Ruby on Rails Online Test

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About the test

The Ruby on Rails online test assesses programming skills in Ruby and knowledge of the Ruby on Rails framework. This test includes solving live coding problems in Ruby.

The assessment includes solving work-sample tasks, such as:

  • Mapping database tables and relationships to Ruby objects.
  • Configuring routing mechanisms.
  • Solving coding problems given specific requirements.

A good Ruby developer needs a solid understanding of the Ruby programming language and commonly used aspects of the Rails framework in order to create robust, scalable, and user-friendly web applications.

Sample public questions

10 min
Higher Order Function

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

  • The pipeline 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 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 pipeline in order, following the same pattern, and return the value from the last function.

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

3 min
Ruby on Rails
Database Migrations

Select all statements that are correct after the following migration has been executed:

class ContactsMigration < ActiveRecord::Migration
  def change
    create_table :contacts do |t|
      t.string :name
      t.integer :telephone_number
      t.text :address, null: false

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24 more premium Ruby on Rails questions

Teacher Route, Document Store, Product Model, Books, Ranges, Category Tree, Chain Link, Hobbies, Username, Crop Ratio, String Occurrence, Invoice, Segment, Read Write Execute, Read First Line, Language Teacher, Log Patch, Customer Orders, Date Transform, Numbers To Text, Paragraph, Greeter, Students, Shipping.

Skills and topics tested

  • Ruby on Rails
  • URL Routing
  • Ruby
  • Bug Fixing
  • Language
  • Database Abstraction
  • Collections
  • Ranges
  • Exceptions
  • Hash
  • Linked List
  • Arrays
  • Iteration
  • Regex
  • Strings
  • Integer Division
  • Stream
  • Arithmetic
  • Inheritance
  • OOP
  • Monkey Patching
  • JSON
  • Serialization
  • Sorting

For job roles

  • Back-End Developer
  • Ruby Developer
  • Ruby on Rails Developer
  • Web Developer

Sample candidate report

What others say

Decorative quote

Simple, straight-forward technical testing

TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.

Jan Opperman, Grindrod Bank

Product reviews

G2 - Crowd Badge
G2 - High Performer (2022)
Capterra - 4.5 Stars
Capterra - Shortlist (2023)

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