test: add ChangeType tests

Signed-off-by: Santiago M. Mola <[email protected]>

changes_test.go

@@ -0,0 +1,26 @@
+package compat
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestChangeTypeString(t *testing.T) {
+	require := require.New(t)
+	for i := 1; i < len(_ChangeType_index); i++ {
+		expected := ChangeType(i)
+		actual, err := ChangeTypeFromString(expected.String())
+		require.NoError(err)
+		require.Equal(expected, actual)
+	}
+}
+
+func TestChangeTypeStringError(t *testing.T) {
+	require := require.New(t)
+	for i := 0; i < len(_ChangeType_index); i++ {
+		actual, err := ChangeTypeFromString("BADTYPE")
+		require.Error(err)
+		require.Zero(actual)
+	}
+}