chore: Test for Server Config Read #14125 (#14127)

(cherry picked from commit 9f46665)

Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com>

server/config/config_test.go

@@ -54,6 +54,18 @@ prefix = ""`
 	require.Contains(t, buffer.String(), expectedContents, "config file contents")
 }
 
+func TestReadConfig(t *testing.T) {
+	cfg := DefaultConfig()
+	tmpFile := filepath.Join(t.TempDir(), "config")
+	WriteConfigFile(tmpFile, cfg)
+
+	v := viper.New()
+	otherCfg, err := GetConfig(v)
+	require.NoError(t, err)
+
+	require.Equal(t, *cfg, otherCfg)
+}
+
 func TestIndexEventsWriteRead(t *testing.T) {
 	expected := []string{"key3", "key4"}