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176 lines
8.6 KiB
JavaScript
176 lines
8.6 KiB
JavaScript
// test leftShift
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import assert from 'assert'
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import math from '../../../../src/bundleAny'
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const matrix = math.matrix
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const sparse = math.sparse
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const bignumber = math.bignumber
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const leftShift = math.leftShift
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describe('leftShift', function () {
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it('should left shift a number by a given amount', function () {
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assert.strictEqual(leftShift(0, 1000), 0)
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assert.strictEqual(leftShift(2, 0), 2)
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assert.strictEqual(leftShift(2, 3), 16)
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assert.strictEqual(leftShift(2, 4), 32)
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assert.strictEqual(leftShift(-2, 2), -8)
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assert.strictEqual(leftShift(3, 3), 24)
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assert.strictEqual(leftShift(-3, 2), -12)
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assert.strictEqual(leftShift(-3, 3), -24)
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})
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it('should left shift booleans by a boolean amount', function () {
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assert.strictEqual(leftShift(true, true), 2)
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assert.strictEqual(leftShift(true, false), 1)
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assert.strictEqual(leftShift(false, true), 0)
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assert.strictEqual(leftShift(false, false), 0)
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})
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it('should left shift with a mix of numbers and booleans', function () {
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assert.strictEqual(leftShift(2, true), 4)
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assert.strictEqual(leftShift(2, false), 2)
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assert.strictEqual(leftShift(true, 2), 4)
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assert.strictEqual(leftShift(false, 2), 0)
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})
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it('should left shift bignumbers', function () {
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assert.deepStrictEqual(leftShift(bignumber(2), bignumber(3)), bignumber(16))
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assert.deepStrictEqual(leftShift(bignumber(500), bignumber(100)), bignumber('633825300114114700748351602688000'))
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assert.deepStrictEqual(leftShift(bignumber(-1), bignumber(2)), bignumber(-4))
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assert.strictEqual(leftShift(bignumber(0), bignumber(-2)).isNaN(), true)
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assert.deepStrictEqual(leftShift(bignumber(Infinity), bignumber(2)).toString(), 'Infinity')
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assert.strictEqual(leftShift(bignumber(Infinity), bignumber(Infinity)).isNaN(), true)
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})
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it('should left shift mixed numbers and bignumbers', function () {
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assert.deepStrictEqual(leftShift(bignumber(2), 3), bignumber(16))
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assert.deepStrictEqual(leftShift(bignumber(500), 100), bignumber('633825300114114700748351602688000'))
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assert.deepStrictEqual(leftShift(2, bignumber(3)), bignumber(16))
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assert.deepStrictEqual(leftShift(-1, bignumber(2)), bignumber(-4))
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assert.deepStrictEqual(leftShift(bignumber(-1), 2), bignumber(-4))
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assert.strictEqual(leftShift(bignumber(0), -2).isNaN(), true)
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assert.strictEqual(leftShift(bignumber(Infinity), Infinity).isNaN(), true)
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})
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it('should left shift mixed booleans and bignumbers', function () {
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assert.deepStrictEqual(leftShift(true, bignumber(3)), bignumber(8))
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assert.deepStrictEqual(leftShift(false, bignumber(3)), bignumber(0))
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assert.deepStrictEqual(leftShift(bignumber(3), false), bignumber(3))
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assert.deepStrictEqual(leftShift(bignumber(3), true), bignumber(6))
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})
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it('should throw an error if used with a unit', function () {
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assert.throws(function () { leftShift(math.unit('5cm'), 2) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { leftShift(2, math.unit('5cm')) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { leftShift(math.unit('2cm'), math.unit('5cm')) }, /TypeError: Unexpected type of argument/)
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})
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it('should throw an error if the parameters are not integers', function () {
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assert.throws(function () {
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leftShift(1.1, 1)
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}, /Integers expected in function leftShift/)
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assert.throws(function () {
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leftShift(1, 1.1)
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}, /Integers expected in function leftShift/)
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assert.throws(function () {
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leftShift(1.1, 1.1)
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}, /Integers expected in function leftShift/)
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assert.throws(function () {
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leftShift(bignumber(1.1), 1)
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}, /Integers expected in function leftShift/)
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assert.throws(function () {
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leftShift(1, bignumber(1.1))
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}, /Integers expected in function leftShift/)
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assert.throws(function () {
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leftShift(bignumber(1.1), bignumber(1))
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}, /Integers expected in function leftShift/)
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assert.throws(function () {
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leftShift(bignumber(1), bignumber(1.1))
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}, /Integers expected in function leftShift/)
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})
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describe('Array', function () {
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it('should left shift array and scalar', function () {
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assert.deepStrictEqual(leftShift([[1, 2], [8, 0]], 2), [[4, 8], [32, 0]])
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assert.deepStrictEqual(leftShift(2, [[1, 2], [8, 0]]), [[4, 8], [512, 2]])
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})
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it('should left shift array - array', function () {
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assert.deepStrictEqual(leftShift([[1, 2], [8, 0]], [[4, 8], [32, 0]]), [[16, 512], [8, 0]])
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assert.deepStrictEqual(leftShift([[4, 8], [32, 0]], [[1, 2], [8, 0]]), [[8, 32], [8192, 0]])
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})
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it('should left shift array - dense matrix', function () {
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assert.deepStrictEqual(leftShift([[1, 2], [8, 0]], matrix([[4, 8], [32, 0]])), matrix([[16, 512], [8, 0]]))
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assert.deepStrictEqual(leftShift([[4, 8], [32, 0]], matrix([[1, 2], [8, 0]])), matrix([[8, 32], [8192, 0]]))
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})
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it('should left shift array - sparse matrix', function () {
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assert.deepStrictEqual(leftShift([[1, 2], [8, 0]], sparse([[4, 8], [32, 0]])), matrix([[16, 512], [8, 0]]))
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assert.deepStrictEqual(leftShift([[4, 8], [32, 0]], sparse([[1, 2], [8, 0]])), matrix([[8, 32], [8192, 0]]))
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})
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})
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describe('DenseMatrix', function () {
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it('should left shift dense matrix and scalar', function () {
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assert.deepStrictEqual(leftShift(matrix([[1, 2], [8, 0]]), 2), matrix([[4, 8], [32, 0]]))
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assert.deepStrictEqual(leftShift(2, matrix([[1, 2], [8, 0]])), matrix([[4, 8], [512, 2]]))
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})
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it('should left shift dense matrix - array', function () {
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assert.deepStrictEqual(leftShift(matrix([[1, 2], [8, 0]]), [[4, 8], [32, 0]]), matrix([[16, 512], [8, 0]]))
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assert.deepStrictEqual(leftShift(matrix([[4, 8], [32, 0]]), [[1, 2], [8, 0]]), matrix([[8, 32], [8192, 0]]))
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})
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it('should left shift dense matrix - dense matrix', function () {
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assert.deepStrictEqual(leftShift(matrix([[1, 2], [8, 0]]), matrix([[4, 8], [32, 0]])), matrix([[16, 512], [8, 0]]))
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assert.deepStrictEqual(leftShift(matrix([[4, 8], [32, 0]]), matrix([[1, 2], [8, 0]])), matrix([[8, 32], [8192, 0]]))
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})
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it('should left shift dense matrix - sparse matrix', function () {
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assert.deepStrictEqual(leftShift(matrix([[1, 2], [8, 0]]), sparse([[4, 8], [32, 0]])), matrix([[16, 512], [8, 0]]))
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assert.deepStrictEqual(leftShift(matrix([[4, 8], [32, 0]]), sparse([[1, 2], [8, 0]])), matrix([[8, 32], [8192, 0]]))
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})
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})
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describe('SparseMatrix', function () {
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it('should left shift sparse matrix and scalar', function () {
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assert.deepStrictEqual(leftShift(sparse([[1, 2], [8, 0]]), 2), sparse([[4, 8], [32, 0]]))
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assert.deepStrictEqual(leftShift(2, sparse([[1, 2], [8, 0]])), matrix([[4, 8], [512, 2]]))
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})
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it('should left shift sparse matrix - array', function () {
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assert.deepStrictEqual(leftShift(sparse([[1, 2], [8, 0]]), [[4, 8], [32, 0]]), sparse([[16, 512], [8, 0]]))
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assert.deepStrictEqual(leftShift(sparse([[4, 8], [32, 0]]), [[1, 2], [8, 0]]), sparse([[8, 32], [8192, 0]]))
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})
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it('should left shift sparse matrix - dense matrix', function () {
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assert.deepStrictEqual(leftShift(sparse([[1, 2], [8, 0]]), matrix([[4, 8], [32, 0]])), sparse([[16, 512], [8, 0]]))
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assert.deepStrictEqual(leftShift(sparse([[4, 8], [32, 0]]), matrix([[1, 2], [8, 0]])), sparse([[8, 32], [8192, 0]]))
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})
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it('should left shift sparse matrix - sparse matrix', function () {
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assert.deepStrictEqual(leftShift(sparse([[1, 2], [8, 0]]), sparse([[4, 8], [32, 0]])), sparse([[16, 512], [8, 0]]))
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assert.deepStrictEqual(leftShift(sparse([[4, 8], [32, 0]]), sparse([[1, 2], [8, 0]])), sparse([[8, 32], [8192, 0]]))
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})
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})
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it('should throw an error if used with wrong number of arguments', function () {
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assert.throws(function () { leftShift(1) }, /TypeError: Too few arguments/)
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assert.throws(function () { leftShift(1, 2, 3) }, /TypeError: Too many arguments/)
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})
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it('should throw an error in case of invalid type of arguments', function () {
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assert.throws(function () { leftShift(new Date(), true) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { leftShift(2, null) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { leftShift(true, new Date()) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { leftShift(true, undefined) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { leftShift(undefined, true) }, /TypeError: Unexpected type of argument/)
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})
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it('should LaTeX leftShift', function () {
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const expression = math.parse('leftShift(2,3)')
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assert.strictEqual(expression.toTex(), '\\left(2<<3\\right)')
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})
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})
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