Organize backend into product executable and shared Go modules

backend/shared/database/internal/builder/query_test.go

@@ -0,0 +1,31 @@
+package builderimp
+
+import (
+	"testing"
+
+	"git.sendico.io/tech/sxchnge/shared/database/repository/builder"
+	"github.com/stretchr/testify/require"
+	"go.mongodb.org/mongo-driver/v2/bson"
+)
+
+func TestEmptySetComparisonsRemainBSONArrays(t *testing.T) {
+	field := NewFieldImp("organizationRef")
+
+	require.Equal(t,
+		bson.D{{Key: "organizationRef", Value: bson.M{string(builder.NotIn): []any{}}}},
+		NewQueryImp().NotIn(field).BuildQuery(),
+	)
+	require.Equal(t,
+		bson.D{{Key: "organizationRef", Value: bson.M{string(builder.In): []any{}}}},
+		NewQueryImp().In(field).BuildQuery(),
+	)
+}
+
+func TestSetComparisonsAcceptNilElements(t *testing.T) {
+	field := NewFieldImp("organizationRef")
+
+	require.Equal(t,
+		bson.D{{Key: "organizationRef", Value: bson.M{string(builder.NotIn): []any{"", nil}}}},
+		NewQueryImp().NotIn(field, "", nil).BuildQuery(),
+	)
+}