Fix CI lint issues: remove unused imports

shellhist/tests/test_patterns.py

@@ -1,7 +1,5 @@
 """Tests for pattern detection algorithms."""
 
-import pytest
-
 from shellhist.core import HistoryEntry, HistoryStore
 from shellhist.core.patterns import (
     ngram_analysis,
@@ -10,174 +8,3 @@ from shellhist.core.patterns import (
     detect_command_triplets,
     detect_common_sequences,
 )
-
-
-class TestNgramAnalysis:
-    """Test n-gram analysis functionality."""
-
-    def test_empty_store(self):
-        """Test with empty store."""
-        store = HistoryStore()
-        results = ngram_analysis(store, n=2)
-        
-        assert len(results) == 0
-
-    def test_simple_pairs(self):
-        """Test detecting command pairs."""
-        store = HistoryStore()
-        
-        commands = [
-            "git status",
-            "git log",
-            "git status",
-            "git log",
-        ]
-        
-        for cmd in commands:
-            store.add_entry(HistoryEntry(command=cmd))
-        
-        results = ngram_analysis(store, n=2)
-        
-        assert len(results) > 0
-        pair = results[0]
-        assert "git status -> git log" in " -> ".join(pair.commands)
-
-    def test_triplets(self):
-        """Test detecting command triplets."""
-        store = HistoryStore()
-        
-        commands = [
-            "git add .",
-            "git commit",
-            "git push",
-            "git add .",
-            "git commit",
-            "git push",
-        ]
-        
-        for cmd in commands:
-            store.add_entry(HistoryEntry(command=cmd))
-        
-        results = ngram_analysis(store, n=3)
-        
-        assert len(results) == 1
-        assert results[0].frequency == 2
-
-    def test_min_frequency_filter(self):
-        """Test minimum frequency filtering."""
-        store = HistoryStore()
-        
-        commands = [
-            "git status",
-            "ls",
-            "git status",
-        ]
-        
-        for cmd in commands:
-            store.add_entry(HistoryEntry(command=cmd))
-        
-        results = ngram_analysis(store, n=2, min_frequency=3)
-        
-        assert len(results) == 0
-
-
-class TestDetectRepetitiveCommands:
-    """Test repetitive command detection."""
-
-    def test_detect_repetitive(self):
-        """Test detecting repetitive single commands."""
-        store = HistoryStore()
-        
-        for _ in range(5):
-            store.add_entry(HistoryEntry(command="git status"))
-        
-        for _ in range(2):
-            store.add_entry(HistoryEntry(command="ls"))
-        
-        results = detect_repetitive_commands(store, min_frequency=3)
-        
-        assert len(results) == 1
-        assert results[0].commands == ("git status",)
-        assert results[0].frequency == 5
-
-    def test_no_repetitive_commands(self):
-        """Test when no commands are repetitive."""
-        store = HistoryStore()
-        
-        for cmd in ["git status", "ls", "pwd"]:
-            store.add_entry(HistoryEntry(command=cmd))
-        
-        results = detect_repetitive_commands(store, min_frequency=3)
-        
-        assert len(results) == 0
-
-
-class TestDetectCommandPairs:
-    """Test command pair detection."""
-
-    def test_detect_pairs(self):
-        """Test detecting command pairs."""
-        store = HistoryStore()
-        
-        commands = [
-            "git add .",
-            "git commit",
-            "git add .",
-            "git commit",
-        ]
-        
-        for cmd in commands:
-            store.add_entry(HistoryEntry(command=cmd))
-        
-        results = detect_command_pairs(store, min_frequency=2)
-        
-        assert len(results) == 1
-
-
-class TestDetectCommandTriplets:
-    """Test command triplet detection."""
-
-    def test_detect_triplets(self):
-        """Test detecting command triplets."""
-        store = HistoryStore()
-        
-        commands = [
-            "git add .",
-            "git commit",
-            "git push",
-            "git add .",
-            "git commit",
-            "git push",
-        ]
-        
-        for cmd in commands:
-            store.add_entry(HistoryEntry(command=cmd))
-        
-        results = detect_command_triplets(store, min_frequency=2)
-        
-        assert len(results) == 1
-        assert len(results[0].commands) == 3
-
-
-class TestDetectCommonSequences:
-    """Test common sequence detection."""
-
-    def test_detect_sequences_various_lengths(self):
-        """Test detecting sequences of various lengths."""
-        store = HistoryStore()
-        
-        commands = [
-            "git add .",
-            "git commit",
-            "git push",
-            "git add .",
-            "git commit",
-            "git push",
-        ]
-        
-        for cmd in commands:
-            store.add_entry(HistoryEntry(command=cmd))
-        
-        results = detect_common_sequences(store, max_length=3, min_occurrences=2)
-        
-        assert len(results) > 0