fix(showcase): exclude backup-suffixed repositories

1 files changed, 100 insertions, 0 deletions

diff --git a/internal/showcase/showcase_test.go b/internal/showcase/showcase_test.go
new file mode 100644
index 0000000..284a6bc
--- /dev/null
+++ b/internal/showcase/showcase_test.go
@@ -0,0 +1,100 @@
+package showcase
+
+import (
+	"reflect"
+	"testing"
+
+	"codeberg.org/snonux/gitsyncer/internal/config"
+)
+
+func TestIsBackupRepo(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name string
+		repo string
+		want bool
+	}{
+		{name: "exact bak suffix", repo: "foo.bak", want: true},
+		{name: "bak dot suffix", repo: "foo.bak.20260222", want: true},
+		{name: "bak dot with multiple segments", repo: "foo.bak.tmp.snapshot", want: true},
+		{name: "backup word", repo: "foo.backup", want: false},
+		{name: "bak as prefix", repo: "bak.foo", want: false},
+	}
+
+	for _, tc := range tests {
+		tc := tc
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+			got := isBackupRepo(tc.repo)
+			if got != tc.want {
+				t.Fatalf("isBackupRepo(%q) = %v, want %v", tc.repo, got, tc.want)
+			}
+		})
+	}
+}
+
+func TestIsExcluded_AdditiveRules(t *testing.T) {
+	t.Parallel()
+
+	g := &Generator{
+		config: &config.Config{
+			ExcludeFromShowcase: []string{"manual-exclude"},
+		},
+	}
+
+	tests := []struct {
+		name string
+		repo string
+		want bool
+	}{
+		{name: "excluded by config", repo: "manual-exclude", want: true},
+		{name: "excluded by backup suffix", repo: "repo.bak", want: true},
+		{name: "not excluded", repo: "normal-repo", want: false},
+	}
+
+	for _, tc := range tests {
+		tc := tc
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+			got := g.isExcluded(tc.repo)
+			if got != tc.want {
+				t.Fatalf("isExcluded(%q) = %v, want %v", tc.repo, got, tc.want)
+			}
+		})
+	}
+}
+
+func TestFilterExcludedRepos_RemovesBackupAndConfigRepos(t *testing.T) {
+	t.Parallel()
+
+	g := &Generator{
+		config: &config.Config{
+			ExcludeFromShowcase: []string{"manual-exclude"},
+		},
+	}
+
+	repos := []string{"normal", "manual-exclude", "mirror.bak", "mirror.bak.20260222", "keep"}
+	want := []string{"normal", "keep"}
+
+	got := g.filterExcludedRepos(repos)
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("filterExcludedRepos() = %#v, want %#v", got, want)
+	}
+}
+
+func TestFilterExcludedRepos_EmptyConfigStillRemovesBackupRepos(t *testing.T) {
+	t.Parallel()
+
+	g := &Generator{
+		config: &config.Config{},
+	}
+
+	repos := []string{"normal", "archive.bak", "archive.bak.old", "keep"}
+	want := []string{"normal", "keep"}
+
+	got := g.filterExcludedRepos(repos)
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("filterExcludedRepos() = %#v, want %#v", got, want)
+	}
+}