write-tests

def test_my_function_filters_by_type():
    """Test that my_function filters by item_type."""
    from sempy_labs import my_function
 
    result = my_function(item_type="Report")
 
    assert all(result["Type"] == "Report")

def test_my_function_raises_on_invalid_workspace():
    """Test that invalid workspace raises ValueError."""
    from sempy_labs import my_function
 
    with pytest.raises(ValueError, match="Invalid workspace"):
        my_function(workspace="NonExistent")
 
 
def test_my_function_raises_on_missing_parameter():
    """Test that missing required parameter raises error."""
    from sempy_labs import my_function
 
    with pytest.raises(TypeError):
        my_function()  # Missing required parameter

def test_error_message_is_descriptive():
    """Test that error message contains helpful information."""
    from sempy_labs import my_function
 
    with pytest.raises(ValueError) as exc_info:
        my_function(invalid_param="bad")
 
    assert "invalid_param" in str(exc_info.value)
    assert "bad" in str(exc_info.value)

import pytest
import pandas as pd
 
 
@pytest.fixture
def sample_dataframe():
    """Create a sample DataFrame for testing."""
    return pd.DataFrame({
        "Id": ["1", "2", "3"],
        "Name": ["Item A", "Item B", "Item C"],
        "Type": ["Report", "Dataset", "Report"],
    })
 
 
def test_filter_function(sample_dataframe):
    """Test filtering function with sample data."""
    from sempy_labs._helper_functions import filter_items
 
    result = filter_items(sample_dataframe, type="Report")
 
    assert len(result) == 2
    assert all(result["Type"] == "Report")

@pytest.fixture(params=["Report", "Dataset", "Lakehouse"])
def item_type(request):
    """Parameterized fixture for item types."""
    return request.param
 
 
def test_with_different_item_types(item_type):
    """Test function with different item types."""
    from sempy_labs import my_function
 
    result = my_function(item_type=item_type)
 
    assert isinstance(result, pd.DataFrame)

from unittest.mock import patch, MagicMock
 
 
def test_function_with_mocked_api():
    """Test with mocked API response."""
    mock_response = MagicMock()
    mock_response.json.return_value = {
        "value": [
            {"id": "123", "name": "Test Item"}
        ]
    }
    mock_response.status_code = 200
 
    with patch('sempy_labs._helper_functions._base_api') as mock_api:
        mock_api.return_value = mock_response
 
        from sempy_labs import list_items
        result = list_items()
 
        assert len(result) == 1
        assert result.iloc[0]["Name"] == "Test Item"

from unittest.mock import patch
 
 
def test_function_with_mocked_fabric():
    """Test with mocked sempy.fabric calls."""
    with patch('sempy.fabric.resolve_workspace_id') as mock_resolve:
        mock_resolve.return_value = "12345678-1234-1234-1234-123456789012"
 
        from sempy_labs._helper_functions import resolve_workspace_id
        result = resolve_workspace_id("My Workspace")
 
        mock_resolve.assert_called_once()

import pytest
 
 
@pytest.mark.parametrize("input_value,expected", [
    ("value1", "result1"),
    ("value2", "result2"),
    ("value3", "result3"),
])
def test_function_with_multiple_inputs(input_value, expected):
    """Test function with multiple input values."""
    from sempy_labs import my_function
 
    result = my_function(input_value)
 
    assert result == expected

@pytest.mark.parametrize("workspace", [
    None,           # Default workspace
    "My Workspace", # By name
    "12345678-1234-1234-1234-123456789012",  # By UUID string
])
def test_accepts_various_workspace_formats(workspace):
    """Test that function accepts various workspace formats."""
    from sempy_labs import my_function
 
    # Should not raise
    result = my_function(workspace=workspace)
    assert result is not None

def test_result_has_required_columns():
    """Test that result DataFrame has required columns."""
    from sempy_labs import list_items
 
    result = list_items()
 
    required_columns = ["Id", "Name", "Type"]
    for col in required_columns:
        assert col in result.columns, f"Missing column: {col}"

def test_result_column_types():
    """Test that result columns have correct types."""
    from sempy_labs import list_items
 
    result = list_items()
 
    assert result["Id"].dtype == "object"  # string
    assert result["Name"].dtype == "object"  # string

def test_handles_empty_result():
    """Test that function handles empty results gracefully."""
    from sempy_labs import list_items
 
    result = list_items(item_type="NonExistentType")
 
    assert isinstance(result, pd.DataFrame)
    assert result.empty
    # Columns should still exist even if empty
    assert "Id" in result.columns

class TestWorkspaceFunctions:
    """Tests for workspace-related functions."""
 
    def test_list_workspaces(self):
        """Test listing workspaces."""
        pass
 
    def test_resolve_workspace_id(self):
        """Test resolving workspace ID."""
        pass
 
    def test_resolve_workspace_name(self):
        """Test resolving workspace name."""
        pass
 
 
class TestHelperFunctions:
    """Tests for helper utility functions."""
 
    def test_is_valid_uuid(self):
        """Test UUID validation."""
        pass
 
    def test_create_dataframe(self):
        """Test DataFrame creation helper."""
        pass