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110 lines
3.6 KiB
JavaScript
110 lines
3.6 KiB
JavaScript
import assert from 'assert'
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import math from '../../../../src/bundleAny'
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const bignumber = math.bignumber
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describe('concat', function () {
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const a = [[1, 2], [3, 4]]
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const b = [[5, 6], [7, 8]]
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const c = [[9, 10], [11, 12]]
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const d = [
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[ [1, 2], [3, 4] ],
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[ [5, 6], [7, 8] ]
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]
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const e = [
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[ [9, 10], [11, 12] ],
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[ [13, 14], [15, 16] ]
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]
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it('should concatenate compatible matrices on the last dimension by default', function () {
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assert.deepStrictEqual(math.concat([1, 2, 3], [4, 5]), [1, 2, 3, 4, 5])
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assert.deepStrictEqual(math.concat(
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[bignumber(1), bignumber(2), bignumber(3)],
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[bignumber(4)]),
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[bignumber(1), bignumber(2), bignumber(3), bignumber(4)])
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assert.deepStrictEqual(math.concat([[1], [2], [3]], [[4]], 0), [[1], [2], [3], [4]])
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assert.deepStrictEqual(math.concat([[], []], [[1, 2], [3, 4]]), [[1, 2], [3, 4]])
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assert.deepStrictEqual(math.concat(math.matrix(a), math.matrix(b)), math.matrix([
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[1, 2, 5, 6],
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[3, 4, 7, 8]
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]))
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assert.deepStrictEqual(math.concat(a, b, c), [
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[1, 2, 5, 6, 9, 10],
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[3, 4, 7, 8, 11, 12]
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])
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assert.deepStrictEqual(math.concat(d, e), [
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[ [1, 2, 9, 10], [3, 4, 11, 12] ],
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[ [5, 6, 13, 14], [7, 8, 15, 16] ]
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])
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})
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it('should concatenate compatible matrices on the given dimension', function () {
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assert.deepStrictEqual(math.concat([[1]], [[2]], 1), [[1, 2]])
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assert.deepStrictEqual(math.concat([[1]], [[2]], 0), [[1], [2]])
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assert.deepStrictEqual(math.concat([[1]], [[2]], 0), [[1], [2]])
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assert.deepStrictEqual(math.concat(a, b, 0), [
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[1, 2],
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[3, 4],
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[5, 6],
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[7, 8]
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])
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assert.deepStrictEqual(math.concat(a, b, c, 0), [
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[1, 2],
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[3, 4],
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[5, 6],
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[7, 8],
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[9, 10],
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[11, 12]
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])
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assert.deepStrictEqual(math.concat(d, e, 0), [
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[ [1, 2], [3, 4] ],
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[ [5, 6], [7, 8] ],
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[ [9, 10], [11, 12] ],
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[ [13, 14], [15, 16] ]
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])
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assert.deepStrictEqual(math.concat(d, e, 1), [
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[ [1, 2], [3, 4], [9, 10], [11, 12] ],
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[ [5, 6], [7, 8], [13, 14], [15, 16] ]
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])
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assert.deepStrictEqual(math.concat(d, e, bignumber(1)), [
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[ [1, 2], [3, 4], [9, 10], [11, 12] ],
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[ [5, 6], [7, 8], [13, 14], [15, 16] ]
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])
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})
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it('should concatenate strings', function () {
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assert.strictEqual(math.concat('a', 'b'), 'ab')
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assert.strictEqual(math.concat('a', 'b', 'c'), 'abc')
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})
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it('should throw an error in case of invalid requested dimension number', function () {
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assert.throws(function () { math.concat([1, 2], [3, 4], 2.3) }, /Integer number expected for dimension/)
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assert.throws(function () { math.concat([1, 2], [3, 4], 1) }, /Index out of range \(1 > 0\)/)
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})
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it('should throw an error in case dimension mismatch', function () {
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assert.throws(function () { math.concat([1, 2], [[1, 2], [3, 4]]) }, RangeError)
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assert.throws(function () { math.concat([[1, 2]], [[1, 2], [3, 4]]) }, /Dimension mismatch/)
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})
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it('should throw an error in case of invalid type of argument', function () {
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assert.throws(function () { math.concat(math.complex(2, 3)) }, /TypeError: Unexpected type of argument/)
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})
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it('should throw an error when called without matrices as argument', function () {
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assert.throws(function () { math.concat(2) }, /At least one matrix expected/)
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})
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it('should LaTeX concat', function () {
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const expression = math.parse('concat([1],[2])')
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assert.strictEqual(expression.toTex(), '\\mathrm{concat}\\left(\\begin{bmatrix}1\\\\\\end{bmatrix},\\begin{bmatrix}2\\\\\\end{bmatrix}\\right)')
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})
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})
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