Files
scylladb/tests/streamed_mutation_test.cc
Paweł Dziepak c5662919df tests/streamed_mutation: test hashing
Signed-off-by: Paweł Dziepak <pdziepak@scylladb.com>
2016-07-13 09:51:23 +01:00

251 lines
9.2 KiB
C++

/*
* Copyright (C) 2016 ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#define BOOST_TEST_DYN_LINK
#include <seastar/core/thread.hh>
#include <seastar/tests/test-utils.hh>
#include "mutation_source_test.hh"
#include "streamed_mutation.hh"
#include "frozen_mutation.hh"
#include "tests/test_services.hh"
#include "schema_builder.hh"
#include "disk-error-handler.hh"
thread_local disk_error_signal_type commit_error;
thread_local disk_error_signal_type general_disk_error;
void check_order_of_fragments(streamed_mutation sm)
{
stdx::optional<position_in_partition> previous;
position_in_partition::less_compare cmp(*sm.schema());
auto mf = sm().get0();
while (mf) {
if (previous) {
BOOST_REQUIRE(cmp(*previous, *mf));
}
previous = mf->position();
mf = sm().get0();
}
}
SEASTAR_TEST_CASE(test_mutation_from_streamed_mutation_from_mutation) {
return seastar::async([] {
for_each_mutation([&] (const mutation& m) {
auto get_sm = [&] {
return streamed_mutation_from_mutation(mutation(m));
};
check_order_of_fragments(get_sm());
auto mopt = mutation_from_streamed_mutation(get_sm()).get0();
BOOST_REQUIRE(mopt);
BOOST_REQUIRE_EQUAL(m, *mopt);
});
});
}
SEASTAR_TEST_CASE(test_mutation_merger) {
return seastar::async([] {
for_each_mutation_pair([&] (const mutation& m1, const mutation& m2, are_equal) {
if (m1.schema()->version() != m2.schema()->version()) {
return;
}
auto m12 = m1;
m12.apply(m2);
auto get_sm = [&] {
std::vector<streamed_mutation> sms;
sms.emplace_back(streamed_mutation_from_mutation(mutation(m1)));
sms.emplace_back(streamed_mutation_from_mutation(mutation(m2.schema(), m1.decorated_key(), m2.partition())));
return merge_mutations(std::move(sms));
};
check_order_of_fragments(get_sm());
auto mopt = mutation_from_streamed_mutation(get_sm()).get0();
BOOST_REQUIRE(mopt);
BOOST_REQUIRE(m12.partition().difference(m1.schema(), mopt->partition()).empty());
BOOST_REQUIRE(mopt->partition().difference(m1.schema(), m12.partition()).empty());
});
});
}
SEASTAR_TEST_CASE(test_freezing_streamed_mutations) {
return seastar::async([] {
storage_service_for_tests ssft;
for_each_mutation([&] (const mutation& m) {
auto fm = freeze(streamed_mutation_from_mutation(mutation(m))).get0();
auto m1 = fm.unfreeze(m.schema());
BOOST_REQUIRE_EQUAL(m, m1);
auto fm1 = freeze(m);
BOOST_REQUIRE(fm.representation() == fm1.representation());
});
});
}
SEASTAR_TEST_CASE(test_fragmenting_and_freezing_streamed_mutations) {
return seastar::async([] {
storage_service_for_tests ssft;
for_each_mutation([&] (const mutation& m) {
std::vector<frozen_mutation> fms;
fragment_and_freeze(streamed_mutation_from_mutation(mutation(m)), [&] (auto fm, bool frag) {
BOOST_REQUIRE(!frag);
fms.emplace_back(std::move(fm));
return make_ready_future<>();
}, std::numeric_limits<size_t>::max()).get0();
BOOST_REQUIRE_EQUAL(fms.size(), 1);
auto m1 = fms.back().unfreeze(m.schema());
BOOST_REQUIRE_EQUAL(m, m1);
fms.clear();
stdx::optional<bool> fragmented;
fragment_and_freeze(streamed_mutation_from_mutation(mutation(m)), [&] (auto fm, bool frag) {
BOOST_REQUIRE(!fragmented || *fragmented == frag);
*fragmented = frag;
fms.emplace_back(std::move(fm));
return make_ready_future<>();
}, 1).get0();
auto expected_fragments = m.partition().clustered_rows().size()
+ m.partition().row_tombstones().size()
+ !m.partition().static_row().empty();
BOOST_REQUIRE_EQUAL(fms.size(), std::max(expected_fragments, size_t(1)));
BOOST_REQUIRE(expected_fragments < 2 || *fragmented);
auto m2 = fms.back().unfreeze(m.schema());
fms.pop_back();
while (!fms.empty()) {
m2.partition().apply(*m.schema(), fms.back().partition(), *m.schema());
fms.pop_back();
}
BOOST_REQUIRE_EQUAL(m, m2);
});
});
}
SEASTAR_TEST_CASE(test_range_tombstones_stream) {
return seastar::async([] {
auto s = schema_builder("ks", "cf")
.with_column("pk", int32_type, column_kind::partition_key)
.with_column("ck1", int32_type, column_kind::clustering_key)
.with_column("ck2", int32_type, column_kind::clustering_key)
.with_column("r", int32_type)
.build();
auto pk = partition_key::from_single_value(*s, int32_type->decompose(0));
auto create_ck = [&] (std::vector<int> v) {
std::vector<bytes> vs;
boost::transform(v, std::back_inserter(vs), [] (int x) { return int32_type->decompose(x); });
return clustering_key_prefix::from_exploded(*s, std::move(vs));
};
tombstone t0(0, { });
tombstone t1(1, { });
auto rt1 = range_tombstone(create_ck({ 1 }), t0, bound_kind::incl_start, create_ck({ 1, 3 }), bound_kind::incl_end);
auto rt2 = range_tombstone(create_ck({ 1, 1 }), t1, bound_kind::incl_start, create_ck({ 1, 3 }), bound_kind::excl_end);
auto rt3 = range_tombstone(create_ck({ 1, 1 }), t0, bound_kind::incl_start, create_ck({ 2 }), bound_kind::incl_end);
auto rt4 = range_tombstone(create_ck({ 2 }), t0, bound_kind::excl_start, create_ck({ 2, 2 }), bound_kind::incl_end);
mutation_fragment cr1 = clustering_row(create_ck({ 0, 0 }));
mutation_fragment cr2 = clustering_row(create_ck({ 1, 0 }));
mutation_fragment cr3 = clustering_row(create_ck({ 1, 1 }));
auto cr4 = rows_entry(create_ck({ 1, 2 }));
auto cr5 = rows_entry(create_ck({ 1, 3 }));
range_tombstone_stream rts(*s);
rts.apply(range_tombstone(rt1));
rts.apply(range_tombstone(rt2));
rts.apply(range_tombstone(rt4));
mutation_fragment_opt mf = rts.get_next(cr1);
BOOST_REQUIRE(!mf);
mf = rts.get_next(cr2);
BOOST_REQUIRE(mf && mf->is_range_tombstone());
auto expected1 = range_tombstone(create_ck({ 1 }), t0, bound_kind::incl_start, create_ck({ 1, 1 }), bound_kind::excl_end);
BOOST_REQUIRE(mf->as_range_tombstone().equal(*s, expected1));
mf = rts.get_next(cr2);
BOOST_REQUIRE(!mf);
mf = rts.get_next(mutation_fragment(range_tombstone(rt3)));
BOOST_REQUIRE(mf && mf->is_range_tombstone());
BOOST_REQUIRE(mf->as_range_tombstone().equal(*s, rt2));
mf = rts.get_next(cr3);
BOOST_REQUIRE(!mf);
mf = rts.get_next(cr4);
BOOST_REQUIRE(!mf);
mf = rts.get_next(cr5);
BOOST_REQUIRE(mf && mf->is_range_tombstone());
auto expected2 = range_tombstone(create_ck({ 1, 3 }), t0, bound_kind::incl_start, create_ck({ 1, 3 }), bound_kind::incl_end);
BOOST_REQUIRE(mf->as_range_tombstone().equal(*s, expected2));
mf = rts.get_next();
BOOST_REQUIRE(mf && mf->is_range_tombstone());
BOOST_REQUIRE(mf->as_range_tombstone().equal(*s, rt4));
mf = rts.get_next();
BOOST_REQUIRE(!mf);
});
}
SEASTAR_TEST_CASE(test_mutation_hash) {
return seastar::async([] {
for_each_mutation_pair([] (auto&& m1, auto&& m2, are_equal eq) {
auto get_hash = [] (streamed_mutation m) {
md5_hasher h;
m.key().feed_hash(h, *m.schema());
mutation_hasher<md5_hasher> mh(*m.schema(), h);
consume(m, std::move(mh)).get0();
return h.finalize();
};
auto h1 = get_hash(streamed_mutation_from_mutation(mutation(m1)));
auto h2 = get_hash(streamed_mutation_from_mutation(mutation(m2)));
if (eq) {
if (h1 != h2) {
BOOST_FAIL(sprint("Hash should be equal for %s and %s", m1, m2));
}
} else {
// We're using a strong hasher, collision should be unlikely
if (h1 == h2) {
BOOST_FAIL(sprint("Hash should be different for %s and %s", m1, m2));
}
}
});
});
}