public void GetIfCached_HandlesException()
{
// Arrange
var key = Guid.NewGuid().ToString();
var cache = Substitute.For <ICache>();
cache.GetIfCached(key, out Arg.Any <AClass>()).Throws(new Exception());
var logger = Substitute.For <ILogger <ExceptionHandlingCacheDecorator> >();
var decorator = new ExceptionHandlingCacheDecorator(cache, logger);
// Act
var result = decorator.GetIfCached <AClass>(key, out var value);
// Assert
Assert.IsFalse(result);
Assert.IsNull(value);
}
public void GetIfCached_ReturnsCachedValue()
{
// Arrange
var key = Guid.NewGuid().ToString();
var cachedValue = new AClass();
var cache = Substitute.For <ICache>();
cache.GetIfCached(key, out Arg.Any <AClass>()).Returns(x =>
{
x[1] = cachedValue;
return(true);
});
var logger = Substitute.For <ILogger <ExceptionHandlingCacheDecorator> >();
var decorator = new ExceptionHandlingCacheDecorator(cache, logger);
// Act
var result = decorator.GetIfCached <AClass>(key, out var value);
// Assert
Assert.IsTrue(result);
Assert.AreEqual(cachedValue, value);
}