From b8a5f09174351f11719e7c88a993d3e61fde032a Mon Sep 17 00:00:00 2001
From: Leonard Lyubich <leonard@nspcc.ru>
Date: Fri, 21 May 2021 16:46:15 +0300
Subject: [PATCH] [#493] node/config: Export useful functions into a separate
 test package

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
---
 cmd/neofs-node/config/calls_test.go  |  3 ++-
 cmd/neofs-node/config/cast_test.go   |  5 ++--
 cmd/neofs-node/config/config_test.go | 26 ---------------------
 cmd/neofs-node/config/test/config.go | 34 ++++++++++++++++++++++++++++
 4 files changed, 39 insertions(+), 29 deletions(-)
 delete mode 100644 cmd/neofs-node/config/config_test.go
 create mode 100644 cmd/neofs-node/config/test/config.go

diff --git a/cmd/neofs-node/config/calls_test.go b/cmd/neofs-node/config/calls_test.go
index b66eea7c..61d91250 100644
--- a/cmd/neofs-node/config/calls_test.go
+++ b/cmd/neofs-node/config/calls_test.go
@@ -4,11 +4,12 @@ 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 TestConfigCommon(t *testing.T) {
-	forEachFileType("test/config", func(c *config.Config) {
+	configtest.ForEachFileType("test/config", func(c *config.Config) {
 		val := c.Value("value")
 		require.NotNil(t, val)
 
diff --git a/cmd/neofs-node/config/cast_test.go b/cmd/neofs-node/config/cast_test.go
index 9d7b96cd..a2bb2f19 100644
--- a/cmd/neofs-node/config/cast_test.go
+++ b/cmd/neofs-node/config/cast_test.go
@@ -4,11 +4,12 @@ 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 TestStringSlice(t *testing.T) {
-	forEachFileType("test/config", func(c *config.Config) {
+	configtest.ForEachFileType("test/config", func(c *config.Config) {
 		cStringSlice := c.Sub("string_slice")
 
 		val := config.StringSlice(cStringSlice, "empty")
@@ -30,7 +31,7 @@ func TestStringSlice(t *testing.T) {
 }
 
 func TestString(t *testing.T) {
-	forEachFileType("test/config", func(c *config.Config) {
+	configtest.ForEachFileType("test/config", func(c *config.Config) {
 		c = c.Sub("string")
 
 		val := config.String(c, "correct")
diff --git a/cmd/neofs-node/config/config_test.go b/cmd/neofs-node/config/config_test.go
deleted file mode 100644
index 231f59b2..00000000
--- a/cmd/neofs-node/config/config_test.go
+++ /dev/null
@@ -1,26 +0,0 @@
-package config_test
-
-import (
-	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
-)
-
-func fromFile(path string) *config.Config {
-	var p config.Prm
-
-	return config.New(p,
-		config.WithConfigFile(path),
-	)
-}
-
-func forEachFile(paths []string, f func(*config.Config)) {
-	for i := range paths {
-		f(fromFile(paths[i]))
-	}
-}
-
-func forEachFileType(pref string, f func(*config.Config)) {
-	forEachFile([]string{
-		pref + ".yaml",
-		pref + ".json",
-	}, f)
-}
diff --git a/cmd/neofs-node/config/test/config.go b/cmd/neofs-node/config/test/config.go
new file mode 100644
index 00000000..a1b98ef8
--- /dev/null
+++ b/cmd/neofs-node/config/test/config.go
@@ -0,0 +1,34 @@
+package configtest
+
+import "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
+
+func fromFile(path string) *config.Config {
+	var p config.Prm
+
+	return config.New(p,
+		config.WithConfigFile(path),
+	)
+}
+
+func forEachFile(paths []string, f func(*config.Config)) {
+	for i := range paths {
+		f(fromFile(paths[i]))
+	}
+}
+
+// ForEachFileType passes configs read from next files:
+//  - `<pref>.yaml`;
+//  - `<pref>.json`.
+func ForEachFileType(pref string, f func(*config.Config)) {
+	forEachFile([]string{
+		pref + ".yaml",
+		pref + ".json",
+	}, f)
+}
+
+// EmptyConfig returns config without any values and sections.
+func EmptyConfig() *config.Config {
+	var p config.Prm
+
+	return config.New(p)
+}