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83 lines
3.3 KiB
JavaScript
83 lines
3.3 KiB
JavaScript
import assert from 'assert'
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import math from '../../../../src/defaultInstance.js'
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const isPositive = math.isPositive
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const bignumber = math.bignumber
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const fraction = math.fraction
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const complex = math.complex
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const unit = math.unit
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describe('isPositive', function () {
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it('should test whether a number is positive', function () {
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assert.strictEqual(isPositive(0), false)
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assert.strictEqual(isPositive(-0), false)
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assert.strictEqual(isPositive(2), true)
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assert.strictEqual(isPositive(-3), false)
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assert.strictEqual(isPositive(Infinity), true)
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assert.strictEqual(isPositive(-Infinity), false)
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assert.strictEqual(isPositive(NaN), false)
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})
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it('should test whether a bigint is positive', function () {
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assert.strictEqual(isPositive(0n), false)
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assert.strictEqual(isPositive(-0n), false)
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assert.strictEqual(isPositive(2n), true)
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assert.strictEqual(isPositive(-3n), false)
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})
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it('should test whether a number is near positive', function () {
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assert.strictEqual(isPositive(1e-17), false)
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assert.strictEqual(isPositive(-1e-17), false)
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assert.strictEqual(isPositive(1e-14), true)
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assert.strictEqual(isPositive(-1e-14), false)
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})
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it('should test whether a boolean is positive', function () {
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assert.strictEqual(isPositive(true), true)
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assert.strictEqual(isPositive(false), false)
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})
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it('should test whether a BigNumber is positive', function () {
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assert.strictEqual(isPositive(bignumber(0)), false)
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assert.strictEqual(isPositive(bignumber(-0)), false)
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assert.strictEqual(isPositive(bignumber(2)), true)
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assert.strictEqual(isPositive(bignumber(-3)), false)
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assert.strictEqual(isPositive(bignumber(Infinity)), true)
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assert.strictEqual(isPositive(bignumber(-Infinity)), false)
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assert.strictEqual(isPositive(bignumber(NaN)), false)
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})
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it('should test whether a Fraction is positive', function () {
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assert.strictEqual(isPositive(fraction(2)), true)
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assert.strictEqual(isPositive(fraction(-3)), false)
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assert.strictEqual(isPositive(fraction(0)), false)
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assert.strictEqual(isPositive(fraction(-0)), false)
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})
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it('should test whether a unit is positive', function () {
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assert.strictEqual(isPositive(unit('0 m')), false)
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assert.strictEqual(isPositive(unit('0 kB')), false)
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assert.strictEqual(isPositive(unit('5 cm')), true)
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assert.strictEqual(isPositive(unit('-3 inch')), false)
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})
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it('should test whether a string contains a positive value', function () {
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assert.strictEqual(isPositive('2'), true)
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assert.strictEqual(isPositive('-2'), false)
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assert.strictEqual(isPositive('0'), false)
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})
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it('should test isPositive element wise on an Array', function () {
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assert.deepStrictEqual(isPositive([0, 5, 0, -3]), [false, true, false, false])
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})
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it('should test isPositive element wise on a Matrix', function () {
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assert.deepStrictEqual(isPositive(math.matrix([0, 5, 0, -3])), math.matrix([false, true, false, false]))
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})
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it('should throw an error in case of unsupported data types', function () {
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assert.throws(function () { isPositive(complex(2, 3)) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { isPositive(new Date()) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { isPositive({}) }, /TypeError: Unexpected type of argument/)
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})
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})
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