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testing: improve test coverage PriorityQueuesTest #6397

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Merged
merged 2 commits into from
Jul 19, 2025
Merged

testing: improve test coverage PriorityQueuesTest #6397

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425de1d
testing: improve test coverage PriorityQueuesTest
alxkm Jul 16, 2025
4c32306
Merge branch 'master' into test/PriorityQueuesTest
DenizAltunkapan Jul 19, 2025
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56 changes: 56 additions & 0 deletions src/test/java/com/thealgorithms/datastructures/queues/PriorityQueuesTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -55,4 +55,60 @@ void testPQExtra() {
Assertions.assertEquals(myQueue.peek(), 2);
Assertions.assertEquals(myQueue.getSize(), 1);
}

@Test
void testInsertUntilFull() {
PriorityQueue pq = new PriorityQueue(3);
pq.insert(1);
pq.insert(4);
pq.insert(2);
Assertions.assertTrue(pq.isFull());
Assertions.assertEquals(4, pq.peek());
}

@Test
void testRemoveFromEmpty() {
PriorityQueue pq = new PriorityQueue(3);
Assertions.assertThrows(RuntimeException.class, pq::remove);
}

@Test
void testInsertDuplicateValues() {
PriorityQueue pq = new PriorityQueue(5);
pq.insert(5);
pq.insert(5);
pq.insert(3);
Assertions.assertEquals(5, pq.peek());
pq.remove();
Assertions.assertEquals(5, pq.peek());
pq.remove();
Assertions.assertEquals(3, pq.peek());
}

@Test
void testSizeAfterInsertAndRemove() {
PriorityQueue pq = new PriorityQueue(4);
Assertions.assertEquals(0, pq.getSize());
pq.insert(2);
Assertions.assertEquals(1, pq.getSize());
pq.insert(10);
Assertions.assertEquals(2, pq.getSize());
pq.remove();
Assertions.assertEquals(1, pq.getSize());
pq.remove();
Assertions.assertEquals(0, pq.getSize());
}

@Test
void testInsertAndRemoveAll() {
PriorityQueue pq = new PriorityQueue(3);
pq.insert(8);
pq.insert(1);
pq.insert(6);
Assertions.assertTrue(pq.isFull());
pq.remove();
pq.remove();
pq.remove();
Assertions.assertTrue(pq.isEmpty());
}
}