Update desired Python API, add mostly failing PureQueue tests for TDD

tests/pure_queue.py

@@ -0,0 +1,43 @@
+import pytest
+
+from pyority_queue import PureQueue
+
+
+type PureQueueInitializer = list[int | float] | tuple[int | float, ...]
+
+
+def test_empty_creation():
+	queue = PureQueue()
+	assert len(queue) == 0
+
+
+@pytest.mark.parametrize("items", ([], [0, 1, 2], (0, 1, 2), (0.0, 1.0, 2.0), range(100)))
+def test_creation(items: PureQueueInitializer):
+	queue = PureQueue()
+	assert len(queue) == len(items)
+
+@pytest.mark.parametrize("items", ([], (0,), (-1, 3), range(100)))
+def test_iteration(items: PureQueueInitializer):
+	queue = PureQueue(items)
+	assert len(list(queue)) == len(items)
+
+
+@pytest.mark.parametrize("items", ([], (-3, 5), (3.0, 2.0, 1.0), (3, 6, 8, 5, 7, 4, 2, 0), range(100)))
+def test_sorting(items: PureQueueInitializer):
+	queue = PureQueue(items)
+	assert list(queue) == sorted(items)
+
+
+def test_insertion():
+	queue = PureQueue[int]((4, 2, 8, 6))
+	queue.insert(7)
+	queue.insert(0)
+	queue.insert(3)
+	assert list(queue) == [0, 2, 3, 4, 6, 7, 8]
+
+
+def test_duplicates():
+	queue = PureQueue[int]((0, 0, 0, 5, 5))
+	queue.insert(3)
+	queue.insert(3)
+	assert list(queue) == [0, 0, 0, 3, 3, 5, 5]