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ipatests: test the cgroup v2 memory restrictions

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Also rename a few tests to hopefully make their purpose clearer.

https://pagure.io/freeipa/issue/8635

Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
This commit is contained in:
Rob Crittenden
2021-01-20 15:59:27 +01:00
committed by Florence Blanc-Renaud
parent 176fe83a01
commit 573d66e1f9
1 changed files with 71 additions and 5 deletions
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ipatests/test_ipaserver/test_install/test_installutils.py
+71 -5
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@@ -210,7 +210,7 @@ RAM_NOT_OK = str(10 * 1000 * 1000)
@patch('ipaserver.install.installutils.in_container')
@patch('builtins.open', mock_open_multi(RAM_NOT_OK, "0"))
@patch('os.path.exists')
def test_in_container_insufficient_ram(mock_exists, mock_in_container):
def test_cgroup_v1_insufficient_ram(mock_exists, mock_in_container):
"""In a container with insufficient RAM and zero used"""
mock_in_container.return_value = True
mock_exists.side_effect = [True, True]
@@ -222,7 +222,7 @@ def test_in_container_insufficient_ram(mock_exists, mock_in_container):
@patch('ipaserver.install.installutils.in_container')
@patch('builtins.open', mock_open_multi(RAM_OK, RAM_CA_USED))
@patch('os.path.exists')
def test_in_container_ram_ok_no_ca(mock_exists, mock_in_container):
def test_cgroup_v1_ram_ok_no_ca(mock_exists, mock_in_container):
"""In a container with just enough RAM to install w/o a CA"""
mock_in_container.return_value = True
mock_exists.side_effect = [True, True]
@@ -233,7 +233,7 @@ def test_in_container_ram_ok_no_ca(mock_exists, mock_in_container):
@patch('ipaserver.install.installutils.in_container')
@patch('builtins.open', mock_open_multi(RAM_OK, RAM_MOSTLY_USED))
@patch('os.path.exists')
def test_in_container_insufficient_ram_with_ca(mock_exists, mock_in_container):
def test_cgroup_v1_insufficient_ram_with_ca(mock_exists, mock_in_container):
"""In a container and just miss the minimum RAM required"""
mock_in_container.return_value = True
mock_exists.side_effect = [True, True]
@@ -243,8 +243,74 @@ def test_in_container_insufficient_ram_with_ca(mock_exists, mock_in_container):
@patch('ipaserver.install.installutils.in_container')
@patch('builtins.open', mock_open_multi(RAM_NOT_OK, "0"))
@patch('os.path.exists')
def test_cgroup_v2_insufficient_ram(mock_exists, mock_in_container):
"""In a container with insufficient RAM and zero used"""
mock_in_container.return_value = True
mock_exists.side_effect = [False, True, True]
with pytest.raises(ScriptError):
installutils.check_available_memory(True)
@patch('ipaserver.install.installutils.in_container')
@patch('builtins.open', mock_open_multi(RAM_OK, RAM_CA_USED))
@patch('os.path.exists')
def test_cgroup_v2_ram_ok_no_ca(mock_exists, mock_in_container):
"""In a container with just enough RAM to install w/o a CA"""
mock_in_container.return_value = True
mock_exists.side_effect = [False, True, True]
installutils.check_available_memory(False)
@patch('ipaserver.install.installutils.in_container')
@patch('builtins.open', mock_open_multi(RAM_OK, RAM_MOSTLY_USED))
@patch('os.path.exists')
def test_cgroup_v2_insufficient_ram_with_ca(mock_exists, mock_in_container):
"""In a container and just miss the minimum RAM required"""
mock_in_container.return_value = True
mock_exists.side_effect = [False, True, True]
with pytest.raises(ScriptError):
installutils.check_available_memory(True)
@patch('ipaserver.install.installutils.in_container')
@patch('builtins.open', mock_open_multi('max', RAM_MOSTLY_USED))
@patch('os.path.exists')
@patch('psutil.virtual_memory')
def test_not_container_insufficient_ram_with_ca(mock_psutil, mock_in_container):
def test_cgroup_v2_no_limit_ok(mock_psutil, mock_exists, mock_in_container):
"""In a container and just miss the minimum RAM required"""
mock_in_container.return_value = True
fake_memory = psutil._pslinux.svmem
fake_memory.available = int(RAM_OK)
mock_psutil.return_value = fake_memory
mock_exists.side_effect = [False, True, True]
installutils.check_available_memory(True)
@patch('ipaserver.install.installutils.in_container')
@patch('builtins.open', mock_open_multi('max', RAM_MOSTLY_USED))
@patch('os.path.exists')
@patch('psutil.virtual_memory')
def test_cgroup_v2_no_limit_not_ok(mock_psutil, mock_exists, mock_in_container):
"""In a container and just miss the minimum RAM required"""
mock_in_container.return_value = True
fake_memory = psutil._pslinux.svmem
fake_memory.available = int(RAM_NOT_OK)
mock_psutil.return_value = fake_memory
mock_exists.side_effect = [False, True, True]
with pytest.raises(ScriptError):
installutils.check_available_memory(True)
@patch('ipaserver.install.installutils.in_container')
@patch('psutil.virtual_memory')
def test_bare_insufficient_ram_with_ca(mock_psutil, mock_in_container):
"""Not a container and insufficient RAM"""
mock_in_container.return_value = False
fake_memory = psutil._pslinux.svmem
@@ -257,7 +323,7 @@ def test_not_container_insufficient_ram_with_ca(mock_psutil, mock_in_container):
@patch('ipaserver.install.installutils.in_container')
@patch('psutil.virtual_memory')
def test_not_container_ram_ok(mock_psutil, mock_in_container):
def test_bare_ram_ok(mock_psutil, mock_in_container):
"""Not a container and sufficient RAM"""
mock_in_container.return_value = False
fake_memory = psutil._pslinux.svmem