separate validation logic to simplify testing and use same logic as backend

scm-ui/src/users/components/userValidation.js

@@ -0,0 +1,24 @@
+// @flow
+
+const nameRegex = /^([A-z0-9\.\-_@]|[^ ]([A-z0-9\.\-_@ ]*[A-z0-9\.\-_@]|[^\s])?)$/;
+
+export const isNameValid = (name: string) => {
+  return nameRegex.test(name);
+};
+
+export const isDisplayNameValid = (displayName: string) => {
+  if (displayName) {
+    return true;
+  }
+  return false;
+};
+
+const mailRegex = /^[A-z0-9][\w.-]*@[A-z0-9][\w\-\.]*\.[A-z0-9][A-z0-9-]+$/;
+
+export const isMailValid = (mail: string) => {
+  return mailRegex.test(mail);
+};
+
+export const isPasswordValid = (password: string) => {
+  return password.length > 6 && password.length < 32;
+};