bgneal@3: // Copyright (C) 2012 by Brian Neal.
bgneal@3: // This file is part of Cpp-Enigma, the Enigma Machine simulation.
bgneal@3: // Cpp-Enigma is released under the MIT License (see License.txt).
bgneal@3: //
bgneal@3: // test_plugboard.t.h - Unit tests for the plugboard class.
bgneal@3: 
bgneal@3: #include <cxxtest/TestSuite.h>
bgneal@3: #include "plugboard.h"
bgneal@3: 
bgneal@3: using namespace enigma;
bgneal@3: 
bgneal@3: 
bgneal@3: class plugboard_test_suite : public CxxTest::TestSuite
bgneal@3: {
bgneal@3: public:
bgneal@3: 
bgneal@3:    void test_bad_settings()
bgneal@3:    {
bgneal@3:       // too many
bgneal@3:       TS_ASSERT_THROWS(plugboard("AB CD EF GH IJ KL MN OP QR ST UV"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("18/26 17/4 21/6 3/16 19/14 22/7 8/1 12/25 5/9 10/15 2/20"),
bgneal@3:                        plugboard_error);
bgneal@3: 
bgneal@3:       // duplicate
bgneal@3:       TS_ASSERT_THROWS(plugboard("AB CD EF GH IJ KL MN OF QR ST"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("AB CD EF GH IJ KL MN FP QR ST"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("18/26 17/4 21/6 3/16 19/14 22/3 8/1 12/25"), plugboard_error);
bgneal@3: 
bgneal@3:       // invalid
bgneal@3:       TS_ASSERT_THROWS(plugboard("A2 CD EF GH IJ KL MN FP QR ST"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("AB CD EF *H IJ KL MN FP QR ST"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("ABCD EF GH IJKLMN OP"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("A-D EF GH OP"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("A"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("9"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("1*/26 17/4 21/6 3/16 19/14 22/3 8/1 12/25"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("18/26 17/4 2A/6 3/16 19/14 22/3 8/1 12/25"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("100/2"), plugboard_error);
bgneal@3:       TS_ASSERT_THROWS(plugboard("T/C"), plugboard_error);
bgneal@3:    }
bgneal@3: 
bgneal@3:    void test_valid_settings()
bgneal@3:    {
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{});
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{""});
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard(plugboard::pair_vector{}));
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{"AB CD EF GH IJ KL MN OP QR ST"});
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{"CD EF GH IJ KL MN OP QR ST"});
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{"EF GH IJ KL MN OP QR ST"});
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{" GH "});
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{"18/26 17/4 21/6 3/16 19/14 22/7 8/1 12/25 5/9 10/15"});
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{"18/26 17/4"});
bgneal@3:       TS_ASSERT_THROWS_NOTHING(plugboard{" 18/26 "});
bgneal@3:    }
bgneal@3: 
bgneal@3:    void test_default_wiring()
bgneal@3:    {
bgneal@3:       plugboard p;
bgneal@3:       for (int i = 0; i < 26; ++i)
bgneal@3:       {
bgneal@3:          TS_ASSERT_EQUALS(i, p.signal(i));
bgneal@3:       }
bgneal@3:    }
bgneal@3: 
bgneal@3:    void test_wiring()
bgneal@3:    {
bgneal@3:       std::vector<std::string> settings{"AB CD EF GH IJ KL MN OP QR ST",
bgneal@3:                   "1/2 3/4 5/6 7/8 9/10 11/12 13/14 15/16 17/18 19/20"};
bgneal@3: 
bgneal@3:       for (const auto& setting : settings)
bgneal@3:       {
bgneal@3:          plugboard p{setting};
bgneal@3:          for (int n = 0; n < 26; ++n)
bgneal@3:          {
bgneal@3:             if (n < 20)
bgneal@3:             {
bgneal@3:                if (n % 2 == 0)
bgneal@3:                {
bgneal@3:                   TS_ASSERT_EQUALS(p.signal(n), n + 1);
bgneal@3:                }
bgneal@3:                else
bgneal@3:                {
bgneal@3:                   TS_ASSERT_EQUALS(p.signal(n), n - 1);
bgneal@3:                }
bgneal@3:             }
bgneal@3:             else
bgneal@3:             {
bgneal@3:                TS_ASSERT_EQUALS(p.signal(n), n);
bgneal@3:             }
bgneal@3:          }
bgneal@3:       }
bgneal@3:    }
bgneal@3: 
bgneal@3:    void test_wiring2()
bgneal@3:    {
bgneal@3:       std::string stecker{"AV BS CG DL FU HZ IN KM OW RX"};
bgneal@3:       plugboard p{stecker};
bgneal@3:       plugboard::pair_vector pairs{p.get_pairs()};
bgneal@3: 
bgneal@3:       plugboard::pair_vector expected_pairs{
bgneal@3:          {0, 21}, {1, 18}, {2, 6}, {3, 11}, {5, 20},
bgneal@3:          {7, 25}, {8, 13}, {10, 12}, {14, 22}, {17, 23}
bgneal@3:       };
bgneal@3: 
bgneal@3:       TS_ASSERT_EQUALS(expected_pairs, pairs);
bgneal@3: 
bgneal@3:       std::map<int, int> wiring;
bgneal@3:       for (const auto& p : pairs)
bgneal@3:       {
bgneal@3:          wiring.insert(p);
bgneal@3:          wiring.insert(std::make_pair(p.second, p.first));
bgneal@3:       }
bgneal@3: 
bgneal@3:       for (int n = 0; n < 26; ++n)
bgneal@3:       {
bgneal@3:          auto iter = wiring.find(n);
bgneal@3:          if (iter != wiring.end())
bgneal@3:          {
bgneal@3:             TS_ASSERT_EQUALS(p.signal(n), iter->second);
bgneal@3:          }
bgneal@3:          else
bgneal@3:          {
bgneal@3:             TS_ASSERT_EQUALS(p.signal(n), n);
bgneal@3:          }
bgneal@3:       }
bgneal@3:    }
bgneal@3: 
bgneal@3:    void test_army_str()
bgneal@3:    {
bgneal@3:       std::string stecker{"AB CD EF GH IJ KL MN OP QR ST"};
bgneal@3:       plugboard p{stecker};
bgneal@3:       TS_ASSERT_EQUALS(stecker, p.army_str());
bgneal@3:    }
bgneal@3: 
bgneal@3:    void test_navy_str()
bgneal@3:    {
bgneal@3:       std::string stecker{"1/2 3/4 5/6 7/8 9/10 11/12 13/14 15/16 17/18 19/20"};
bgneal@3:       plugboard p{stecker};
bgneal@3:       TS_ASSERT_EQUALS(stecker, p.navy_str());
bgneal@3:    }
bgneal@3: };