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import subprocess
from datetime import datetime
from unittest.mock import MagicMock, PropertyMock
import pytest
from briefcase.exceptions import BriefcaseCommandError
@pytest.mark.parametrize("is_color_enabled", [True, False])
def test_logcat_tail(mock_tools, adb, is_color_enabled, monkeypatch):
"""Invoking `logcat_tail()` calls `run()` with the appropriate parameters."""
# Mock whether color is enabled for the console
monkeypatch.setattr(
type(mock_tools.console),
"is_color_enabled",
PropertyMock(return_value=is_color_enabled),
)
# Invoke logcat_tail with a specific timestamp
adb.logcat_tail(since=datetime(2022, 11, 10, 9, 8, 7))
# Validate call parameters.
mock_tools.subprocess.run.assert_called_once_with(
[
mock_tools.android_sdk.adb_path,
"-s",
"exampleDevice",
"logcat",
"--format=tag",
"-t",
"11-10 09:08:07.000000",
"-s",
"MainActivity:*",
"stdio:*",
"python.stdout:*",
"AndroidRuntime:*",
]
+ (["--format=color"] if is_color_enabled else []),
env=mock_tools.android_sdk.env,
check=True,
encoding="UTF-8",
)
def test_adb_failure(mock_tools, adb):
"""If adb logcat fails, the error is caught."""
# Mock out the run command on an adb instance
mock_tools.subprocess.run = MagicMock(
side_effect=subprocess.CalledProcessError(returncode=1, cmd="adb logcat")
)
with pytest.raises(BriefcaseCommandError):
adb.logcat_tail(since=datetime(2022, 11, 10, 9, 8, 7))
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