C++：实现量化可观察observable设置测试实例

C++：实现量化可观察observable设置测试实例

#include "observable.hpp"
#include "utilities.hpp"
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include using namespace QuantLib;
using namespace boost::unit_test_framework;namespace {class UpdateCounter : public Observer {public:UpdateCounter() = default;void update() override { ++counter_; }Size counter() const { return counter_; }private:Size counter_ = 0;};class RestoreUpdates {public:~RestoreUpdates() {ObservableSettings::instance().enableUpdates();}};}void ObservableTest::testObservableSettings() {BOOST_TEST_MESSAGE("Testing observable settings...");const ext::shared_ptr<SimpleQuote> quote(new SimpleQuote(100.0));UpdateCounter updateCounter;updateCounter.registerWith(quote);if (updateCounter.counter() != 0) {BOOST_FAIL("update counter value is not zero");}quote->setValue(1.0);if (updateCounter.counter() != 1) {BOOST_FAIL("update counter value is not one");}ObservableSettings::instance().disableUpdates(false);quote->setValue(2.0);if (updateCounter.counter() != 1) {BOOST_FAIL("update counter value is not one");}ObservableSettings::instance().enableUpdates();if (updateCounter.counter() != 1) {BOOST_FAIL("update counter value is not one");}ObservableSettings::instance().disableUpdates(true);quote->setValue(3.0);if (updateCounter.counter() != 1) {BOOST_FAIL("update counter value is not one");}ObservableSettings::instance().enableUpdates();if (updateCounter.counter() != 2) {BOOST_FAIL("update counter value is not two");}UpdateCounter updateCounter2;updateCounter2.registerWith(quote);ObservableSettings::instance().disableUpdates(true);for (Size i=0; i < 10; ++i) {quote->setValue(Real(i));}if (updateCounter.counter() != 2) {BOOST_FAIL("update counter value is not two"

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