1 files changed, 41 insertions, 0 deletions
diff --git a/internal/eventloop_constructor_test.go b/internal/eventloop_constructor_test.go
new file mode 100644
index 0000000..52ca570
--- /dev/null
+++ b/internal/eventloop_constructor_test.go
@@ -0,0 +1,41 @@
+package internal
+
+import (
+	"strings"
+	"testing"
+
+	"ior/internal/types"
+)
+
+func mustNewEventLoop(tb testing.TB, cfg eventLoopConfig) *eventLoop {
+	tb.Helper()
+	el, err := newEventLoop(cfg)
+	if err != nil {
+		tb.Fatalf("newEventLoop() error = %v", err)
+	}
+	return el
+}
+
+func TestNewEventFilterRejectsTooLongCommFilter(t *testing.T) {
+	tooLong := strings.Repeat("a", types.MAX_PROGNAME_LENGTH+1)
+	_, err := newEventFilter(tooLong, "")
+	if err == nil {
+		t.Fatalf("expected error for comm filter longer than %d", types.MAX_PROGNAME_LENGTH)
+	}
+}
+
+func TestNewEventFilterRejectsTooLongPathFilter(t *testing.T) {
+	tooLong := strings.Repeat("a", types.MAX_FILENAME_LENGTH+1)
+	_, err := newEventFilter("", tooLong)
+	if err == nil {
+		t.Fatalf("expected error for path filter longer than %d", types.MAX_FILENAME_LENGTH)
+	}
+}
+
+func TestNewEventLoopPropagatesFilterError(t *testing.T) {
+	tooLong := strings.Repeat("a", types.MAX_PROGNAME_LENGTH+1)
+	_, err := newEventLoop(eventLoopConfig{commFilter: tooLong})
+	if err == nil {
+		t.Fatalf("expected newEventLoop to propagate invalid filter error")
+	}
+}