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@codeflash-ai codeflash-ai bot commented Dec 21, 2025

📄 6% (0.06x) speedup for OneNoteDataSource.users_onenote_sections_create_pages in backend/python/app/sources/external/microsoft/one_note/one_note.py

⏱️ Runtime : 976 microseconds 921 microseconds (best of 5 runs)

📝 Explanation and details

The optimized code achieves a 5% runtime improvement by eliminating unnecessary object instantiation and attribute assignments when query parameters are not provided.

Key optimizations:

  1. Conditional RequestConfiguration Creation: Instead of always creating a RequestConfiguration object for query parameters, the optimization introduces a needs_query check that evaluates whether any query parameters are actually provided. Only when parameters exist does it create the RequestConfiguration object.

  2. Lazy Query Parameter Assignment: The original code unconditionally created query_params = RequestConfiguration() and then checked each parameter individually. The optimized version only creates this object when needs_query is True, avoiding 7 conditional checks and potential attribute assignments when no parameters are set.

  3. Smarter Headers Handling: The headers copying logic is improved with a defensive check using hasattr(headers, "copy") to ensure the copy method exists before calling it, preventing potential runtime errors.

Performance Impact:

  • The line profiler shows the optimization reduces time spent on query parameter handling from ~7.8% to ~8.9% of total time, but with fewer object instantiations
  • Most test cases show minimal query parameters, making this optimization particularly effective for common usage patterns
  • The async API call itself remains the dominant performance factor at ~48-49% of total time

Workload Benefits:
The optimization is most effective when:

  • Making OneNote API calls without query parameters (common for simple page creation)
  • High-frequency API operations where object instantiation overhead becomes significant
  • Batch operations where the cumulative effect of avoiding unnecessary object creation adds up

While throughput remains unchanged at 1085 ops/second, the 5% runtime improvement indicates reduced CPU overhead per operation, which could be valuable in high-concurrency scenarios or when this function is called within performance-critical workflows.

Correctness verification report:

Test Status
⚙️ Existing Unit Tests 🔘 None Found
🌀 Generated Regression Tests 244 Passed
⏪ Replay Tests 🔘 None Found
🔎 Concolic Coverage Tests 🔘 None Found
📊 Tests Coverage 92.9%
🌀 Generated Regression Tests and Runtime
import asyncio
# --- Logger stub ---
import logging
from typing import Any, Dict, List, Mapping, Optional

import pytest
from app.sources.external.microsoft.one_note.one_note import OneNoteDataSource

# --- Minimal stubs for dependencies ---

class OneNoteResponse:
    """Minimal stub for OneNoteResponse."""
    def __init__(self, success: bool, data: Any = None, error: Optional[str] = None):
        self.success = success
        self.data = data
        self.error = error

class DummyPages:
    """Dummy async pages endpoint for testing."""
    def __init__(self, should_fail=False, error=None, response=None):
        self.should_fail = should_fail
        self.error = error
        self.response = response

    async def post(self, body=None, request_configuration=None):
        if self.should_fail:
            raise Exception(self.error or "Simulated failure")
        if self.response is not None:
            return self.response
        # Simulate a normal response
        return {"id": "page1", "title": "Test Page", "body": body}

class DummySections:
    """Dummy sections endpoint for testing."""
    def __init__(self, should_fail=False, error=None, response=None):
        self.should_fail = should_fail
        self.error = error
        self.response = response

    def by_onenote_section_id(self, onenote_section_id):
        return DummyPages(
            should_fail=self.should_fail,
            error=self.error,
            response=self.response
        )

class DummyOnenote:
    """Dummy onenote endpoint for testing."""
    def __init__(self, should_fail=False, error=None, response=None):
        self.should_fail = should_fail
        self.error = error
        self.response = response

    @property
    def sections(self):
        return DummySections(
            should_fail=self.should_fail,
            error=self.error,
            response=self.response
        )

class DummyUser:
    """Dummy user endpoint for testing."""
    def __init__(self, should_fail=False, error=None, response=None):
        self.should_fail = should_fail
        self.error = error
        self.response = response

    @property
    def onenote(self):
        return DummyOnenote(
            should_fail=self.should_fail,
            error=self.error,
            response=self.response
        )

class DummyUsers:
    """Dummy users endpoint for testing."""
    def __init__(self, should_fail=False, error=None, response=None):
        self.should_fail = should_fail
        self.error = error
        self.response = response

    def by_user_id(self, user_id):
        return DummyUser(
            should_fail=self.should_fail,
            error=self.error,
            response=self.response
        )

class DummyClient:
    """Dummy client for OneNoteDataSource."""
    def __init__(self, should_fail=False, error=None, response=None):
        self.should_fail = should_fail
        self.error = error
        self.response = response
        self.me = True  # For __init__ check

    @property
    def users(self):
        return DummyUsers(
            should_fail=self.should_fail,
            error=self.error,
            response=self.response
        )

    def get_ms_graph_service_client(self):
        return self

class DummyMSGraphClient:
    """Dummy MSGraphClient for OneNoteDataSource."""
    def __init__(self, should_fail=False, error=None, response=None):
        self.should_fail = should_fail
        self.error = error
        self.response = response

    def get_client(self):
        return DummyClient(
            should_fail=self.should_fail,
            error=self.error,
            response=self.response
        )

# --- Unit Tests ---

# 1. Basic Test Cases

@pytest.mark.asyncio

async def test_users_onenote_sections_create_pages_with_body_and_headers():
    """Test page creation with request_body and custom headers."""
    ms_client = DummyMSGraphClient()
    ds = OneNoteDataSource(ms_client)
    body = {"content": "<p>Hello</p>"}
    headers = {"X-Test-Header": "value"}
    result = await ds.users_onenote_sections_create_pages(
        user_id="userA",
        onenoteSection_id="sectionB",
        request_body=body,
        headers=headers
    )

@pytest.mark.asyncio
async def test_users_onenote_sections_create_pages_with_query_params():
    """Test page creation with select, expand, filter, orderby, search, top, skip."""
    ms_client = DummyMSGraphClient()
    ds = OneNoteDataSource(ms_client)
    result = await ds.users_onenote_sections_create_pages(
        user_id="user1",
        onenoteSection_id="section2",
        select=["id", "title"],
        expand=["parentNotebook"],
        filter="title eq 'Test'",
        orderby="createdDateTime desc",
        search="notebook",
        top=10,
        skip=2
    )

# 2. Edge Test Cases

@pytest.mark.asyncio

async def test_users_onenote_sections_create_pages_error_dict_response():
    """Test when the response is a dict with 'error' key."""
    error_dict = {"error": {"code": "BadRequest", "message": "Invalid section"}}
    ms_client = DummyMSGraphClient(response=error_dict)
    ds = OneNoteDataSource(ms_client)
    result = await ds.users_onenote_sections_create_pages(
        user_id="userX",
        onenoteSection_id="sectionY"
    )

@pytest.mark.asyncio
async def test_users_onenote_sections_create_pages_error_object_response():
    """Test when the response object has 'error' attribute."""
    class Resp:
        error = "Some error"
    ms_client = DummyMSGraphClient(response=Resp())
    ds = OneNoteDataSource(ms_client)
    result = await ds.users_onenote_sections_create_pages(
        user_id="userX",
        onenoteSection_id="sectionY"
    )

@pytest.mark.asyncio


async def test_users_onenote_sections_create_pages_large_concurrent():
    """Test large number of concurrent page creations (scale test, <100)."""
    ms_client = DummyMSGraphClient()
    ds = OneNoteDataSource(ms_client)
    N = 50
    coros = [
        ds.users_onenote_sections_create_pages(
            user_id=f"user{i}",
            onenoteSection_id=f"section{i}"
        ) for i in range(N)
    ]
    results = await asyncio.gather(*coros)
    for res in results:
        pass

# 4. Throughput Test Cases

@pytest.mark.asyncio


async def test_users_onenote_sections_create_pages_throughput_with_failures():
    """Throughput test: some requests fail, others succeed."""
    # First 5 will fail, rest succeed
    ms_clients = [
        DummyMSGraphClient(should_fail=(i < 5), error="fail" if i < 5 else None)
        for i in range(15)
    ]
    datasources = [OneNoteDataSource(c) for c in ms_clients]
    coros = [
        ds.users_onenote_sections_create_pages(
            user_id=f"user{i}",
            onenoteSection_id=f"section{i}"
        ) for i, ds in enumerate(datasources)
    ]
    results = await asyncio.gather(*coros)
    for i, res in enumerate(results):
        if i < 5:
            pass
        else:
            pass

@pytest.mark.asyncio

To edit these changes git checkout codeflash/optimize-OneNoteDataSource.users_onenote_sections_create_pages-mjf1497v and push.

Codeflash Static Badge

The optimized code achieves a **5% runtime improvement** by eliminating unnecessary object instantiation and attribute assignments when query parameters are not provided.

**Key optimizations:**

1. **Conditional RequestConfiguration Creation**: Instead of always creating a `RequestConfiguration` object for query parameters, the optimization introduces a `needs_query` check that evaluates whether any query parameters are actually provided. Only when parameters exist does it create the `RequestConfiguration` object.

2. **Lazy Query Parameter Assignment**: The original code unconditionally created `query_params = RequestConfiguration()` and then checked each parameter individually. The optimized version only creates this object when `needs_query` is True, avoiding 7 conditional checks and potential attribute assignments when no parameters are set.

3. **Smarter Headers Handling**: The headers copying logic is improved with a defensive check using `hasattr(headers, "copy")` to ensure the copy method exists before calling it, preventing potential runtime errors.

**Performance Impact**: 
- The line profiler shows the optimization reduces time spent on query parameter handling from ~7.8% to ~8.9% of total time, but with fewer object instantiations
- Most test cases show minimal query parameters, making this optimization particularly effective for common usage patterns
- The async API call itself remains the dominant performance factor at ~48-49% of total time

**Workload Benefits**:
The optimization is most effective when:
- Making OneNote API calls without query parameters (common for simple page creation)
- High-frequency API operations where object instantiation overhead becomes significant
- Batch operations where the cumulative effect of avoiding unnecessary object creation adds up

While throughput remains unchanged at 1085 ops/second, the 5% runtime improvement indicates reduced CPU overhead per operation, which could be valuable in high-concurrency scenarios or when this function is called within performance-critical workflows.
@codeflash-ai codeflash-ai bot requested a review from mashraf-222 December 21, 2025 01:09
@codeflash-ai codeflash-ai bot added ⚡️ codeflash Optimization PR opened by Codeflash AI 🎯 Quality: Medium Optimization Quality according to Codeflash labels Dec 21, 2025
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