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small refactor of SMOVE and tests for SMOVE on sets with different encoding

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This commit is contained in:
Pieter Noordhuis 2010-06-13 11:16:18 +02:00
parent d0b58d5300
commit b978abbf02
2 changed files with 92 additions and 48 deletions
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51
redis.c
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@ -5694,37 +5694,46 @@ static void sremCommand(redisClient *c) {
}
static void smoveCommand(redisClient *c) {
robj *srcset, *dstset;
robj *srcset, *dstset, *ele;
srcset = lookupKeyWrite(c->db,c->argv[1]);
dstset = lookupKeyWrite(c->db,c->argv[2]);
ele = c->argv[3];
/* If the source key does not exist return 0, if it's of the wrong type
* raise an error */
if (srcset == NULL || srcset->type != REDIS_SET) {
addReply(c, srcset ? shared.wrongtypeerr : shared.czero);
return;
}
/* Error if the destination key is not a set as well */
if (dstset && dstset->type != REDIS_SET) {
addReply(c,shared.wrongtypeerr);
return;
}
/* Remove the element from the source set */
if (!setTypeRemove(srcset,c->argv[3])) {
/* Key not found in the src set! return zero */
/* If the source key does not exist return 0 */
if (srcset == NULL) {
addReply(c,shared.czero);
return;
}
if (setTypeSize(srcset) == 0 && srcset != dstset)
dbDelete(c->db,c->argv[1]);
/* If the source key has the wrong type, or the destination key
* is set and has the wrong type, return with an error. */
if (checkType(c,srcset,REDIS_SET) ||
(dstset && checkType(c,dstset,REDIS_SET))) return;
/* If srcset and dstset are equal, SMOVE is a no-op */
if (srcset == dstset) {
addReply(c,shared.cone);
return;
}
/* If the element cannot be removed from the src set, return 0. */
if (!setTypeRemove(srcset,ele)) {
addReply(c,shared.czero);
return;
}
/* Remove the src set from the database when empty */
if (setTypeSize(srcset) == 0) dbDelete(c->db,c->argv[1]);
server.dirty++;
/* Add the element to the destination set */
/* Create the destination set when it doesn't exist */
if (!dstset) {
dstset = setTypeCreate(c->argv[3]);
dstset = setTypeCreate(ele);
dbAdd(c->db,c->argv[2],dstset);
}
setTypeAdd(dstset,c->argv[3]);
/* An extra key has changed when ele was successfully added to dstset */
if (setTypeAdd(dstset,ele)) server.dirty++;
addReply(c,shared.cone);
}

89
tests/unit/type/set.tcl
View File

@ -180,38 +180,73 @@ start_server {tags {"set"}} {
}
}
test {SMOVE basics} {
r sadd myset1 a
r sadd myset1 b
r sadd myset1 c
r sadd myset2 x
r sadd myset2 y
r sadd myset2 z
r smove myset1 myset2 a
list [lsort [r smembers myset2]] [lsort [r smembers myset1]]
} {{a x y z} {b c}}
proc setup_move {} {
r del myset3 myset4
create_set myset1 {1 a b}
create_set myset2 {2 3 4}
assert_encoding hashtable myset1
assert_encoding intset myset2
}
test {SMOVE non existing key} {
list [r smove myset1 myset2 foo] [lsort [r smembers myset2]] [lsort [r smembers myset1]]
} {0 {a x y z} {b c}}
test "SMOVE basics - from regular set to intset" {
# move a non-integer element to an intset should convert encoding
setup_move
assert_equal 1 [r smove myset1 myset2 a]
assert_equal {1 b} [lsort [r smembers myset1]]
assert_equal {2 3 4 a} [lsort [r smembers myset2]]
assert_encoding hashtable myset2
test {SMOVE non existing src set} {
list [r smove noset myset2 foo] [lsort [r smembers myset2]]
} {0 {a x y z}}
# move an integer element should not convert the encoding
setup_move
assert_equal 1 [r smove myset1 myset2 1]
assert_equal {a b} [lsort [r smembers myset1]]
assert_equal {1 2 3 4} [lsort [r smembers myset2]]
assert_encoding intset myset2
}
test {SMOVE non existing dst set} {
list [r smove myset2 myset3 y] [lsort [r smembers myset2]] [lsort [r smembers myset3]]
} {1 {a x z} y}
test "SMOVE basics - from intset to regular set" {
setup_move
assert_equal 1 [r smove myset2 myset1 2]
assert_equal {1 2 a b} [lsort [r smembers myset1]]
assert_equal {3 4} [lsort [r smembers myset2]]
}
test {SMOVE wrong src key type} {
test "SMOVE non existing key" {
setup_move
assert_equal 0 [r smove myset1 myset2 foo]
assert_equal {1 a b} [lsort [r smembers myset1]]
assert_equal {2 3 4} [lsort [r smembers myset2]]
}
test "SMOVE non existing src set" {
setup_move
assert_equal 0 [r smove noset myset2 foo]
assert_equal {2 3 4} [lsort [r smembers myset2]]
}
test "SMOVE from regular set to non existing destination set" {
setup_move
assert_equal 1 [r smove myset1 myset3 a]
assert_equal {1 b} [lsort [r smembers myset1]]
assert_equal {a} [lsort [r smembers myset3]]
assert_encoding hashtable myset3
}
test "SMOVE from intset to non existing destination set" {
setup_move
assert_equal 1 [r smove myset2 myset3 2]
assert_equal {3 4} [lsort [r smembers myset2]]
assert_equal {2} [lsort [r smembers myset3]]
assert_encoding intset myset3
}
test "SMOVE wrong src key type" {
r set x 10
catch {r smove x myset2 foo} err
format $err
} {ERR*}
assert_error "ERR*wrong kind*" {r smove x myset2 foo}
}
test {SMOVE wrong dst key type} {
test "SMOVE wrong dst key type" {
r set x 10
catch {r smove myset2 x foo} err
format $err
} {ERR*}
assert_error "ERR*wrong kind*" {r smove myset2 x foo}
}
}