public void FunctionExtention_CombinePredicates_Should_Combine_Single_Predicates()
{
var result = FunctionExtentions.CombinePredicates(new Predicate <int>[] {
x => x > 0,
});
Assert.IsTrue(result(2));
Assert.IsTrue(result(5));
Assert.IsTrue(result(1000));
Assert.IsFalse(result(-20));
Assert.IsFalse(result(0));
Assert.IsFalse(result(-1000));
}
public void FunctionExtention_CombinePredicates_Should_Combine_Int_Predicates()
{
var result = FunctionExtentions.CombinePredicates(new Predicate <int>[] {
x => x > -10,
x => x < 10,
x => x != 0,
x => x != 1
});
Assert.IsTrue(result(2));
Assert.IsTrue(result(-5));
Assert.IsTrue(result(9));
Assert.IsFalse(result(-20));
Assert.IsFalse(result(0));
Assert.IsFalse(result(1));
}
public void FunctionExtention_CombinePredicates_Should_Combine_String_Predicates()
{
var result = FunctionExtentions.CombinePredicates(new Predicate <string>[] {
x => !string.IsNullOrEmpty(x),
x => x.StartsWith("START"),
x => x.EndsWith("END"),
x => x.Contains("#")
});
Assert.IsTrue(result("START # END"));
Assert.IsTrue(result("START######END"));
Assert.IsTrue(result("START 1111#1111 END"));
Assert.IsFalse(result("START END"));
Assert.IsFalse(result(string.Empty));
Assert.IsFalse(result("START #"));
}