public void ToString_WithSingleInnerException_ReturnsExpectedText()
        {
            // Arrange
            Exception innerException          = new InvalidOperationException("bad, bad things have happened.");
            var       exceptionUnderTest      = new CompositeException("Errors have occurred.", innerException);
            var       expectedBeginningOfText =
                "CuttingEdge.Logging.CompositeException: Errors have occurred. ---> " +
                "System.InvalidOperationException: bad, bad things have happened.";

            var expectedEndingOfText =
                @"---> (Inner Exception #0) " +
                "System.InvalidOperationException: bad, bad things have happened.<---" + Environment.NewLine;

            // Act
            var actualText = exceptionUnderTest.ToString();

            // Arrange
            Assert.IsTrue(actualText.StartsWith(expectedBeginningOfText));
            Assert.IsTrue(actualText.EndsWith(expectedEndingOfText));
        }