Class EqualNumericWithoutUsingConstraint<T>

EqualNumericConstraint is able to compare an actual value with the expected value provided in its constructor. Two objects are considered equal if both are null, or if both have the same value. NUnit has special semantics for some object types.

Inheritance

object

Constraint

EqualNumericWithoutUsingConstraint<T>

EqualNumericConstraint<T>

Implements

IConstraint

IResolveConstraint

Inherited Members

Constraint.ApplyTo<TActual>(ActualValueDelegate<TActual>)

Constraint.ApplyTo<TActual>(ref TActual)

Constraint.ApplyToAsync<TActual>(Func<Task<TActual>>)

Constraint.GetTestObject<TActual>(ActualValueDelegate<TActual>)

Constraint.ToString()

Constraint.GetStringRepresentation(IEnumerable)

Constraint.GetStringRepresentation()

Constraint.After(int)

Constraint.After(int, int)

Constraint.Arguments

Constraint.Builder

Constraint.And

Constraint.With

Constraint.Or

object.GetType()

object.MemberwiseClone()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Namespace: NUnit.Framework.Constraints

Assembly: nunit.framework.dll

Syntax

public class EqualNumericWithoutUsingConstraint<T> : Constraint, IConstraint, IResolveConstraint where T : struct

Type Parameters

Name	Description
T

Constructors

EqualNumericWithoutUsingConstraint(T)

Initializes a new instance of the EqualConstraint class.

Declaration

public EqualNumericWithoutUsingConstraint(T expected)

Parameters

Type	Name	Description
T	expected	The expected value.

Remarks

Marked internal to prevent external instantiation with non-supported types.

Properties

Description

The Description of what this constraint tests, for use in messages and in the ConstraintResult.

Declaration

public override string Description { get; }

Property Value

Type	Description
string

Overrides

Constraint.Description

DisplayName

The display name of this Constraint for use by ToString(). The default value is the name of the constraint with trailing "Constraint" removed. Derived classes may set this to another name in their constructors.

Declaration

public override string DisplayName { get; }

Property Value

Type	Description
string

Overrides

Constraint.DisplayName

Expected

The expected value.

Declaration

public T Expected { get; }

Property Value

Type	Description
T

Percent

Switches the .Within() modifier to interpret its tolerance as a percentage that the actual values is allowed to deviate from the expected value.

Declaration

public EqualNumericWithoutUsingConstraint<T> Percent { get; }

Property Value

Type	Description
EqualNumericWithoutUsingConstraint<T>	Self

Tolerance

Gets the tolerance for this comparison.

Declaration

public Tolerance Tolerance { get; }

Property Value

Type	Description
Tolerance	The tolerance.

Ulps

Switches the .Within() modifier to interpret its tolerance as a distance in representable values (see remarks).

Declaration

public EqualNumericWithoutUsingConstraint<T> Ulps { get; }

Property Value

Type	Description
EqualNumericWithoutUsingConstraint<T>	Self.

Remarks

Ulp stands for "unit in the last place" and describes the minimum amount a given value can change. For any integers, an ulp is 1 whole digit. For floating point values, the accuracy of which is better for smaller numbers and worse for larger numbers, an ulp depends on the size of the number. Using ulps for comparison of floating point results instead of fixed tolerances is safer because it will automatically compensate for the added inaccuracy of larger numbers.

Methods

ApplyTo(T)

Test whether the constraint is satisfied by a given value

Declaration

public ConstraintResult ApplyTo(T actual)

Parameters

Type	Name	Description
T	actual	The value to be tested

Returns

Type	Description
ConstraintResult	True for success, false for failure

ApplyTo<TActual>(TActual)

Test whether the constraint is satisfied by a given value

Declaration

public override ConstraintResult ApplyTo<TActual>(TActual actual)

Parameters

Type	Name	Description
TActual	actual	The value to be tested

Returns

Type	Description
ConstraintResult	True for success, false for failure

Type Parameters

Name	Description
TActual

Overrides

Constraint.ApplyTo<TActual>(TActual)

Within(T)

Flag the constraint to use a tolerance when determining equality.

Declaration

public EqualNumericWithoutUsingConstraint<T> Within(T amount)

Parameters

Type	Name	Description
T	amount	Tolerance value to be used

Returns

Type	Description
EqualNumericWithoutUsingConstraint<T>	Self.

Implements

IConstraint

IResolveConstraint