/// <summary>
/// Asserts that a <see cref="DateTimeOffset"/> occurs a specified amount of time before another <see cref="DateTimeOffset"/>.
/// </summary>
/// <param name="target">
/// The <see cref="DateTimeOffset"/> to compare the subject with.
/// </param>
/// <param name="because">
/// A formatted phrase explaining why the assertion should be satisfied. If the phrase does not
/// start with the word <i>because</i>, it is prepended to the message.
/// </param>
/// <param name="reasonArgs">
/// Zero or more values to use for filling in any <see cref="string.Format(string,object[])"/> compatible placeholders.
/// </param>
public AndConstraint <DateTimeOffsetAssertions> Before(DateTimeOffset target, string because = "",
params object[] reasonArgs)
{
bool success = Execute.Assertion
.ForCondition(subject.HasValue)
.BecauseOf(because, reasonArgs)
.FailWith("Expected date and/or time {0} to be " + predicate.DisplayText +
" {1} before {2}{reason}, but found a <null> DateTime.",
subject, timeSpan, target);
if (success)
{
var actual = target.Subtract(subject.Value);
if (!predicate.IsMatchedBy(actual, timeSpan))
{
Execute.Assertion
.BecauseOf(because, reasonArgs)
.FailWith(
"Expected date and/or time {0} to be " + predicate.DisplayText +
" {1} before {2}{reason}, but it differs {3}.",
subject, timeSpan, target, actual);
}
}
return(new AndConstraint <DateTimeOffsetAssertions>(parentAssertions));
}
/// <summary>
/// Asserts that a <see cref="DateTime"/> occurs a specified amount of time before another <see cref="DateTime"/>.
/// </summary>
/// <param name="target">
/// The <see cref="DateTime"/> to compare the subject with.
/// </param>
/// <param name="because">
/// A formatted phrase explaining why the assertion should be satisfied. If the phrase does not
/// start with the word <i>because</i>, it is prepended to the message.
/// </param>
/// <param name="becauseArgs">
/// Zero or more values to use for filling in any <see cref="string.Format(string,object[])"/> compatible placeholders.
/// </param>
public AndConstraint <TAssertions> Before(DateTime target, string because = "",
params object[] becauseArgs)
{
bool success = Execute.Assertion
.ForCondition(subject.HasValue)
.BecauseOf(because, becauseArgs)
.FailWith("Expected date and/or time {0} to be " + predicate.DisplayText +
" {1} before {2}{reason}, but found a <null> DateTime.",
subject, timeSpan, target);
if (success)
{
TimeSpan actual = target - subject.Value;
Execute.Assertion
.ForCondition(predicate.IsMatchedBy(actual, timeSpan))
.BecauseOf(because, becauseArgs)
.FailWith(
"Expected {context:the date and time} {0} to be " + predicate.DisplayText +
" {1} before {2}{reason}, but it is " + PositionRelativeToTarget(subject.Value, target) + " by {3}.",
subject, timeSpan, target, actual.Duration());
}
return(new AndConstraint <TAssertions>(parentAssertions));
}