1 files changed, 66 insertions, 0 deletions
diff --git a/lib/lib_test.go b/lib/lib_test.go
new file mode 100644
index 00000000..dabed27e
--- /dev/null
+++ b/lib/lib_test.go
@@ -0,0 +1,66 @@
+package lib
+
+import "testing"
+
+func TestConstants(t *testing.T) {
+	tests := []struct {
+		name     string
+		action   Action
+		expected bool
+	}{
+		{"ActionAdd in registry", ActionAdd, true},
+		{"ActionRemove in registry", ActionRemove, true},
+		{"ActionOutput in registry", ActionOutput, true},
+		{"Invalid action not in registry", Action("invalid"), false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := ActionsRegistry[tt.action]; got != tt.expected {
+				t.Errorf("ActionsRegistry[%s] = %v, want %v", tt.action, got, tt.expected)
+			}
+		})
+	}
+}
+
+func TestActionConstants(t *testing.T) {
+	if ActionAdd != "add" {
+		t.Errorf("ActionAdd = %s, want 'add'", ActionAdd)
+	}
+	if ActionRemove != "remove" {
+		t.Errorf("ActionRemove = %s, want 'remove'", ActionRemove)
+	}
+	if ActionOutput != "output" {
+		t.Errorf("ActionOutput = %s, want 'output'", ActionOutput)
+	}
+}
+
+func TestIPTypeConstants(t *testing.T) {
+	if IPv4 != "ipv4" {
+		t.Errorf("IPv4 = %s, want 'ipv4'", IPv4)
+	}
+	if IPv6 != "ipv6" {
+		t.Errorf("IPv6 = %s, want 'ipv6'", IPv6)
+	}
+}
+
+func TestCaseRemoveConstants(t *testing.T) {
+	if CaseRemovePrefix != 0 {
+		t.Errorf("CaseRemovePrefix = %d, want 0", CaseRemovePrefix)
+	}
+	if CaseRemoveEntry != 1 {
+		t.Errorf("CaseRemoveEntry = %d, want 1", CaseRemoveEntry)
+	}
+}
+
+func TestIgnoreIPv4(t *testing.T) {
+	if got := IgnoreIPv4(); got != IPv4 {
+		t.Errorf("IgnoreIPv4() = %v, want %v", got, IPv4)
+	}
+}
+
+func TestIgnoreIPv6(t *testing.T) {
+	if got := IgnoreIPv6(); got != IPv6 {
+		t.Errorf("IgnoreIPv6() = %v, want %v", got, IPv6)
+	}
+}