Index: test/lldbtest.py
===================================================================
--- test/lldbtest.py
+++ test/lldbtest.py
@@ -684,11 +684,20 @@
     return skipUnlessPlatform(getDarwinOSTriples())(func)
 
 def getPlatform():
+    """Returns the platform the test suite is running on."""
     platform = lldb.DBG.GetSelectedPlatform().GetTriple().split('-')[2]
     if platform.startswith('freebsd'):
         platform = 'freebsd'
     return platform
 
+def platformIsDarwin():
+    """Returns true if the OS triple for the selected platform is any valid apple OS"""
+    return getPlatform() in getDarwinOSTriples()
+
+def platformIsLinux():
+    """Returns true if the OS triple for the selected platform is any valid apple OS"""
+    return getPlatform() == "linux"
+
 def skipIfPlatform(oslist):
     """Decorate the item to skip tests if running on one of the listed platforms."""
     return unittest2.skipIf(getPlatform() in oslist,
@@ -849,9 +858,9 @@
             os.chdir(os.path.join(os.environ["LLDB_TEST"], cls.mydir))
 
         # Set platform context.
-        if sys.platform.startswith('darwin'):
+        if platformIsDarwin():
             cls.platformContext = _PlatformContext('DYLD_LIBRARY_PATH', 'lib', 'dylib')
-        elif sys.platform.startswith('linux') or sys.platform.startswith('freebsd'):
+        elif platformIsLinux() or getPlatform() == 'freebsd':
             cls.platformContext = _PlatformContext('LD_LIBRARY_PATH', 'lib', 'so')
         else:
             cls.platformContext = None
@@ -1383,13 +1392,11 @@
 
     def platformIsDarwin(self):
         """Returns true if the OS triple for the selected platform is any valid apple OS"""
-        platform_name = self.getPlatform()
-        return platform_name in getDarwinOSTriples()
+        return platformIsDarwin()
 
     def platformIsLinux(self):
         """Returns true if the OS triple for the selected platform is any valid apple OS"""
-        platform_name = self.getPlatform()
-        return platform_name == "linux"
+        return platformIsLinux()
 
     def getPlatform(self):
         """Returns the platform the test suite is running on."""