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BUG=b:233893248
TEST=CQ

Change-Id: I66591d7a738d241aed3290138c0f68065ab10a6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3879174
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>
diff --git a/scripts/sysmon/osinfo_metrics_unittest.py b/scripts/sysmon/osinfo_metrics_unittest.py
index 66913b6..4771b9f 100644
--- a/scripts/sysmon/osinfo_metrics_unittest.py
+++ b/scripts/sysmon/osinfo_metrics_unittest.py
@@ -15,43 +15,50 @@
 
 
 class TestOSInfoMetrics(cros_test_lib.TestCase):
-  """Tests for osinfo_metrics."""
+    """Tests for osinfo_metrics."""
 
-  def setUp(self):
-    patcher = mock.patch(
-        'chromite.third_party.infra_libs.ts_mon.common.interface.state.store',
-        autospec=True)
-    self.store = patcher.start()
-    self.addCleanup(patcher.stop)
+    def setUp(self):
+        patcher = mock.patch(
+            "chromite.third_party.infra_libs.ts_mon.common.interface.state.store",
+            autospec=True,
+        )
+        self.store = patcher.start()
+        self.addCleanup(patcher.stop)
 
-  def test_collect(self):
-    distro = ('Ubuntu', '14.04', 'trusty')
-    # This is removed in Python 3.8+.
-    try:
-      dist = mock.patch('platform.dist', autospec=True, return_value=distro)
-      dist.start()
-    except AttributeError:
-      distro = ('', '', '')
-      dist = None
+    def test_collect(self):
+        distro = ("Ubuntu", "14.04", "trusty")
+        # This is removed in Python 3.8+.
+        try:
+            dist = mock.patch(
+                "platform.dist", autospec=True, return_value=distro
+            )
+            dist.start()
+        except AttributeError:
+            distro = ("", "", "")
+            dist = None
 
-    with mock.patch('platform.system', autospec=True) as system, \
-         mock.patch('sys.maxsize', 2**64):
-      system.return_value = 'Linux'
-      if dist is not None:
-        dist.return_value = distro
-      osinfo_metrics.collect_os_info()
+        with mock.patch("platform.system", autospec=True) as system, mock.patch(
+            "sys.maxsize", 2**64
+        ):
+            system.return_value = "Linux"
+            if dist is not None:
+                dist.return_value = distro
+            osinfo_metrics.collect_os_info()
 
-    if dist is not None:
-      dist.stop()
+        if dist is not None:
+            dist.stop()
 
-    setter = self.store.set
-    print(setter.mock_calls)
-    calls = [
-        mock.call('proc/os/name', (), None, distro[0].lower(),
-                  enforce_ge=mock.ANY),
-        mock.call('proc/os/version', (), None, distro[1], enforce_ge=mock.ANY),
-        mock.call('proc/os/arch', (), None, 'x86_64', enforce_ge=mock.ANY),
-        mock.call('proc/python/arch', (), None, '64', enforce_ge=mock.ANY),
-    ]
-    setter.assert_has_calls(calls)
-    self.assertEqual(len(setter.mock_calls), len(calls))
+        setter = self.store.set
+        print(setter.mock_calls)
+        calls = [
+            mock.call(
+                "proc/os/name", (), None, distro[0].lower(), enforce_ge=mock.ANY
+            ),
+            mock.call(
+                "proc/os/version", (), None, distro[1], enforce_ge=mock.ANY
+            ),
+            mock.call("proc/os/arch", (), None, "x86_64", enforce_ge=mock.ANY),
+            mock.call("proc/python/arch", (), None, "64", enforce_ge=mock.ANY),
+        ]
+        setter.assert_has_calls(calls)
+        self.assertEqual(len(setter.mock_calls), len(calls))