1 files changed, 89 insertions, 0 deletions
diff --git a/internal/sync/branch_analyzer_test.go b/internal/sync/branch_analyzer_test.go
new file mode 100644
index 0000000..2a51bc7
--- /dev/null
+++ b/internal/sync/branch_analyzer_test.go
@@ -0,0 +1,89 @@
+package sync
+
+import (
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestFilterProtectedAbandonedBranchReport_SkipsProtectedBranches(t *testing.T) {
+	report := &AbandonedBranchReport{
+		AbandonedBranches: []BranchInfo{
+			{Name: "hosts"},
+			{Name: "feature/still-delete"},
+		},
+		AbandonedIgnoredBranches: []BranchInfo{
+			{Name: "hosts"},
+			{Name: "ignored/still-delete"},
+		},
+	}
+
+	filtered := filterProtectedAbandonedBranchReport("xerl", report)
+
+	if len(filtered.AbandonedBranches) != 1 || filtered.AbandonedBranches[0].Name != "feature/still-delete" {
+		t.Fatalf("expected protected abandoned branch to be filtered, got %#v", filtered.AbandonedBranches)
+	}
+
+	if len(filtered.AbandonedIgnoredBranches) != 1 || filtered.AbandonedIgnoredBranches[0].Name != "ignored/still-delete" {
+		t.Fatalf("expected protected ignored branch to be filtered, got %#v", filtered.AbandonedIgnoredBranches)
+	}
+
+	if len(report.AbandonedBranches) != 2 || len(report.AbandonedIgnoredBranches) != 2 {
+		t.Fatalf("expected original report to remain unchanged, got %#v", report)
+	}
+}
+
+func TestGenerateDeleteCommands_SkipsProtectedXerlHostsBranchOnly(t *testing.T) {
+	syncer := &Syncer{}
+	report := &AbandonedBranchReport{
+		AbandonedBranches: []BranchInfo{
+			{
+				Name:              "hosts",
+				LastCommit:        time.Date(2024, time.January, 2, 0, 0, 0, 0, time.UTC),
+				RemotesWithBranch: []string{"origin"},
+			},
+			{
+				Name:              "feature/still-delete",
+				LastCommit:        time.Date(2024, time.January, 3, 0, 0, 0, 0, time.UTC),
+				RemotesWithBranch: []string{"origin"},
+			},
+		},
+	}
+
+	commands := syncer.GenerateDeleteCommands(report, "xerl")
+
+	if strings.Contains(commands, "hosts") {
+		t.Fatalf("expected protected branch to be omitted from delete commands, got %q", commands)
+	}
+
+	if !strings.Contains(commands, "feature/still-delete") {
+		t.Fatalf("expected non-protected branch to remain in delete commands, got %q", commands)
+	}
+}
+
+func TestGenerateDeleteScript_ReturnsEmptyWhenOnlyProtectedBranchesRemain(t *testing.T) {
+	syncer := &Syncer{
+		workDir: t.TempDir(),
+		abandonedReports: map[string]*AbandonedBranchReport{
+			"xerl": {
+				MainBranchUpdated: true,
+				AbandonedBranches: []BranchInfo{
+					{
+						Name:              "hosts",
+						LastCommit:        time.Date(2024, time.January, 2, 0, 0, 0, 0, time.UTC),
+						RemotesWithBranch: []string{"origin"},
+					},
+				},
+			},
+		},
+	}
+
+	scriptPath, err := syncer.GenerateDeleteScript()
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+
+	if scriptPath != "" {
+		t.Fatalf("expected no delete script for protected branches, got %q", scriptPath)
+	}
+}