⚡️ Speed up method DefaultIdentityProvider.verify_eligibility by 16%

[codeflash-ai]

📄 16% (0.16x) speedup for DefaultIdentityProvider.verify_eligibility in pr_agent/identity_providers/default_identity_provider.py

⏱️ Runtime : 311 microseconds → 267 microseconds (best of 377 runs)

📝 Explanation and details

The optimization caches the constant Eligibility.ELIGIBLE in a module-level variable _ELIGIBLE to avoid repeated attribute lookups on every method call.

Key change: Instead of accessing Eligibility.ELIGIBLE each time (which requires a dot notation lookup), the optimized version pre-resolves this to a module-level constant that can be returned directly.

Why this is faster: In Python, attribute access (Eligibility.ELIGIBLE) involves namespace lookups and dictionary operations, while returning a pre-cached local variable is a simple memory reference. The line profiler shows this reduces the per-hit time from 315.1ns to 282.1ns (10.5% improvement per call).

Best performance gains: The optimization shows the most benefit in scenarios with:

• High-frequency calls (large scale tests show 15-18% speedup)
• Complex input types that don't affect the return logic (20-33% speedup with mixed types, long strings)
• Edge cases with unusual inputs (up to 25% faster with non-standard parameters)

This is a classic micro-optimization that eliminates redundant work - since DefaultIdentityProvider.verify_eligibility always returns the same constant value regardless of input, pre-computing that value once at module load time removes the repeated attribute lookup overhead.

✅ Correctness verification report:

Test	Status
⚙️ Existing Unit Tests	🔘 None Found
🌀 Generated Regression Tests	✅ 2690 Passed
⏪ Replay Tests	🔘 None Found
🔎 Concolic Coverage Tests	🔘 None Found
📊 Tests Coverage	100.0%

🌀 Generated Regression Tests and Runtime

from enum import Enum

# imports
import pytest
from pr_agent.identity_providers.default_identity_provider import \
    DefaultIdentityProvider

# function to test
# Simulating the actual Eligibility and IdentityProvider classes for testability

class Eligibility(Enum):
    ELIGIBLE = "eligible"
    INELIGIBLE = "ineligible"
    UNKNOWN = "unknown"

class IdentityProvider:
    def verify_eligibility(self, git_provider, git_provider_id, pr_url):
        raise NotImplementedError
from pr_agent.identity_providers.default_identity_provider import \
    DefaultIdentityProvider

# unit tests

# -------------------------------
# Basic Test Cases
# -------------------------------

def test_basic_valid_github():
    """Test with typical valid GitHub PR info."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility("github", "octocat", "https://github.com/octocat/Hello-World/pull/1"); result = codeflash_output # 285ns -> 277ns (2.89% faster)

def test_basic_valid_gitlab():
    """Test with typical valid GitLab PR info."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility("gitlab", "john_doe", "https://gitlab.com/john_doe/project/-/merge_requests/42"); result = codeflash_output # 278ns -> 257ns (8.17% faster)

def test_basic_valid_bitbucket():
    """Test with typical valid Bitbucket PR info."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility("bitbucket", "jane_smith", "https://bitbucket.org/jane_smith/repo/pull-requests/5"); result = codeflash_output # 274ns -> 267ns (2.62% faster)

# -------------------------------
# Edge Test Cases
# -------------------------------

@pytest.mark.parametrize("git_provider", [
    "",  # empty string
    None,  # NoneType
    "GITHUB",  # case sensitivity
    "gh",  # abbreviation
    "verylongprovidername" * 10,  # excessively long string
])
def test_edge_git_provider_variants(git_provider):
    """Test function with various unusual git_provider values."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility(git_provider, "user", "https://example.com/pr/1"); result = codeflash_output # 1.52μs -> 1.42μs (7.03% faster)

@pytest.mark.parametrize("git_provider_id", [
    "",  # empty string
    None,  # NoneType
    "a" * 256,  # very long user ID
    "@invalid!user#",  # special characters
    "normal_user",
])
def test_edge_git_provider_id_variants(git_provider_id):
    """Test function with various unusual git_provider_id values."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility("github", git_provider_id, "https://example.com/pr/2"); result = codeflash_output # 1.49μs -> 1.34μs (10.9% faster)

@pytest.mark.parametrize("pr_url", [
    "",  # empty string
    None,  # NoneType
    "not_a_url",  # invalid format
    "ftp://example.com/pr/3",  # unsupported protocol
    "https://github.com/org/repo/pull/9999999999999999999999999",  # extremely large PR number
    "https://" + "a"*900 + ".com/pr/1",  # very long URL
])
def test_edge_pr_url_variants(pr_url):
    """Test function with various unusual pr_url values."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility("github", "octocat", pr_url); result = codeflash_output # 1.95μs -> 1.67μs (16.8% faster)

def test_edge_all_none():
    """Test with all parameters as None."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility(None, None, None); result = codeflash_output # 323ns -> 294ns (9.86% faster)

def test_edge_all_empty():
    """Test with all parameters as empty strings."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility("", "", ""); result = codeflash_output # 318ns -> 272ns (16.9% faster)

def test_edge_mixed_types():
    """Test with mixed parameter types (int, float, bool, etc.)."""
    provider = DefaultIdentityProvider()
    codeflash_output = provider.verify_eligibility(123, 45.6, True); result = codeflash_output # 357ns -> 285ns (25.3% faster)

# -------------------------------
# Large Scale Test Cases
# -------------------------------

def test_large_scale_many_calls():
    """Test performance and consistency with a large number of calls."""
    provider = DefaultIdentityProvider()
    for i in range(1000):  # Keeping under 1000 as per instruction
        git_provider = f"provider_{i%5}"
        git_provider_id = f"user_{i}"
        pr_url = f"https://example.com/repo/pull/{i}"
        codeflash_output = provider.verify_eligibility(git_provider, git_provider_id, pr_url); result = codeflash_output # 112μs -> 96.4μs (16.6% faster)

def test_large_scale_long_strings():
    """Test with very large string inputs for each parameter."""
    provider = DefaultIdentityProvider()
    long_str = "x" * 999  # Just under 1000 chars
    codeflash_output = provider.verify_eligibility(long_str, long_str, long_str); result = codeflash_output # 363ns -> 296ns (22.6% faster)

def test_large_scale_varied_inputs():
    """Test with a variety of different inputs in a batch to ensure no state leaks or caching issues."""
    provider = DefaultIdentityProvider()
    test_cases = [
        ("github", "octocat", "https://github.com/octocat/Hello-World/pull/1"),
        ("gitlab", "user", "https://gitlab.com/user/repo/-/merge_requests/2"),
        ("bitbucket", "user", "https://bitbucket.org/user/repo/pull-requests/3"),
        ("", "", ""),
        (None, None, None),
        (123, 456, 789),
        ("GITHUB", "OCTOCAT", "HTTPS://GITHUB.COM/OCTOCAT/HELLO-WORLD/PULL/1"),
        ("gh", "octo", "not_a_url"),
        ("verylongprovidername" * 10, "a" * 256, "https://" + "a"*900 + ".com/pr/1"),
    ]
    for git_provider, git_provider_id, pr_url in test_cases:
        codeflash_output = provider.verify_eligibility(git_provider, git_provider_id, pr_url); result = codeflash_output # 1.34μs -> 1.22μs (9.72% faster)
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.
#------------------------------------------------
from enum import Enum

# imports
import pytest
from pr_agent.identity_providers.default_identity_provider import \
    DefaultIdentityProvider


# function to test
# Simulate the relevant classes and method as per the provided code.
class Eligibility(Enum):
    ELIGIBLE = "eligible"
    INELIGIBLE = "ineligible"
    UNKNOWN = "unknown"

class IdentityProvider:
    def verify_eligibility(self, git_provider, git_provider_id, pr_url):
        raise NotImplementedError
from pr_agent.identity_providers.default_identity_provider import \
    DefaultIdentityProvider

# unit tests

@pytest.fixture
def provider():
    # Fixture to instantiate the provider for reuse.
    return DefaultIdentityProvider()

# 1. Basic Test Cases

def test_basic_valid_github(provider):
    # Test with typical GitHub PR URL and ID
    codeflash_output = provider.verify_eligibility("github", "octocat", "https://github.com/octocat/Hello-World/pull/42"); result = codeflash_output # 271ns -> 260ns (4.23% faster)

def test_basic_valid_gitlab(provider):
    # Test with typical GitLab PR URL and ID
    codeflash_output = provider.verify_eligibility("gitlab", "john_doe", "https://gitlab.com/john_doe/project/merge_requests/1"); result = codeflash_output # 258ns -> 225ns (14.7% faster)

def test_basic_valid_bitbucket(provider):
    # Test with typical Bitbucket PR URL and ID
    codeflash_output = provider.verify_eligibility("bitbucket", "jane_doe", "https://bitbucket.org/jane_doe/repo/pull-requests/10"); result = codeflash_output # 269ns -> 252ns (6.75% faster)

# 2. Edge Test Cases

def test_empty_strings(provider):
    # Test with all empty strings
    codeflash_output = provider.verify_eligibility("", "", ""); result = codeflash_output # 298ns -> 294ns (1.36% faster)

def test_none_values(provider):
    # Test with None values for all arguments
    codeflash_output = provider.verify_eligibility(None, None, None); result = codeflash_output # 298ns -> 278ns (7.19% faster)

def test_mixed_none_and_empty(provider):
    # Test with a mix of None and empty string
    codeflash_output = provider.verify_eligibility(None, "", "https://example.com"); result = codeflash_output # 311ns -> 290ns (7.24% faster)

def test_unexpected_git_provider(provider):
    # Test with an unexpected git provider string
    codeflash_output = provider.verify_eligibility("unknown_provider", "user", "https://unknown.com/pr/1"); result = codeflash_output # 304ns -> 265ns (14.7% faster)

def test_integer_git_provider_id(provider):
    # Test with an integer as git_provider_id
    codeflash_output = provider.verify_eligibility("github", 12345, "https://github.com/octocat/Hello-World/pull/42"); result = codeflash_output # 293ns -> 259ns (13.1% faster)

def test_special_characters_in_inputs(provider):
    # Test with special characters in all fields
    codeflash_output = provider.verify_eligibility("git$hub", "user!@#", "https://github.com/octocat/Hello-World/pull/42?foo=bar&baz=qux"); result = codeflash_output # 278ns -> 260ns (6.92% faster)

def test_long_strings(provider):
    # Test with very long strings for all arguments
    long_str = "a" * 1000
    codeflash_output = provider.verify_eligibility(long_str, long_str, long_str); result = codeflash_output # 345ns -> 271ns (27.3% faster)

def test_non_string_url(provider):
    # Test with a non-string PR URL (e.g., integer)
    codeflash_output = provider.verify_eligibility("github", "octocat", 123456); result = codeflash_output # 309ns -> 285ns (8.42% faster)

def test_boolean_inputs(provider):
    # Test with boolean values
    codeflash_output = provider.verify_eligibility(True, False, True); result = codeflash_output # 331ns -> 275ns (20.4% faster)

def test_dict_as_input(provider):
    # Test with dicts as inputs
    codeflash_output = provider.verify_eligibility({"provider": "github"}, {"id": "octocat"}, {"url": "https://github.com"}); result = codeflash_output # 343ns -> 301ns (14.0% faster)

def test_list_as_input(provider):
    # Test with lists as inputs
    codeflash_output = provider.verify_eligibility(["github"], ["octocat"], ["https://github.com"]); result = codeflash_output # 294ns -> 234ns (25.6% faster)

# 3. Large Scale Test Cases

def test_large_number_of_calls(provider):
    # Test the function called multiple times with different data
    for i in range(1000):
        codeflash_output = provider.verify_eligibility("github", f"user{i}", f"https://github.com/user{i}/repo/pull/{i}"); result = codeflash_output # 114μs -> 99.1μs (15.7% faster)

def test_large_inputs(provider):
    # Test with large input strings for each argument
    huge_str = "x" * 999
    codeflash_output = provider.verify_eligibility(huge_str, huge_str, huge_str); result = codeflash_output # 356ns -> 267ns (33.3% faster)

def test_varied_large_scale_inputs(provider):
    # Test with a variety of large and unusual inputs in a loop
    for i in range(500):
        provider_id = f"user_{i}" * 10
        pr_url = f"https://example.com/pr/{i}" + ("a" * (i % 100))
        git_provider = "github" if i % 2 == 0 else "gitlab"
        codeflash_output = provider.verify_eligibility(git_provider, provider_id, pr_url); result = codeflash_output # 58.3μs -> 49.1μs (18.8% faster)

def test_large_mixed_types(provider):
    # Test with large data structures and mixed types
    for i in range(100):
        git_provider = ["github", "gitlab", "bitbucket", None, 123][i % 5]
        git_provider_id = {"id": i} if i % 2 == 0 else f"user_{i}"
        pr_url = ["https://a.com", None, 42, ["nested"], {"url": "x"}][i % 5]
        codeflash_output = provider.verify_eligibility(git_provider, git_provider_id, pr_url); result = codeflash_output # 12.3μs -> 10.6μs (15.8% faster)
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

To edit these changes git checkout codeflash/optimize-DefaultIdentityProvider.verify_eligibility-mgzn1nxc and push.