TestFile: test_circular_buffer.py

Author: frHimanshu

pydatastructs/linear_data_structures/tests/test_circular_buffer.py

@@ -0,0 +1,43 @@
+import unittest
+from pydatastructs.linear_data_structures.circular_buffer import CircularBuffer
+
+class TestCircularBuffer(unittest.TestCase):
+
+    def setUp(self):
+        self.buffer = CircularBuffer(3, dtype=int)  # Added dtype argument
+
+    def test_enqueue_dequeue(self):
+        self.buffer.enqueue(1)
+        self.buffer.enqueue(2)
+        self.assertEqual(self.buffer.dequeue(), 1)
+        self.assertEqual(self.buffer.dequeue(), 2)
+
+    def test_is_empty(self):
+        self.assertTrue(self.buffer.is_empty())
+        self.buffer.enqueue(1)
+        self.assertFalse(self.buffer.is_empty())
+
+    def test_is_full(self):
+        self.buffer.enqueue(1)
+        self.buffer.enqueue(2)
+        self.buffer.enqueue(3)
+        self.assertTrue(self.buffer.is_full())
+
+    def test_peek(self):
+        self.buffer.enqueue(1)
+        self.buffer.enqueue(2)
+        self.assertEqual(self.buffer.peek(), 1)
+
+    def test_enqueue_overflow(self):
+        self.buffer.enqueue(1)
+        self.buffer.enqueue(2)
+        self.buffer.enqueue(3)
+        with self.assertRaises(OverflowError):
+            self.buffer.enqueue(4)
+
+    def test_dequeue_underflow(self):
+        with self.assertRaises(ValueError):
+            self.buffer.dequeue()
+
+if __name__ == '__main__':
+    unittest.main()