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| 1 | +import { LazyBase } from "../../src/main"; |
| 2 | + |
| 3 | +describe("simple class", () => { |
| 4 | + it("add", () => { |
| 5 | + const base = LazyBase.lazy(1).add(4); |
| 6 | + expect(base.value()).toBe(5); |
| 7 | + }); |
| 8 | + |
| 9 | + it("subtract", () => { |
| 10 | + const base = LazyBase.lazy(1).subtract(4); |
| 11 | + expect(base.value()).toBe(-3); |
| 12 | + }); |
| 13 | + |
| 14 | + it("multiply", () => { |
| 15 | + const base = LazyBase.lazy(1).multiply(4); |
| 16 | + expect(base.value()).toBe(4); |
| 17 | + }); |
| 18 | + it("multiply - float", () => { |
| 19 | + const base = LazyBase.lazy(1.5).multiply(4); |
| 20 | + expect(base.value()).toBe(6); |
| 21 | + }); |
| 22 | + |
| 23 | + it("divide - round", () => { |
| 24 | + const base = LazyBase.lazy(1.5) |
| 25 | + .divide(2) |
| 26 | + .round(2); |
| 27 | + expect(base.value()).toBe(0.75); |
| 28 | + }); |
| 29 | + |
| 30 | + it("divide - floor", () => { |
| 31 | + const base = LazyBase.lazy(1.5) |
| 32 | + .divide(2) |
| 33 | + .floor(1); |
| 34 | + expect(base.value()).toBe(0.7); |
| 35 | + }); |
| 36 | + it("divide - ceil", () => { |
| 37 | + const base = LazyBase.lazy(1.5) |
| 38 | + .divide(2) |
| 39 | + .ceil(1); |
| 40 | + expect(base.value()).toBe(0.8); |
| 41 | + }); |
| 42 | + |
| 43 | + it("precision - invalid", () => { |
| 44 | + const base = LazyBase.lazy(1.5) |
| 45 | + .divide(0) |
| 46 | + .ceil(1) |
| 47 | + .default("m"); |
| 48 | + expect(base.value()).toBe("m"); |
| 49 | + }); |
| 50 | + |
| 51 | + it("precision - minus", () => { |
| 52 | + const base = LazyBase.lazy(1.5) |
| 53 | + .divide(1) |
| 54 | + .ceil(-2) |
| 55 | + .default("m"); |
| 56 | + expect(base.value()).toBe(100); |
| 57 | + }); |
| 58 | + it("precision - null", () => { |
| 59 | + const base = LazyBase.lazy(1.5) |
| 60 | + .divide(1) |
| 61 | + .ceil() |
| 62 | + .default("m"); |
| 63 | + expect(base.value()).toBe(2); |
| 64 | + }); |
| 65 | + it("default", () => { |
| 66 | + const base = LazyBase.lazy(1.5) |
| 67 | + .divide(0) |
| 68 | + .default(99); |
| 69 | + expect(base.value()).toBe(99); |
| 70 | + }); |
| 71 | + |
| 72 | + it("do", () => { |
| 73 | + const base = LazyBase.lazy({ num: 1.5 }) |
| 74 | + .do((x: { num: number }) => x.num) |
| 75 | + .multiply(2); |
| 76 | + expect(base.value()).toBe(3); |
| 77 | + }); |
| 78 | +}); |
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