patch 9.0.0795: readblob() always reads the whole file
Problem: readblob() always reads the whole file.
Solution: Add arguments to read part of the file. (Ken Takata,
closes #11402)
diff --git a/src/testdir/test_blob.vim b/src/testdir/test_blob.vim
index ce8c3d0..a54cede 100644
--- a/src/testdir/test_blob.vim
+++ b/src/testdir/test_blob.vim
@@ -488,10 +488,29 @@
call writefile(b, 'Xblob')
VAR br = readfile('Xblob', 'B')
call assert_equal(b, br)
+ VAR br2 = readblob('Xblob')
+ call assert_equal(b, br2)
+ VAR br3 = readblob('Xblob', 1)
+ call assert_equal(b[1 :], br3)
+ VAR br4 = readblob('Xblob', 1, 2)
+ call assert_equal(b[1 : 2], br4)
+ VAR br5 = readblob('Xblob', -3)
+ call assert_equal(b[-3 :], br5)
+ VAR br6 = readblob('Xblob', -3, 2)
+ call assert_equal(b[-3 : -2], br6)
+
+ VAR br1e = readblob('Xblob', 10000)
+ call assert_equal(0z, br1e)
+ VAR br2e = readblob('Xblob', -10000)
+ call assert_equal(0z, br2e)
+
call delete('Xblob')
END
call v9.CheckLegacyAndVim9Success(lines)
+ call assert_fails("call readblob('notexist')", 'E484:')
+ " TODO: How do we test for the E485 error?
+
" This was crashing when calling readfile() with a directory.
call assert_fails("call readfile('.', 'B')", 'E17: "." is a directory')
endfunc