public void GivenDelegateThatReturnsStaticValue_WhenKeyRequested_ThenReturnStaticValue()
{
// Arrange
Func <string> staticKey = () => "key";
var sut = new LambdaBasedCacheKeyGenerator(staticKey);
// Act
var result = sut.GetKey();
// Assert
Assert.Equal("key", result);
}
public void GivenDelegateThatReturnsValueBasedOnMultipleArguments_WhenKeyRequested_ThenReturnCorrectCombination(
int paramDigit, string paramValue, string expectedValue)
{
// Arrange
Func <int, string, string> calculatedKey = (digit, value) => $"{value}_{digit * 2}";
var sut = new LambdaBasedCacheKeyGenerator(calculatedKey);
// Act
var result = sut.GetKey(paramDigit, paramValue);
// Assert
Assert.Equal(expectedValue, result);
}