test: merge test_problem_finder.py files

Author: wislertt

tests/cli/test_problem_finder.py

@@ -1,6 +1,7 @@
 import pytest
 
 from leetcode_py.cli.utils.problem_finder import (
+    _build_problem_tags_cache,
     find_problem_by_number,
     find_problems_by_tag,
     get_all_problems,
@@ -104,3 +105,27 @@ def test_problem_finder_consistency():
     grind_problems = find_problems_by_tag("grind-75")
     for problem in grind_problems:
         assert problem in all_problems
+
+
+def test_build_problem_tags_cache_with_real_tags():
+    result = _build_problem_tags_cache()
+
+    # Test that grind tag includes both grind-75 problems and daily_temperatures
+    assert "daily_temperatures" in result
+    assert "grind" in result["daily_temperatures"]
+
+    # Test that grind-75 problems also get grind tag
+    assert "two_sum" in result
+    assert "grind-75" in result["two_sum"]
+    assert "grind" in result["two_sum"]
+
+
+def test_get_tags_for_problem_extended():
+    # Test daily_temperatures has grind tag
+    tags = get_tags_for_problem("daily_temperatures")
+    assert "grind" in tags
+
+    # Test grind-75 problem has both tags
+    tags = get_tags_for_problem("two_sum")
+    assert "grind-75" in tags
+    assert "grind" in tags