Fix for default case of using GlobalRegistry

plugin.go

@@ -48,7 +48,7 @@ type (
 )
 
 // GlobalRegistry defines the default NPM registry.
-const GlobalRegistry = "https://registry.npmjs.org"
+const GlobalRegistry = "https://registry.npmjs.org/"
 
 // Exec executes the plugin.
 func (p Plugin) Exec() error {

plugin_test.go

@@ -21,4 +21,11 @@ func TestTokenRCContents(t *testing.T) {
 	if actual != expected {
 		t.Errorf("Unexpected token config (Got: %s, Expected: %s)", actual, expected)
 	}
+
+	conf.Registry = GlobalRegistry
+	actual = npmrcContentsToken(conf)
+	expected = "//registry.npmjs.org/:_authToken=token"
+	if actual != expected {
+		t.Errorf("Unexpected token config (Got: %s, Expected: %s)", actual, expected)
+	}
 }