temp-converter 2.0.9

Simple terminal temperature unit converter between Celsius, Fahrenheit and Kelvin.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143

pub trait TemperatureConversion {
    fn kelvin_to_celsius(&self) -> Self
    where
        Self: Sized;

    fn kelvin_to_fahrenheit(&self) -> Self
    where
        Self: Sized;

    fn celsius_to_kelvin(&self) -> Self
    where
        Self: Sized;

    fn celsius_to_fahrenheit(&self) -> Self
    where
        Self: Sized;

    fn fahrenheit_to_kelvin(&self) -> Self
    where
        Self: Sized;

    fn fahrenheit_to_celsius(&self) -> Self
    where
        Self: Sized;
}

impl TemperatureConversion for f32 {
    fn kelvin_to_celsius(&self) -> Self {
        self - 273.15
    }

    fn kelvin_to_fahrenheit(&self) -> Self {
        (self - 273.15) * (9_f32 / 5_f32) + 32_f32
    }

    fn celsius_to_kelvin(&self) -> Self {
        self + 273.15
    }

    fn celsius_to_fahrenheit(&self) -> Self {
        self * (9_f32 / 5_f32) + 32_f32
    }

    fn fahrenheit_to_kelvin(&self) -> Self {
        (self - 32_f32) * (5_f32 / 9_f32) + 273.15
    }

    fn fahrenheit_to_celsius(&self) -> Self {
        (self - 32_f32) * (5_f32 / 9_f32)
    }
}

impl TemperatureConversion for f64 {
    fn kelvin_to_celsius(&self) -> Self {
        self - 273.15
    }

    fn kelvin_to_fahrenheit(&self) -> Self {
        (self - 273.15) * (9_f64 / 5_f64) + 32_f64
    }

    fn celsius_to_kelvin(&self) -> Self {
        self + 273.15
    }

    fn celsius_to_fahrenheit(&self) -> Self {
        self * (9_f64 / 5_f64) + 32_f64
    }

    fn fahrenheit_to_kelvin(&self) -> Self {
        (self - 32_f64) * (5_f64 / 9_f64) + 273.15
    }

    fn fahrenheit_to_celsius(&self) -> Self {
        (self - 32_f64) * (5_f64 / 9_f64)
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use rstest::rstest;

    #[rstest]
    #[case(0.0, -273.15)]
    #[case(100.0, -173.15)]
    #[case(1000.0, 726.85)]
    #[case(5000.0, 4726.85)]
    #[case(69_420.0, 69_146.85)]
    fn test_kelvin_to_celsius(#[case] input: f32, #[case] output: f32) {
        assert_eq!(input.kelvin_to_celsius(), output);
    }

    #[rstest]
    #[case(0.0, -459.66998)]
    #[case(100.0, -279.66998)]
    #[case(1000.0, 1340.33)]
    #[case(5000.0, 8540.33)]
    #[case(69_420.0, 124_496.33)]
    fn test_kelvin_to_fahrenheit(#[case] input: f32, #[case] output: f32) {
        assert_eq!(input.kelvin_to_fahrenheit(), output);
    }

    #[rstest]
    #[case(0.0, 273.15)]
    #[case(100.0, 373.15)]
    #[case(1000.0, 1273.15)]
    #[case(5000.0, 5273.15)]
    #[case(69_420.0, 69_693.15)]
    fn test_celsius_to_kelvin(#[case] input: f32, #[case] output: f32) {
        assert_eq!(input.celsius_to_kelvin(), output);
    }

    #[rstest]
    #[case(0.0, 32.0)]
    #[case(100.0, 212.0)]
    #[case(1000.0, 1832.0)]
    #[case(5000.0, 9032.0)]
    #[case(69_420.0, 124_988.0)]
    fn test_celsius_to_fahrenheit(#[case] input: f32, #[case] output: f32) {
        assert_eq!(input.celsius_to_fahrenheit(), output);
    }

    #[rstest]
    #[case(0.0, 255.37222)]
    #[case(100.0, 310.92776)]
    #[case(1000.0, 810.92786)]
    #[case(5000.0, 3033.1501)]
    #[case(69_420.0, 38_822.04)]
    fn test_fahrenheit_to_kelvin(#[case] input: f32, #[case] output: f32) {
        assert_eq!(input.fahrenheit_to_kelvin(), output);
    }

    #[rstest]
    #[case(0.0, -17.777_779)]
    #[case(100.0, 37.77778)]
    #[case(1000.0, 537.77783)]
    #[case(5000.0, 2_760.0002)]
    #[case(69_420.0, 38_548.89)]
    fn test_fahrenheit_to_celsius(#[case] input: f32, #[case] output: f32) {
        assert_eq!(input.fahrenheit_to_celsius(), output);
    }
}