[#6] Fix test struct tag naming

Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>

internal/s3/structure_test.go

@@ -0,0 +1,17 @@
+package s3
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestStructParsing(t *testing.T) {
+	structure, err := ParseTestsStruct()
+	require.NoError(t, err)
+
+	for _, group := range structure.Groups {
+		require.NotEmptyf(t, group.Tag, "group tag must not be empty: %v", group)
+		require.NotEmptyf(t, group.Name, "group name must not be empty: %v", group)
+	}
+}