95904611

.github/workflows/pytest.yml

@@ -0,0 +1,24 @@
+name: Python package
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pytest
+      - name: Test with pytest
+        run: |
+          pytest tests/

streak.py

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+from typing import List
+def longest_positive_streak(nums: List[int]) -> int:
+    """
+    Calculates the length of the longest run of consecutive positive integers in a list.
+
+    Args:
+        nums: A list of integers.
+
+    Returns:
+        The length of the longest run of consecutive values strictly greater than 0.
+        Returns 0 for an empty list.
+    """
+    if not nums:
+        return 0
+
+    max_streak = 0
+    current_streak = 0
+    for num in nums:
+        if num > 0:
+            current_streak += 1
+        else:
+            max_streak = max(max_streak, current_streak)
+            current_streak = 0
+
+    max_streak = max(max_streak, current_streak)
+    return max_streak

tests/test_streak.py

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+import sys
+import os
+import pytest
+
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+
+from streak import longest_positive_streak
+
+def test_empty_list():
+    assert longest_positive_streak([]) == 0
+
+def test_all_positive():
+    assert longest_positive_streak([1, 2, 3, 4, 5]) == 5
+
+def test_all_non_positive():
+    assert longest_positive_streak([-1, -2, 0, -5]) == 0
+
+def test_mixed_numbers():
+    assert longest_positive_streak([1, 2, -1, 4, 5, 6]) == 3
+
+def test_streak_at_beginning():
+    assert longest_positive_streak([1, 2, 3, -1, 0, 5]) == 3
+
+def test_streak_at_end():
+    assert longest_positive_streak([-1, 0, 5, 1, 2, 3]) == 4
+
+def test_multiple_streaks():
+    assert longest_positive_streak([1, 2, 0, 1, 2, 3, 0, 1]) == 3
+
+def test_single_positive():
+    assert longest_positive_streak([-1, -2, 5, -3, -4]) == 1
+
+def test_zeros_in_list():
+    assert longest_positive_streak([1, 0, 2, 3, 0, 4, 5, 6, 7]) == 4
+
+def test_no_positive_numbers():
+    assert longest_positive_streak([0, -1, -2, -3]) == 0