Added unit test

Author: edu-diaz

internal/client/client_test.go

@@ -537,6 +537,24 @@ func TestOCIClientPushFileStoreCloseError(t *testing.T) {
 	}
 }
 
+func TestOCIClientPushAbsPathError(t *testing.T) {
+	// Stub absPathFunc to simulate failure
+	origAbs := absPathFunc
+	defer func() { absPathFunc = origAbs }()
+	absPathFunc = func(path string) (string, error) {
+		return "", fmt.Errorf("abs error")
+	}
+
+	cfg := &config.Config{DefaultRegistry: "example.com"}
+	client := NewOCIClient(cfg)
+
+	// Call Push: path value doesn't matter, stub will error first
+	err := client.Push(context.Background(), "oci://example.com/repo:tag", "somepath")
+	if err == nil || !strings.Contains(err.Error(), "failed to resolve absolute path somepath: abs error") {
+		t.Errorf("expected abs path error, got %v", err)
+	}
+}
+
 func TestOCIClientPushPackManifestError(t *testing.T) {
 	tmpFile, err := os.CreateTemp("", "test*.txt")
 	if err != nil {

internal/client/oci_client.go

@@ -49,6 +49,7 @@ var (
 	packManifest   = oras.PackManifest
 	copyFunc       = oras.Copy
 	contentFetcher = content.FetchAll
+	absPathFunc    = filepath.Abs
 )
 
 // OCIClient provides an implementation of Client for OCI registries.
@@ -116,7 +117,7 @@ func (c *OCIClient) Push(ctx context.Context, reference, path string) error {
 	}
 
 	// Resolve absolute path and split directory
-	absPath, err := filepath.Abs(path)
+	absPath, err := absPathFunc(path)
 	if err != nil {
 		return fmt.Errorf("failed to resolve absolute path %s: %w", path, err)
 	}