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patch 8.2.3438: cannot manipulate blobs

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Problem:    Cannot manipulate blobs.
Solution:   Add blob2list() and list2blob(). (Yegappan Lakshmanan,
            closes #8868)
This commit is contained in:
Yegappan Lakshmanan
2021-09-14 17:54:30 +02:00
committed by Bram Moolenaar
parent f5785cf059
commit 5dfe467432
11 changed files with 185 additions and 1 deletions
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39
src/testdir/test_blob.vim
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@@ -638,4 +638,43 @@ func Test_blob_sort()
call CheckLegacyAndVim9Failure(['call sort([11, 0z11], "N")'], 'E974:')
endfunc
" Tests for the blob2list() function
func Test_blob2list()
call assert_fails('let v = blob2list(10)', 'E1238: Blob required for argument 1')
eval 0zFFFF->blob2list()->assert_equal([255, 255])
let tests = [[0z0102, [1, 2]],
\ [0z00, [0]],
\ [0z, []],
\ [0z00000000, [0, 0, 0, 0]],
\ [0zAABB.CCDD, [170, 187, 204, 221]]]
for t in tests
call assert_equal(t[0]->blob2list(), t[1])
endfor
exe 'let v = 0z' .. repeat('000102030405060708090A0B0C0D0E0F', 64)
call assert_equal(1024, blob2list(v)->len())
call assert_equal([4, 8, 15], [v[100], v[1000], v[1023]])
call assert_equal([], blob2list(test_null_blob()))
endfunc
" Tests for the list2blob() function
func Test_list2blob()
call assert_fails('let b = list2blob(0z10)', 'E1211: List required for argument 1')
let tests = [[[1, 2], 0z0102],
\ [[0], 0z00],
\ [[], 0z],
\ [[0, 0, 0, 0], 0z00000000],
\ [[170, 187, 204, 221], 0zAABB.CCDD],
\ ]
for t in tests
call assert_equal(t[0]->list2blob(), t[1])
endfor
call assert_fails('let b = list2blob([1, []])', 'E745:')
call assert_fails('let b = list2blob([-1])', 'E1239:')
call assert_fails('let b = list2blob([256])', 'E1239:')
let b = range(16)->repeat(64)->list2blob()
call assert_equal(1024, b->len())
call assert_equal([4, 8, 15], [b[100], b[1000], b[1023]])
call assert_equal(0z, list2blob(test_null_list()))
endfunc
" vim: shiftwidth=2 sts=2 expandtab