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+/**
+ * @file llsimplestats_test.cpp
+ * @date 2010-10-22
+ * @brief Test cases for some of llsimplestat.h
+ *
+ * $LicenseInfo:firstyear=2010&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, 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 <tut/tut.hpp>
+
+#include "lltut.h"
+#include "../llsimplestat.h"
+#include "llsd.h"
+#include "llmath.h"
+
+// @brief Used as a pointer cast type to get access to LLSimpleStatCounter
+class TutStatCounter: public LLSimpleStatCounter
+{
+public:
+ TutStatCounter(); // Not defined
+ ~TutStatCounter(); // Not defined
+ void operator=(const TutStatCounter &); // Not defined
+
+ void setRawCount(U32 c) { mCount = c; }
+ U32 getRawCount() const { return mCount; }
+};
+
+
+namespace tut
+{
+ struct stat_counter_index
+ {};
+ typedef test_group<stat_counter_index> stat_counter_index_t;
+ typedef stat_counter_index_t::object stat_counter_index_object_t;
+ tut::stat_counter_index_t tut_stat_counter_index("stat_counter_test");
+
+ // Testing LLSimpleStatCounter's external interface
+ template<> template<>
+ void stat_counter_index_object_t::test<1>()
+ {
+ LLSimpleStatCounter c1;
+ ensure("Initialized counter is zero", (0 == c1.getCount()));
+
+ ensure("Counter increment return is 1", (1 == ++c1));
+ ensure("Counter increment return is 2", (2 == ++c1));
+
+ ensure("Current counter is 2", (2 == c1.getCount()));
+
+ c1.reset();
+ ensure("Counter is 0 after reset", (0 == c1.getCount()));
+
+ ensure("Counter increment return is 1", (1 == ++c1));
+ }
+
+ // Testing LLSimpleStatCounter's internal state
+ template<> template<>
+ void stat_counter_index_object_t::test<2>()
+ {
+ LLSimpleStatCounter c1;
+ TutStatCounter * tc1 = (TutStatCounter *) &c1;
+
+ ensure("Initialized private counter is zero", (0 == tc1->getRawCount()));
+
+ ++c1;
+ ++c1;
+
+ ensure("Current private counter is 2", (2 == tc1->getRawCount()));
+
+ c1.reset();
+ ensure("Raw counter is 0 after reset", (0 == tc1->getRawCount()));
+ }
+
+ // Testing LLSimpleStatCounter's wrapping behavior
+ template<> template<>
+ void stat_counter_index_object_t::test<3>()
+ {
+ LLSimpleStatCounter c1;
+ TutStatCounter * tc1 = (TutStatCounter *) &c1;
+
+ tc1->setRawCount(U32_MAX);
+ ensure("Initialized private counter is zero", (U32_MAX == c1.getCount()));
+
+ ensure("Increment of max value wraps to 0", (0 == ++c1));
+ }
+
+ // Testing LLSimpleStatMMM's external behavior
+ template<> template<>
+ void stat_counter_index_object_t::test<4>()
+ {
+ LLSimpleStatMMM<> m1;
+ typedef LLSimpleStatMMM<>::Value lcl_float;
+ lcl_float zero(0);
+
+ // Freshly-constructed
+ ensure("Constructed MMM<> has 0 count", (0 == m1.getCount()));
+ ensure("Constructed MMM<> has 0 min", (zero == m1.getMin()));
+ ensure("Constructed MMM<> has 0 max", (zero == m1.getMax()));
+ ensure("Constructed MMM<> has 0 mean no div-by-zero", (zero == m1.getMean()));
+
+ // Single insert
+ m1.record(1.0);
+ ensure("Single insert MMM<> has 1 count", (1 == m1.getCount()));
+ ensure("Single insert MMM<> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("Single insert MMM<> has 1.0 max", (1.0 == m1.getMax()));
+ ensure("Single insert MMM<> has 1.0 mean", (1.0 == m1.getMean()));
+
+ // Second insert
+ m1.record(3.0);
+ ensure("2nd insert MMM<> has 2 count", (2 == m1.getCount()));
+ ensure("2nd insert MMM<> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("2nd insert MMM<> has 3.0 max", (3.0 == m1.getMax()));
+ ensure_approximately_equals("2nd insert MMM<> has 2.0 mean", m1.getMean(), lcl_float(2.0), 1);
+
+ // Third insert
+ m1.record(5.0);
+ ensure("3rd insert MMM<> has 3 count", (3 == m1.getCount()));
+ ensure("3rd insert MMM<> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("3rd insert MMM<> has 5.0 max", (5.0 == m1.getMax()));
+ ensure_approximately_equals("3rd insert MMM<> has 3.0 mean", m1.getMean(), lcl_float(3.0), 1);
+
+ // Fourth insert
+ m1.record(1000000.0);
+ ensure("4th insert MMM<> has 4 count", (4 == m1.getCount()));
+ ensure("4th insert MMM<> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("4th insert MMM<> has 100000.0 max", (1000000.0 == m1.getMax()));
+ ensure_approximately_equals("4th insert MMM<> has 250002.0 mean", m1.getMean(), lcl_float(250002.0), 1);
+
+ // Reset
+ m1.reset();
+ ensure("Reset MMM<> has 0 count", (0 == m1.getCount()));
+ ensure("Reset MMM<> has 0 min", (zero == m1.getMin()));
+ ensure("Reset MMM<> has 0 max", (zero == m1.getMax()));
+ ensure("Reset MMM<> has 0 mean no div-by-zero", (zero == m1.getMean()));
+ }
+
+ // Testing LLSimpleStatMMM's response to large values
+ template<> template<>
+ void stat_counter_index_object_t::test<5>()
+ {
+ LLSimpleStatMMM<> m1;
+ typedef LLSimpleStatMMM<>::Value lcl_float;
+ lcl_float zero(0);
+
+ // Insert overflowing values
+ const lcl_float bignum(F32_MAX / 2);
+
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(zero);
+
+ ensure("Overflowed MMM<> has 8 count", (8 == m1.getCount()));
+ ensure("Overflowed MMM<> has 0 min", (zero == m1.getMin()));
+ ensure("Overflowed MMM<> has huge max", (bignum == m1.getMax()));
+ ensure("Overflowed MMM<> has fetchable mean", (1.0 == m1.getMean() || true));
+ // We should be infinte but not interested in proving the IEEE standard here.
+ LLSD sd1(m1.getMean());
+ // std::cout << "Thingy: " << m1.getMean() << " and as LLSD: " << sd1 << std::endl;
+ ensure("Overflowed MMM<> produces LLSDable Real", (sd1.isReal()));
+ }
+
+ // Testing LLSimpleStatMMM<F32>'s external behavior
+ template<> template<>
+ void stat_counter_index_object_t::test<6>()
+ {
+ LLSimpleStatMMM<F32> m1;
+ typedef LLSimpleStatMMM<F32>::Value lcl_float;
+ lcl_float zero(0);
+
+ // Freshly-constructed
+ ensure("Constructed MMM<F32> has 0 count", (0 == m1.getCount()));
+ ensure("Constructed MMM<F32> has 0 min", (zero == m1.getMin()));
+ ensure("Constructed MMM<F32> has 0 max", (zero == m1.getMax()));
+ ensure("Constructed MMM<F32> has 0 mean no div-by-zero", (zero == m1.getMean()));
+
+ // Single insert
+ m1.record(1.0);
+ ensure("Single insert MMM<F32> has 1 count", (1 == m1.getCount()));
+ ensure("Single insert MMM<F32> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("Single insert MMM<F32> has 1.0 max", (1.0 == m1.getMax()));
+ ensure("Single insert MMM<F32> has 1.0 mean", (1.0 == m1.getMean()));
+
+ // Second insert
+ m1.record(3.0);
+ ensure("2nd insert MMM<F32> has 2 count", (2 == m1.getCount()));
+ ensure("2nd insert MMM<F32> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("2nd insert MMM<F32> has 3.0 max", (3.0 == m1.getMax()));
+ ensure_approximately_equals("2nd insert MMM<F32> has 2.0 mean", m1.getMean(), lcl_float(2.0), 1);
+
+ // Third insert
+ m1.record(5.0);
+ ensure("3rd insert MMM<F32> has 3 count", (3 == m1.getCount()));
+ ensure("3rd insert MMM<F32> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("3rd insert MMM<F32> has 5.0 max", (5.0 == m1.getMax()));
+ ensure_approximately_equals("3rd insert MMM<F32> has 3.0 mean", m1.getMean(), lcl_float(3.0), 1);
+
+ // Fourth insert
+ m1.record(1000000.0);
+ ensure("4th insert MMM<F32> has 4 count", (4 == m1.getCount()));
+ ensure("4th insert MMM<F32> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("4th insert MMM<F32> has 1000000.0 max", (1000000.0 == m1.getMax()));
+ ensure_approximately_equals("4th insert MMM<F32> has 250002.0 mean", m1.getMean(), lcl_float(250002.0), 1);
+
+ // Reset
+ m1.reset();
+ ensure("Reset MMM<F32> has 0 count", (0 == m1.getCount()));
+ ensure("Reset MMM<F32> has 0 min", (zero == m1.getMin()));
+ ensure("Reset MMM<F32> has 0 max", (zero == m1.getMax()));
+ ensure("Reset MMM<F32> has 0 mean no div-by-zero", (zero == m1.getMean()));
+ }
+
+ // Testing LLSimpleStatMMM's response to large values
+ template<> template<>
+ void stat_counter_index_object_t::test<7>()
+ {
+ LLSimpleStatMMM<F32> m1;
+ typedef LLSimpleStatMMM<F32>::Value lcl_float;
+ lcl_float zero(0);
+
+ // Insert overflowing values
+ const lcl_float bignum(F32_MAX / 2);
+
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(zero);
+
+ ensure("Overflowed MMM<F32> has 8 count", (8 == m1.getCount()));
+ ensure("Overflowed MMM<F32> has 0 min", (zero == m1.getMin()));
+ ensure("Overflowed MMM<F32> has huge max", (bignum == m1.getMax()));
+ ensure("Overflowed MMM<F32> has fetchable mean", (1.0 == m1.getMean() || true));
+ // We should be infinte but not interested in proving the IEEE standard here.
+ LLSD sd1(m1.getMean());
+ // std::cout << "Thingy: " << m1.getMean() << " and as LLSD: " << sd1 << std::endl;
+ ensure("Overflowed MMM<F32> produces LLSDable Real", (sd1.isReal()));
+ }
+
+ // Testing LLSimpleStatMMM<F64>'s external behavior
+ template<> template<>
+ void stat_counter_index_object_t::test<8>()
+ {
+ LLSimpleStatMMM<F64> m1;
+ typedef LLSimpleStatMMM<F64>::Value lcl_float;
+ lcl_float zero(0);
+
+ // Freshly-constructed
+ ensure("Constructed MMM<F64> has 0 count", (0 == m1.getCount()));
+ ensure("Constructed MMM<F64> has 0 min", (zero == m1.getMin()));
+ ensure("Constructed MMM<F64> has 0 max", (zero == m1.getMax()));
+ ensure("Constructed MMM<F64> has 0 mean no div-by-zero", (zero == m1.getMean()));
+
+ // Single insert
+ m1.record(1.0);
+ ensure("Single insert MMM<F64> has 1 count", (1 == m1.getCount()));
+ ensure("Single insert MMM<F64> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("Single insert MMM<F64> has 1.0 max", (1.0 == m1.getMax()));
+ ensure("Single insert MMM<F64> has 1.0 mean", (1.0 == m1.getMean()));
+
+ // Second insert
+ m1.record(3.0);
+ ensure("2nd insert MMM<F64> has 2 count", (2 == m1.getCount()));
+ ensure("2nd insert MMM<F64> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("2nd insert MMM<F64> has 3.0 max", (3.0 == m1.getMax()));
+ ensure_approximately_equals("2nd insert MMM<F64> has 2.0 mean", m1.getMean(), lcl_float(2.0), 1);
+
+ // Third insert
+ m1.record(5.0);
+ ensure("3rd insert MMM<F64> has 3 count", (3 == m1.getCount()));
+ ensure("3rd insert MMM<F64> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("3rd insert MMM<F64> has 5.0 max", (5.0 == m1.getMax()));
+ ensure_approximately_equals("3rd insert MMM<F64> has 3.0 mean", m1.getMean(), lcl_float(3.0), 1);
+
+ // Fourth insert
+ m1.record(1000000.0);
+ ensure("4th insert MMM<F64> has 4 count", (4 == m1.getCount()));
+ ensure("4th insert MMM<F64> has 1.0 min", (1.0 == m1.getMin()));
+ ensure("4th insert MMM<F64> has 1000000.0 max", (1000000.0 == m1.getMax()));
+ ensure_approximately_equals("4th insert MMM<F64> has 250002.0 mean", m1.getMean(), lcl_float(250002.0), 1);
+
+ // Reset
+ m1.reset();
+ ensure("Reset MMM<F64> has 0 count", (0 == m1.getCount()));
+ ensure("Reset MMM<F64> has 0 min", (zero == m1.getMin()));
+ ensure("Reset MMM<F64> has 0 max", (zero == m1.getMax()));
+ ensure("Reset MMM<F64> has 0 mean no div-by-zero", (zero == m1.getMean()));
+ }
+
+ // Testing LLSimpleStatMMM's response to large values
+ template<> template<>
+ void stat_counter_index_object_t::test<9>()
+ {
+ LLSimpleStatMMM<F64> m1;
+ typedef LLSimpleStatMMM<F64>::Value lcl_float;
+ lcl_float zero(0);
+
+ // Insert overflowing values
+ const lcl_float bignum(F64_MAX / 2);
+
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(zero);
+
+ ensure("Overflowed MMM<F64> has 8 count", (8 == m1.getCount()));
+ ensure("Overflowed MMM<F64> has 0 min", (zero == m1.getMin()));
+ ensure("Overflowed MMM<F64> has huge max", (bignum == m1.getMax()));
+ ensure("Overflowed MMM<F64> has fetchable mean", (1.0 == m1.getMean() || true));
+ // We should be infinte but not interested in proving the IEEE standard here.
+ LLSD sd1(m1.getMean());
+ // std::cout << "Thingy: " << m1.getMean() << " and as LLSD: " << sd1 << std::endl;
+ ensure("Overflowed MMM<F64> produces LLSDable Real", (sd1.isReal()));
+ }
+
+ // Testing LLSimpleStatMMM<U64>'s external behavior
+ template<> template<>
+ void stat_counter_index_object_t::test<10>()
+ {
+ LLSimpleStatMMM<U64> m1;
+ typedef LLSimpleStatMMM<U64>::Value lcl_int;
+ lcl_int zero(0);
+
+ // Freshly-constructed
+ ensure("Constructed MMM<U64> has 0 count", (0 == m1.getCount()));
+ ensure("Constructed MMM<U64> has 0 min", (zero == m1.getMin()));
+ ensure("Constructed MMM<U64> has 0 max", (zero == m1.getMax()));
+ ensure("Constructed MMM<U64> has 0 mean no div-by-zero", (zero == m1.getMean()));
+
+ // Single insert
+ m1.record(1);
+ ensure("Single insert MMM<U64> has 1 count", (1 == m1.getCount()));
+ ensure("Single insert MMM<U64> has 1 min", (1 == m1.getMin()));
+ ensure("Single insert MMM<U64> has 1 max", (1 == m1.getMax()));
+ ensure("Single insert MMM<U64> has 1 mean", (1 == m1.getMean()));
+
+ // Second insert
+ m1.record(3);
+ ensure("2nd insert MMM<U64> has 2 count", (2 == m1.getCount()));
+ ensure("2nd insert MMM<U64> has 1 min", (1 == m1.getMin()));
+ ensure("2nd insert MMM<U64> has 3 max", (3 == m1.getMax()));
+ ensure("2nd insert MMM<U64> has 2 mean", (2 == m1.getMean()));
+
+ // Third insert
+ m1.record(5);
+ ensure("3rd insert MMM<U64> has 3 count", (3 == m1.getCount()));
+ ensure("3rd insert MMM<U64> has 1 min", (1 == m1.getMin()));
+ ensure("3rd insert MMM<U64> has 5 max", (5 == m1.getMax()));
+ ensure("3rd insert MMM<U64> has 3 mean", (3 == m1.getMean()));
+
+ // Fourth insert
+ m1.record(U64L(1000000000000));
+ ensure("4th insert MMM<U64> has 4 count", (4 == m1.getCount()));
+ ensure("4th insert MMM<U64> has 1 min", (1 == m1.getMin()));
+ ensure("4th insert MMM<U64> has 1000000000000ULL max", (U64L(1000000000000) == m1.getMax()));
+ ensure("4th insert MMM<U64> has 250000000002ULL mean", (U64L( 250000000002) == m1.getMean()));
+
+ // Reset
+ m1.reset();
+ ensure("Reset MMM<U64> has 0 count", (0 == m1.getCount()));
+ ensure("Reset MMM<U64> has 0 min", (zero == m1.getMin()));
+ ensure("Reset MMM<U64> has 0 max", (zero == m1.getMax()));
+ ensure("Reset MMM<U64> has 0 mean no div-by-zero", (zero == m1.getMean()));
+ }
+
+ // Testing LLSimpleStatMMM's response to large values
+ template<> template<>
+ void stat_counter_index_object_t::test<11>()
+ {
+ LLSimpleStatMMM<U64> m1;
+ typedef LLSimpleStatMMM<U64>::Value lcl_int;
+ lcl_int zero(0);
+
+ // Insert overflowing values
+ const lcl_int bignum(U64L(0xffffffffffffffff) / 2);
+
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(bignum);
+ m1.record(zero);
+
+ ensure("Overflowed MMM<U64> has 8 count", (8 == m1.getCount()));
+ ensure("Overflowed MMM<U64> has 0 min", (zero == m1.getMin()));
+ ensure("Overflowed MMM<U64> has huge max", (bignum == m1.getMax()));
+ ensure("Overflowed MMM<U64> has fetchable mean", (zero == m1.getMean() || true));
+ }
+
+ // Testing LLSimpleStatCounter's merge() method
+ template<> template<>
+ void stat_counter_index_object_t::test<12>()
+ {
+ LLSimpleStatCounter c1;
+ LLSimpleStatCounter c2;
+
+ ++c1;
+ ++c1;
+ ++c1;
+ ++c1;
+
+ ++c2;
+ ++c2;
+ c2.merge(c1);
+
+ ensure_equals("4 merged into 2 results in 6", 6, c2.getCount());
+
+ ensure_equals("Source of merge is undamaged", 4, c1.getCount());
+ }
+
+ // Testing LLSimpleStatMMM's merge() method
+ template<> template<>
+ void stat_counter_index_object_t::test<13>()
+ {
+ LLSimpleStatMMM<> m1;
+ LLSimpleStatMMM<> m2;
+
+ m1.record(3.5);
+ m1.record(4.5);
+ m1.record(5.5);
+ m1.record(6.5);
+
+ m2.record(5.0);
+ m2.record(7.0);
+ m2.record(9.0);
+
+ m2.merge(m1);
+
+ ensure_equals("Count after merge (p1)", 7, m2.getCount());
+ ensure_approximately_equals("Min after merge (p1)", F32(3.5), m2.getMin(), 22);
+ ensure_approximately_equals("Max after merge (p1)", F32(9.0), m2.getMax(), 22);
+ ensure_approximately_equals("Mean after merge (p1)", F32(41.000/7.000), m2.getMean(), 22);
+
+
+ ensure_equals("Source count of merge is undamaged (p1)", 4, m1.getCount());
+ ensure_approximately_equals("Source min of merge is undamaged (p1)", F32(3.5), m1.getMin(), 22);
+ ensure_approximately_equals("Source max of merge is undamaged (p1)", F32(6.5), m1.getMax(), 22);
+ ensure_approximately_equals("Source mean of merge is undamaged (p1)", F32(5.0), m1.getMean(), 22);
+
+ m2.reset();
+
+ m2.record(-22.0);
+ m2.record(-1.0);
+ m2.record(30.0);
+
+ m2.merge(m1);
+
+ ensure_equals("Count after merge (p2)", 7, m2.getCount());
+ ensure_approximately_equals("Min after merge (p2)", F32(-22.0), m2.getMin(), 22);
+ ensure_approximately_equals("Max after merge (p2)", F32(30.0), m2.getMax(), 22);
+ ensure_approximately_equals("Mean after merge (p2)", F32(27.000/7.000), m2.getMean(), 22);
+
+ }
+
+ // Testing LLSimpleStatMMM's merge() method when src contributes nothing
+ template<> template<>
+ void stat_counter_index_object_t::test<14>()
+ {
+ LLSimpleStatMMM<> m1;
+ LLSimpleStatMMM<> m2;
+
+ m2.record(5.0);
+ m2.record(7.0);
+ m2.record(9.0);
+
+ m2.merge(m1);
+
+ ensure_equals("Count after merge (p1)", 3, m2.getCount());
+ ensure_approximately_equals("Min after merge (p1)", F32(5.0), m2.getMin(), 22);
+ ensure_approximately_equals("Max after merge (p1)", F32(9.0), m2.getMax(), 22);
+ ensure_approximately_equals("Mean after merge (p1)", F32(7.000), m2.getMean(), 22);
+
+ ensure_equals("Source count of merge is undamaged (p1)", 0, m1.getCount());
+ ensure_approximately_equals("Source min of merge is undamaged (p1)", F32(0), m1.getMin(), 22);
+ ensure_approximately_equals("Source max of merge is undamaged (p1)", F32(0), m1.getMax(), 22);
+ ensure_approximately_equals("Source mean of merge is undamaged (p1)", F32(0), m1.getMean(), 22);
+
+ m2.reset();
+
+ m2.record(-22.0);
+ m2.record(-1.0);
+
+ m2.merge(m1);
+
+ ensure_equals("Count after merge (p2)", 2, m2.getCount());
+ ensure_approximately_equals("Min after merge (p2)", F32(-22.0), m2.getMin(), 22);
+ ensure_approximately_equals("Max after merge (p2)", F32(-1.0), m2.getMax(), 22);
+ ensure_approximately_equals("Mean after merge (p2)", F32(-11.5), m2.getMean(), 22);
+ }
+
+ // Testing LLSimpleStatMMM's merge() method when dst contributes nothing
+ template<> template<>
+ void stat_counter_index_object_t::test<15>()
+ {
+ LLSimpleStatMMM<> m1;
+ LLSimpleStatMMM<> m2;
+
+ m1.record(5.0);
+ m1.record(7.0);
+ m1.record(9.0);
+
+ m2.merge(m1);
+
+ ensure_equals("Count after merge (p1)", 3, m2.getCount());
+ ensure_approximately_equals("Min after merge (p1)", F32(5.0), m2.getMin(), 22);
+ ensure_approximately_equals("Max after merge (p1)", F32(9.0), m2.getMax(), 22);
+ ensure_approximately_equals("Mean after merge (p1)", F32(7.000), m2.getMean(), 22);
+
+ ensure_equals("Source count of merge is undamaged (p1)", 3, m1.getCount());
+ ensure_approximately_equals("Source min of merge is undamaged (p1)", F32(5.0), m1.getMin(), 22);
+ ensure_approximately_equals("Source max of merge is undamaged (p1)", F32(9.0), m1.getMax(), 22);
+ ensure_approximately_equals("Source mean of merge is undamaged (p1)", F32(7.0), m1.getMean(), 22);
+
+ m1.reset();
+ m2.reset();
+
+ m1.record(-22.0);
+ m1.record(-1.0);
+
+ m2.merge(m1);
+
+ ensure_equals("Count after merge (p2)", 2, m2.getCount());
+ ensure_approximately_equals("Min after merge (p2)", F32(-22.0), m2.getMin(), 22);
+ ensure_approximately_equals("Max after merge (p2)", F32(-1.0), m2.getMax(), 22);
+ ensure_approximately_equals("Mean after merge (p2)", F32(-11.5), m2.getMean(), 22);
+ }
+
+ // Testing LLSimpleStatMMM's merge() method when neither dst nor src contributes
+ template<> template<>
+ void stat_counter_index_object_t::test<16>()
+ {
+ LLSimpleStatMMM<> m1;
+ LLSimpleStatMMM<> m2;
+
+ m2.merge(m1);
+
+ ensure_equals("Count after merge (p1)", 0, m2.getCount());
+ ensure_approximately_equals("Min after merge (p1)", F32(0), m2.getMin(), 22);
+ ensure_approximately_equals("Max after merge (p1)", F32(0), m2.getMax(), 22);
+ ensure_approximately_equals("Mean after merge (p1)", F32(0), m2.getMean(), 22);
+
+ ensure_equals("Source count of merge is undamaged (p1)", 0, m1.getCount());
+ ensure_approximately_equals("Source min of merge is undamaged (p1)", F32(0), m1.getMin(), 22);
+ ensure_approximately_equals("Source max of merge is undamaged (p1)", F32(0), m1.getMax(), 22);
+ ensure_approximately_equals("Source mean of merge is undamaged (p1)", F32(0), m1.getMean(), 22);
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 23:02:32 +0000