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Implement dynamic chunk size, set_chunk_size().

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This commit is contained in:
Daniel Nichter
2011-09-12 07:32:19 -06:00
parent 0bb4497fbe
commit 3ed822e8e6
2 changed files with 102 additions and 18 deletions
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32
t/lib/NibbleIterator.t
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@@ -39,7 +39,7 @@ if ( !$dbh ) {
plan skip_all => 'Cannot connect to sandbox master';
}
else {
plan tests => 18;
plan tests => 19;
}
my $q = new Quoter();
@@ -403,6 +403,36 @@ SKIP: {
);
}
# ############################################################################
# Reset chunk size on-the-fly.
# ############################################################################
$ni = make_nibble_iter(
sql_file => "a-z.sql",
db => 'test',
tbl => 't',
argv => [qw(--databases test --chunk-size 5)],
);
@rows = ();
my $i = 0;
while (my $row = $ni->next()) {
push @{$rows[$ni->nibble_number()]}, @$row;
if ( ++$i == 5 ) {
$ni->set_chunk_size(20);
}
}
is_deeply(
\@rows,
[
undef, # no 0 nibble
[ ('a'..'e') ], # nibble 1
[ ('f'..'y') ], # nibble 2, should contain 20 chars
[ 'z' ], # last nibble
],
"Change chunk size while nibbling"
) or print STDERR Dumper(\@rows);
# #############################################################################
# Done.
# #############################################################################