linux tests refactoring

1 files changed, 12 insertions, 2 deletions

diff --git a/psutil/tests/test_linux.py b/psutil/tests/test_linux.py
index 80f82c1d..4d4215f1 100644
--- a/psutil/tests/test_linux.py
+++ b/psutil/tests/test_linux.py
@@ -55,6 +55,7 @@ if LINUX:
 # utils
 # =====================================================================
 
+
 def get_ipv4_address(ifname):
     import fcntl
     ifname = ifname[:15]
@@ -90,7 +91,8 @@ def free_swap():
     """Parse 'free' cmd and return swap memory's s total, used and free
     values.
     """
-    lines = sh('free').split('\n')
+    out = sh('free')
+    lines = out.split('\n')
     for line in lines:
         if line.startswith('Swap'):
             _, total, used, free = line.split()
@@ -107,7 +109,8 @@ def free_physmem():
     # and 'cached' memory which may have different positions so we
     # do not return them.
     # https://github.com/giampaolo/psutil/issues/538#issuecomment-57059946
-    lines = sh('free').split('\n')
+    out = sh('free')
+    lines = out.split('\n')
     for line in lines:
         if line.startswith('Mem'):
             total, used, free, shared = \
@@ -121,6 +124,7 @@ def free_physmem():
 # system virtual memory
 # =====================================================================
 
+
 @unittest.skipUnless(LINUX, "not a Linux system")
 class TestSystemVirtualMemory(unittest.TestCase):
 
@@ -187,6 +191,7 @@ class TestSystemVirtualMemory(unittest.TestCase):
 # system swap memory
 # =====================================================================
 
+
 @unittest.skipUnless(LINUX, "not a Linux system")
 class TestSystemSwapMemory(unittest.TestCase):
 
@@ -248,6 +253,7 @@ class TestSystemSwapMemory(unittest.TestCase):
 # system CPU
 # =====================================================================
 
+
 @unittest.skipUnless(LINUX, "not a Linux system")
 class TestSystemCPU(unittest.TestCase):
 
@@ -332,6 +338,7 @@ class TestSystemCPU(unittest.TestCase):
 # system network
 # =====================================================================
 
+
 @unittest.skipUnless(LINUX, "not a Linux system")
 class TestSystemNetwork(unittest.TestCase):
 
@@ -442,6 +449,7 @@ class TestSystemNetwork(unittest.TestCase):
 # system disk
 # =====================================================================
 
+
 @unittest.skipUnless(LINUX, "not a Linux system")
 class TestSystemDisks(unittest.TestCase):
 
@@ -602,6 +610,7 @@ class TestSystemDisks(unittest.TestCase):
 # misc
 # =====================================================================
 
+
 @unittest.skipUnless(LINUX, "not a Linux system")
 class TestMisc(unittest.TestCase):
 
@@ -776,6 +785,7 @@ class TestMisc(unittest.TestCase):
 # test process
 # =====================================================================
 
+
 @unittest.skipUnless(LINUX, "not a Linux system")
 class TestProcess(unittest.TestCase):