diff --git a/pkg/core/interop/enumerator/interop_test.go b/pkg/core/interop/enumerator/interop_test.go
new file mode 100644
index 000000000..20149455d
--- /dev/null
+++ b/pkg/core/interop/enumerator/interop_test.go
@@ -0,0 +1,35 @@
+package enumerator
+
+import (
+	"math/big"
+	"testing"
+
+	"github.com/nspcc-dev/neo-go/pkg/core/interop"
+	"github.com/nspcc-dev/neo-go/pkg/vm"
+	"github.com/stretchr/testify/require"
+)
+
+// Enumerator is thoroughly tested in VM package, these are smoke tests.
+func TestEnumerator(t *testing.T) {
+	ic := &interop.Context{VM: vm.New()}
+	full := []byte{4, 8, 15}
+	ic.VM.Estack().PushVal(full[2:])
+	require.NoError(t, Create(ic))
+	ic.VM.Estack().PushVal(full[:2])
+	require.NoError(t, Create(ic))
+	require.NoError(t, Concat(ic))
+
+	res := ic.VM.Estack().Pop().Item()
+	for i := range full {
+		ic.VM.Estack().PushVal(res)
+		require.NoError(t, Next(ic))
+		require.True(t, ic.VM.Estack().Pop().Bool())
+		ic.VM.Estack().PushVal(res)
+		require.NoError(t, Value(ic))
+		require.Equal(t, big.NewInt(int64(full[i])), ic.VM.Estack().Pop().BigInt())
+	}
+
+	ic.VM.Estack().PushVal(res)
+	require.NoError(t, Next(ic))
+	require.False(t, ic.VM.Estack().Pop().Bool())
+}
diff --git a/pkg/core/interop/iterator/interop_test.go b/pkg/core/interop/iterator/interop_test.go
new file mode 100644
index 000000000..b220b5271
--- /dev/null
+++ b/pkg/core/interop/iterator/interop_test.go
@@ -0,0 +1,48 @@
+package iterator
+
+import (
+	"math/big"
+	"testing"
+
+	"github.com/nspcc-dev/neo-go/pkg/core/interop"
+	"github.com/nspcc-dev/neo-go/pkg/vm"
+	"github.com/stretchr/testify/require"
+)
+
+// Iterator is thoroughly tested in VM package, these are smoke tests.
+func TestIterator(t *testing.T) {
+	ic := &interop.Context{VM: vm.New()}
+	full := []byte{4, 8, 15}
+	ic.VM.Estack().PushVal(full[2:])
+	require.NoError(t, Create(ic))
+	ic.VM.Estack().PushVal(full[:2])
+	require.NoError(t, Create(ic))
+	require.NoError(t, Concat(ic))
+
+	res := ic.VM.Estack().Pop().Item()
+	ic.VM.Estack().PushVal(res)
+	require.NoError(t, vm.EnumeratorNext(ic.VM))
+	require.True(t, ic.VM.Estack().Pop().Bool())
+
+	ic.VM.Estack().PushVal(res)
+	require.NoError(t, Key(ic))
+	require.Equal(t, big.NewInt(0), ic.VM.Estack().Pop().BigInt())
+
+	ic.VM.Estack().PushVal(res)
+	require.NoError(t, vm.EnumeratorValue(ic.VM))
+	require.Equal(t, big.NewInt(int64(full[0])), ic.VM.Estack().Pop().BigInt())
+
+	ic.VM.Estack().PushVal(res)
+	require.NoError(t, vm.EnumeratorNext(ic.VM))
+	require.True(t, ic.VM.Estack().Pop().Bool())
+
+	ic.VM.Estack().PushVal(res)
+	require.NoError(t, Keys(ic))
+	require.NoError(t, vm.EnumeratorValue(ic.VM))
+	require.Equal(t, big.NewInt(1), ic.VM.Estack().Pop().BigInt())
+
+	ic.VM.Estack().PushVal(res)
+	require.NoError(t, Values(ic))
+	require.NoError(t, vm.EnumeratorValue(ic.VM))
+	require.Equal(t, big.NewInt(int64(full[1])), ic.VM.Estack().Pop().BigInt())
+}