email y contraseña registro

lib/src/authentication/exceptions/register_failed.dart

@@ -0,0 +1,19 @@
+class SignUpWithEmailAndPasswordFailure {
+  final String message;
+
+  const SignUpWithEmailAndPasswordFailure(
+      [this.message = "An Unknown error ocurred."]);
+
+  factory SignUpWithEmailAndPasswordFailure.code(String code) {
+    switch (code) {
+      case 'weak-password':
+        return const SignUpWithEmailAndPasswordFailure(
+            'Please enter a stronger password.');
+      case 'email-alredy-in-use':
+        return const SignUpWithEmailAndPasswordFailure(
+            'An account alredy exists for that email.');
+      default:
+        return const SignUpWithEmailAndPasswordFailure();
+    }
+  }
+}