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Add 'logical' CPU count choice for --numprocesses

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This can significantly speed up runs when testing is not CPU-bound.
This commit is contained in:
Kyle Roeschley
2021-03-25 10:37:29 -05:00
parent 1dc019709c
commit 4d27110beb
3 changed files with 28 additions and 9 deletions
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16
testing/test_plugin.py
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@@ -69,6 +69,12 @@ def test_auto_detect_cpus(testdir, monkeypatch):
assert config.getoption("numprocesses") == 0
assert config.getoption("dist") == "no"
config = testdir.parseconfigure("-nlogical", "--pdb")
check_options(config)
assert config.getoption("usepdb")
assert config.getoption("numprocesses") == 0
assert config.getoption("dist") == "no"
monkeypatch.delattr(os, "sched_getaffinity", raising=False)
monkeypatch.setenv("TRAVIS", "true")
config = testdir.parseconfigure("-nauto")
@@ -81,12 +87,16 @@ def test_auto_detect_cpus_psutil(testdir, monkeypatch):
psutil = pytest.importorskip("psutil")
monkeypatch.setattr(psutil, "cpu_count", lambda logical=True: 42)
monkeypatch.setattr(psutil, "cpu_count", lambda logical=True: 84 if logical else 42)
config = testdir.parseconfigure("-nauto")
check_options(config)
assert config.getoption("numprocesses") == 42
config = testdir.parseconfigure("-nlogical")
check_options(config)
assert config.getoption("numprocesses") == 84
def test_hook_auto_num_workers(testdir, monkeypatch):
from xdist.plugin import pytest_cmdline_main as check_options
@@ -101,6 +111,10 @@ def test_hook_auto_num_workers(testdir, monkeypatch):
check_options(config)
assert config.getoption("numprocesses") == 42
config = testdir.parseconfigure("-nlogical")
check_options(config)
assert config.getoption("numprocesses") == 42
def test_boxed_with_collect_only(testdir):
from xdist.plugin import pytest_cmdline_main as check_options