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import subprocess
from unittest.mock import Mock
def test_pid_exists_succeed(adb):
"""adb.pid_exists() can be called on a process that exists."""
adb.run = Mock(return_value="")
assert adb.pid_exists("1234")
adb.run.assert_called_once_with("shell", "test", "-e", "/proc/1234")
def test_pid_exists_quiet(adb):
"""adb.pid_exists() can be called in quiet mode on a process that exists."""
adb.run = Mock(return_value="")
assert adb.pid_exists("1234", quiet=True)
adb.run.assert_called_once_with("shell", "test", "-e", "/proc/1234", quiet=True)
def test_pid_does_not_exist(adb):
"""If adb.pid_exists() returns a status code of 1, it is interpreted as the process
not existing."""
adb.run = Mock(side_effect=subprocess.CalledProcessError(returncode=1, cmd="test"))
assert not adb.pid_exists("9999") is None
adb.run.assert_called_once_with("shell", "test", "-e", "/proc/9999")
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