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Ruby Online Test

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The Ruby online test assesses candidates' knowledge of programming in the Ruby language.

It's an ideal test for pre-employment screening. A good Ruby developer should not only be able to solve problems using Ruby as the programming language but also be familiar with Ruby native data structures and language constructs.

This online test requires candidates to solve coding problems in Ruby as well as to find and fix bugs in a Ruby program.

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Free Sample Questions for Ruby Test

Our sample questions are free for companies to use on a trial plan. See more about our premium questions for paid plans below.

Merge Names

10min
  -  
Easy  
  -  
CODE

Ruby Arrays Public

Implement the unique_names method. When passed two arrays of names, it will return an array containing the names that appear in either or both arrays. The returned array should have no duplicates.

For example, calling unique_names(["Ava", "Emma", "Olivia"], ["Olivia", "Sophia", "Emma"]) should return an array containing Ava, Emma, Olivia, and Sophia in any order.

File Owners

15min
  -  
Easy  
  -  
CODE

Ruby Hash Public

Implement a group_by_owners function that:

  • Accepts a hash containing the file owner name for each file name.
  • Returns a hash containing an array of file names for each owner name, in any order.

For example, for hash {'Input.txt' => 'Randy', 'Code.py' => 'Stan', 'Output.txt' => 'Randy'} the group_by_owners function should return {'Randy' => ['Input.txt', 'Output.txt'], 'Stan' => ['Code.py']}.

Pipeline

10min
  -  
Hard  
  -  
CODE

Ruby Closures Higher order function Public

As part of a data processing pipeline, complete the implementation of the pipeline method:

  • The method should accept a variable number of functions, and it should return a new function that accepts one parameter arg.
  • The returned function should call the first function in the pipeline with the parameter arg, and call the second function with the result of the first function.
  • The returned function should continue calling each function in the pipeline in order, following the same pattern, and return the value from the last function.

For example, pipeline(-> (x) { x * 3 }, -> (x) { x + 1 }, -> (x) { x / 2 }) then calling the returned function with 3 should return 5.

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Premium Questions for Ruby Test

TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.

Question Names

These premium questions are included in this pre-built test and can be added to any multi-skill test. Please sign up for a paid plan to view the questions in detail.

Document Store, Greeter, Read First Line, Needle, Ranges, Log Patch, Shipping, Read Write Execute, Segment, Numbers to Text, Category Tree, Chain Link, Crop Ratio, Date Transform, Hobbies, Paragraph, Products, Username, Language Teacher
Covered Skills

Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.

Ruby Bug fixing Language Exceptions Stream Strings Ranges Monkey patching Arithmetic Hash Linked list Integer division Regex Arrays Iteration JSON Serialization Sorting Inheritance OOP
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Back-End Developer

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