Patch 8.1.0977
Problem:    Blob not tested with Ruby.
Solution:   Add more test coverage.  fixes a crash. (Dominique Pelle,
            closes #4036)
Files:      src/if_ruby.c, src/testdir/test_ruby.vim


*** ../vim-8.1.0976/src/if_ruby.c       2019-02-18 20:42:46.834041670 +0100
--- src/if_ruby.c       2019-02-23 14:17:11.461680173 +0100
***************
*** 1267,1273 ****
      int       i;
      for (i = 0; i < RSTRING_LEN(str); i++)
      {
!       sprintf(buf, "%02X", RSTRING_PTR(str)[i]);
        rb_str_concat(result, rb_str_new2(buf));
      }
      return result;
--- 1267,1273 ----
      int       i;
      for (i = 0; i < RSTRING_LEN(str); i++)
      {
!       sprintf(buf, "%02X", (unsigned char)(RSTRING_PTR(str)[i]));
        rb_str_concat(result, rb_str_new2(buf));
      }
      return result;
*** ../vim-8.1.0976/src/testdir/test_ruby.vim   2018-08-11 14:24:06.945748177 
+0200
--- src/testdir/test_ruby.vim   2019-02-23 14:22:47.707724036 +0100
***************
*** 306,311 ****
--- 306,314 ----
    call assert_equal('foo',      RubyEval('Vim::evaluate("\"foo\"")'))
    call assert_equal('String',   RubyEval('Vim::evaluate("\"foo\"").class'))
  
+   call assert_equal('["\x01\xAB"]', 
RubyEval('Vim::evaluate("0z01ab").unpack("M")'))
+   call assert_equal('String',       RubyEval('Vim::evaluate("0z01ab").class'))
+ 
    call assert_equal('[1, 2]',   RubyEval('Vim::evaluate("[1, 2]")'))
    call assert_equal('Array',    RubyEval('Vim::evaluate("[1, 2]").class'))
  
***************
*** 324,329 ****
--- 327,339 ----
    call assert_equal('FalseClass',RubyEval('Vim::evaluate("v:false").class'))
  endfunc
  
+ func Test_Vim_blob()
+   call assert_equal('0z',         RubyEval('Vim::blob("")'))
+   call assert_equal('0z31326162', RubyEval('Vim::blob("12ab")'))
+   call assert_equal('0z00010203', RubyEval('Vim::blob("\x00\x01\x02\x03")'))
+   call assert_equal('0z8081FEFF', RubyEval('Vim::blob("\x80\x81\xfe\xff")'))
+ endfunc
+ 
  func Test_Vim_evaluate_list()
    call setline(line('$'), ['2 line 2'])
    ruby Vim.command("normal /^2\n")
*** ../vim-8.1.0976/src/version.c       2019-02-22 19:40:57.693250456 +0100
--- src/version.c       2019-02-23 14:18:10.413345154 +0100
***************
*** 781,782 ****
--- 781,784 ----
  {   /* Add new patch number below this line */
+ /**/
+     977,
  /**/

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