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About the test:

The Ruby Online Test uses scenario-based MCQs to evaluate candidates on their knowledge of the Ruby programming language, including their proficiency in working with classes, objects, modules, control structures, and data types. The test includes a coding question to evaluate hands-on Ruby programming skills and aims to evaluate a candidate's ability to design and develop applications using the Ruby language and its associated frameworks.

Covered skills:

  • Ruby Basics
  • Control Flow
  • Classes and Objects
  • Modules
  • Regular Expressions
  • Data Types
  • Methods
  • Exceptions
  • File Handling
  • Database Connectivity

9 reasons why
9 reasons why

Adaface Ruby Test is the most accurate way to shortlist Ruby Developers



Reason #1

Tests for on-the-job skills

The Ruby Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Able to efficiently handle exceptions and errors
  • Proficient in using various data types and their manipulation
  • Skilled in control flow structures and logical operations
  • Expertise in defining and utilizing methods
  • Comprehensive understanding of classes and objects
  • Familiarity with handling and managing exceptions
  • Proficient in utilizing and working with modules
  • Competence in file handling and processing
  • Proficient in regular expressions for pattern matching
  • Knowledge of integrating with databases for data retrieval and manipulation
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this Ruby Online Test will be non-googleable.

🧐 Question

Easy

Arrays Strings
Arrays
Strings
Solve
Check the  following Ruby code:
 image
We want the following execution result:
- Commit
- PR
- Merge
What should we replace __BLOCK__  with to achieve this?

Medium

Class and Self
OOPs
Solve
What is the execution result of the following Ruby code?
 image
 image

Easy

Exceptions
Exceptions
OOPs
Solve
What is the result of following Ruby code:
 image

Medium

New Class
OOPs
Singleton
Solve
Check the  following Ruby code:
 image
Which all of the following statements should replace __BLOCK__ to have "Marvel" as execution result?
A: Sample.new.class.ciao
B: Sample.class.new.ciao
C: Sample.new.ciao
D: Sample.ciao
🧐 Question🔧 Skill

Easy

Arrays Strings
Arrays
Strings

2 mins

Ruby
Solve

Medium

Class and Self
OOPs

2 mins

Ruby
Solve

Easy

Exceptions
Exceptions
OOPs

2 mins

Ruby
Solve

Medium

New Class
OOPs
Singleton

2 mins

Ruby
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Arrays Strings
Arrays
Strings
Ruby
Easy2 mins
Solve
Class and Self
OOPs
Ruby
Medium2 mins
Solve
Exceptions
Exceptions
OOPs
Ruby
Easy2 mins
Solve
New Class
OOPs
Singleton
Ruby
Medium2 mins
Solve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Ruby Online Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Ruby Online Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

View sample scorecard
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the Ruby Assessment Test

Why you should use Pre-employment Ruby Online Test?

The Ruby Online Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Understanding of Ruby Basics
  • Knowledge of Data Types in Ruby
  • Ability to Control Flow in Ruby
  • Proficiency in Methods in Ruby
  • Understanding of Classes and Objects in Ruby
  • Experience with Exceptions in Ruby
  • Familiarity with Modules in Ruby
  • Knowledge of File Handling in Ruby
  • Proficiency in Regular Expressions in Ruby
  • Experience with Database Connectivity in Ruby

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Ruby Online Test?

  • Ruby Basics

    Ruby Basics cover the fundamental concepts and syntax of the Ruby programming language. It includes topics such as variables, data types, operators, loops, and conditionals. This skill is measured in the test to assess the candidate's understanding of the core building blocks of Ruby.

  • Data Types

    Data Types in Ruby determine the kind of values that variables can hold. It includes numeric types, strings, arrays, hashes, and booleans. Measuring this skill helps evaluate the candidate's capability to work with different data structures and manipulate data effectively.

  • Control Flow

    Control Flow in Ruby involves the flow of program execution based on conditions and decisions. It includes concepts like if statements, case statements, and loops. Measuring this skill helps gauge the candidate's ability to control the logic and flow of their program accurately.

  • Methods

    Methods in Ruby are reusable blocks of code that perform specific tasks. They enhance code organization, readability, and maintainability. Measuring this skill allows recruiters to assess the candidate's proficiency in creating and using methods to modularize their code and improve efficiency.

  • Classes and Objects

    Classes and Objects form the foundation of object-oriented programming in Ruby. They allow for the creation of blueprints (classes) that define the behavior and attributes of objects. Measuring this skill helps identify candidates who can design and implement well-structured and reusable code using object-oriented principles.

  • Exceptions

    Exceptions in Ruby allow for handling and managing errors and exceptional situations during program execution. They provide a way to gracefully handle unexpected scenarios. Measuring this skill helps evaluate a candidate's ability to write robust and resilient code by handling exceptions effectively.

  • Modules

    Modules in Ruby are containers for groups of methods, constants, and classes. They provide a way to share functionality across different classes without using inheritance. Measuring this skill helps assess the candidate's understanding of code reuse, encapsulation, and separation of concerns using modules.

  • File Handling

    File Handling in Ruby involves reading from and writing to files. It includes operations like opening, closing, reading, and writing data to files. Measuring this skill allows recruiters to evaluate a candidate's ability to work with file systems, manipulate file data, and perform file-related operations effectively.

  • Regular Expressions

    Regular Expressions in Ruby are powerful patterns used for matching and manipulating text. They offer a concise and flexible way to perform string matching and replacement operations. Measuring this skill helps identify candidates who can leverage regular expressions to handle complex text-based tasks and validate input data efficiently.

  • Database Connectivity

    Database Connectivity in Ruby involves integrating Ruby applications with databases to store, retrieve, and manipulate data. It includes concepts like connecting to databases, executing SQL queries, and handling data results. Measuring this skill helps assess a candidate's ability to work with databases, perform CRUD operations, and interact with data persistently.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Ruby Online Test to be based on.

    Ruby Basics
    Variables
    Operators
    Strings
    Arrays
    Hashes
    Numbers
    Conditionals
    Loops
    Methods
    Classes
    Objects
    Inheritance
    Polymorphism
    Exception Handling
    Modules
    Namespaces
    Included Modules
    Singleton Methods
    File I/O
    File Manipulation
    File Permissions
    Regular Expressions
    Pattern Matching
    Database Connectivity
    SQL Queries
    Data Retrieval
    Data Manipulation
    ActiveRecord
    ORM
    Database Transactions

What roles can I use the Ruby Online Test for?

  • Ruby Developer
  • Senior Ruby Developer
  • Ruby Backend Developer

How is the Ruby Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Ability to handle Ruby Arrays
  • Knowledge of Ruby Hashes
  • Understanding of Ruby Strings
  • Proficiency in Object-Oriented Programming with Ruby
  • Experience with Error Handling in Ruby
  • Familiarity with Ruby Gems and Libraries
  • Knowledge of Reading and Writing Files in Ruby
  • Proficiency in Pattern Matching with Regular Expressions in Ruby
  • Experience with SQL/Database Manipulation in Ruby
  • Ability to handle Web Requests and APIs with Ruby
  • Understanding of Test-Driven Development with Ruby

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

Ruby Hiring Test FAQs

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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40 min tests.
No trick questions.
Accurate shortlisting.
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