test: use Eventually timeout

Author: scivision

test/TestSubprocess.m

@@ -75,18 +75,23 @@ function test_env_run(tc)
 
 function test_timeout(tc)
 import matlab.unittest.constraints.StartsWithSubstring
+import matlab.unittest.constraints.Eventually
+import matlab.unittest.constraints.IsEqualTo
 
 timeout = 1;
 
 if ispc
-  c = ["powershell", "-command", "Start-Sleep -s 3"];
+  % https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/start-sleep
+  c = ["powershell", "-command", "Start-Sleep -m 500"];
 else
-  c = ["sleep", "3"];
+  c = ["bash", "-c", "sleep", "0.5"];
 end
 
-[ret, ~, err] = stdlib.subprocess_run(c, "timeout", timeout);
+tc.verifyThat(@()stdlib.subprocess_run(c,timeout=timeout), ...
+  Eventually(IsEqualTo(-1), WithTimeoutOf=2))
+
+[~, ~, err] = stdlib.subprocess_run(c, timeout=timeout);
 
-tc.verifyNotEqual(ret, 0, err)
 tc.verifyThat(err, StartsWithSubstring("Subprocess timeout"))
 
 end