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Diffstat (limited to 'vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/constraints/equalswithdeltaconstraint.h')
-rw-r--r-- | vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/constraints/equalswithdeltaconstraint.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/constraints/equalswithdeltaconstraint.h b/vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/constraints/equalswithdeltaconstraint.h new file mode 100644 index 00000000..b54fb74e --- /dev/null +++ b/vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/constraints/equalswithdeltaconstraint.h @@ -0,0 +1,51 @@ + +// Copyright Joakim Karlsson & Kim Gräsman 2010-2012. +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +#ifndef IGLOO_EQUALSWITHDELTACONSTRAINT_H +#define IGLOO_EQUALSWITHDELTACONSTRAINT_H + +#include "./expressions/expression.h" + +namespace snowhouse { + + template< typename ExpectedType, typename DeltaType > + struct EqualsWithDeltaConstraint : Expression< EqualsWithDeltaConstraint<ExpectedType, DeltaType> > + { + EqualsWithDeltaConstraint(const ExpectedType& expected, const DeltaType& delta) + : m_expected(expected), m_delta(delta) + { + } + + template<typename ActualType> + bool operator()(const ActualType& actual) const + { + return ((m_expected <= (actual + m_delta)) && (m_expected >= (actual - m_delta))); + } + + ExpectedType m_expected; + DeltaType m_delta; + }; + + template< typename ExpectedType, typename DeltaType > + inline EqualsWithDeltaConstraint<ExpectedType, DeltaType> EqualsWithDelta(const ExpectedType& expected, const DeltaType& delta) + { + return EqualsWithDeltaConstraint<ExpectedType, DeltaType>(expected, delta); + } + + template< typename ExpectedType, typename DeltaType > + struct Stringizer< EqualsWithDeltaConstraint< ExpectedType, DeltaType > > + { + static std::string ToString(const EqualsWithDeltaConstraint<ExpectedType, DeltaType>& constraint) + { + std::ostringstream builder; + builder << "equal to " << snowhouse::Stringize(constraint.m_expected) << " (+/- " << snowhouse::Stringize(constraint.m_delta) << ")"; + + return builder.str(); + } + }; +} + +#endif |