read_symlink: return string

Author: scivision

+stdlib/+fileio/read_symlink.m

@@ -16,7 +16,7 @@
 
 % https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/nio/file/Files.html#readSymbolicLink(java.nio.file.Path)
 % must be absolute path
-r = java.nio.file.Files.readSymbolicLink(java.io.File(r).toPath());
+r = stdlib.fileio.posix(java.nio.file.Files.readSymbolicLink(java.io.File(r).toPath()));
 
 else
   [ok, t] = isSymbolicLink(p);

test/TestSymlink.m

@@ -42,14 +42,21 @@ function test_is_symlink(tc)
 
 end
 
+
 function test_read_symlink(tc)
+import matlab.unittest.constraints.IsOfClass
 
 tc.verifyEmpty(stdlib.read_symlink("not-exist"))
 tc.verifyEmpty(stdlib.read_symlink(tc.TestData.this))
-tc.verifyNotEmpty(stdlib.read_symlink(tc.TestData.link))
+
+t = stdlib.read_symlink(tc.TestData.link);
+tc.verifyNotEmpty(t)
+tc.verifyThat(t, IsOfClass('string'))
+tc.verifyTrue(stdlib.samepath(tc.TestData.this, t))
 
 end
 
+
 function test_create_symlink(tc)
 
 tc.verifyFalse(stdlib.create_symlink(tc.TestData.this, tc.TestData.link))
@@ -61,4 +68,4 @@ function test_create_symlink(tc)
 
 end
 
-end
+end