@@ -79,4 +79,85 @@ void testLargeMessageSize() {
7979 assertTrue (c .getWrongMess () >= 0 );
8080 assertTrue (c .getCorrectMess () >= 0 );
8181 }
82+ 83+ @ Test
84+ void testSingleBitMessage () {
85+ CRCAlgorithm c = new CRCAlgorithm ("11" , 1 , 0.0 );
86+ c .generateRandomMess ();
87+ c .divideMessageWithP (false );
88+ c .changeMess ();
89+ c .divideMessageWithP (true );
90+ 91+ assertTrue (c .getCorrectMess () >= 0 , "Single bit message should be handled" );
92+ }
93+ 94+ @ Test
95+ void testPolynomialLongerThanMessage () {
96+ CRCAlgorithm c = new CRCAlgorithm ("11010101" , 3 , 0.0 );
97+ c .generateRandomMess ();
98+ c .divideMessageWithP (false );
99+ c .changeMess ();
100+ c .divideMessageWithP (true );
101+ 102+ // Should not crash, counters should be valid
103+ assertTrue (c .getCorrectMess () + c .getWrongMess () >= 0 );
104+ }
105+ 106+ @ Test
107+ void testPolynomialWithOnlyOnes () {
108+ CRCAlgorithm c = new CRCAlgorithm ("1111" , 5 , 0.1 );
109+ c .generateRandomMess ();
110+ c .divideMessageWithP (false );
111+ c .changeMess ();
112+ c .divideMessageWithP (true );
113+ 114+ assertTrue (c .getCorrectMess () + c .getWrongMess () >= 0 );
115+ }
116+ 117+ @ Test
118+ void testMultipleRefactorCalls () {
119+ CRCAlgorithm c = new CRCAlgorithm ("1101" , 5 , 0.2 );
120+ 121+ for (int i = 0 ; i < 5 ; i ++) {
122+ c .refactor ();
123+ c .generateRandomMess ();
124+ c .divideMessageWithP (false );
125+ c .changeMess ();
126+ c .divideMessageWithP (true );
127+ }
128+ 129+ // Counters should accumulate across multiple runs
130+ assertTrue (c .getCorrectMess () + c .getWrongMess () > 0 );
131+ }
132+ 133+ @ Test
134+ void testCounterConsistency () {
135+ CRCAlgorithm c = new CRCAlgorithm ("1101" , 10 , 0.3 );
136+ 137+ for (int i = 0 ; i < 100 ; i ++) {
138+ c .refactor ();
139+ c .generateRandomMess ();
140+ c .divideMessageWithP (false );
141+ c .changeMess ();
142+ c .divideMessageWithP (true );
143+ }
144+ 145+ // Total messages processed should equal correct + wrong
146+ int totalProcessed = c .getCorrectMess () + c .getWrongMess ();
147+ assertEquals (100 , totalProcessed , "Total processed messages should equal iterations" );
148+ 149+ // Wrong messages should equal caught + not caught
150+ assertEquals (c .getWrongMess (), c .getWrongMessCaught () + c .getWrongMessNotCaught (), "Wrong messages should equal sum of caught and not caught" );
151+ }
152+ 153+ @ Test
154+ void testGetterMethodsInitialState () {
155+ CRCAlgorithm c = new CRCAlgorithm ("1101" , 10 , 0.1 );
156+ 157+ // Check initial state
158+ assertEquals (0 , c .getCorrectMess (), "Initial correct messages should be 0" );
159+ assertEquals (0 , c .getWrongMess (), "Initial wrong messages should be 0" );
160+ assertEquals (0 , c .getWrongMessCaught (), "Initial caught wrong messages should be 0" );
161+ assertEquals (0 , c .getWrongMessNotCaught (), "Initial not caught wrong messages should be 0" );
162+ }
82163}
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