[#284] tests: Add a test for checking VERSION file

Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>

tests/version_test.go

@@ -0,0 +1,29 @@
+package tests
+
+import (
+	"os"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/nspcc-dev/neofs-contract/common"
+	"github.com/stretchr/testify/require"
+)
+
+func TestVersion(t *testing.T) {
+	data, err := os.ReadFile("../VERSION")
+	require.NoError(t, err)
+
+	v := strings.TrimPrefix(string(data), "v")
+	parts := strings.Split(strings.TrimSpace(v), ".")
+	require.Len(t, parts, 3)
+
+	var ver [3]int
+	for i := range parts {
+		ver[i], err = strconv.Atoi(parts[i])
+		require.NoError(t, err)
+	}
+
+	require.Equal(t, common.Version, ver[0]*1_000_000+ver[1]*1_000+ver[2],
+		"version from common package is different from the one in VERSION file")
+}