absolute: don't normalize, add test cases like Ffilesystem'

Author: scivision

+stdlib/absolute.m

@@ -24,6 +24,13 @@
   use_java (1,1) logical = false
 end
 
+cwd = stdlib.posix(pwd());
+
+if (isempty(p) || strlength(p) == 0) && (isempty(base) || strlength(base) == 0)
+   c = cwd;
+   return
+end
+
 if expand_tilde
   c = stdlib.expanduser(p, use_java);
 else
@@ -36,9 +43,14 @@
   % .getAbsolutePath(), .toAbsolutePath()
   % default is Documents/Matlab, which is probably not wanted.
   if isempty(base) || strlength(base) == 0
-    c = stdlib.join(pwd, c);
+    c = cwd + "/" + c;
   else
-    c = stdlib.join(stdlib.absolute(base, string.empty, expand_tilde, use_java), c);
+    d = stdlib.absolute(base, string.empty, expand_tilde, use_java);
+    if isempty(c) || strlength(c) == 0
+      c = d;
+    else
+      c = d + "/" + c;
+    end
   end
 end
 

test/TestResolve.m

@@ -1,5 +1,17 @@
 classdef TestResolve < matlab.unittest.TestCase
 
+methods(TestClassSetup)
+
+function setup_path(tc)
+import matlab.unittest.fixtures.PathFixture
+cwd = fileparts(mfilename("fullpath"));
+top = fullfile(cwd, "..");
+tc.applyFixture(PathFixture(top))
+end
+
+end
+
+
 methods(Test)
 
 
@@ -12,11 +24,20 @@ function test_absolute(tc)
 td = tc.applyFixture(TemporaryFolderFixture).Folder;
 tc.applyFixture(CurrentFolderFixture(td))
 
-tc.verifyEqual(stdlib.absolute(""), stdlib.posix(td))
-tc.verifyEqual(stdlib.absolute("",""), stdlib.posix(td))
-tc.verifyEqual(stdlib.absolute("hi"), stdlib.join(td, "hi"))
-tc.verifyEqual(stdlib.absolute("", "hi"), stdlib.join(td, "hi"))
-tc.verifyEqual(stdlib.absolute("there", "hi"), stdlib.join(td, "hi/there"))
+td = stdlib.posix(td);
+
+tc.verifyEqual(stdlib.absolute(""), td)
+tc.verifyEqual(stdlib.absolute("",""), td)
+
+r = td + "/hi";
+tc.verifyEqual(stdlib.absolute("hi"), r)
+tc.verifyEqual(stdlib.absolute("", "hi"), r)
+tc.verifyEqual(stdlib.absolute("hi", ""), r)
+
+tc.verifyEqual(stdlib.absolute("./hi"), td + "/./hi")
+tc.verifyEqual(stdlib.absolute("../hi"), td + "/../hi")
+
+tc.verifyEqual(stdlib.absolute("there", "hi"), td + "/hi/there")
 
 end