⚡️ Speed up method JiraDataSource.delete_component by 30%

[codeflash-ai]

📄 30% (0.30x) speedup for JiraDataSource.delete_component in backend/python/app/sources/external/jira/jira.py

⏱️ Runtime : 3.57 milliseconds → 2.75 milliseconds (best of 229 runs)

📝 Explanation and details

The optimized code achieves a 29% runtime speedup and 16.2% throughput improvement through two key optimizations that target the main performance bottlenecks identified in the line profiler:

1. Eliminated Expensive URL Formatting

• Original: Used _safe_format_url(rel_path, _path) which calls template.format_map(_SafeDict(params)) and catches exceptions
• Optimized: Replaced with direct string formatting f"{self.base_url}{rel_path.format(id=id)}"
• Impact: Reduced URL construction time from 4.48ms to 0.57ms (87% reduction), eliminating the overhead of _SafeDict construction and exception handling for this simple single-parameter case

2. Short-Circuit Empty Dictionary Processing

• Original: _as_str_dict always executed the dictionary comprehension regardless of input size
• Optimized: Added if not d: return {} check to avoid comprehension for empty dictionaries
• Impact: Since many calls involve empty _query and _headers dictionaries, this prevents unnecessary iteration and _serialize_value calls

Performance Analysis:
The line profiler shows that _as_str_dict calls dropped from 2307 total hits processing all items to only 812 hits actually executing the comprehension, with 1495 calls short-circuiting on empty dictionaries. This optimization is particularly effective for this API endpoint where query parameters and custom headers are often absent.

Test Case Performance:
The optimizations excel in scenarios with:

• High-volume concurrent requests (200+ operations benefit significantly from reduced per-call overhead)
• Minimal query parameters and headers (most common case for delete operations)
• Throughput-focused workloads where eliminating micro-inefficiencies compounds across many operations

These optimizations target the exact hotspots identified in the profiler while maintaining identical functionality and error handling behavior.

✅ Correctness verification report:

Test	Status
⚙️ Existing Unit Tests	🔘 None Found
🌀 Generated Regression Tests	✅ 796 Passed
⏪ Replay Tests	🔘 None Found
🔎 Concolic Coverage Tests	🔘 None Found
📊 Tests Coverage	92.3%

🌀 Generated Regression Tests and Runtime

import asyncio  # used to run async functions
from typing import Any, Dict, Optional

import pytest  # used for our unit tests
from app.sources.external.jira.jira import JiraDataSource

# --- Minimal stubs for dependencies (to avoid external imports) ---

class HTTPRequest:
    def __init__(self, method, url, headers, path_params, query_params, body):
        self.method = method
        self.url = url
        self.headers = headers
        self.path_params = path_params
        self.query_params = query_params
        self.body = body

class HTTPResponse:
    def __init__(self, value):
        self.value = value

    def __eq__(self, other):
        if not isinstance(other, HTTPResponse):
            return False
        return self.value == other.value

class DummyAsyncClient:
    """A minimal async client to simulate HTTP requests."""
    def __init__(self):
        self.requests = []

    async def request(self, method, url, **kwargs):
        # Simulate a response based on the request for testing
        self.requests.append((method, url, kwargs))
        # Return a dummy HTTPResponse with enough info for assertions
        return DummyHTTPXResponse(method, url, kwargs)

    async def aclose(self):
        pass

class DummyHTTPXResponse:
    """A dummy response object to wrap in HTTPResponse."""
    def __init__(self, method, url, kwargs):
        self.method = method
        self.url = url
        self.kwargs = kwargs
        self.status_code = 204  # Simulate successful delete

class DummyHTTPClient:
    """Simulates the HTTPClient used internally by JiraClient."""
    def __init__(self, base_url="https://example.atlassian.net"):
        self._base_url = base_url
        self._closed = False
        self._client = DummyAsyncClient()
        self.executed_requests = []

    def get_base_url(self):
        return self._base_url

    async def execute(self, request, **kwargs):
        # Record the request for inspection
        self.executed_requests.append(request)
        # Simulate async HTTP call
        resp = await self._client.request(request.method, request.url)
        return HTTPResponse({
            "method": request.method,
            "url": request.url,
            "headers": request.headers,
            "path_params": request.path_params,
            "query_params": request.query_params,
            "body": request.body,
            "status_code": resp.status_code,
        })

class DummyJiraClient:
    """Simulates the JiraClient wrapper."""
    def __init__(self, http_client=None):
        self._client = http_client

    def get_client(self):
        return self._client
from app.sources.external.jira.jira import JiraDataSource

# --- Basic Test Cases ---

@pytest.mark.asyncio
async def test_delete_component_basic_returns_expected_response():
    """Test basic async/await behavior and correct HTTP request construction."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    # Call the function with minimal valid arguments
    response = await ds.delete_component("12345")

@pytest.mark.asyncio
async def test_delete_component_with_move_issues_to_and_headers():
    """Test that moveIssuesTo and custom headers are included in the request."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    headers = {"X-My-Header": "abc"}
    response = await ds.delete_component("c789", moveIssuesTo="c456", headers=headers)

@pytest.mark.asyncio
async def test_delete_component_empty_headers_and_move_issues_to_none():
    """Test that empty headers and moveIssuesTo=None are handled gracefully."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    response = await ds.delete_component("id42", moveIssuesTo=None, headers=None)

# --- Edge Test Cases ---

@pytest.mark.asyncio
async def test_delete_component_raises_if_client_is_none():
    """Test that ValueError is raised if HTTP client is not initialized."""
    jira_client = DummyJiraClient(None)
    with pytest.raises(ValueError, match="HTTP client is not initialized"):
        JiraDataSource(jira_client)

@pytest.mark.asyncio
async def test_delete_component_raises_if_client_missing_get_base_url():
    """Test that ValueError is raised if client lacks get_base_url method."""
    class ClientWithoutBaseUrl:
        pass
    jira_client = DummyJiraClient(ClientWithoutBaseUrl())
    with pytest.raises(ValueError, match="HTTP client does not have get_base_url method"):
        JiraDataSource(jira_client)

@pytest.mark.asyncio
async def test_delete_component_concurrent_requests():
    """Test concurrent execution of delete_component with different ids."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    ids = [f"id{i}" for i in range(10)]
    # Run 10 concurrent deletions
    results = await asyncio.gather(*(ds.delete_component(id_) for id_ in ids))
    for i, resp in enumerate(results):
        pass

@pytest.mark.asyncio
async def test_delete_component_special_characters_in_id():
    """Test that special characters in id are handled safely in the URL."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    special_id = "abc/def?ghi=1&jkl"
    response = await ds.delete_component(special_id)

@pytest.mark.asyncio
async def test_delete_component_headers_are_stringified():
    """Test that non-string header values are stringified in the request."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    headers = {"X-Int": 123, "X-Bool": True}
    response = await ds.delete_component("id123", headers=headers)

# --- Large Scale Test Cases ---

@pytest.mark.asyncio
async def test_delete_component_many_concurrent_requests():
    """Test the function's scalability with many concurrent calls (50)."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    ids = [f"comp{i}" for i in range(50)]
    tasks = [ds.delete_component(id_) for id_ in ids]
    responses = await asyncio.gather(*tasks)
    for idx, resp in enumerate(responses):
        pass

@pytest.mark.asyncio
async def test_delete_component_concurrent_with_varied_params():
    """Test concurrent calls with different moveIssuesTo and headers."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    tasks = [
        ds.delete_component("idA", moveIssuesTo="idB", headers={"A": "1"}),
        ds.delete_component("idC", moveIssuesTo=None, headers={"B": 2}),
        ds.delete_component("idD", moveIssuesTo="idE", headers=None),
    ]
    results = await asyncio.gather(*tasks)

# --- Throughput Test Cases ---

@pytest.mark.asyncio
async def test_delete_component_throughput_small_load():
    """Throughput test: small load (10 requests)."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    ids = [f"small{i}" for i in range(10)]
    responses = await asyncio.gather(*(ds.delete_component(id_) for id_ in ids))

@pytest.mark.asyncio
async def test_delete_component_throughput_medium_load():
    """Throughput test: medium load (100 requests)."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    ids = [f"medium{i}" for i in range(100)]
    responses = await asyncio.gather(*(ds.delete_component(id_) for id_ in ids))

@pytest.mark.asyncio
async def test_delete_component_throughput_varied_headers_and_queries():
    """Throughput test: varied headers and moveIssuesTo parameters."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    tasks = []
    for i in range(20):
        headers = {"H": i}
        move_issues = f"move{i}" if i % 2 == 0 else None
        tasks.append(ds.delete_component(f"tid{i}", moveIssuesTo=move_issues, headers=headers))
    responses = await asyncio.gather(*tasks)
    for i, resp in enumerate(responses):
        if i % 2 == 0:
            pass
        else:
            pass

@pytest.mark.asyncio
async def test_delete_component_throughput_high_volume():
    """Throughput test: high volume (200 requests, but <1000 as per guideline)."""
    http_client = DummyHTTPClient()
    jira_client = DummyJiraClient(http_client)
    ds = JiraDataSource(jira_client)
    ids = [f"bulk{i}" for i in range(200)]
    responses = await asyncio.gather(*(ds.delete_component(id_) for id_ in ids))
    for resp in responses:
        pass
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.
#------------------------------------------------
import asyncio  # used to run async functions
from typing import Any, Dict, Optional

import pytest  # used for our unit tests
from app.sources.external.jira.jira import JiraDataSource

# --- Minimal stub classes for testing purposes ---

class DummyHTTPResponse:
    """A dummy HTTPResponse for testing."""
    def __init__(self, status_code=204, content=None, request=None):
        self.status_code = status_code
        self.content = content
        self.request = request

class DummyHTTPRequest:
    """A dummy HTTPRequest for testing."""
    def __init__(self, **kwargs):
        self.__dict__.update(kwargs)

# --- Dummy client implementations ---

class DummyAsyncClient:
    """A dummy async client simulating execute()."""
    def __init__(self, base_url="https://dummy.atlassian.net", should_fail=False):
        self._base_url = base_url
        self.should_fail = should_fail
        self.requests = []

    def get_base_url(self):
        return self._base_url

    async def execute(self, req):
        self.requests.append(req)
        if self.should_fail:
            raise RuntimeError("Simulated client failure")
        # Simulate a successful HTTP DELETE response
        return DummyHTTPResponse(status_code=204, content=b'', request=req)

class DummyJiraClient:
    """A dummy JiraClient for testing."""
    def __init__(self, client):
        self.client = client

    def get_client(self):
        return self.client
from app.sources.external.jira.jira import JiraDataSource

# --- TESTS BEGIN HERE ---

# 1. BASIC TEST CASES

@pytest.mark.asyncio
async def test_delete_component_basic_success():
    """Test basic successful async delete_component call returns HTTPResponse with expected status."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    resp = await ds.delete_component("12345")

@pytest.mark.asyncio
async def test_delete_component_with_moveIssuesTo_and_headers():
    """Test passing moveIssuesTo and custom headers."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    resp = await ds.delete_component("abcde", moveIssuesTo="67890", headers={"X-Test": "yes"})

@pytest.mark.asyncio
async def test_delete_component_returns_coroutine():
    """Test that delete_component returns a coroutine and must be awaited."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    codeflash_output = ds.delete_component("12345"); coro = codeflash_output
    resp = await coro

# 2. EDGE TEST CASES

@pytest.mark.asyncio
async def test_delete_component_invalid_client_raises():
    """Test that ValueError is raised if client is None."""
    class NullClient:
        def get_client(self):
            return None
    with pytest.raises(ValueError, match="HTTP client is not initialized"):
        JiraDataSource(NullClient())

@pytest.mark.asyncio
async def test_delete_component_client_missing_get_base_url():
    """Test that ValueError is raised if client lacks get_base_url method."""
    class NoBaseURLClient:
        def get_client(self):
            return object()
    with pytest.raises(ValueError, match="HTTP client does not have get_base_url method"):
        JiraDataSource(NoBaseURLClient())

@pytest.mark.asyncio
async def test_delete_component_execute_raises_runtimeerror():
    """Test that exceptions from client.execute are propagated."""
    client = DummyJiraClient(DummyAsyncClient(should_fail=True))
    ds = JiraDataSource(client)
    with pytest.raises(RuntimeError, match="Simulated client failure"):
        await ds.delete_component("fail-id")

@pytest.mark.asyncio
async def test_delete_component_concurrent_calls():
    """Test concurrent execution of delete_component with different ids."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    ids = [f"id-{i}" for i in range(10)]
    # Run 10 concurrent deletions
    results = await asyncio.gather(*(ds.delete_component(i) for i in ids))
    # Each request should have correct id in URL
    for i, r in enumerate(results):
        pass

@pytest.mark.asyncio
async def test_delete_component_headers_and_query_are_str():
    """Test that headers and query params are always stringified."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    resp = await ds.delete_component("1", moveIssuesTo=999, headers={123: True})

# 3. LARGE SCALE TEST CASES

@pytest.mark.asyncio
async def test_delete_component_many_concurrent_calls():
    """Test 100 concurrent delete_component calls for scalability."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    ids = [f"bulk-{i}" for i in range(100)]
    results = await asyncio.gather(*(ds.delete_component(i) for i in ids))
    # Spot check a few requests for correct URL
    for idx in [0, 50, 99]:
        pass

@pytest.mark.asyncio
async def test_delete_component_large_headers_and_query():
    """Test function with large headers and query params."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    headers = {f"X-{i}": f"val-{i}" for i in range(50)}
    resp = await ds.delete_component("large", moveIssuesTo="LARGE", headers=headers)
    # All headers should be present and stringified
    for i in range(50):
        pass

# 4. THROUGHPUT TEST CASES

@pytest.mark.asyncio
async def test_delete_component_throughput_small_load():
    """Throughput: Test function performance with small number of concurrent calls."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    ids = [f"tps-small-{i}" for i in range(5)]
    results = await asyncio.gather(*(ds.delete_component(i) for i in ids))

@pytest.mark.asyncio
async def test_delete_component_throughput_medium_load():
    """Throughput: Test function with medium (50) concurrent calls."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    ids = [f"tps-medium-{i}" for i in range(50)]
    results = await asyncio.gather(*(ds.delete_component(i) for i in ids))

@pytest.mark.asyncio
async def test_delete_component_throughput_high_volume():
    """Throughput: Test function with high (200) concurrent calls."""
    client = DummyJiraClient(DummyAsyncClient())
    ds = JiraDataSource(client)
    ids = [f"tps-high-{i}" for i in range(200)]
    results = await asyncio.gather(*(ds.delete_component(i) for i in ids))
    # Ensure all requests are unique and correct
    seen = set()
    for r in results:
        seen.add(r.request.url)
# 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-JiraDataSource.delete_component-mhp0etgc and push.