just/test/array-random/index.js at typeof · hmmhmmhm/just

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var test = require('../util/test')(__filename);

var random = require('../../packages/array-random');

test('picks array values at random', function(t) {

t.plan(1);

var arr = [1, 2, 3, 4, 5];

var randomChoice = random(arr);

t.notEqual(arr.indexOf(randomChoice), -1);

t.end();

});

test('picks sole element when array is of unity length', function(t) {

t.plan(1);

var arr = [1];

var randomChoice = random(arr);

t.equal(randomChoice, 1);

t.end();

});

test('non-array arguments throw', function(t) {

t.plan(4);

t.throws(function() {

random({});

});

t.throws(function() {

random(undefined);

});

t.throws(function() {

random(null);

});

t.throws(function() {

random();

});

t.end();

});