4ffe0401ee
Tests using random mutation generator should be provided with bot counter and non-counter mutations to ensure that both cases are sufficiently covered. However, mixed schemas (with both counter and non-counter columns) are not allowed so the RMG has to be explicitly told whether to use counter or non-counter schema.
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* Copyright (C) 2015 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "mutation_reader.hh"
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using populate_fn = std::function<mutation_source(schema_ptr s, const std::vector<mutation>&)>;
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// Must be run in a seastar thread
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void run_mutation_source_tests(populate_fn populate);
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enum are_equal { no, yes };
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// Calls the provided function on mutation pairs, equal and not equal. Is supposed
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// to exercise all potential ways two mutations may differ.
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void for_each_mutation_pair(std::function<void(const mutation&, const mutation&, are_equal)>);
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// Calls the provided function on mutations. Is supposed to exercise as many differences as possible.
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void for_each_mutation(std::function<void(const mutation&)>);
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// Returns true if mutations in schema s1 can be upgraded to s2.
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inline bool can_upgrade_schema(schema_ptr from, schema_ptr to) {
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return from->is_counter() == to->is_counter();
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}
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class random_mutation_generator {
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class impl;
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std::unique_ptr<impl> _impl;
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public:
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struct generate_counters_tag { };
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using generate_counters = bool_class<generate_counters_tag>;
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explicit random_mutation_generator(generate_counters);
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~random_mutation_generator();
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mutation operator()();
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schema_ptr schema() const;
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};
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bytes make_blob(size_t blob_size);
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