"""
Unit tests for knowledge management router.

Tests knowledge base endpoints including:
- Add knowledge entry
- List knowledge entries
- Update knowledge entry
- Delete knowledge entry
- Search knowledge base
- Categorize knowledge
"""

import pytest


@pytest.mark.unit
class TestAddKnowledgeEntry:
    """Tests for adding knowledge entries"""

    def test_add_entry_success(self):
        """Test successfully adding knowledge entry"""

        # Assert returns 201 with entry

    def test_add_entry_missing_content(self):
        """Test adding entry fails without content"""
        # Assert returns 422

    def test_add_entry_invalid_category(self):
        """Test adding entry with invalid category"""
        # Assert returns 422


@pytest.mark.unit
class TestListKnowledgeEntries:
    """Tests for listing knowledge entries"""

    def test_list_project_knowledge(self):
        """Test listing knowledge for project"""
        # Assert returns list of knowledge entries

    def test_list_with_filtering(self):
        """Test filtering knowledge by category"""
        # Assert can filter by category, tags, etc.

    def test_list_with_search(self):
        """Test searching knowledge"""
        # Assert search returns relevant entries

    def test_list_pagination(self):
        """Test knowledge list pagination"""
        # Assert pagination works


@pytest.mark.unit
class TestUpdateKnowledgeEntry:
    """Tests for updating knowledge entries"""

    def test_update_entry_success(self):
        """Test successfully updating entry"""

        # Assert returns 200

    def test_update_nonexistent_entry(self):
        """Test updating non-existent entry"""
        # Assert returns 404


@pytest.mark.unit
class TestDeleteKnowledgeEntry:
    """Tests for deleting knowledge entries"""

    def test_delete_entry_success(self):
        """Test successfully deleting entry"""
        # Assert returns 200 or 204

    def test_delete_nonexistent_entry(self):
        """Test deleting non-existent entry"""
        # Assert returns 404


@pytest.mark.unit
class TestKnowledgeSearch:
    """Tests for searching knowledge base"""

    def test_search_by_content(self):
        """Test searching by content"""
        # Assert returns matching entries

    def test_search_by_tags(self):
        """Test searching by tags"""
        # Assert returns entries with tags

    def test_search_empty_result(self):
        """Test search with no results"""
        # Assert returns empty list

    def test_search_fuzzy_matching(self):
        """Test fuzzy search matching"""
        pass


@pytest.mark.unit
class TestKnowledgeCategorization:
    """Tests for knowledge categorization"""

    def test_categorize_entry(self):
        """Test categorizing knowledge entry"""
        # Assert entry categorized correctly

    def test_auto_categorization(self):
        """Test automatic categorization"""
        # If AI categorization implemented
        pass


@pytest.mark.unit
class TestKnowledgeRelated:
    """Tests for related knowledge"""

    def test_find_related_entries(self):
        """Test finding related knowledge entries"""
        # Assert returns related entries

    def test_knowledge_linking(self):
        """Test linking related knowledge entries"""
        pass
