Services

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Services are a number of project components that usually require mocking or injecting.

In most projects you would like to be able to control things like Dates and Culture at a high level.

You may need to manage timezones, utc vs localized time, currency formats etc. with each service interface there is also a provided standard singleton that defers usage to what it would have been in the most common hard coded case.

In the case of time

IDateService date = UtcDateService.Instance;

calling date.CurrentDate will return the same as DateTime.UtcNow but give you the freedom of mocking and providing alternate implementations.

similarly with culture

ICultureService culture = CultureService.Instance;

calling culture.CurrentCulture will return the same as CultureInfo.CurrentCulture.

For most services there is also a Constant service implementation provided in case you would like to hard code the value to a statically provided one you control.

For Dates e.g:

IDateService date = new ConstantDateService(new DateTime(2015,10,21));

calling date.CurrentDate will return the above date regardless of what date your delorean is set to.