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-rw-r--r--test/random.unit.js40
1 files changed, 40 insertions, 0 deletions
diff --git a/test/random.unit.js b/test/random.unit.js
index d04bf280..e10d36be 100644
--- a/test/random.unit.js
+++ b/test/random.unit.js
@@ -97,6 +97,46 @@ describe("random.js", function () {
});
});
+ describe('arrayElements', function() {
+ it('returns a subset with random elements in the array', function() {
+ var testArray = ['hello', 'to', 'you', 'my', 'friend'];
+ var subset = faker.random.arrayElements(testArray);
+
+ // Check length
+ assert.ok(subset.length >= 1 && subset.length <= testArray.length);
+
+ // Check elements
+ subset.forEach(function(element) {
+ assert.ok(testArray.indexOf(element) > -1);
+ });
+
+ // Check uniqueness
+ subset.forEach(function(element) {
+ assert.ok(!this.hasOwnProperty(element));
+ this[element] = true;
+ }, {});
+ });
+
+ it('returns a subset of fixed length with random elements in the array', function() {
+ var testArray = ['hello', 'to', 'you', 'my', 'friend'];
+ var subset = faker.random.arrayElements(testArray, 3);
+
+ // Check length
+ assert.ok(subset.length === 3);
+
+ // Check elements
+ subset.forEach(function(element) {
+ assert.ok(testArray.indexOf(element) > -1);
+ });
+
+ // Check uniqueness
+ subset.forEach(function(element) {
+ assert.ok(!this.hasOwnProperty(element));
+ this[element] = true;
+ }, {});
+ });
+ });
+
describe('UUID', function() {
it('should generate a valid UUID', function() {
var UUID = faker.random.uuid();