clanker: test-veet (run)

problems/medium/group-anagrams/solution.py

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+"""
+Group Anagrams
+
+You're building a word game assistant that groups words which are
+anagrams of each other. Two words are anagrams if they contain
+the same letters in any order.
+
+Given a list of strings, group the anagrams together. Each group
+should be a sorted list of words, and the groups themselves should
+be sorted by their first element.
+
+Example 1:
+    Input: words = ["eat", "tea", "tan", "ate", "nat", "bat"]
+    Output: [["ate", "eat", "tea"], ["bat"], ["nat", "tan"]]
+    Explanation: "eat", "tea", and "ate" are all anagrams of each other
+
+Example 2:
+    Input: words = ["hello", "world"]
+    Output: [["hello"], ["world"]]
+    Explanation: No words are anagrams of each other
+
+Example 3:
+    Input: words = ["", ""]
+    Output: [["", ""]]
+    Explanation: Empty strings are anagrams of each other
+
+Constraints:
+    - 0 <= len(words) <= 10^4
+    - 0 <= len(words[i]) <= 100
+    - Words consist of lowercase English letters
+    - Each group is sorted alphabetically
+    - Groups are sorted by their first element
+"""
+
+
+def group_anagrams(words: list[str]) -> list[list[str]]:
+    """Return a list of anagram groups, each sorted, groups sorted by first element."""
+    pass  # Your implementation here

problems/medium/group-anagrams/tests.py

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+"""Tests for group-anagrams."""
+import pytest
+from solution import group_anagrams
+
+
+class TestBasicCases:
+    """Test basic functionality with typical inputs."""
+
+    def test_example_one(self):
+        """Test first example from problem description."""
+        assert group_anagrams(["eat", "tea", "tan", "ate", "nat", "bat"]) == [
+            ["ate", "eat", "tea"], ["bat"], ["nat", "tan"]
+        ]
+
+    def test_example_two(self):
+        """Test second example with no anagrams."""
+        assert group_anagrams(["hello", "world"]) == [["hello"], ["world"]]
+
+    def test_example_three(self):
+        """Test third example with empty strings."""
+        assert group_anagrams(["", ""]) == [["", ""]]
+
+    def test_single_word(self):
+        """Test with a single word."""
+        assert group_anagrams(["abc"]) == [["abc"]]
+
+
+class TestEdgeCases:
+    """Test edge cases and boundary conditions."""
+
+    def test_empty_list(self):
+        """Test with no words."""
+        assert group_anagrams([]) == []
+
+    def test_all_same_word(self):
+        """Test with identical words."""
+        assert group_anagrams(["abc", "abc", "abc"]) == [["abc", "abc", "abc"]]
+
+    def test_single_character_words(self):
+        """Test with single character strings."""
+        assert group_anagrams(["a", "b", "a"]) == [["a", "a"], ["b"]]
+
+    def test_different_lengths_not_grouped(self):
+        """Test that words of different lengths are never grouped."""
+        assert group_anagrams(["ab", "abc", "ba"]) == [["ab", "ba"], ["abc"]]