public async Task Handle_InstanceFound_LightsailInstanceReturned()
{
//Arrange
var existingInstance = new Instance();
var fakeAmazonLightsail = Substitute.For <IAmazonLightsail>();
fakeAmazonLightsail
.GetInstanceAsync(
Arg.Is <GetInstanceRequest>(
arg => arg.InstanceName == "some-instance-name"),
default)
.Returns(new GetInstanceResponse()
{
Instance = existingInstance
});
var handler = new GetLightsailInstanceByNameQueryHandler(
fakeAmazonLightsail);
//Act
var instance = await handler.Handle(
new GetLightsailInstanceByNameQuery("some-instance-name"),
default);
//Assert
Assert.IsNotNull(instance);
Assert.AreSame(existingInstance, instance);
}
public async Task Handle_InstanceNotFoundExceptionThrown_ReturnsNull()
{
//Arrange
var fakeAmazonLightsail = Substitute.For <IAmazonLightsail>();
fakeAmazonLightsail
.GetInstanceAsync(
Arg.Any <GetInstanceRequest>(),
default)
.Throws(new NotFoundException("Not found"));
var handler = new GetLightsailInstanceByNameQueryHandler(
fakeAmazonLightsail);
//Act
var instance = await handler.Handle(
new GetLightsailInstanceByNameQuery("some-instance-name"),
default);
//Assert
Assert.IsNull(instance);
}
public async Task Handle_NullLightsailResponseReturned_ReturnsNull()
{
//Arrange
var fakeAmazonLightsail = Substitute.For <IAmazonLightsail>();
fakeAmazonLightsail
.GetInstanceAsync(
Arg.Is <GetInstanceRequest>(
arg => arg.InstanceName == "some-instance-name"),
default)
.Returns((GetInstanceResponse)null);
var handler = new GetLightsailInstanceByNameQueryHandler(
fakeAmazonLightsail);
//Act
var instance = await handler.Handle(
new GetLightsailInstanceByNameQuery("some-instance-name"),
default);
//Assert
Assert.IsNull(instance);
}