get_permissions: handle non-exist path

Author: scivision

+stdlib/get_permissions.m

@@ -12,7 +12,9 @@
 try
   v = filePermissions(f);
 catch e
-  if ~strcmp(e.identifier, "MATLAB:UndefinedFunction") && ...
+  if strcmp(e.identifier, "MATLAB:io:filesystem:filePermissions:CannotFindLocation")
+    return
+  elseif ~strcmp(e.identifier, "MATLAB:UndefinedFunction") && ...
       ~strcmp(e.identifier, "Octave:undefined-function")
     rethrow(e)
   end

test/TestFileImpure.m

@@ -64,7 +64,7 @@ function test_makedir(tc)
 
 %%
 function test_samepath(tc, p_same)
-tc.verifyEqual(stdlib.samepath(p_same{1}, p_same{2}), p_same{3})
+tc.verifyEqual(stdlib.samepath(p_same{1}, p_same{2}), p_same{3}, "samepath(" + p_same{1} + "," + p_same{2} + ")")
 end
 
 
@@ -80,6 +80,9 @@ function test_get_permissions(tc)
 p = stdlib.get_permissions(".");
 tc.verifyThat(p, StartsWithSubstring("r"))
 tc.verifyThat(p, IsOfClass("char"))
+
+p = stdlib.get_permissions(tempname);
+tc.verifyEmpty(p)
 end
 
 function test_handle2filename(tc, ph)