diff options
Diffstat (limited to 'psutil/tests/test_linux.py')
| -rwxr-xr-x | psutil/tests/test_linux.py | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/psutil/tests/test_linux.py b/psutil/tests/test_linux.py index 09063416..13303a54 100755 --- a/psutil/tests/test_linux.py +++ b/psutil/tests/test_linux.py @@ -237,6 +237,31 @@ class TestSystemVirtualMemory(unittest.TestCase): free_value, psutil_value, delta=MEMORY_TOLERANCE, msg='%s %s \n%s' % (free_value, psutil_value, out)) + def test_slab(self): + # Emulate /proc/meminfo because neither vmstat nor free return slab. + def open_mock(name, *args, **kwargs): + if name == '/proc/meminfo': + return io.BytesIO(textwrap.dedent("""\ + Active(anon): 6145416 kB + Active(file): 2950064 kB + Inactive(anon): 574764 kB + Inactive(file): 1567648 kB + MemAvailable: -1 kB + MemFree: 2057400 kB + MemTotal: 16325648 kB + SReclaimable: 346648 kB + Slab: 186836 kB + """).encode()) + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, create=True, side_effect=open_mock) as m: + ret = psutil.virtual_memory() + assert m.called + self.assertEqual(ret.slab, 191320064) + def test_warnings_on_misses(self): # Emulate a case where /proc/meminfo provides few info. # psutil is supposed to set the missing fields to 0 and @@ -280,6 +305,7 @@ class TestSystemVirtualMemory(unittest.TestCase): self.assertEqual(ret.shared, 0) self.assertEqual(ret.buffers, 0) self.assertEqual(ret.available, 0) + self.assertEqual(ret.slab, 0) def test_avail_old_percent(self): # Make sure that our calculation of avail mem for old kernels |