File: performance.py

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"""
Performance measurement utilities.
"""
import pytest
import time


class PerformanceTimer:
    def __init__(self, max_time):
        self.max_time = max_time
        self.start_time = None

    def __enter__(self):
        self.start_time = time.time()

    def __exit__(self, exc_type, exc_val, exc_tb):
        assert time.time() - self.start_time < self.max_time


class PerformanceFixture:
    timer = PerformanceTimer


@pytest.fixture
def performance():
    return PerformanceFixture()