mirror of
https://github.com/josdejong/mathjs.git
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222 lines
7.7 KiB
JavaScript
222 lines
7.7 KiB
JavaScript
// test bitAnd
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var assert = require('assert'),
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math = require('../../../index'),
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bignumber = math.bignumber,
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bitAnd = math.bitAnd;
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describe('bitAnd', function () {
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it('should bitwise and two numbers', function () {
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assert.equal(bitAnd(53, 131), 1);
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assert.equal(bitAnd(2, 3), 2);
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assert.equal(bitAnd(-2, 3), 2);
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assert.equal(bitAnd(2, -3), 0);
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assert.equal(bitAnd(-5, -3), -7);
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});
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it('should bitwise and booleans', function () {
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assert.equal(bitAnd(true, true), 1);
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assert.equal(bitAnd(true, false), 0);
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assert.equal(bitAnd(false, true), 0);
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assert.equal(bitAnd(false, false), 0);
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});
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it('should bitwise and numbers and null', function () {
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assert.equal(math.bitAnd(null, null), 0);
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assert.equal(math.bitAnd(null, 1), 0);
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assert.equal(math.bitAnd(1, null), 0);
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});
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it('should bitwise and mixed numbers and booleans', function () {
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assert.equal(bitAnd(1, true), 1);
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assert.equal(bitAnd(1, false), 0);
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assert.equal(bitAnd(true, 1), 1);
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assert.equal(bitAnd(false, 1), 0);
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});
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it('should bitwise and bignumbers', function () {
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assert.deepEqual(bitAnd(bignumber(1), bignumber(2)), bignumber(0));
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assert.deepEqual(bitAnd(bignumber('-1.0e+31'), bignumber('-1.0e+32')), bignumber('-101273397985285317082036849082368'));
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assert.deepEqual(bitAnd(bignumber('1.0e+31'), bignumber('1.0e+32')), bignumber('8726602014714682917961003433984'));
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assert.deepEqual(bitAnd(bignumber('-1.0e+31'), bignumber('1.0e+32')), bignumber('91273397985285317082038996566016'));
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assert.deepEqual(bitAnd(bignumber('1.0e+31'), bignumber('-1.0e+32')), bignumber('1273397985285317082036849082368'));
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assert.deepEqual(bitAnd(bignumber('2.1877409333271352879E+75'), bignumber('-3.220131224058161211554E+42')), bignumber('2187740933327135287899999999999996863578490213829130431270426161710498840576'));
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});
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it('should bitwise and mixed numbers and bignumbers', function () {
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assert.deepEqual(bitAnd(bignumber(1), 2), bignumber(0));
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assert.deepEqual(bitAnd(1, bignumber(2)), bignumber(0));
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assert.deepEqual(bitAnd(bignumber(7), 9), bignumber(1));
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assert.deepEqual(bitAnd(7, bignumber(9)), bignumber(1));
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});
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it('should bitwise and mixed booleans and bignumbers', function () {
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assert.deepEqual(bitAnd(bignumber(1), true), bignumber(1));
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assert.deepEqual(bitAnd(bignumber(1), false), bignumber(0));
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assert.deepEqual(bitAnd(false, bignumber(3)), bignumber(0));
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assert.deepEqual(bitAnd(true, bignumber(3)), bignumber(1));
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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 () {bitAnd(math.unit('5cm'), 2);}, /TypeError: Unexpected type of argument/);
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assert.throws(function () {bitAnd(2, math.unit('5cm'));}, /TypeError: Unexpected type of argument/);
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assert.throws(function () {bitAnd(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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bitAnd(1.1, 1);
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}, /Integers expected in function bitAnd/);
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assert.throws(function () {
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bitAnd(1, 1.1);
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}, /Integers expected in function bitAnd/);
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assert.throws(function () {
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bitAnd(1.1, 1.1);
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}, /Integers expected in function bitAnd/);
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assert.throws(function () {
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bitAnd(bignumber(1.1), 1);
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}, /Integers expected in function bitAnd/);
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assert.throws(function () {
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bitAnd(1, bignumber(1.1));
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}, /Integers expected in function bitAnd/);
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assert.throws(function () {
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bitAnd(bignumber(1.1), bignumber(1));
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}, /Integers expected in function bitAnd/);
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assert.throws(function () {
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bitAnd(bignumber(1), bignumber(1.1));
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}, /Integers expected in function bitAnd/);
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});
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it('should bitwise and arrays correctly', function () {
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var a = [[1,4],[3,2]];
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// array - array
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var b = [[5,8],[7,6]];
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var c = bitAnd(a, b);
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assert.deepEqual(c, [[1,0],[3,2]]);
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// array - dense
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b = math.matrix([[5,8],[7,6]]);
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c = bitAnd(a, b);
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assert.deepEqual(c, math.matrix([[1,0],[3,2]]));
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// array - sparse
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b = math.sparse([[5,8],[7,6]]);
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c = bitAnd(a, b);
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assert.deepEqual(c, math.sparse([[1,0],[3,2]]));
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});
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it('should bitwise and dense matrix correctly', function () {
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var a = math.matrix([[1,4],[3,2]]);
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// dense - array
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var b = [[5,8],[7,6]];
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var c = bitAnd(a, b);
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assert.deepEqual(c, math.matrix([[1,0],[3,2]]));
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// dense - dense
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b = math.matrix([[5,8],[7,6]]);
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c = bitAnd(a, b);
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assert.deepEqual(c, math.matrix([[1,0],[3,2]]));
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// dense - sparse
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b = math.sparse([[5,8],[7,6]]);
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c = bitAnd(a, b);
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assert.deepEqual(c, math.sparse([[1,0],[3,2]]));
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});
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it('should bitwise and sparse matrix correctly', function () {
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var a = math.sparse([[1,4],[3,2]]);
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// sparse - array
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var b = [[5,8],[7,6]];
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var c = bitAnd(a, b);
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assert.deepEqual(c, math.sparse([[1,0],[3,2]]));
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// sparse - dense
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b = math.matrix([[5,8],[7,6]]);
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c = bitAnd(a, b);
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assert.deepEqual(c, math.sparse([[1,0],[3,2]]));
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// sparse - sparse
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b = math.sparse([[5,8],[7,6]]);
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c = bitAnd(a, b);
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assert.deepEqual(c, math.sparse([[1,0],[3,2]]));
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// sparse - sparse pattern
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b = new math.type.SparseMatrix({
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index: [ 0, 1],
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ptr: [ 0, 1, 2 ],
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size: [ 2, 2 ]
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});
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c = bitAnd(a, b);
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assert.deepEqual(
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c,
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new math.type.SparseMatrix({
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index: [ 0, 1],
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ptr: [ 0, 1, 2 ],
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size: [ 2, 2 ]
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}));
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// sparse pattern - sparse
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c = bitAnd(b, a);
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assert.deepEqual(
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c,
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new math.type.SparseMatrix({
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index: [ 0, 1],
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ptr: [ 0, 1, 2 ],
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size: [ 2, 2 ]
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}));
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});
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it('should bitwise and matrices correctly', function () {
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var a2 = math.matrix([[1,2],[3,4]]);
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var a3 = math.matrix([[5,6],[7,8]]);
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var a4 = bitAnd(a2, a3);
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assert.ok(a4 instanceof math.type.Matrix);
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assert.deepEqual(a4.size(), [2,2]);
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assert.deepEqual(a4.valueOf(), [[1,2],[3,0]]);
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var a5 = math.pow(a2, 2);
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assert.ok(a5 instanceof math.type.Matrix);
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assert.deepEqual(a5.size(), [2,2]);
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assert.deepEqual(a5.valueOf(), [[7,10],[15,22]]);
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});
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it('should bitwise and a scalar and a matrix correctly', function () {
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assert.deepEqual(bitAnd(12, math.matrix([3,9])), math.matrix([0,8]));
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assert.deepEqual(bitAnd(math.matrix([3,9]), 12), math.matrix([0,8]));
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});
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it('should bitwise and a scalar and an array correctly', function () {
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assert.deepEqual(bitAnd(12, [3,9]), [0,8]);
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assert.deepEqual(bitAnd([3,9], 12), [0,8]);
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});
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it('should bitwise and a matrix and an array correctly', function () {
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var a = [6,4,28];
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var b = math.matrix([13,92,101]);
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var c = bitAnd(a, b);
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assert.ok(c instanceof math.type.Matrix);
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assert.deepEqual(c, math.matrix([4,4,4]));
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});
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it('should throw an error in case of invalid number of arguments', function () {
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assert.throws(function () {bitAnd(1);}, /TypeError: Too few arguments/);
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assert.throws(function () {bitAnd(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 () {bitAnd(new Date(), true);}, /TypeError: Unexpected type of argument/);
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assert.throws(function () {bitAnd(true, new Date());}, /TypeError: Unexpected type of argument/);
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assert.throws(function () {bitAnd(true, undefined);}, /TypeError: Unexpected type of argument/);
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assert.throws(function () {bitAnd(undefined, true);}, /TypeError: Unexpected type of argument/);
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});
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it('should LaTeX bitAnd', function () {
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var expression = math.parse('bitAnd(4,2)');
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assert.equal(expression.toTex(), '\\left(4\\&2\\right)');
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});
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});
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