/// <summary>
/// Asserts that the thrown exception has a message that matches <paramref name = "expectedMessage" />
/// depending on the specified matching mode.
/// </summary>
/// <param name = "expectedMessage">
/// The expected message of the exception.
/// </param>
/// <param name = "comparisonMode">
/// Determines how the expected message is compared with the actual message.
/// </param>
/// <param name = "reason">
/// A formatted phrase as is supported by <see cref = "string.Format(string,object[])" /> explaining why the assertion
/// is needed. If the phrase does not start with the word <i>because</i>, it is prepended automatically.
/// </param>
/// <param name = "reasonArgs">
/// Zero or more objects to format using the placeholders in <see cref = "reason" />.
/// </param>
public virtual ExceptionAssertions <TException> WithMessage(string expectedMessage, ComparisonMode comparisonMode,
string reason = "", params object[] reasonArgs)
{
AssertionScope assertion = Execute.Assertion.BecauseOf(reason, reasonArgs).UsingLineBreaks;
assertion
.ForCondition(Subject.Any())
.FailWith("Expected exception with message {0}{reason}, but no exception was thrown.", expectedMessage);
ExceptionMessageAssertion messageAssertion = outerMessageAssertions[comparisonMode];
messageAssertion.Execute(Subject.Select(exc => exc.Message).ToArray(), expectedMessage, reason, reasonArgs);
return(this);
}
/// <summary>
/// Asserts that the thrown exception contains an inner exception with the <paramref name = "expectedInnerMessage" />.
/// </summary>
/// <param name = "expectedInnerMessage">The expected message of the inner exception.</param>
/// <param name = "comparisonMode">Determines how the expected message is compared with the actual message.</param>
/// <param name = "reason">
/// The reason why the message of the inner exception should match <paramref name = "expectedInnerMessage" />.
/// </param>
/// <param name = "reasonArgs">The parameters used when formatting the <paramref name = "reason" />.</param>
public virtual ExceptionAssertions <TException> WithInnerMessage(string expectedInnerMessage,
ComparisonMode comparisonMode, string reason, params object[] reasonArgs)
{
AssertionScope assertion = Execute.Assertion
.BecauseOf(reason, reasonArgs)
.UsingLineBreaks;
assertion
.ForCondition(Subject.Any())
.FailWith("Expected inner exception{reason}, but no exception was thrown.");
assertion
.ForCondition(Subject.Any(e => e.InnerException != null))
.FailWith("Expected inner exception{reason}, but the thrown exception has no inner exception.");
string[] subjectInnerMessage = Subject.Select(e => e.InnerException.Message).ToArray();
ExceptionMessageAssertion messageAssertion = innerMessageAssertions[comparisonMode];
messageAssertion.Execute(subjectInnerMessage, expectedInnerMessage, reason, reasonArgs);
return(this);
}