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fix behavior for out-of-range negative end index on ZREMRANGEBYRANK

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This commit is contained in:
Pieter Noordhuis 2010-06-15 16:21:42 +02:00
parent 184d74abc6
commit 4774a53b24
2 changed files with 35 additions and 11 deletions
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4
redis.c
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@ -6409,9 +6409,9 @@ static void zremrangebyrankCommand(redisClient *c) {
if (start < 0) start = llen+start;
if (end < 0) end = llen+end;
if (start < 0) start = 0;
if (end < 0) end = 0;
/* indexes sanity checks */
/* Invariant: start >= 0, so this test will be true when end < 0.
* The range is empty when start > end or start >= length. */
if (start > end || start >= llen) {
addReply(c,shared.czero);
return;

42
tests/unit/type/zset.tcl
View File

@ -1,4 +1,11 @@
start_server {tags {"zset"}} {
proc create_zset {key items} {
r del $key
foreach {score entry} $items {
r zadd $key $score $entry
}
}
test {ZSET basic ZADD and score update} {
r zadd ztmp 10 x
r zadd ztmp 20 y
@ -339,15 +346,32 @@ start_server {tags {"zset"}} {
list [r zremrangebyscore zset -inf +inf] [r zrange zset 0 -1]
} {5 {}}
test {ZREMRANGEBYRANK basics} {
r del zset
r zadd zset 1 a
r zadd zset 2 b
r zadd zset 3 c
r zadd zset 4 d
r zadd zset 5 e
list [r zremrangebyrank zset 1 3] [r zrange zset 0 -1]
} {3 {a e}}
test "ZREMRANGEBYRANK basics" {
proc remrangebyrank {min max} {
create_zset zset {1 a 2 b 3 c 4 d 5 e}
r zremrangebyrank zset $min $max
}
# inner range
assert_equal 3 [remrangebyrank 1 3]
assert_equal {a e} [r zrange zset 0 -1]
# start underflow
assert_equal 1 [remrangebyrank -10 0]
assert_equal {b c d e} [r zrange zset 0 -1]
# start overflow
assert_equal 0 [remrangebyrank 10 -1]
assert_equal {a b c d e} [r zrange zset 0 -1]
# end underflow
assert_equal 0 [remrangebyrank 0 -10]
assert_equal {a b c d e} [r zrange zset 0 -1]
# end overflow
assert_equal 5 [remrangebyrank 0 10]
assert_equal {} [r zrange zset 0 -1]
}
test {ZUNIONSTORE against non-existing key doesn't set destination} {
r del zseta