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set testmodule [file normalize tests/modules/stream.so]
start_server {tags {"modules"}} {
r module load $testmodule
test {Module stream add and delete} {
r del mystream
# add to empty key
set streamid1 [r stream.add mystream item 1 value a]
# add to existing stream
set streamid2 [r stream.add mystream item 2 value b]
# check result
assert { [string match "*-*" $streamid1] }
set items [r XRANGE mystream - +]
assert_equal $items \
"{$streamid1 {item 1 value a}} {$streamid2 {item 2 value b}}"
# delete one of them and try deleting non-existing ID
assert_equal OK [r stream.delete mystream $streamid1]
assert_error "ERR StreamDelete*" {r stream.delete mystream 123-456}
assert_error "Invalid stream ID*" {r stream.delete mystream foo}
assert_equal "{$streamid2 {item 2 value b}}" [r XRANGE mystream - +]
# check error condition: wrong type
r del mystream
r set mystream mystring
assert_error "ERR StreamAdd*" {r stream.add mystream item 1 value a}
assert_error "ERR StreamDelete*" {r stream.delete mystream 123-456}
}
test {Module stream add unblocks blocking xread} {
r del mystream
# Blocking XREAD on an empty key
set rd1 [redis_deferring_client]
$rd1 XREAD BLOCK 3000 STREAMS mystream $
# wait until client is actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Client is not blocked"
}
set id [r stream.add mystream field 1 value a]
assert_equal "{mystream {{$id {field 1 value a}}}}" [$rd1 read]
# Blocking XREAD on an existing stream
set rd2 [redis_deferring_client]
$rd2 XREAD BLOCK 3000 STREAMS mystream $
# wait until client is actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Client is not blocked"
}
set id [r stream.add mystream field 2 value b]
assert_equal "{mystream {{$id {field 2 value b}}}}" [$rd2 read]
}
test {Module stream add benchmark (1M stream add)} {
set n 1000000
r del mystream
set result [r stream.addn mystream $n field value]
assert_equal $result $n
}
test {Module stream iterator} {
r del mystream
set streamid1 [r xadd mystream * item 1 value a]
set streamid2 [r xadd mystream * item 2 value b]
# range result
set result1 [r stream.range mystream "-" "+"]
set expect1 [r xrange mystream "-" "+"]
assert_equal $result1 $expect1
# reverse range
set result_rev [r stream.range mystream "+" "-"]
set expect_rev [r xrevrange mystream "+" "-"]
assert_equal $result_rev $expect_rev
# only one item: range with startid = endid
set result2 [r stream.range mystream "-" $streamid1]
assert_equal $result2 "{$streamid1 {item 1 value a}}"
assert_equal $result2 [list [list $streamid1 {item 1 value a}]]
# only one item: range with startid = endid
set result3 [r stream.range mystream $streamid2 $streamid2]
assert_equal $result3 "{$streamid2 {item 2 value b}}"
assert_equal $result3 [list [list $streamid2 {item 2 value b}]]
}
test {Module stream iterator delete} {
r del mystream
set id1 [r xadd mystream * normal item]
set id2 [r xadd mystream * selfdestruct yes]
set id3 [r xadd mystream * another item]
# stream.range deletes the "selfdestruct" item after returning it
assert_equal \
"{$id1 {normal item}} {$id2 {selfdestruct yes}} {$id3 {another item}}" \
[r stream.range mystream - +]
# now, the "selfdestruct" item is gone
assert_equal \
"{$id1 {normal item}} {$id3 {another item}}" \
[r stream.range mystream - +]
}
test {Module stream trim by length} {
r del mystream
# exact maxlen
r xadd mystream * item 1 value a
r xadd mystream * item 2 value b
r xadd mystream * item 3 value c
assert_equal 3 [r xlen mystream]
assert_equal 0 [r stream.trim mystream maxlen = 5]
assert_equal 3 [r xlen mystream]
assert_equal 2 [r stream.trim mystream maxlen = 1]
assert_equal 1 [r xlen mystream]
assert_equal 1 [r stream.trim mystream maxlen = 0]
# check that there is no limit for exact maxlen
r stream.addn mystream 20000 item x value y
assert_equal 20000 [r stream.trim mystream maxlen = 0]
# approx maxlen (100 items per node implies default limit 10K items)
r stream.addn mystream 20000 item x value y
assert_equal 20000 [r xlen mystream]
assert_equal 10000 [r stream.trim mystream maxlen ~ 2]
assert_equal 9900 [r stream.trim mystream maxlen ~ 2]
assert_equal 0 [r stream.trim mystream maxlen ~ 2]
assert_equal 100 [r xlen mystream]
assert_equal 100 [r stream.trim mystream maxlen ~ 0]
assert_equal 0 [r xlen mystream]
}
test {Module stream trim by ID} {
r del mystream
# exact minid
r xadd mystream * item 1 value a
r xadd mystream * item 2 value b
set minid [r xadd mystream * item 3 value c]
assert_equal 3 [r xlen mystream]
assert_equal 0 [r stream.trim mystream minid = -]
assert_equal 3 [r xlen mystream]
assert_equal 2 [r stream.trim mystream minid = $minid]
assert_equal 1 [r xlen mystream]
assert_equal 1 [r stream.trim mystream minid = +]
# check that there is no limit for exact minid
r stream.addn mystream 20000 item x value y
assert_equal 20000 [r stream.trim mystream minid = +]
# approx minid (100 items per node implies default limit 10K items)
r stream.addn mystream 19980 item x value y
set minid [r xadd mystream * item x value y]
r stream.addn mystream 19 item x value y
assert_equal 20000 [r xlen mystream]
assert_equal 10000 [r stream.trim mystream minid ~ $minid]
assert_equal 9900 [r stream.trim mystream minid ~ $minid]
assert_equal 0 [r stream.trim mystream minid ~ $minid]
assert_equal 100 [r xlen mystream]
assert_equal 100 [r stream.trim mystream minid ~ +]
assert_equal 0 [r xlen mystream]
}
test "Unload the module - stream" {
assert_equal {OK} [r module unload stream]
}
}
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