diff options
Diffstat (limited to 'roles/openshift_health_checker/test/etcd_volume_test.py')
-rw-r--r-- | roles/openshift_health_checker/test/etcd_volume_test.py | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/roles/openshift_health_checker/test/etcd_volume_test.py b/roles/openshift_health_checker/test/etcd_volume_test.py new file mode 100644 index 000000000..917045526 --- /dev/null +++ b/roles/openshift_health_checker/test/etcd_volume_test.py @@ -0,0 +1,149 @@ +import pytest + +from openshift_checks.etcd_volume import EtcdVolume, OpenShiftCheckException + + +@pytest.mark.parametrize('ansible_mounts,extra_words', [ + ([], ['none']), # empty ansible_mounts + ([{'mount': '/mnt'}], ['/mnt']), # missing relevant mount paths +]) +def test_cannot_determine_available_disk(ansible_mounts, extra_words): + task_vars = dict( + ansible_mounts=ansible_mounts, + ) + check = EtcdVolume(execute_module=fake_execute_module) + + with pytest.raises(OpenShiftCheckException) as excinfo: + check.run(tmp=None, task_vars=task_vars) + + for word in 'Unable to find etcd storage mount point'.split() + extra_words: + assert word in str(excinfo.value) + + +@pytest.mark.parametrize('size_limit,ansible_mounts', [ + ( + # if no size limit is specified, expect max usage + # limit to default to 90% of size_total + None, + [{ + 'mount': '/', + 'size_available': 40 * 10**9, + 'size_total': 80 * 10**9 + }], + ), + ( + 1, + [{ + 'mount': '/', + 'size_available': 30 * 10**9, + 'size_total': 30 * 10**9, + }], + ), + ( + 20000000000, + [{ + 'mount': '/', + 'size_available': 20 * 10**9, + 'size_total': 40 * 10**9, + }], + ), + ( + 5000000000, + [{ + # not enough space on / ... + 'mount': '/', + 'size_available': 0, + 'size_total': 0, + }, { + # not enough space on /var/lib ... + 'mount': '/var/lib', + 'size_available': 2 * 10**9, + 'size_total': 21 * 10**9, + }, { + # ... but enough on /var/lib/etcd + 'mount': '/var/lib/etcd', + 'size_available': 36 * 10**9, + 'size_total': 40 * 10**9 + }], + ) +]) +def test_succeeds_with_recommended_disk_space(size_limit, ansible_mounts): + task_vars = dict( + etcd_device_usage_threshold_percent=size_limit, + ansible_mounts=ansible_mounts, + ) + + if task_vars["etcd_device_usage_threshold_percent"] is None: + task_vars.pop("etcd_device_usage_threshold_percent") + + check = EtcdVolume(execute_module=fake_execute_module) + result = check.run(tmp=None, task_vars=task_vars) + + assert not result.get('failed', False) + + +@pytest.mark.parametrize('size_limit_percent,ansible_mounts,extra_words', [ + ( + # if no size limit is specified, expect max usage + # limit to default to 90% of size_total + None, + [{ + 'mount': '/', + 'size_available': 1 * 10**9, + 'size_total': 100 * 10**9, + }], + ['99.0%'], + ), + ( + 70.0, + [{ + 'mount': '/', + 'size_available': 1 * 10**6, + 'size_total': 5 * 10**9, + }], + ['100.0%'], + ), + ( + 40.0, + [{ + 'mount': '/', + 'size_available': 2 * 10**9, + 'size_total': 6 * 10**9, + }], + ['66.7%'], + ), + ( + None, + [{ + # enough space on /var ... + 'mount': '/var', + 'size_available': 20 * 10**9, + 'size_total': 20 * 10**9, + }, { + # .. but not enough on /var/lib + 'mount': '/var/lib', + 'size_available': 1 * 10**9, + 'size_total': 20 * 10**9, + }], + ['95.0%'], + ), +]) +def test_fails_with_insufficient_disk_space(size_limit_percent, ansible_mounts, extra_words): + task_vars = dict( + etcd_device_usage_threshold_percent=size_limit_percent, + ansible_mounts=ansible_mounts, + ) + + if task_vars["etcd_device_usage_threshold_percent"] is None: + task_vars.pop("etcd_device_usage_threshold_percent") + + check = EtcdVolume(execute_module=fake_execute_module) + result = check.run(tmp=None, task_vars=task_vars) + + assert result['failed'] + for word in extra_words: + assert word in result['msg'] + + +def fake_execute_module(*args): + raise AssertionError('this function should not be called') |