Add tests

src/config/config_test.go

@@ -0,0 +1,63 @@
+package config
+
+import (
+  "bytes"
+  "encoding/hex"
+  "testing"
+)
+
+func TestConfig_Keys(t *testing.T) {
+  var nodeConfig NodeConfig
+
+  if nodeConfig.PublicKey != "" {
+    t.Fatal("public key is not empty by default")
+  }
+
+  if nodeConfig.PrivateKey != "" {
+    t.Fatal("private key is not empty by default")
+  }
+
+  nodeConfig.NewKeys()
+
+  publicKey1, err := hex.DecodeString(nodeConfig.PublicKey)
+
+  if err != nil {
+    t.Fatal("can not decode generated public key")
+  }
+
+  if len(publicKey1) == 0 {
+    t.Fatal("empty public key generated")
+  }
+
+  privateKey1, err := hex.DecodeString(nodeConfig.PrivateKey)
+
+  if err != nil {
+    t.Fatal("can not decode generated private key")
+  }
+
+  if len(privateKey1) == 0 {
+    t.Fatal("empty private key generated")
+  }
+
+  nodeConfig.NewKeys()
+
+  publicKey2, err := hex.DecodeString(nodeConfig.PublicKey)
+
+  if err != nil {
+    t.Fatal("can not decode generated public key")
+  }
+
+  if bytes.Equal(publicKey2, publicKey1) {
+    t.Fatal("same public key generated")
+  }
+
+  privateKey2, err := hex.DecodeString(nodeConfig.PrivateKey)
+
+  if err != nil {
+    t.Fatal("can not decode generated private key")
+  }
+
+  if bytes.Equal(privateKey2, privateKey1) {
+    t.Fatal("same private key generated")
+  }
+}