import { describe, test, expect, Result } from './tests.uts'

export function testNumber(): Result {
    return describe("Number", () => {
        test('toFixed', () => {
            function financial(x: Number): String {
              return x.toFixed(2);
            }
            expect(financial(123.456)).toEqual('123.46');
            expect(financial(0.004)).toEqual("0.00");
            expect(financial(0)).toEqual("0.00");
            expect(financial(1)).toEqual("1.00");
        })
		
		test('parseInt', () => {
		    expect(parseInt("123.456")).toEqual(123);
		})
		test('parseFloat', () => {
			expect(parseFloat("11.20")).toEqual(11.2);
		})
		
		test('isFinite', () => {
		    expect(isFinite(1000 / 1)).toEqual(true);
			expect(isFinite(910)).toEqual(true);
			expect(isFinite(0)).toEqual(true);
		})
		
		test('isNaN', () => {
			expect(isNaN(0)).toEqual(false);
		})
		
		test('toPrecision', () => {
			expect(123.456.toPrecision(4)).toEqual("123.5");
			expect(0.004.toPrecision(4)).toEqual("0.004000");
			expect(1.23e5.toPrecision(4)).toEqual("1.230e+5");
		})
		
    })
}