Add logic for more customizable password generator

passKitTests/Passwords/PasswordGeneratorFlavorTest.swift

@@ -0,0 +1,21 @@
+//
+//  PasswordGeneratorFlavorTest.swift
+//  passKitTests
+//
+//  Created by Danny Moesch on 28.11.18.
+//  Copyright © 2018 Bob Sun. All rights reserved.
+//
+
+import XCTest
+
+@testable import passKit
+
+class PasswordGeneratorFlavorTest: XCTestCase {
+
+    func testLengthLimits() {
+        // Ensure properly chosen length limits. So this check no longer needs to be performed in the code.
+        PasswordGeneratorFlavor.allCases.map { $0.lengthLimits }.forEach {
+            XCTAssertLessThanOrEqual($0.min, $0.max)
+        }
+    }
+}