Add app backend factory wiring

internal/app/backends_test.go

@@ -0,0 +1,72 @@
+package app
+
+import (
+	"context"
+	"strings"
+	"testing"
+
+	"gitea.maximumdirect.net/eric/distributor/internal/config"
+)
+
+func TestBackendFactoryOpensLocalSource(t *testing.T) {
+	factory := newBackendFactory()
+	backend, err := factory.openSource(context.Background(), config.Backend{
+		Backend: config.BackendLocal,
+		Path:    t.TempDir(),
+	})
+	if err != nil {
+		t.Fatalf("openSource() error = %v", err)
+	}
+	if backend == nil {
+		t.Fatal("openSource() backend = nil")
+	}
+}
+
+func TestBackendFactoryOpensLocalDestination(t *testing.T) {
+	factory := newBackendFactory()
+	backend, err := factory.openDestination(context.Background(), config.Destination{
+		Backend: config.BackendLocal,
+		Path:    t.TempDir(),
+	})
+	if err != nil {
+		t.Fatalf("openDestination() error = %v", err)
+	}
+	if backend == nil {
+		t.Fatal("openDestination() backend = nil")
+	}
+}
+
+func TestBackendFactoryOpensDirectLocalPath(t *testing.T) {
+	factory := newBackendFactory()
+	backend, err := factory.openLocalPath(context.Background(), t.TempDir())
+	if err != nil {
+		t.Fatalf("openLocalPath() error = %v", err)
+	}
+	if backend == nil {
+		t.Fatal("openLocalPath() backend = nil")
+	}
+}
+
+func TestBackendFactoryRejectsUnsupportedSource(t *testing.T) {
+	factory := newBackendFactory()
+	_, err := factory.openSource(context.Background(), config.Backend{
+		Backend: config.BackendSSH,
+		URI:     "ssh://reports@example.com:22",
+		Path:    "/reports",
+	})
+	if err == nil || !strings.Contains(err.Error(), "source backend ssh is not implemented for execution") {
+		t.Fatalf("openSource() error = %v, want not implemented", err)
+	}
+}
+
+func TestBackendFactoryRejectsUnsupportedDestination(t *testing.T) {
+	factory := newBackendFactory()
+	_, err := factory.openDestination(context.Background(), config.Destination{
+		Backend:  config.BackendS3,
+		Endpoint: "https://s3.example.com",
+		Bucket:   "reports",
+	})
+	if err == nil || !strings.Contains(err.Error(), "backend s3 is not implemented for execution") {
+		t.Fatalf("openDestination() error = %v, want not implemented", err)
+	}
+}