disk_avail corrections and test

Author: scivision

+stdlib/+python/disk_available.m

@@ -6,11 +6,10 @@
 
 try
   di = py.shutil.disk_usage(p);
-  f = int64(di.free);
+  f = uint64(int64(di.free));
   % int64 first is for Matlab <= R2022a
 catch e
   warning(e.identifier, "disk_available(%s) failed: %s", p, e.message);
-  f = [];
 end
 
 end

+stdlib/+sys/disk_available.m

@@ -15,9 +15,7 @@
 
 [s, t] = system(cmd);
 if s == 0
-  t = strip(t);
-else
-  t = "";
+  t = uint64(str2double(t));
 end
 
 end

+stdlib/cpu_arch.m

@@ -2,16 +2,12 @@
 
 function a = cpu_arch()
 
-if stdlib.has_dotnet()
-  a = stdlib.dotnet.cpu_arch();
-elseif stdlib.has_java()
+if stdlib.has_java()
   a = stdlib.java.cpu_arch();
+elseif stdlib.has_dotnet()
+  a = stdlib.dotnet.cpu_arch();
 else
-  a = computer('arch');
-end
-
-try  %#ok<*TRYNC>
-  a = string(a);
+  a = string(computer('arch'));
 end
 
 end

+stdlib/disk_available.m

@@ -9,13 +9,10 @@
   d {mustBeTextScalar}
 end
 
-f = uint64(0);
-if ~stdlib.exists(d), return, end
-
-if stdlib.has_dotnet()
-  f = stdlib.dotnet.disk_available(d);
-elseif stdlib.has_java()
+if stdlib.has_java()
   f = stdlib.java.disk_available(d);
+elseif stdlib.has_dotnet()
+  f = stdlib.dotnet.disk_available(d);
 elseif stdlib.has_python()
   f = stdlib.python.disk_available(d);
 else

test/TestDisk.m

@@ -30,10 +30,14 @@ function test_disk_available(tc, Ps, disk_available_fun)
 
 zero = uint64(0);
 
+da = disk_available_fun(Ps);
+
+tc.verifyClass(da, 'uint64')
+
 if stdlib.exists(Ps)
-  tc.verifyGreaterThan(disk_available_fun(Ps), zero)
+  tc.verifyGreaterThan(da, zero)
 else
-  tc.verifyEqual(disk_available_fun(Ps), zero)
+  tc.verifyEqual(da, zero)
 end
 end