	// -- -- Setup Tests
+
+	// -- Create Sources to test with
+	validSources := test.GenerateRandomSources(5)
+	// --
+
+	// -- -- Tests
+	type args struct {
+		ctx       context.Context
+		source    []models.Source
+		batchSize int
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "Test 01: Valid Sources",
+			args: args{
+				ctx:       ctx,
+				source:    validSources,
+				batchSize: len(validSources),
+			},
+			wantErr: false,
+		},
+		{
+			name: "Test 02: Duplicate Sources",
+			args: args{
+				ctx:       ctx,
+				source:    validSources,
+				batchSize: len(validSources),
+			},
+			wantErr: true,
+		},
+		{
+			name: "Test 03: Nil Sources",
+			args: args{
+				ctx:       ctx,
+				source:    nil,
+				batchSize: len(validSources),
+			},
+			wantErr: true,
+		},
+		{
+			name: "Test 04: Empty Sources",
+			args: args{
+				ctx:       ctx,
+				source:    []models.Source{},
+				batchSize: len(validSources),
+			},
+			wantErr: true,
+		},
+		{
+			name: "Test 08: Empty Batch Size",
+			args: args{
+				ctx:       ctx,
+				source:    []models.Source{},
+				batchSize: 0,
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := CreateSourceInBatch(tt.args.ctx, tt.args.source, tt.args.batchSize); (err != nil) != tt.wantErr {
+				t.Errorf("CreateSourceInBatch() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestUpdateSource(t *testing.T) {
+	// Setup trow away container
+	ctx := context.Background()
+	container, gormDB, err := test.StartPostgresContainer(ctx)
+	if err != nil {
+		logger.Fatalf("Could not start PostgreSQL container: %v", err)
+	}
+
+	client = gormDB
+
+	// Setup open telemetry
+	tracer = otel.Tracer(tracingName)
+
+	hook := otellogrus.NewHook(tracingName)
+	logger.AddHook(hook)
+
+	defer container.Terminate(ctx)
+
+	// -- -- Setup Tests
+
+	// -- Create Source to test with
+	validSource := models.Source{
+		BaseModel: models.BaseModel[models.SourceID]{
+			ID:        models.SourceID(fmt.Sprintf("%025s", "Source1")),
+			CreatedAt: time.Now(),
+			UpdatedAt: time.Now(),
+			DeletedAt: gorm.DeletedAt{},
+		},
+		DisplayName: "e621",
+		Domain:      "e621.net",
+		Icon:        "e621.net/icon.png",
+	}
+
+	validSource, err = CreateSource(ctx, validSource)
+	if err != nil {
+		t.Fatalf("CreateSource err: %v", err)
+	}
+	// --
+
+	// -- Create Updates models for UserSource
+	validUpdateSource := validSource
+	validUpdateSource.DisplayName = "eeeee"
+	validUpdateSource.Domain = "aaaaa"
+	validUpdateSource.Icon = "nnnn"
+
+	invalidUpdateSource := models.Source{}
+	// --
+
+	// -- -- Tests
+	type args struct {
+		ctx    context.Context
+		source models.Source
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "Test 01: Valid Update for Source",
+			args: args{
+				ctx:    ctx,
+				source: validUpdateSource,
+			},
+			wantErr: false,
+		},
+		{
+			name: "Test 02: Invalid Update for Source",
+			args: args{
+				ctx:    ctx,
+				source: invalidUpdateSource,
+			},
+			wantErr: true,
+		},
+		{
+			name: "Test 03: Empty ID for Update for Source",
+			args: args{
+				ctx:    ctx,
+				source: models.Source{BaseModel: models.BaseModel[models.SourceID]{ID: ""}},
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := UpdateSource(tt.args.ctx, tt.args.source); (err != nil) != tt.wantErr {
+				t.Errorf("UpdateSource() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestGetSourceByID(t *testing.T) {
+	// Setup trow away container
+	ctx := context.Background()
+	container, gormDB, err := test.StartPostgresContainer(ctx)
+	if err != nil {
+		logger.Fatalf("Could not start PostgreSQL container: %v", err)
+	}
+
+	client = gormDB
+
+	// Setup open telemetry
+	tracer = otel.Tracer(tracingName)
+
+	hook := otellogrus.NewHook(tracingName)
+	logger.AddHook(hook)
+
+	defer container.Terminate(ctx)
+
+	// -- -- Setup Tests
+
+	// -- Create Source to test with
+	validSource := models.Source{
+		BaseModel: models.BaseModel[models.SourceID]{
+			ID:        models.SourceID(fmt.Sprintf("%025s", "Source1")),
+			CreatedAt: time.Now(),
+			UpdatedAt: time.Now(),
+			DeletedAt: gorm.DeletedAt{},
+		},
+		DisplayName: "e621",
+		Domain:      "e621.net",
+		Icon:        "e621.net/icon.png",
+	}
+
+	validSource, err = CreateSource(ctx, validSource)
+	if err != nil {
+		t.Fatalf("CreateSource err: %v", err)
+	}
+	// --
+
+	// -- -- Tests
+	type args struct {
+		ctx context.Context
+		id  models.SourceID
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    models.Source
+		wantErr bool
+	}{
+		{
+			name: "Test 01: Valid Source ID",
+			args: args{
+				ctx: ctx,
+				id:  validSource.ID,
+			},
+			want:    validSource,
+			wantErr: false,
+		},
+		{
+			name: "Test 03: Empty SourceID",
+			args: args{
+				ctx: ctx,
+				id:  "",
+			},
+			wantErr: true,
+		},
+		{
+			name: "Test 04: Short SourceID",
+			args: args{
+				ctx: ctx,
+				id:  "111",
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := GetSourceByID(tt.args.ctx, tt.args.id)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("GetSourceByID() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !checkSourceID(got, tt.want) {
+				t.Errorf("GetSourceByID() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestGetSourceByDomain(t *testing.T) {
+	// Setup trow away container
+	ctx := context.Background()
+	container, gormDB, err := test.StartPostgresContainer(ctx)
+	if err != nil {
+		logger.Fatalf("Could not start PostgreSQL container: %v", err)
+	}
+
+	client = gormDB
+
+	// Setup open telemetry
+	tracer = otel.Tracer(tracingName)
+
+	hook := otellogrus.NewHook(tracingName)
+	logger.AddHook(hook)
+
+	defer container.Terminate(ctx)
+
+	// -- -- Setup Tests
+
+	// -- Create Source to test with
+	validSource := models.Source{
+		BaseModel: models.BaseModel[models.SourceID]{
+			ID:        models.SourceID(fmt.Sprintf("%025s", "Source1")),
+			CreatedAt: time.Now(),
+			UpdatedAt: time.Now(),
+			DeletedAt: gorm.DeletedAt{},
+		},
+		DisplayName: "e621",
+		Domain:      "e621.net",
+		Icon:        "e621.net/icon.png",
+	}
+
+	validSource, err = CreateSource(ctx, validSource)
+	if err != nil {
+		t.Fatalf("CreateSource err: %v", err)
+	}
+	// --
+
+	// -- -- Tests
+	type args struct {
+		ctx          context.Context
+		sourceDomain models.SourceDomain
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    models.Source
+		wantErr bool
+	}{
+		{
+			name: "Test 01: Valid SourceURL",
+			args: args{
+				ctx:          ctx,
+				sourceDomain: validSource.Domain,
+			},
+			want:    validSource,
+			wantErr: false,
+		},
+		{
+			name: "Test 02: Empty SourceURL",
+			args: args{
+				ctx:          ctx,
+				sourceDomain: "",
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := GetSourceByDomain(tt.args.ctx, tt.args.sourceDomain)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("GetSourceByDomain() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !checkSourceID(got, tt.want) {
+				t.Errorf("GetSourceByDomain() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestDeleteSource(t *testing.T) {
+	// Setup trow away container
+	ctx := context.Background()
+	container, gormDB, err := test.StartPostgresContainer(ctx)
+	if err != nil {
+		logger.Fatalf("Could not start PostgreSQL container: %v", err)
+	}
+
+	client = gormDB
+
+	// Setup open telemetry
+	tracer = otel.Tracer(tracingName)
+
+	hook := otellogrus.NewHook(tracingName)
+	logger.AddHook(hook)
+
+	defer container.Terminate(ctx)
+
+	// -- -- Setup Tests
+
+	// -- Create Source to test with
+	validSource := models.Source{
+		BaseModel: models.BaseModel[models.SourceID]{
+			ID:        models.SourceID(fmt.Sprintf("%025s", "Source1")),
+			CreatedAt: time.Now(),
+			UpdatedAt: time.Now(),
+			DeletedAt: gorm.DeletedAt{},
+		},
+		DisplayName: "e621",
+		Domain:      "e621.net",
+		Icon:        "e621.net/icon.png",
+	}
+
+	validSource, err = CreateSource(ctx, validSource)
+	if err != nil {
+		t.Fatalf("CreateSource err: %v", err)
+	}
+	// --
+
+	// -- -- Tests
+	type args struct {
+		ctx context.Context
+		id  models.SourceID
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "Test 01: Delete Valid Source",
+			args: args{
+				ctx: ctx,
+				id:  validSource.ID,
+			},
+			wantErr: false,
+		},
+		{
+			name: "Test 02: Delete not existed Source",
+			args: args{
+				ctx: ctx,
+				id:  validSource.ID,
+			},
+			wantErr: false,
+		},
+		{
+			name: "Test 03: Empty SourceID",
+			args: args{
+				ctx: ctx,
+				id:  "",
+			},
+			wantErr: true,
+		},
+		{
+			name: "Test 04: Short SourceID",
+			args: args{
+				ctx: ctx,
+				id:  "111",
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := DeleteSource(tt.args.ctx, tt.args.id); (err != nil) != tt.wantErr {
+				t.Errorf("DeleteSource() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func checkSourceID(got models.Source, want models.Source) bool {
+	if got.ID != want.ID {
+		return false
+	}
+
+	return true
+}