test: by handle

Author: scivision

+stdlib/+java/ram_free.m

@@ -0,0 +1,13 @@
+function bytes = ram_free()
+
+b = javaMethod("getOperatingSystemMXBean", "java.lang.management.ManagementFactory");
+
+if stdlib.java_api() < 14
+  bytes = b.getFreePhysicalMemorySize();
+else
+  bytes = b.getFreeMemorySize();
+end
+
+bytes = uint64(bytes);
+
+end

+stdlib/device.m

@@ -13,8 +13,7 @@
   i = stdlib.dotnet.device(p);
 elseif isunix() && stdlib.java_api() >= 11
   % Java 1.8 is buggy in some corner cases, so we require at least 11.
-  opt = javaMethod("values", "java.nio.file.LinkOption");
-  i = java.nio.file.Files.getAttribute(javaPathObject(p), "unix:dev", opt);
+  i = stdlib.java.device(p);
 end
 
 if isempty(i)

+stdlib/ram_free.m

@@ -23,7 +23,7 @@
 bytes = 0;
 
 if stdlib.has_java()
-  bytes = ram_free_java();
+  bytes = stdlib.java.ram_free();
 elseif stdlib.has_python()
   bytes = stdlib.python.ram_free();
 end
@@ -35,18 +35,3 @@
 bytes = uint64(bytes);
 
 end
-
-
-function bytes = ram_free_java()
-
-b = javaMethod("getOperatingSystemMXBean", "java.lang.management.ManagementFactory");
-
-if stdlib.java_api() < 14
-  bytes = b.getFreePhysicalMemorySize();
-else
-  bytes = b.getFreeMemorySize();
-end
-
-end
-
-%!assert(ram_free() > 0)

.gitignore

@@ -3,6 +3,7 @@ CodeIssues.sarif
 *.xml
 *.html
 
+release/
 resources/
 .buildtool/
 *.asv

test/TestSys.m

@@ -7,6 +7,7 @@
 properties (TestParameter)
 fun = {stdlib.isoctave, stdlib.has_dotnet, ...
        stdlib.has_java, stdlib.has_python}
+ram_free_fun = {@stdlib.ram_free, @stdlib.sys.ram_free, @stdlib.java.ram_free, @stdlib.python.ram_free}
 end
 
 
@@ -115,14 +116,28 @@ function test_ram_total(tc)
 end
 
 
-function test_ram_free(tc)
+function test_ram_free(tc, ram_free_fun)
 % don't verify less than or equal total due to shaky system measurements
-f = stdlib.ram_free();
+is_capable(tc, ram_free_fun)
+
+f = ram_free_fun();
 tc.verifyGreaterThan(f, 0)
 tc.verifyClass(f, 'uint64')
 end
 
 end
 
+end
+
+
+function is_capable(tc, f)
+
+n = func2str(f);
+if contains(n, "java")
+  tc.assumeTrue(stdlib.has_java())
+end
+if contains(n, "python")
+  tc.assumeTrue(stdlib.has_python())
+end
 
 end