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b2ef08fd30
Signed-off-by: Lorenzo Fontana <lo@linux.com> Co-authored-by: Leonardo Di Donato <leodidonato@gmail.com>
84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
/*
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Copyright (C) 2016-2019 Draios Inc dba Sysdig.
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This file is part of falco.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include "token_bucket.h"
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#include <catch.hpp>
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using namespace Catch::literals;
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TEST_CASE("token bucket default ctor", "[token_bucket]")
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{
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auto tb = new token_bucket();
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REQUIRE(tb->get_tokens() == 1);
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SECTION("initialising with specific time, rate 2 tokens/sec")
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{
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auto max = 2.0;
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uint64_t now = 1;
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tb->init(1.0, max, now);
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REQUIRE(tb->get_last_seen() == now);
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REQUIRE(tb->get_tokens() == max);
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}
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}
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TEST_CASE("token bucket ctor with custom timer", "[token_bucket]")
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{
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auto t = []() -> uint64_t { return 22; };
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auto tb = new token_bucket(t);
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REQUIRE(tb->get_tokens() == 1);
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REQUIRE(tb->get_last_seen() == 22);
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}
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TEST_CASE("token bucket with 2 tokens/sec rate, max 10 tokens", "[token_bucket]")
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{
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auto tb = new token_bucket();
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tb->init(2.0, 10, 1);
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SECTION("claiming 5 tokens")
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{
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bool claimed = tb->claim(5, 1000000001);
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REQUIRE(tb->get_last_seen() == 1000000001);
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REQUIRE(tb->get_tokens() == 5.0_a);
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REQUIRE(claimed);
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SECTION("claiming all the 7 remaining tokens")
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{
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bool claimed = tb->claim(7, 2000000001);
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REQUIRE(tb->get_last_seen() == 2000000001);
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REQUIRE(tb->get_tokens() == 0.0_a);
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REQUIRE(claimed);
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SECTION("claiming 1 token more than the 2 available fails")
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{
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bool claimed = tb->claim(3, 3000000001);
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REQUIRE(tb->get_last_seen() == 3000000001);
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REQUIRE(tb->get_tokens() == 2.0_a);
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REQUIRE_FALSE(claimed);
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}
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}
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}
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}
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TEST_CASE("token bucket default initialization", "[token_bucket]")
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{
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token_bucket tb;
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REQUIRE(tb.get_tokens() == 1);
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}
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