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SOLID Principles Test
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SOLID Principles Test

iMocha’s SOLID Principles test is the definitive pre-hire test for recruiters and hiring managers to assess candidates objectively. This test helps hire JavaScript developers, Java developers, and C# developers. Our test helps to reduce hiring costs by 40%.

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Online SOLID Principles Test

Assessment test on SOLID principles helps recruiters and hiring managers to evaluate in-depth knowledge of candidate about the SOLID principles before hiring or recruiting.

SOLID is a mnemonic acronym for five OOD (object-oriented design) principles intended to make software designs more understandable, flexible, and maintainable. SOLID principles are used in programming languages such as Java, C#, etc.

The online test on SOLID principles is specially designed to check application and practical skills related to SOLID principles of software developers – as per Industry Standards. Our SOLID principles test is created and validated by subject matter experts.

Our intelligent reports give you detailed hiring analytics of pre-employment tests for SOLID principles that help analyze the candidates' skills.

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Test Summary

This test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Whiteboard Questions, Audio / Video Questions, AI-LogicBox (AI-based Pseudo-Coding Platform), Coding Simulators, True or False Questions, etc.  

This interview test for the SOLID principle contains a combination of application and theory questions that helps you to evaluate the technical as well as practical skills of candidates.

Useful for hiring
  • Javascript Developer
  • Java Developer
  • C# Developer
Test Duration
No. of Questions
Level of Expertise
Topics Covered

Open Closed Principle (OCP)

iMocha's SOLID principles test helps recruiters and hiring managers to evaluate candidates' understanding of the Open Closed Principle (OCP), which states entities such as classes, modules, functions, etc.

Violation in SRP

Our test evaluates candidate’s understanding of SRP violation when responsibilities start to collate with each other.

Types of DI

This online test on SOLID principles assesses candidates' proficient knowledge of DI and its types.


This test helps recruiters and hiring managers to evaluate candidates' knowledge of SOLID principles, which helps to solve problematic design patterns.

Single Responsibility Principle (SRP)

Our assessment validates applicants' knowledge of Single Responsibility Principle (SRP) in SOLID principles, which states that a class only performs one task at a time as single responsibility of task.

Liskov Substitution Principle (LSP)

Our pre-employment test for SOLID principles evaluates candidates' understanding of Liskov substitution principle, which states that ability of replacing objects of a superclass with objects of its subclasses.
Sample Question
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Question type
Multiple Option
Topics covered
Implementing SOLID


You have created a set of services that implement the same API, but depending on the region, it implements different business logic. Also the services themselves must run in that region. How would you do this considering the liskov substitution principle?


  • You should use child services that run in each region, and each run different business logic<br />&nbsp;
  • Each instance of API is a separate service, and polymorphic substitution is performed by a higher order service<br />&nbsp;
  • Each instance of API is a separate service, and polymorphic substitution is performed by a lower order service<br />&nbsp;
  • None of these<br />&nbsp;
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