remove extract_zstd

it was moved to https://github.com/gemini3d/mat_gemini

Author: scivision

+stdlib/extract_zstd.m

@@ -17,9 +17,11 @@
   method (1,1) string
 end
 
-hash = [];
-
-if stdlib.is_url(file), return, end
+try
+  hash = string.empty;
+catch
+  hash = [];
+end
 
 if strcmp(method, "sha256") || strcmp(method, "SHA256")
   method = "SHA-256";
@@ -34,7 +36,11 @@
 end
 
 fid = fopen(file, 'r');
-if fid < 1, return, end
+if fid < 1
+  warning(strcat("could not open ", file))
+  return
+end
+disp(strcat("computing ", method, " hash of ", file))
 
 while ~feof(fid)
   % https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/security/MessageDigest.html#update(byte)

+stdlib/file_checksum.m

@@ -1,8 +1,7 @@
 classdef TestHash < matlab.unittest.TestCase
 
 properties (TestParameter)
-type = {'sha256', 'md5'}
-hash = {"36c1bbbdfd8d04ef546ffb15b9c0a65767fd1fe9a6135a257847e3a51fb1426c", "d58cfb32e075781ba59082a8b18287f9"}
+Ph = {{"md5", "5d41402abc4b2a76b9719d911017c592"}, {"sha-256", "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"}}
 Pe = {"", "/"}
 end
 
@@ -13,57 +12,24 @@ function java_required(tc)
 end
 
 
-methods (Test, ParameterCombination = 'sequential')
-
-function test_extract(tc)
-import matlab.unittest.constraints.IsFile
-
-r = fileparts(mfilename('fullpath'));
-fn = stdlib.posix(r) + "/hello.tar.zst";
-
-tc.assumeThat(fn, IsFile)
-
-tc.assumeNotEmpty(stdlib.which("cmake"), "CMake not available")
-
-td = stdlib.posix(tc.createTemporaryFolder());
-
-stdlib.extract_zstd(fn, td)
-tc.verifyThat(td + "/test/hello.txt", IsFile)
-
-end
-
-
-function test_hash(tc, type, hash)
-
-r = fileparts(mfilename('fullpath'));
-fn = fullfile(r, "hello.tar.zst");
-
-switch type
-case 'sha256', h = stdlib.sha256sum(fn);
-case 'md5', h = stdlib.md5sum(fn);
-end
-
-tc.verifyEqual(h, hash)
-
-end
+methods (Test)
 
 
-function test_hash_text(tc)
+function test_hash_text(tc, Ph)
 import matlab.unittest.constraints.IsFile
 
-td = stdlib.posix(tc.createTemporaryFolder());
+td = tc.createTemporaryFolder();
 
 fn = td + "/hello";
 fid = fopen(fn, "w");
-tc.addTeardown(@fclose, fid)
 
 tc.assumeGreaterThan(fid, 0);
 fprintf(fid, "hello");
+fclose(fid);
 
 tc.assumeThat(fn, IsFile)
 
-tc.verifyEqual(stdlib.file_checksum(fn, "md5"), "5d41402abc4b2a76b9719d911017c592")
-tc.verifyEqual(stdlib.file_checksum(fn, "sha256"), "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824")
+tc.verifyEqual(stdlib.file_checksum(fn, Ph{1}), Ph{2})
 
 end