public void CreateEncryptorInstance_Success()
        {
            // Arrange
            var expectedEncryptor = new Mock <IAuthenticatedEncryptor>().Object;
            var mockDescriptor    = new Mock <IAuthenticatedEncryptorDescriptor>();

            mockDescriptor.Setup(o => o.CreateEncryptorInstance()).Returns(expectedEncryptor);
            var mockKeyManager = new Mock <IInternalXmlKeyManager>();

            mockKeyManager.Setup(o => o.DeserializeDescriptorFromKeyElement(It.IsAny <XElement>()))
            .Returns <XElement>(element =>
            {
                XmlAssert.Equal(@"<node />", element);
                return(mockDescriptor.Object);
            });

            var now = DateTimeOffset.UtcNow;
            var key = new DeferredKey(Guid.Empty, now, now, now, mockKeyManager.Object, XElement.Parse(@"<node />"));

            // Act
            var actual = key.CreateEncryptorInstance();

            // Assert
            Assert.Same(expectedEncryptor, actual);
        }
        public void CreateEncryptorInstance_CachesFailures()
        {
            // Arrange
            int numTimesCalled = 0;
            var mockKeyManager = new Mock<IInternalXmlKeyManager>();
            mockKeyManager.Setup(o => o.DeserializeDescriptorFromKeyElement(It.IsAny<XElement>()))
                .Returns<XElement>(element =>
                {
                    numTimesCalled++;
                    throw new Exception("How exceptional.");
                });

            var now = DateTimeOffset.UtcNow;
            var key = new DeferredKey(Guid.Empty, now, now, now, mockKeyManager.Object, XElement.Parse(@"<node />"));

            // Act & assert
            ExceptionAssert.Throws<Exception>(() => key.CreateEncryptorInstance(), "How exceptional.");
            ExceptionAssert.Throws<Exception>(() => key.CreateEncryptorInstance(), "How exceptional.");
            Assert.Equal(1, numTimesCalled);
        }
        public void CreateEncryptorInstance_CachesFailures()
        {
            // Arrange
            int numTimesCalled = 0;
            var mockKeyManager = new Mock <IInternalXmlKeyManager>();

            mockKeyManager.Setup(o => o.DeserializeDescriptorFromKeyElement(It.IsAny <XElement>()))
            .Returns <XElement>(element =>
            {
                numTimesCalled++;
                throw new Exception("How exceptional.");
            });

            var now = DateTimeOffset.UtcNow;
            var key = new DeferredKey(Guid.Empty, now, now, now, mockKeyManager.Object, XElement.Parse(@"<node />"));

            // Act & assert
            ExceptionAssert.Throws <Exception>(() => key.CreateEncryptorInstance(), "How exceptional.");
            ExceptionAssert.Throws <Exception>(() => key.CreateEncryptorInstance(), "How exceptional.");
            Assert.Equal(1, numTimesCalled);
        }
        public void CreateEncryptorInstance_Success()
        {
            // Arrange
            var expectedEncryptor = new Mock<IAuthenticatedEncryptor>().Object;
            var mockDescriptor = new Mock<IAuthenticatedEncryptorDescriptor>();
            mockDescriptor.Setup(o => o.CreateEncryptorInstance()).Returns(expectedEncryptor);
            var mockKeyManager = new Mock<IInternalXmlKeyManager>();
            mockKeyManager.Setup(o => o.DeserializeDescriptorFromKeyElement(It.IsAny<XElement>()))
                .Returns<XElement>(element =>
                {
                    XmlAssert.Equal(@"<node />", element);
                    return mockDescriptor.Object;
                });

            var now = DateTimeOffset.UtcNow;
            var key = new DeferredKey(Guid.Empty, now, now, now, mockKeyManager.Object, XElement.Parse(@"<node />"));

            // Act
            var actual = key.CreateEncryptorInstance();

            // Assert
            Assert.Same(expectedEncryptor, actual);
        }