40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
//! Tests for thermodynamic temperature quantities.
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use apsis_core::Unit;
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use apsis_core::constant::ZERO_CELSIUS_IN_KELVIN;
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use apsis_units::Kelvin;
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use apsis_units::dimension::Temperature;
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#[test]
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fn stores_the_given_value() {
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assert_eq!(Kelvin::new(290.0).value(), 290.0);
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}
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#[test]
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fn celsius_conversion_uses_the_exact_offset() {
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let freezing = Kelvin::from_celsius(0.0);
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assert_eq!(freezing.value(), ZERO_CELSIUS_IN_KELVIN);
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assert_eq!(freezing.to_celsius(), 0.0);
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let boiling = Kelvin::from_celsius(100.0);
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assert!((boiling.to_celsius() - 100.0).abs() < 1e-12);
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}
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#[test]
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fn celsius_conversion_round_trips() {
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let original = Kelvin::new(273.15 + 21.5);
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assert!((Kelvin::from_celsius(original.to_celsius()).value() - original.value()).abs() < 1e-12);
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}
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#[test]
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fn unit_metadata_is_available() {
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assert_eq!(Kelvin::symbol(), "K");
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assert_eq!(Kelvin::factor_to_base(), 1.0);
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fn assert_temperature<U: Unit<Dimension = Temperature>>() {}
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assert_temperature::<Kelvin>();
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}
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#[test]
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fn display_includes_the_symbol() {
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assert_eq!(Kelvin::new(300.0).to_string(), "300 K");
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}
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