[#1764] neofs-node: Validate config before usage

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

cmd/neofs-node/validate_test.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
+	configtest "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/test"
+	"github.com/stretchr/testify/require"
+)
+
+func TestValidate(t *testing.T) {
+	const exampleConfigPrefix = "../../config/"
+	t.Run("examples", func(t *testing.T) {
+		p := filepath.Join(exampleConfigPrefix, "example/node")
+		configtest.ForEachFileType(p, func(c *config.Config) {
+			var err error
+			require.NotPanics(t, func() {
+				err = validateConfig(c)
+			})
+			require.NoError(t, err)
+		})
+	})
+
+	t.Run("mainnet", func(t *testing.T) {
+		os.Clearenv() // ENVs have priority over config files, so we do this in tests
+		p := filepath.Join(exampleConfigPrefix, "mainnet/config.yml")
+		c := config.New(config.Prm{}, config.WithConfigFile(p))
+		require.NoError(t, validateConfig(c))
+	})
+	t.Run("testnet", func(t *testing.T) {
+		os.Clearenv() // ENVs have priority over config files, so we do this in tests
+		p := filepath.Join(exampleConfigPrefix, "testnet/config.yml")
+		c := config.New(config.Prm{}, config.WithConfigFile(p))
+		require.NoError(t, validateConfig(c))
+	})
+}