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from io import StringIO
import pytest
from django.core.management import call_command
from health_check.backends import BaseHealthCheckBackend
from health_check.conf import HEALTH_CHECK
from health_check.plugins import plugin_dir
class FailPlugin(BaseHealthCheckBackend):
def check_status(self):
self.add_error("Oops")
class OkPlugin(BaseHealthCheckBackend):
def check_status(self):
pass
class TestCommand:
@pytest.fixture(autouse=True)
def setup(self):
plugin_dir.reset()
plugin_dir.register(FailPlugin)
plugin_dir.register(OkPlugin)
yield
plugin_dir.reset()
def test_command(self):
stdout = StringIO()
with pytest.raises(SystemExit):
call_command("health_check", stdout=stdout)
stdout.seek(0)
assert stdout.read() == (
"FailPlugin ... unknown error: Oops\nOkPlugin ... working\n"
)
def test_command_with_subset(self):
SUBSET_NAME_1 = "subset-1"
SUBSET_NAME_2 = "subset-2"
HEALTH_CHECK["SUBSETS"] = {
SUBSET_NAME_1: ["OkPlugin"],
SUBSET_NAME_2: ["OkPlugin", "FailPlugin"],
}
stdout = StringIO()
call_command("health_check", f"--subset={SUBSET_NAME_1}", stdout=stdout)
stdout.seek(0)
assert stdout.read() == ("OkPlugin ... working\n")
def test_command_with_failed_check_subset(self):
SUBSET_NAME = "subset-2"
HEALTH_CHECK["SUBSETS"] = {SUBSET_NAME: ["OkPlugin", "FailPlugin"]}
stdout = StringIO()
with pytest.raises(SystemExit):
call_command("health_check", f"--subset={SUBSET_NAME}", stdout=stdout)
stdout.seek(0)
assert stdout.read() == (
"FailPlugin ... unknown error: Oops\nOkPlugin ... working\n"
)
def test_command_with_non_existence_subset(self):
SUBSET_NAME = "subset-2"
NON_EXISTENCE_SUBSET_NAME = "abcdef12"
HEALTH_CHECK["SUBSETS"] = {SUBSET_NAME: ["OkPlugin"]}
stdout = StringIO()
with pytest.raises(SystemExit):
call_command("health_check", f"--subset={NON_EXISTENCE_SUBSET_NAME}", stdout=stdout)
stdout.seek(0)
assert stdout.read() == (f"Subset: '{NON_EXISTENCE_SUBSET_NAME}' does not exist.\n")
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