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separate tests
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@ -1095,8 +1095,9 @@ mod tests {
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assert_eq!(format!("{d}"), "-0.25");
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}
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#[test]
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fn formats_precision_correctly() {
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mod precision {
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use super::*;
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macro_rules! num_ {
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($n: literal) => {{
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let a: Num<i32, 20> = num!($n);
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@ -1104,24 +1105,39 @@ mod tests {
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}};
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}
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assert_eq!(format!("{:.2}", num_!(1.2345678)), "1.23");
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assert_eq!(format!("{:.2}", num_!(1.237)), "1.24");
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assert_eq!(format!("{:.2}", num_!(-1.237)), "-1.24");
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macro_rules! test_precision {
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($TestName: ident, $Number: literal, $Expected: literal) => {
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test_precision! { $TestName, $Number, $Expected, 2 }
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};
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($TestName: ident, $Number: literal, $Expected: literal, $Digits: literal) => {
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#[test]
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fn $TestName() {
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assert_eq!(
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format!("{:.width$}", num_!($Number), width = $Digits),
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$Expected
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);
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}
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};
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}
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assert_eq!(format!("{:.2}", num_!(1.5)), "1.50");
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assert_eq!(format!("{:.2}", num_!(1.05)), "1.05");
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test_precision!(positive_down, 1.2345678, "1.23");
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test_precision!(positive_round_up, 1.237, "1.24");
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test_precision!(negative_round_down, -1.237, "-1.24");
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assert_eq!(format!("{:.2}", num_!(3.999)), "4.00");
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assert_eq!(format!("{:.2}", num_!(-3.999)), "-4.00");
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test_precision!(trailing_zero, 1.5, "1.50");
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test_precision!(leading_zero, 1.05, "1.05");
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assert_eq!(format!("{:.2}", num_!(-0.999)), "-1.00");
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assert_eq!(format!("{:.2}", num_!(0.999)), "1.00");
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test_precision!(positive_round_to_next_integer, 3.999, "4.00");
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test_precision!(negative_round_to_next_integer, -3.999, "-4.00");
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assert_eq!(format!("{:.2}", num_!(0.001)), "0.00");
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assert_eq!(format!("{:.2}", num_!(-0.001)), "0.00");
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test_precision!(negative_round_to_1, -0.999, "-1.00");
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test_precision!(positive_round_to_1, 0.999, "1.00");
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assert_eq!(format!("{:.0}", num_!(-0.001)), "0");
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assert_eq!(format!("{:.0}", num_!(-0.001)), "0");
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test_precision!(positive_round_to_zero, 0.001, "0.00");
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test_precision!(negative_round_to_zero, -0.001, "0.00");
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test_precision!(zero_precision_negative, -0.001, "0", 0);
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test_precision!(zero_precision_positive, 0.001, "0", 0);
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}
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#[test]
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