40 lines
1.5 KiB
JavaScript
40 lines
1.5 KiB
JavaScript
import assert from 'assert'
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import math from '../picomath.js'
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import picoInstance from '../picomathInstance.js'
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import createNumbers from '../number/all.js'
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import createNumber from '../number/number.js'
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import createAdd from '../number/add.js'
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import createComplex from '../complex/all.js'
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import extendByComplex from '../complex/extendByComplex.js'
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describe('Custom instances', () => {
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it("doesn't matter what order you assemble", () => {
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const bw = picoInstance('backwards')
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createComplex(bw)
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createNumbers(bw)
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assert.strictEqual(bw.subtract(16, bw.add(3,4,2)), 7)
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assert.strictEqual(bw.negate(bw.number('8')), -8)
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assert.deepStrictEqual(bw.complex(2,3), {re: 2, im: 3})
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assert.deepStrictEqual(
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bw.subtract(16, bw.add(3, bw.complex(0,4), 2)),
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math.complex(11, -4)) // note both instances coexist
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assert.deepStrictEqual(bw.negate(math.complex(3, '8')).im, -8)
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})
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it("can selectively import in cute ways", async function () {
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const cherry = picoInstance('cherry')
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createNumber(cherry)
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createAdd(cherry)
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await extendByComplex(cherry)
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// Now we have an instance that supports addition for number and complex
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// and little else:
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assert.strictEqual(cherry.add(3, 4, 2), 9)
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assert.deepStrictEqual(
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cherry.add(cherry.complex(3, 3), 4, cherry.complex(2, 2)),
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math.complex(9,5))
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assert.strictEqual('subtract' in cherry, false)
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assert.strictEqual('negate' in cherry, false)
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})
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})
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