use fluent_assertions::*;

pub type Result<T> = core::result::Result<T, Error>;
pub type Error = Box<dyn std::error::Error>;

fn main() {
    let message = "hello world";
    message.should().start_with("hello");

    let message = "hello world";
    message.should().be("hello world");

    let is_verified = true;
    is_verified.should().be_true();

    let anwser: i32 = 42;
    anwser.should().be_greater_than(40);

    let anwser: f64 = 42.0;
    anwser.should().be_greater_than(40.0);

    let result: Result<f64> = Ok(42f64);
    result.should().be_ok();

    let result: Result<()> = Err(Error::from("Error message"));
    result.should().be_err();
}