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use minimal_lexical::number::Number;
#[test]
fn is_fast_path_test() {
let mut number = Number {
exponent: -4,
mantissa: 12345,
many_digits: false,
};
assert_eq!(number.is_fast_path::<f32>(), true);
assert_eq!(number.is_fast_path::<f64>(), true);
number.exponent = -15;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), true);
number.exponent = -25;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), false);
number.exponent = 25;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), true);
number.exponent = 36;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), true);
number.exponent = 38;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), false);
number.mantissa = 1 << 25;
number.exponent = 0;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), true);
number.mantissa = 1 << 54;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), false);
number.mantissa = 1 << 52;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), true);
number.many_digits = true;
assert_eq!(number.is_fast_path::<f32>(), false);
assert_eq!(number.is_fast_path::<f64>(), false);
}
#[test]
fn try_fast_path_test() {
let mut number = Number {
exponent: -4,
mantissa: 12345,
many_digits: false,
};
assert_eq!(number.try_fast_path::<f32>(), Some(1.2345));
assert_eq!(number.try_fast_path::<f64>(), Some(1.2345));
number.exponent = -10;
assert_eq!(number.try_fast_path::<f32>(), Some(1.2345e-6));
assert_eq!(number.try_fast_path::<f64>(), Some(1.2345e-6));
number.exponent = -20;
assert_eq!(number.try_fast_path::<f32>(), None);
assert_eq!(number.try_fast_path::<f64>(), Some(1.2345e-16));
number.exponent = -25;
assert_eq!(number.try_fast_path::<f32>(), None);
assert_eq!(number.try_fast_path::<f64>(), None);
number.exponent = 12;
assert_eq!(number.try_fast_path::<f32>(), Some(1.2345e16));
assert_eq!(number.try_fast_path::<f64>(), Some(1.2345e16));
number.exponent = 25;
assert_eq!(number.try_fast_path::<f32>(), None);
assert_eq!(number.try_fast_path::<f64>(), Some(1.2345e29));
number.exponent = 32;
assert_eq!(number.try_fast_path::<f32>(), None);
assert_eq!(number.try_fast_path::<f64>(), Some(1.2345e36));
number.exponent = 36;
assert_eq!(number.try_fast_path::<f32>(), None);
assert_eq!(number.try_fast_path::<f64>(), None);
}
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