test: expand routing and compact coverage

internal/compact/git_test.go

@@ -0,0 +1,30 @@
+package compact
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestGetCurrentCommitHashSuccess(t *testing.T) {
+	orig := gitExec
+	gitExec = func(string, ...string) ([]byte, error) {
+		return []byte("abc123\n"), nil
+	}
+	t.Cleanup(func() { gitExec = orig })
+
+	if got := GetCurrentCommitHash(); got != "abc123" {
+		t.Fatalf("expected trimmed hash, got %q", got)
+	}
+}
+
+func TestGetCurrentCommitHashError(t *testing.T) {
+	orig := gitExec
+	gitExec = func(string, ...string) ([]byte, error) {
+		return nil, errors.New("boom")
+	}
+	t.Cleanup(func() { gitExec = orig })
+
+	if got := GetCurrentCommitHash(); got != "" {
+		t.Fatalf("expected empty string on error, got %q", got)
+	}
+}