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* Add Dataverse SDK for Python: 5 new instruction files (error handling, authentication, performance, testing, use cases) + 4 prompts and updated READMEs * Delete COLLECTION_STATUS.md * Delete ENHANCEMENT_SUMMARY.md
487 lines
11 KiB
Markdown
487 lines
11 KiB
Markdown
---
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applyTo: '**'
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---
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# Dataverse SDK for Python — Testing & Debugging Strategies
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Based on official Azure Functions and pytest testing patterns.
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## 1. Testing Overview
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### Testing Pyramid for Dataverse SDK
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```
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Integration Tests <- Test with real Dataverse
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/\
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/ \
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/Unit Tests (Mocked)\
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/____________________\
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< Framework Tests
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```
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---
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## 2. Unit Testing with Mocking
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### Setup Test Environment
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```bash
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# Install test dependencies
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pip install pytest pytest-cov unittest-mock
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```
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### Mock DataverseClient
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```python
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# tests/test_operations.py
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import pytest
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from unittest.mock import Mock, patch, MagicMock
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from PowerPlatform.Dataverse.client import DataverseClient
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@pytest.fixture
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def mock_client():
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"""Provide mocked DataverseClient."""
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client = Mock(spec=DataverseClient)
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return client
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def test_create_account(mock_client):
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"""Test account creation with mocked client."""
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# Setup mock response
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mock_client.create.return_value = ["id-123"]
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# Call function
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from my_app import create_account
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result = create_account(mock_client, {"name": "Acme"})
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# Verify
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assert result == "id-123"
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mock_client.create.assert_called_once_with("account", {"name": "Acme"})
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def test_create_account_error(mock_client):
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"""Test error handling in account creation."""
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from PowerPlatform.Dataverse.core.errors import DataverseError
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# Setup mock to raise error
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mock_client.create.side_effect = DataverseError(
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message="Account exists",
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code="validation_error",
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status_code=400
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)
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# Verify error is raised
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from my_app import create_account
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with pytest.raises(DataverseError):
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create_account(mock_client, {"name": "Acme"})
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```
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### Test Data Structures
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```python
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# tests/fixtures.py
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import pytest
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@pytest.fixture
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def sample_account():
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"""Sample account record for testing."""
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return {
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"accountid": "id-123",
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"name": "Acme Inc",
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"telephone1": "555-0100",
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"statecode": 0,
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"createdon": "2025-01-01T00:00:00Z"
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}
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@pytest.fixture
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def sample_accounts(sample_account):
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"""Multiple sample accounts."""
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return [
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sample_account,
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{**sample_account, "accountid": "id-124", "name": "Fabrikam"},
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{**sample_account, "accountid": "id-125", "name": "Contoso"},
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]
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# Usage in tests
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def test_process_accounts(mock_client, sample_accounts):
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mock_client.get.return_value = iter([sample_accounts])
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# Test processing
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```
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---
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## 3. Mocking Common Patterns
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### Mock Get with Pagination
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```python
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def test_pagination(mock_client, sample_accounts):
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"""Test handling paginated results."""
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# Mock returns generator with pages
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mock_client.get.return_value = iter([
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sample_accounts[:2], # Page 1
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sample_accounts[2:] # Page 2
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])
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from my_app import process_all_accounts
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result = process_all_accounts(mock_client)
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assert len(result) == 3 # All pages processed
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```
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### Mock Bulk Operations
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```python
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def test_bulk_create(mock_client):
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"""Test bulk account creation."""
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payloads = [
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{"name": "Account 1"},
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{"name": "Account 2"},
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]
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# Mock returns list of IDs
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mock_client.create.return_value = ["id-1", "id-2"]
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from my_app import create_accounts
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ids = create_accounts(mock_client, payloads)
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assert len(ids) == 2
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mock_client.create.assert_called_once_with("account", payloads)
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```
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### Mock Errors
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```python
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def test_rate_limiting_retry(mock_client):
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"""Test retry logic on rate limiting."""
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from PowerPlatform.Dataverse.core.errors import DataverseError
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# Mock fails then succeeds
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error = DataverseError(
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message="Too many requests",
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code="http_error",
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status_code=429,
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is_transient=True
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)
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mock_client.create.side_effect = [error, ["id-123"]]
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from my_app import create_with_retry
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result = create_with_retry(mock_client, "account", {})
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assert result == "id-123"
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assert mock_client.create.call_count == 2 # Retried
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```
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---
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## 4. Integration Testing
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### Local Development Testing
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```python
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# tests/test_integration.py
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import pytest
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from azure.identity import InteractiveBrowserCredential
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from PowerPlatform.Dataverse.client import DataverseClient
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@pytest.fixture
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def dataverse_client():
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"""Real client for integration testing."""
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client = DataverseClient(
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base_url="https://myorg-dev.crm.dynamics.com",
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credential=InteractiveBrowserCredential()
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)
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return client
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@pytest.mark.integration
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def test_create_and_retrieve_account(dataverse_client):
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"""Test creating and retrieving account (against real Dataverse)."""
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# Create
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account_id = dataverse_client.create("account", {
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"name": "Test Account"
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})[0]
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# Retrieve
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account = dataverse_client.get("account", account_id)
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# Verify
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assert account["name"] == "Test Account"
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# Cleanup
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dataverse_client.delete("account", account_id)
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```
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### Test Isolation
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```python
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# tests/conftest.py
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import pytest
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@pytest.fixture(scope="function")
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def test_account(dataverse_client):
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"""Create test account, cleanup after test."""
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account_id = dataverse_client.create("account", {
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"name": "Test Account"
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})[0]
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yield account_id
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# Cleanup
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try:
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dataverse_client.delete("account", account_id)
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except:
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pass # Already deleted
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# Usage
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def test_update_account(dataverse_client, test_account):
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"""Test updating account."""
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dataverse_client.update("account", test_account, {"telephone1": "555-0100"})
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account = dataverse_client.get("account", test_account)
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assert account["telephone1"] == "555-0100"
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```
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---
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## 5. Pytest Configuration
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### pytest.ini
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```ini
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[pytest]
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# Skip integration tests by default
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testpaths = tests
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python_files = test_*.py
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python_classes = Test*
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python_functions = test_*
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markers =
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integration: marks tests as integration (run with -m integration)
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slow: marks tests as slow
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unit: marks tests as unit tests
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```
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### Run Tests
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```bash
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# Unit tests only
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pytest
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# Unit + integration
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pytest -m "unit or integration"
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# Integration only
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pytest -m integration
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# With coverage
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pytest --cov=my_app tests/
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# Specific test
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pytest tests/test_operations.py::test_create_account
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```
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---
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## 6. Coverage Analysis
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### Generate Coverage Report
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```bash
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# Run tests with coverage
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pytest --cov=my_app --cov-report=html tests/
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# View coverage
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open htmlcov/index.html # macOS
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start htmlcov/index.html # Windows
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```
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### Coverage Configuration (.coveragerc)
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```ini
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[run]
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branch = True
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source = my_app
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[report]
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exclude_lines =
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pragma: no cover
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def __repr__
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raise AssertionError
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raise NotImplementedError
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if __name__ == .__main__.:
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[html]
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directory = htmlcov
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```
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---
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## 7. Debugging with print/logging
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### Enable Debug Logging
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```python
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import logging
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import sys
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# Configure logging
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logging.basicConfig(
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level=logging.DEBUG,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
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handlers=[
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logging.StreamHandler(sys.stdout),
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logging.FileHandler('debug.log')
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]
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)
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# Enable SDK logging
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logging.getLogger('PowerPlatform').setLevel(logging.DEBUG)
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logging.getLogger('azure').setLevel(logging.DEBUG)
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# In test
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def test_with_logging(mock_client):
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logger = logging.getLogger(__name__)
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logger.debug("Starting test")
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result = my_function(mock_client)
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logger.debug(f"Result: {result}")
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```
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### Pytest Capturing Output
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```bash
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# Show print/logging output in tests
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pytest -s tests/
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# Capture and show on failure only
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pytest --tb=short tests/
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```
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---
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## 8. Performance Testing
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### Measure Operation Duration
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```python
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import pytest
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import time
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def test_bulk_create_performance(dataverse_client):
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"""Test bulk create performance."""
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payloads = [{"name": f"Account {i}"} for i in range(1000)]
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start = time.time()
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ids = dataverse_client.create("account", payloads)
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duration = time.time() - start
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assert len(ids) == 1000
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assert duration < 10 # Should complete in under 10 seconds
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print(f"Created 1000 records in {duration:.2f}s ({1000/duration:.0f} records/s)")
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```
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### Pytest Benchmark Plugin
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```bash
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pip install pytest-benchmark
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```
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```python
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def test_query_performance(benchmark, dataverse_client):
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"""Benchmark query performance."""
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def get_accounts():
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return list(dataverse_client.get("account", top=100))
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result = benchmark(get_accounts)
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assert len(result) <= 100
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```
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---
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## 9. Common Testing Patterns
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### Testing Retry Logic
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```python
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def test_retry_on_transient_error(mock_client):
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"""Test retry on transient error."""
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from PowerPlatform.Dataverse.core.errors import DataverseError
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error = DataverseError(
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message="Timeout",
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code="http_error",
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status_code=408,
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is_transient=True
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)
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# Fail then succeed
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mock_client.create.side_effect = [error, ["id-123"]]
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from my_app import create_with_retry
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result = create_with_retry(mock_client, "account", {})
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assert result == "id-123"
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```
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### Testing Filter Building
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```python
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def test_filter_builder():
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"""Test OData filter generation."""
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from my_app import build_account_filter
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# Test cases
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assert build_account_filter(status="active") == "statecode eq 0"
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assert build_account_filter(name="Acme") == "contains(name, 'Acme')"
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assert build_account_filter(status="active", name="Acme") \
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== "statecode eq 0 and contains(name, 'Acme')"
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```
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### Testing Error Handling
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```python
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def test_handles_missing_record(mock_client):
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"""Test handling 404 errors."""
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from PowerPlatform.Dataverse.core.errors import DataverseError
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mock_client.get.side_effect = DataverseError(
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message="Not found",
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code="http_error",
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status_code=404
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)
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from my_app import get_account_safe
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result = get_account_safe(mock_client, "invalid-id")
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assert result is None # Returns None instead of raising
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```
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---
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## 10. Debugging Checklist
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| Issue | Debug Steps |
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| Test fails unexpectedly | Add `-s` flag to see print output |
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| Mock not called | Check method name/parameters match exactly |
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| Real API failing | Check credentials, URL, permissions |
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| Rate limiting in tests | Add delays or use smaller batches |
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| Data not found | Verify record created and not cleaned up |
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| Assertion errors | Print actual vs expected values |
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---
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## 11. See Also
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- [Pytest Documentation](https://docs.pytest.org/)
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- [unittest.mock Reference](https://docs.python.org/3/library/unittest.mock.html)
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- [Azure Functions Testing](https://learn.microsoft.com/en-us/azure/azure-functions/functions-reference-python#unit-testing)
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- [Dataverse SDK Examples](https://github.com/microsoft/PowerPlatform-DataverseClient-Python/tree/main/examples)
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