specify checking man page path

Without setting the man path, this would be checking that the installed salt
package used to bootstap has an spm man page, which is possible that it
doesn't, and also not what we want to check

tests/integration/spm/test_man_spm.py

@@ -4,19 +4,41 @@ Tests man spm
 '''
 # Import python libs
 from __future__ import absolute_import
+import os
+import shutil
+import sys
+import tempfile
 
 # Import Salt Testing libs
 from tests.support.case import ModuleCase
+from tests.support.helpers import destructiveTest
+from tests.support.paths import CODE_DIR
 
 
+@destructiveTest
 class SPMManTest(ModuleCase):
     '''
     Validate man spm
     '''
+
+    def setUp(self):
+        self.tmpdir = tempfile.mktemp()
+        os.mkdir(self.tmpdir)
+        self.run_function('cmd.run', ['{0} {1} install --root={2}'.format(
+            sys.executable,
+            os.path.join(CODE_DIR, 'setup.py'),
+            self.tmpdir
+        )])
+
+    def tearDown(self):
+        shutil.rmtree(self.tmpdir)
+
     def test_man_spm(self):
         '''
         test man spm
         '''
-        cmd = self.run_function('cmd.run', ['man spm'])
+        manpath = self.run_function('cmd.run', ['find {0} -name spm.1'.format(self.tmpdir)])
+        self.assertIn('/man1/', manpath)
+        cmd = self.run_function('cmd.run', ['man {0}'.format(manpath)])
         self.assertIn('Salt Package Manager', cmd)
         self.assertIn('command for managing Salt packages', cmd)