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| import { systems, toMetric } from '../../classes/Units';
|
| describe('Metric system', () => {
| it('it should display units properly', () => {
|
| const { metric } = systems;
|
| const lengths = [
| [1, "1 m"],
| [0.01, "1 cm"],
| [0.0154, "1.5 cm"],
| [0.99, "99 cm"],
| [0.995555, "99.6 cm"],
| [1.01, "1.01 m"],
| [999, "999 m"],
| [1000, "1 km"],
| [1001, "1.001 km"],
| [1000010, "1,000.01 km"],
| [1000012.349, "1,000.01235 km"],
| ];
|
| lengths.forEach(l => {
| expect(metric.length(l[0]).toString()).toBe(l[1]);
| });
|
| const areas = [
| [1, "1 m²"],
| [9999, "9,999 m²"],
| [10000, "1 ha"],
| [11005, "1.1005 ha"],
| [11005, "1.1005 ha"],
| [999999, "99.9999 ha"],
| [1000000, "1 km²"],
| [1000000000, "1,000 km²"],
| [1000255558, "1,000.25556 km²"]
| ];
|
| areas.forEach(a => {
| expect(metric.area(a[0]).toString()).toBe(a[1]);
| });
|
| const volumes = [
| [1, "1 m³"],
| [9000, "9,000 m³"],
| [9000.25559, "9,000.2556 m³"],
| ];
|
| volumes.forEach(v => {
| expect(metric.volume(v[0]).toString()).toBe(v[1]);
| });
|
| expect(metric.area(11005.09, { fixedUnit: true }).toString({precision: 1})).toBe("11,005.1 m²");
|
| const temperatures = [
| [1, "1 °C"],
| [100.255, "100.3 °C"]
| ];
|
| temperatures.forEach(v => {
| expect(metric.temperature(v[0]).toString()).toBe(v[1]);
| });
| })
| });
|
| describe('Imperial systems', () => {
| it('it should display units properly', () => {
|
| const { imperial, imperialUS } = systems;
|
| const lengths = [
| [1, "3.2808 ft", "3.2808 ft (US)"],
| [0.01, "0.0328 ft", "0.0328 ft (US)"],
| [0.0154, "0.0505 ft", "0.0505 ft (US)"],
| [1609, "5,278.8714 ft", "5,278.8608 ft (US)"],
| [1609.344, "1 mi", "5,279.9894 ft (US)"],
| [1609.3472187, "1 mi", "1 mi (US)"],
| [3218.69, "2 mi", "2 mi (US)"]
| ];
|
| lengths.forEach(l => {
| expect(imperial.length(l[0]).toString()).toBe(l[1]);
| expect(imperialUS.length(l[0]).toString()).toBe(l[2]);
| });
|
| const areas = [
| [1, "10.76 ft²", "10.76 ft² (US)"],
| [9999, "2.47081 ac", "2.4708 ac (US)"],
| [4046.86, "1 ac", "43,559.86 ft² (US)"],
| [4046.87261, "1 ac", "1 ac (US)"],
| [2587398.1, "639.35999 ac", "639.35744 ac (US)"],
| [2.59e+6, "1 mi²", "1 mi² (US)"]
| ];
|
| areas.forEach(a => {
| expect(imperial.area(a[0]).toString()).toBe(a[1]);
| expect(imperialUS.area(a[0]).toString()).toBe(a[2]);
| });
|
| const volumes = [
| [1, "1.308 yd³", "1.3079 yd³ (US)"],
| [1000, "1,307.9506 yd³", "1,307.9428 yd³ (US)"]
| ];
|
| volumes.forEach(v => {
| expect(imperial.volume(v[0]).toString()).toBe(v[1]);
| expect(imperialUS.volume(v[0]).toString()).toBe(v[2]);
| });
|
| expect(imperial.area(9999, { fixedUnit: true }).toString({precision: 1})).toBe("107,628.3 ft²");
|
| const temperatures = [
| [1, "33.8 °F"],
| [100.255, "212.5 °F"]
| ];
|
| temperatures.forEach(v => {
| expect(imperial.temperature(v[0]).toString()).toBe(v[1]);
| });
| });
| });
|
| describe('Metric conversion', () => {
| it('it should convert units properly', () => {
| const { metric, imperial } = systems;
|
| const km = metric.length(2000);
| const mi = imperial.length(3220);
|
| expect(km.unit.abbr).toBe("km");
| expect(km.value).toBe(2);
| expect(mi.unit.abbr).toBe("mi");
| expect(Math.round(mi.value)).toBe(2)
|
| expect(toMetric(km).toString()).toBe("2,000 m");
| expect(toMetric(mi).toString()).toBe("3,220 m");
|
| expect(toMetric(km).value).toBe(2000);
| expect(toMetric(mi).value).toBe(3220);
|
| const celsius = metric.temperature(50);
| const fahrenheit = imperial.temperature(50);
|
| expect(celsius.unit.abbr).toBe("°C");
| expect(fahrenheit.unit.abbr).toBe("°F");
| expect(toMetric(celsius).value).toBe(50);
| expect(toMetric(fahrenheit).value).toBe(50);
| });
| });
|
|
