63 lines
1.9 KiB
TypeScript
63 lines
1.9 KiB
TypeScript
import { BitFlagSet } from '~'
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describe(BitFlagSet, () => {
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test('none', () => {
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const flags = new BitFlagSet()
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expect(flags.none()).toEqual(0)
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})
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test('union', () => {
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const flags = new BitFlagSet()
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expect(flags.union(0, 0)).toEqual(0)
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expect(flags.union(1, 0)).toEqual(1)
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expect(flags.union(0, 2)).toEqual(2)
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expect(flags.union(1, 2)).toEqual(3)
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expect(flags.union(3, 6)).toEqual(7)
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})
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test('difference', () => {
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const flags = new BitFlagSet()
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expect(flags.difference(0, 0)).toEqual(0)
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expect(flags.difference(1, 0)).toEqual(1)
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expect(flags.difference(3, 6)).toEqual(1)
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expect(flags.difference(6, 3)).toEqual(4)
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expect(flags.difference(8, 17)).toEqual(8)
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})
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test('intersection', () => {
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const flags = new BitFlagSet()
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expect(flags.intersection(0, 0)).toEqual(0)
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expect(flags.intersection(1, 0)).toEqual(0)
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expect(flags.intersection(1, 2)).toEqual(0)
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expect(flags.intersection(1, 3)).toEqual(1)
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expect(flags.intersection(11, 5)).toEqual(1)
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expect(flags.intersection(11, 7)).toEqual(3)
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})
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test('isSuperset', () => {
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const flags = new BitFlagSet()
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expect(flags.isSuperset(0, 0)).toBe(true)
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expect(flags.isSuperset(3, 0)).toBe(true)
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expect(flags.isSuperset(3, 1)).toBe(true)
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expect(flags.isSuperset(3, 3)).toBe(true)
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expect(flags.isSuperset(0, 3)).toBe(false)
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expect(flags.isSuperset(8, 4)).toBe(false)
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})
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test('enumerate', () => {
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const flags = new BitFlagSet()
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expect([...flags.enumerate(0)]).toEqual([])
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expect([...flags.enumerate(1)]).toEqual([1])
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expect([...flags.enumerate(2)]).toEqual([2])
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expect([...flags.enumerate(3)]).toEqual([1, 2])
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expect([...flags.enumerate(11)]).toEqual([1, 2, 8])
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expect([...flags.enumerate(100)]).toEqual([4, 32, 64])
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})
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})
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