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59 lines
1.3 KiB
59 lines
1.3 KiB
5 years ago
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const is = {}
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// /*/ // ⚡
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export const tests = []
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const t = (f) => tests.push(f)
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// your functions are all tested against all these values:
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export const setup = () => [
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0,
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NaN,
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true,
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'',
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'💩',
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undefined,
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t,
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[],
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{},
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[1, Array(1), [], 2],
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{ length: 10 },
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Object.create(null),
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null,
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console.log,
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void 0,
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]
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const match = ({ eq, ctx }, fun, values) => eq(ctx.filter(fun), values)
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// the array of value here is the ones that your function should
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// return true too, while returning false to every others.
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t((_) => match(_, is.num, [0, NaN]))
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t((_) => match(_, is.nan, [NaN]))
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t((_) => match(_, is.str, ['', '💩']))
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t((_) => match(_, is.bool, [true]))
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t((_) => match(_, is.undef, [undefined, undefined]))
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t((_) => match(_, is.arr, [[], [1, Array(1), [], 2]]))
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t((_) => match(_, is.obj, [{}, { length: 10 }, Object.create(null)]))
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t((_) => match(_, is.fun, [t, console.log]))
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t((_) => match(_, is.falsy, [0, NaN, '', undefined, null, void 0]))
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// is.def
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t(({ ctx }) => !ctx.filter(is.def).includes(undefined))
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t(({ ctx }) => ctx.filter(is.def).length === ctx.length - 2)
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// is.truthy
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t((_) =>
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match(_, is.truthy, [
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true,
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'💩',
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t,
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[],
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{},
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[1, Array(1), [], 2],
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{ length: 10 },
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Object.create(null),
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console.log,
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]),
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)
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Object.freeze(tests)
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