public override bool Matches(object actual)
{
base.actual = actual;
if (from == null || to == null || actual == null)
{
throw new ArgumentException("Cannot compare using a null reference", "actual");
}
return(comparer.Compare(from, actual) <= 0 && comparer.Compare(to, actual) >= 0);
}
/// <summary>
/// Test whether the constraint is satisfied by a given value
/// </summary>
/// <param name="actual">The value to be tested</param>
/// <returns>True for success, false for failure</returns>
public override ConstraintResult ApplyTo <TActual>(TActual actual)
{
if (from == null || to == null || actual == null)
{
throw new ArgumentException("Cannot compare using a null reference", "actual");
}
bool isInsideRange = comparer.Compare(from, actual) <= 0 && comparer.Compare(to, actual) >= 0;
return(new ConstraintResult(this, actual, isInsideRange));
}
/// <summary>
/// Initializes a new instance of the <see cref="RangeConstraint"/> class.
/// </summary>
/// <remarks>from must be less than or equal to true</remarks>
/// <param name="from">Inclusive beginning of the range. Must be less than or equal to to.</param>
/// <param name="to">Inclusive end of the range. Must be greater than or equal to from.</param>
public RangeConstraint(IComparable from, IComparable to) : base(from, to)
{
// Issue #21 - https://github.com/nunit/nunit-framework/issues/21
// from must be less than or equal to to
if (comparer.Compare(from, to) > 0)
{
throw new ArgumentException("from must be less than to");
}
this.from = from;
this.to = to;
}
public override bool Matches(object actual)
{
base.actual = actual;
if (expected == null)
{
throw new ArgumentException("Cannot compare using a null reference", "expected");
}
if (actual == null)
{
throw new ArgumentException("Cannot compare to null reference", "actual");
}
int num = comparer.Compare(expected, actual);
return((num < 0 && greaterComparisonResult) || (num == 0 && equalComparisonResult) || (num > 0 && lessComparisonResult));
}
/// <summary>
/// Test whether the constraint is satisfied by a given value
/// </summary>
/// <param name="actual">The value to be tested</param>
/// <returns>True for success, false for failure</returns>
public override bool Matches(object actual)
{
this.actual = actual;
if (expected == null)
{
throw new ArgumentException("Cannot compare using a null reference", "expected");
}
if (actual == null)
{
throw new ArgumentException("Cannot compare to null reference", "actual");
}
int icomp = comparer.Compare(expected, actual);
return(icomp < 0 && gtOK || icomp == 0 && eqOK || icomp > 0 && ltOK);
}
/// <summary>
/// Test whether the constraint is satisfied by a given value
/// </summary>
/// <param name="actual">The value to be tested</param>
/// <returns>True for success, false for failure</returns>
public override ConstraintResult ApplyTo <TActual>(TActual actual)
{
if (expected == null)
{
throw new ArgumentException("Cannot compare using a null reference", "expected");
}
if (actual == null)
{
throw new ArgumentException("Cannot compare to null reference", "actual");
}
int icomp = comparer.Compare(expected, actual);
bool hasSucceeded = icomp < 0 && greaterComparisonResult || icomp == 0 && equalComparisonResult || icomp > 0 && lessComparisonResult;
return(new ConstraintResult(this, actual, hasSucceeded));
}
/// <summary>
/// Test whether the collection is ordered
/// </summary>
/// <param name="actual"></param>
/// <returns></returns>
protected override bool doMatch(IEnumerable actual)
{
object previous = null;
int index = 0;
foreach (object obj in actual)
{
object objToCompare = obj;
if (obj == null)
{
throw new ArgumentNullException("actual", "Null value at index " + index.ToString());
}
if (this.propertyName != null)
{
PropertyInfo prop = obj.GetType().GetProperty(propertyName);
objToCompare = prop.GetValue(obj, null);
if (objToCompare == null)
{
throw new ArgumentNullException("actual", "Null property value at index " + index.ToString());
}
}
if (previous != null)
{
//int comparisonResult = comparer.Compare(al[i], al[i + 1]);
int comparisonResult = comparer.Compare(previous, objToCompare);
if (descending && comparisonResult < 0)
{
return(false);
}
if (!descending && comparisonResult > 0)
{
return(false);
}
}
previous = objToCompare;
index++;
}
return(true);
}
protected override bool doMatch(IEnumerable actual)
{
object obj = null;
int num = 0;
foreach (object item in actual)
{
object obj2 = item;
if (item == null)
{
throw new ArgumentNullException("actual", "Null value at index " + num);
}
if (propertyName != null)
{
PropertyInfo property = item.GetType().GetProperty(propertyName);
obj2 = property.GetValue(item, null);
if (obj2 == null)
{
throw new ArgumentNullException("actual", "Null property value at index " + num);
}
}
if (obj != null)
{
int num2 = comparer.Compare(obj, obj2);
if (descending && num2 < 0)
{
return(false);
}
if (!descending && num2 > 0)
{
return(false);
}
}
obj = obj2;
num++;
}
return(true);
}
public override bool ObjectsEqual(object x, object y)
{
return(comparer.Compare(x, y) == 0);
}
/// <summary>
/// Perform the comparison
/// </summary>
protected override bool PerformComparison(ComparisonAdapter comparer, object actual, object expected, Tolerance tolerance)
{
return(comparer.Compare(actual, tolerance.ApplyToValue(expected).LowerBound) > 0);
}
public static void CanCompareWithNull(ComparisonAdapter adapter)
{
Assert.That(adapter.Compare(null, "a"), Is.LessThan(0));
Assert.That(adapter.Compare("a", null), Is.GreaterThan(0));
Assert.That(adapter.Compare(null, null), Is.Zero);
}
