fix: disable pytest-speed when installed and codspeed is enabled

Fix COD-138
Fixes #16

src/pytest_codspeed/plugin.py

@@ -2,8 +2,8 @@
 
 import functools
 import gc
+import importlib.util
 import os
-import pkgutil
 from dataclasses import dataclass, field
 from typing import TYPE_CHECKING
 
@@ -26,7 +26,8 @@
     T = TypeVar("T")
     P = ParamSpec("P")
 
-IS_PYTEST_BENCHMARK_INSTALLED = pkgutil.find_loader("pytest_benchmark") is not None
+IS_PYTEST_BENCHMARK_INSTALLED = importlib.util.find_spec("pytest_benchmark") is not None
+IS_PYTEST_SPEED_INSTALLED = importlib.util.find_spec("pytest_speed") is not None
 BEFORE_PYTEST_8_1_1 = pytest.version_tuple < (8, 1, 1)
 
 
@@ -71,11 +72,17 @@ def pytest_configure(config: pytest.Config):
     mode = CodSpeedMeasurementMode.Instrumentation
     instrument = get_instrument_from_mode(mode)
     disabled_plugins: list[str] = []
-    # Disable pytest-benchmark if codspeed is enabled
-    if is_codspeed_enabled and IS_PYTEST_BENCHMARK_INSTALLED:
-        object.__setattr__(config.option, "benchmark_disable", True)
-        config.pluginmanager.set_blocked("pytest-benchmark")
-        disabled_plugins.append("pytest-benchmark")
+    if is_codspeed_enabled:
+        if IS_PYTEST_BENCHMARK_INSTALLED:
+            # Disable pytest-benchmark
+            object.__setattr__(config.option, "benchmark_disable", True)
+            config.pluginmanager.set_blocked("pytest_benchmark")
+            config.pluginmanager.set_blocked("pytest-benchmark")
+            disabled_plugins.append("pytest-benchmark")
+        if IS_PYTEST_SPEED_INSTALLED:
+            # Disable pytest-speed
+            config.pluginmanager.set_blocked("speed")
+            disabled_plugins.append("pytest-speed")
 
     plugin = CodSpeedPlugin(
         disabled_plugins=tuple(disabled_plugins),
@@ -89,7 +96,9 @@ def pytest_configure(config: pytest.Config):
 @pytest.hookimpl()
 def pytest_plugin_registered(plugin, manager: pytest.PytestPluginManager):
     """Patch the benchmark fixture to use the codspeed one if codspeed is enabled"""
-    if IS_PYTEST_BENCHMARK_INSTALLED and isinstance(plugin, FixtureManager):
+    if (IS_PYTEST_BENCHMARK_INSTALLED or IS_PYTEST_SPEED_INSTALLED) and isinstance(
+        plugin, FixtureManager
+    ):
         fixture_manager = plugin
         codspeed_plugin: CodSpeedPlugin = manager.get_plugin(PLUGIN_NAME)
         if codspeed_plugin.is_codspeed_enabled:
@@ -100,11 +109,11 @@ def pytest_plugin_registered(plugin, manager: pytest.PytestPluginManager):
                 else fixture_manager.session,
             )
             assert codspeed_benchmark_fixtures is not None
-            # Archive the pytest-benchmark fixture
+            # Archive the alternative benchmark fixture
             fixture_manager._arg2fixturedefs["__benchmark"] = (
                 fixture_manager._arg2fixturedefs["benchmark"]
             )
-            # Replace the pytest-benchmark fixture with the codspeed one
+            # Replace the alternative fixture with the codspeed one
             fixture_manager._arg2fixturedefs["benchmark"] = codspeed_benchmark_fixtures