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Diffstat (limited to 'indra/llcommon/tests/lldeadmantimer_test.cpp')
| -rw-r--r-- | indra/llcommon/tests/lldeadmantimer_test.cpp | 628 |
1 files changed, 628 insertions, 0 deletions
diff --git a/indra/llcommon/tests/lldeadmantimer_test.cpp b/indra/llcommon/tests/lldeadmantimer_test.cpp new file mode 100644 index 0000000000..7fd2dde6e0 --- /dev/null +++ b/indra/llcommon/tests/lldeadmantimer_test.cpp @@ -0,0 +1,628 @@ +/** + * @file lldeadmantimer_test.cpp + * @brief Tests for the LLDeadmanTimer class. + * + * $LicenseInfo:firstyear=2013&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2013, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +#include "../lldeadmantimer.h" +#include "../llsd.h" +#include "../lltimer.h" + +#include "../test/lltut.h" + +// Convert between floating point time deltas and U64 time deltas. +// Reflects an implementation detail inside lldeadmantimer.cpp + +static LLDeadmanTimer::time_type float_time_to_u64(F64 delta) +{ + return LLDeadmanTimer::time_type(delta * gClockFrequency); +} + +static F64 u64_time_to_float(LLDeadmanTimer::time_type delta) +{ + return delta * gClockFrequencyInv; +} + + +namespace tut +{ + +struct deadmantimer_test +{ + deadmantimer_test() + { + // LLTimer internals updating + update_clock_frequencies(); + } +}; + +typedef test_group<deadmantimer_test> deadmantimer_group_t; +typedef deadmantimer_group_t::object deadmantimer_object_t; +tut::deadmantimer_group_t deadmantimer_instance("LLDeadmanTimer"); + +// Basic construction test and isExpired() call +template<> template<> +void deadmantimer_object_t::test<1>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(10.0, false); + + ensure_equals("WOCM isExpired() returns false after ctor()", timer.isExpired(0, started, stopped, count), false); + ensure_approximately_equals("WOCM t1 - isExpired() does not modify started", started, F64(42.0), 2); + ensure_approximately_equals("WOCM t1 - isExpired() does not modify stopped", stopped, F64(97.0), 2); + ensure_equals("WOCM t1 - isExpired() does not modify count", count, U64L(8)); + } + + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(10.0, true); + + ensure_equals("WCM isExpired() returns false after ctor()", timer.isExpired(0, started, stopped, count, user_cpu, sys_cpu), false); + ensure_approximately_equals("WCM t1 - isExpired() does not modify started", started, F64(42.0), 2); + ensure_approximately_equals("WCM t1 - isExpired() does not modify stopped", stopped, F64(97.0), 2); + ensure_equals("WCM t1 - isExpired() does not modify count", count, U64L(8)); + ensure_equals("WCM t1 - isExpired() does not modify user_cpu", user_cpu, U64L(29000)); + ensure_equals("WCM t1 - isExpired() does not modify sys_cpu", sys_cpu, U64L(57000)); + } +} + + +// Construct with zero horizon - not useful generally but will be useful in testing +template<> template<> +void deadmantimer_object_t::test<2>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(0.0, false); // Zero is pre-expired + + ensure_equals("WOCM isExpired() still returns false with 0.0 time ctor()", + timer.isExpired(0, started, stopped, count), false); + } + + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(0.0, true); // Zero is pre-expired + + ensure_equals("WCM isExpired() still returns false with 0.0 time ctor()", + timer.isExpired(0, started, stopped, count, user_cpu, sys_cpu), false); + } +} + + +// "pre-expired" timer - starting a timer with a 0.0 horizon will result in +// expiration on first test. +template<> template<> +void deadmantimer_object_t::test<3>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(0.0, false); + + timer.start(0); + ensure_equals("WOCM isExpired() returns true with 0.0 horizon time", + timer.isExpired(0, started, stopped, count), true); + ensure_approximately_equals("WOCM expired timer with no bell ringing has stopped == started", started, stopped, 8); + } + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(0.0, true); + + timer.start(0); + ensure_equals("WCM isExpired() returns true with 0.0 horizon time", + timer.isExpired(0, started, stopped, count, user_cpu, sys_cpu), true); + ensure_approximately_equals("WCM expired timer with no bell ringing has stopped == started", started, stopped, 8); + } +} + + +// "pre-expired" timer - bell rings are ignored as we're already expired. +template<> template<> +void deadmantimer_object_t::test<4>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(0.0, false); + + timer.start(0); + timer.ringBell(LLDeadmanTimer::getNow() + float_time_to_u64(1000.0), 1); + ensure_equals("WOCM isExpired() returns true with 0.0 horizon time after bell ring", + timer.isExpired(0, started, stopped, count), true); + ensure_approximately_equals("WOCM ringBell has no impact on expired timer leaving stopped == started", started, stopped, 8); + } + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(0.0, true); + + timer.start(0); + timer.ringBell(LLDeadmanTimer::getNow() + float_time_to_u64(1000.0), 1); + ensure_equals("WCM isExpired() returns true with 0.0 horizon time after bell ring", + timer.isExpired(0, started, stopped, count, user_cpu, sys_cpu), true); + ensure_approximately_equals("WCM ringBell has no impact on expired timer leaving stopped == started", started, stopped, 8); + } +} + + +// start(0) test - unexpired timer reports unexpired +template<> template<> +void deadmantimer_object_t::test<5>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(10.0, false); + + timer.start(0); + ensure_equals("WOCM isExpired() returns false after starting with 10.0 horizon time", + timer.isExpired(0, started, stopped, count), false); + ensure_approximately_equals("WOCM t5 - isExpired() does not modify started", started, F64(42.0), 2); + ensure_approximately_equals("WOCM t5 - isExpired() does not modify stopped", stopped, F64(97.0), 2); + ensure_equals("WOCM t5 - isExpired() does not modify count", count, U64L(8)); + } + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(10.0, true); + + timer.start(0); + ensure_equals("WCM isExpired() returns false after starting with 10.0 horizon time", + timer.isExpired(0, started, stopped, count, user_cpu, sys_cpu), false); + ensure_approximately_equals("WCM t5 - isExpired() does not modify started", started, F64(42.0), 2); + ensure_approximately_equals("WCM t5 - isExpired() does not modify stopped", stopped, F64(97.0), 2); + ensure_equals("WCM t5 - isExpired() does not modify count", count, U64L(8)); + ensure_equals("WCM t5 - isExpired() does not modify user_cpu", user_cpu, U64L(29000)); + ensure_equals("WCM t5 - isExpired() does not modify sys_cpu", sys_cpu, U64L(57000)); + } +} + + +// start() test - start in the past but not beyond 1 horizon +template<> template<> +void deadmantimer_object_t::test<6>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(10.0, false); + + // Would like to do subtraction on current time but can't because + // the implementation on Windows is zero-based. We wrap around + // the backside resulting in a large U64 number. + + LLDeadmanTimer::time_type the_past(LLDeadmanTimer::getNow()); + LLDeadmanTimer::time_type now(the_past + float_time_to_u64(5.0)); + timer.start(the_past); + ensure_equals("WOCM t6 - isExpired() returns false with 10.0 horizon time starting 5.0 in past", + timer.isExpired(now, started, stopped, count), false); + ensure_approximately_equals("WOCM t6 - isExpired() does not modify started", started, F64(42.0), 2); + ensure_approximately_equals("WOCM t6 - isExpired() does not modify stopped", stopped, F64(97.0), 2); + ensure_equals("WOCM t6 - isExpired() does not modify count", count, U64L(8)); + } + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(10.0, true); + + // Would like to do subtraction on current time but can't because + // the implementation on Windows is zero-based. We wrap around + // the backside resulting in a large U64 number. + + LLDeadmanTimer::time_type the_past(LLDeadmanTimer::getNow()); + LLDeadmanTimer::time_type now(the_past + float_time_to_u64(5.0)); + timer.start(the_past); + ensure_equals("WCM t6 - isExpired() returns false with 10.0 horizon time starting 5.0 in past", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), false); + ensure_approximately_equals("WCM t6 - isExpired() does not modify started", started, F64(42.0), 2); + ensure_approximately_equals("WCM t6 - isExpired() does not modify stopped", stopped, F64(97.0), 2); + ensure_equals("t6 - isExpired() does not modify count", count, U64L(8)); + ensure_equals("WCM t6 - isExpired() does not modify user_cpu", user_cpu, U64L(29000)); + ensure_equals("WCM t6 - isExpired() does not modify sys_cpu", sys_cpu, U64L(57000)); + } +} + + +// start() test - start in the past but well beyond 1 horizon +template<> template<> +void deadmantimer_object_t::test<7>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(10.0, false); + + // Would like to do subtraction on current time but can't because + // the implementation on Windows is zero-based. We wrap around + // the backside resulting in a large U64 number. + + LLDeadmanTimer::time_type the_past(LLDeadmanTimer::getNow()); + LLDeadmanTimer::time_type now(the_past + float_time_to_u64(20.0)); + timer.start(the_past); + ensure_equals("WOCM t7 - isExpired() returns true with 10.0 horizon time starting 20.0 in past", + timer.isExpired(now,started, stopped, count), true); + ensure_approximately_equals("WOCM t7 - starting before horizon still gives equal started / stopped", started, stopped, 8); + } + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(10.0, true); + + // Would like to do subtraction on current time but can't because + // the implementation on Windows is zero-based. We wrap around + // the backside resulting in a large U64 number. + + LLDeadmanTimer::time_type the_past(LLDeadmanTimer::getNow()); + LLDeadmanTimer::time_type now(the_past + float_time_to_u64(20.0)); + timer.start(the_past); + ensure_equals("WCM t7 - isExpired() returns true with 10.0 horizon time starting 20.0 in past", + timer.isExpired(now,started, stopped, count, user_cpu, sys_cpu), true); + ensure_approximately_equals("WOCM t7 - starting before horizon still gives equal started / stopped", started, stopped, 8); + } +} + + +// isExpired() test - results are read-once. Probes after first true are false. +template<> template<> +void deadmantimer_object_t::test<8>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(10.0, false); + + // Would like to do subtraction on current time but can't because + // the implementation on Windows is zero-based. We wrap around + // the backside resulting in a large U64 number. + + LLDeadmanTimer::time_type the_past(LLDeadmanTimer::getNow()); + LLDeadmanTimer::time_type now(the_past + float_time_to_u64(20.0)); + timer.start(the_past); + ensure_equals("WOCM t8 - isExpired() returns true with 10.0 horizon time starting 20.0 in past", + timer.isExpired(now, started, stopped, count), true); + + started = 42.0; + stopped = 97.0; + count = U64L(8); + ensure_equals("WOCM t8 - second isExpired() returns false after true", + timer.isExpired(now, started, stopped, count), false); + ensure_approximately_equals("WOCM t8 - 2nd isExpired() does not modify started", started, F64(42.0), 2); + ensure_approximately_equals("WOCM t8 - 2nd isExpired() does not modify stopped", stopped, F64(97.0), 2); + ensure_equals("WOCM t8 - 2nd isExpired() does not modify count", count, U64L(8)); + } + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(10.0, true); + + // Would like to do subtraction on current time but can't because + // the implementation on Windows is zero-based. We wrap around + // the backside resulting in a large U64 number. + + LLDeadmanTimer::time_type the_past(LLDeadmanTimer::getNow()); + LLDeadmanTimer::time_type now(the_past + float_time_to_u64(20.0)); + timer.start(the_past); + ensure_equals("WCM t8 - isExpired() returns true with 10.0 horizon time starting 20.0 in past", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), true); + + started = 42.0; + stopped = 97.0; + count = U64L(8); + user_cpu = 29000; + sys_cpu = 57000; + ensure_equals("WCM t8 - second isExpired() returns false after true", + timer.isExpired(now, started, stopped, count), false); + ensure_approximately_equals("WCM t8 - 2nd isExpired() does not modify started", started, F64(42.0), 2); + ensure_approximately_equals("WCM t8 - 2nd isExpired() does not modify stopped", stopped, F64(97.0), 2); + ensure_equals("WCM t8 - 2nd isExpired() does not modify count", count, U64L(8)); + ensure_equals("WCM t8 - 2nd isExpired() does not modify user_cpu", user_cpu, U64L(29000)); + ensure_equals("WCM t8 - 2nd isExpired() does not modify sys_cpu", sys_cpu, U64L(57000)); + } +} + + +// ringBell() test - see that we can keep a timer from expiring +template<> template<> +void deadmantimer_object_t::test<9>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(5.0, false); + + LLDeadmanTimer::time_type now(LLDeadmanTimer::getNow()); + F64 real_start(u64_time_to_float(now)); + timer.start(0); + + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + ensure_equals("WOCM t9 - 5.0 horizon timer has not timed out after 10 1-second bell rings", + timer.isExpired(now, started, stopped, count), false); + F64 last_good_ring(u64_time_to_float(now)); + + // Jump forward and expire + now += float_time_to_u64(10.0); + ensure_equals("WOCM t9 - 5.0 horizon timer expires on 10-second jump", + timer.isExpired(now, started, stopped, count), true); + ensure_approximately_equals("WOCM t9 - started matches start() time", started, real_start, 4); + ensure_approximately_equals("WOCM t9 - stopped matches last ringBell() time", stopped, last_good_ring, 4); + ensure_equals("WOCM t9 - 10 good ringBell()s", count, U64L(10)); + ensure_equals("WOCM t9 - single read only", timer.isExpired(now, started, stopped, count), false); + } + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + LLDeadmanTimer timer(5.0, true); + + LLDeadmanTimer::time_type now(LLDeadmanTimer::getNow()); + F64 real_start(u64_time_to_float(now)); + timer.start(0); + + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + ensure_equals("WCM t9 - 5.0 horizon timer has not timed out after 10 1-second bell rings", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), false); + F64 last_good_ring(u64_time_to_float(now)); + + // Jump forward and expire + now += float_time_to_u64(10.0); + ensure_equals("WCM t9 - 5.0 horizon timer expires on 10-second jump", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), true); + ensure_approximately_equals("WCM t9 - started matches start() time", started, real_start, 4); + ensure_approximately_equals("WCM t9 - stopped matches last ringBell() time", stopped, last_good_ring, 4); + ensure_equals("WCM t9 - 10 good ringBell()s", count, U64L(10)); + ensure_equals("WCM t9 - single read only", timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), false); + } +} + + +// restart after expiration test - verify that restarts behave well +template<> template<> +void deadmantimer_object_t::test<10>() +{ + { + // Without cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)); + LLDeadmanTimer timer(5.0, false); + + LLDeadmanTimer::time_type now(LLDeadmanTimer::getNow()); + F64 real_start(u64_time_to_float(now)); + timer.start(0); + + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + ensure_equals("WOCM t10 - 5.0 horizon timer has not timed out after 10 1-second bell rings", + timer.isExpired(now, started, stopped, count), false); + F64 last_good_ring(u64_time_to_float(now)); + + // Jump forward and expire + now += float_time_to_u64(10.0); + ensure_equals("WOCM t10 - 5.0 horizon timer expires on 10-second jump", + timer.isExpired(now, started, stopped, count), true); + ensure_approximately_equals("WOCM t10 - started matches start() time", started, real_start, 4); + ensure_approximately_equals("WOCM t10 - stopped matches last ringBell() time", stopped, last_good_ring, 4); + ensure_equals("WOCM t10 - 10 good ringBell()s", count, U64L(10)); + ensure_equals("WOCM t10 - single read only", timer.isExpired(now, started, stopped, count), false); + + // Jump forward and restart + now += float_time_to_u64(1.0); + real_start = u64_time_to_float(now); + timer.start(now); + + // Run a modified bell ring sequence + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + ensure_equals("WOCM t10 - 5.0 horizon timer has not timed out after 8 1-second bell rings", + timer.isExpired(now, started, stopped, count), false); + last_good_ring = u64_time_to_float(now); + + // Jump forward and expire + now += float_time_to_u64(10.0); + ensure_equals("WOCM t10 - 5.0 horizon timer expires on 8-second jump", + timer.isExpired(now, started, stopped, count), true); + ensure_approximately_equals("WOCM t10 - 2nd started matches start() time", started, real_start, 4); + ensure_approximately_equals("WOCM t10 - 2nd stopped matches last ringBell() time", stopped, last_good_ring, 4); + ensure_equals("WOCM t10 - 8 good ringBell()s", count, U64L(8)); + ensure_equals("WOCM t10 - single read only - 2nd start", + timer.isExpired(now, started, stopped, count), false); + } + { + // With cpu metrics + F64 started(42.0), stopped(97.0); + U64 count(U64L(8)), user_cpu(29000), sys_cpu(57000); + + LLDeadmanTimer timer(5.0, true); + + LLDeadmanTimer::time_type now(LLDeadmanTimer::getNow()); + F64 real_start(u64_time_to_float(now)); + timer.start(0); + + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + ensure_equals("WCM t10 - 5.0 horizon timer has not timed out after 10 1-second bell rings", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), false); + F64 last_good_ring(u64_time_to_float(now)); + + // Jump forward and expire + now += float_time_to_u64(10.0); + ensure_equals("WCM t10 - 5.0 horizon timer expires on 10-second jump", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), true); + ensure_approximately_equals("WCM t10 - started matches start() time", started, real_start, 4); + ensure_approximately_equals("WCM t10 - stopped matches last ringBell() time", stopped, last_good_ring, 4); + ensure_equals("WCM t10 - 10 good ringBell()s", count, U64L(10)); + ensure_equals("WCM t10 - single read only", timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), false); + + // Jump forward and restart + now += float_time_to_u64(1.0); + real_start = u64_time_to_float(now); + timer.start(now); + + // Run a modified bell ring sequence + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + now += float_time_to_u64(1.0); + timer.ringBell(now, 1); + ensure_equals("WCM t10 - 5.0 horizon timer has not timed out after 8 1-second bell rings", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), false); + last_good_ring = u64_time_to_float(now); + + // Jump forward and expire + now += float_time_to_u64(10.0); + ensure_equals("WCM t10 - 5.0 horizon timer expires on 8-second jump", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), true); + ensure_approximately_equals("WCM t10 - 2nd started matches start() time", started, real_start, 4); + ensure_approximately_equals("WCM t10 - 2nd stopped matches last ringBell() time", stopped, last_good_ring, 4); + ensure_equals("WCM t10 - 8 good ringBell()s", count, U64L(8)); + ensure_equals("WCM t10 - single read only - 2nd start", + timer.isExpired(now, started, stopped, count, user_cpu, sys_cpu), false); + } +} + + + +} // end namespace tut |