[#579] cmd/node: Add grpc section to config

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

cmd/neofs-node/config/grpc/config_test.go

@@ -0,0 +1,63 @@
+package grpcconfig
+
+import (
+	"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 TestGRPCSection(t *testing.T) {
+	t.Run("defaults", func(t *testing.T) {
+		empty := configtest.EmptyConfig()
+
+		tlsEnabled := TLS(empty).Enabled()
+
+		require.Equal(t, false, tlsEnabled)
+
+		require.PanicsWithError(
+			t,
+			errEndpointNotSet.Error(),
+			func() {
+				Endpoint(empty)
+			},
+		)
+
+		require.PanicsWithError(
+			t,
+			errTLSKeyNotSet.Error(),
+			func() {
+				TLS(empty).KeyFile()
+			},
+		)
+
+		require.PanicsWithError(
+			t,
+			errTLSCertNotSet.Error(),
+			func() {
+				TLS(empty).CertificateFile()
+			},
+		)
+	})
+
+	const path = "../../../../config/example/node"
+
+	var fileConfigTest = func(c *config.Config) {
+		addr := Endpoint(c)
+		tlsEnabled := TLS(c).Enabled()
+		tlsCert := TLS(c).CertificateFile()
+		tlsKey := TLS(c).KeyFile()
+
+		require.Equal(t, "s01.neofs.devenv:8080", addr)
+		require.Equal(t, true, tlsEnabled)
+		require.Equal(t, "/path/to/cert", tlsCert)
+		require.Equal(t, "/path/to/key", tlsKey)
+	}
+
+	configtest.ForEachFileType(path, fileConfigTest)
+
+	t.Run("ENV", func(t *testing.T) {
+		configtest.ForEnvFileType(path, fileConfigTest)
+	})
+}