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-rw-r--r--src/testdir/test_cursor_func.vim22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/testdir/test_cursor_func.vim b/src/testdir/test_cursor_func.vim
index 1c26f6d35e..d5f0ac7fa2 100644
--- a/src/testdir/test_cursor_func.vim
+++ b/src/testdir/test_cursor_func.vim
@@ -419,4 +419,26 @@ func Test_setcursorcharpos()
%bw!
endfunc
+" Test for virtcol2col()
+func Test_virtcol2col()
+ new
+ call setline(1, ["a\tb\tc"])
+ call assert_equal(1, virtcol2col(0, 1, 1))
+ call assert_equal(2, virtcol2col(0, 1, 2))
+ call assert_equal(2, virtcol2col(0, 1, 8))
+ call assert_equal(3, virtcol2col(0, 1, 9))
+ call assert_equal(4, virtcol2col(0, 1, 10))
+ call assert_equal(4, virtcol2col(0, 1, 16))
+ call assert_equal(5, virtcol2col(0, 1, 17))
+ call assert_equal(-1, virtcol2col(10, 1, 1))
+ call assert_equal(-1, virtcol2col(0, 10, 1))
+ call assert_equal(-1, virtcol2col(0, -1, 1))
+ call assert_equal(-1, virtcol2col(0, 1, -1))
+ call assert_equal(5, virtcol2col(0, 1, 20))
+ call assert_fails('echo virtcol2col("0", 1, 20)', 'E1210:')
+ call assert_fails('echo virtcol2col(0, "1", 20)', 'E1210:')
+ call assert_fails('echo virtcol2col(0, 1, "1")', 'E1210:')
+ bw!
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab