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PFCOUNT multi-key test added.

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This commit is contained in:
antirez 2014-04-18 12:36:33 +02:00
parent 5eb7ac0c92
commit 85a2f2354e
1 changed files with 15 additions and 0 deletions
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15
tests/unit/hyperloglog.tcl
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@ -136,6 +136,21 @@ start_server {tags {"hll"}} {
r pfcount hll r pfcount hll
} {5} } {5}
test {PFCOUNT multiple-keys merge returns cardinality of union} {
r del hll1 hll2 hll3
for {set x 1} {$x < 10000} {incr x} {
# Force dense representation of hll2
r pfadd hll1 "foo-$x"
r pfadd hll2 "bar-$x"
r pfadd hll3 "zap-$x"
set card [r pfcount hll1 hll2 hll3]
set realcard [expr {$x*3}]
set err [expr {abs($card-$realcard)}]
assert {$err < (double($card)/100)*5}
}
}
test {PFDEBUG GETREG returns the HyperLogLog raw registers} { test {PFDEBUG GETREG returns the HyperLogLog raw registers} {
r del hll r del hll
r pfadd hll 1 2 3 r pfadd hll 1 2 3