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About the test:

The Swift Online test uses scenario-based MCQs to evaluate candidates on their knowledge of Swift programming language, including syntax, semantics, and data types. The test also evaluates a candidate's ability to write efficient and optimized Swift code, and their familiarity with iOS development concepts, such as UI design, iOS SDK, and Xcode. The test includes a coding question to evaluate hands-on Swift programming skills.

Covered skills:

  • Basics of Swift
  • Control Flow
  • Classes and Objects
  • Error Handling
  • Closures
  • Data Types
  • Functions
  • Optionals
  • Collections
  • Concurrency

9 reasons why
9 reasons why

Adaface Swift Test is the most accurate way to shortlist iOS Developers



Reason #1

Tests for on-the-job skills

The Swift 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 understand the basics of Swift programming language
  • Able to work with different data types in Swift
  • Able to effectively use control flow structures in Swift
  • Able to define and work with functions in Swift
  • Able to create and use classes and objects in Swift
  • Able to handle optionals and unwrap them correctly in Swift
  • Able to handle errors and exceptions in Swift
  • Able to work with collections like arrays and dictionaries in Swift
  • Able to understand and use closures in Swift
  • Able to handle concurrency and asynchronous tasks in Swift
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 Swift Online Test will be non-googleable.

🧐 Question

Medium

Data Provider DispatchQueue
Closures
Asychronous operations.
Solve
Consider the following code snippet:
 image
What will be printed after the code execution?

Medium

Property Observers
OOPs
Solve
Consider the following Swift code snippet:
 image
What does the code print after execution?
A) 800, -100, 80, 80
B) 800, 800, 80, 72
C) 1000, 800, 100, 72
D) 800, 800, 80, 80
E) 800, 0, 80, 80

Medium

Class Destructor
OOPs
Solve
What does the following Swift code output?
 image

Easy

Defer blocks
Solve
What does the following Swift code output?
 image

Easy

Lazy Variables
Solve
What does the following Swift code output?
 image

Easy

Registration Queue
Logic
Queues
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Visitors Count
Strings
Logic
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Medium

Data Provider DispatchQueue
Closures
Asychronous operations.

3 mins

Swift
Solve

Medium

Property Observers
OOPs

2 mins

Swift
Solve

Medium

Class Destructor
OOPs

2 mins

Swift
Solve

Easy

Defer blocks

2 mins

Swift
Solve

Easy

Lazy Variables

2 mins

Swift
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Data Provider DispatchQueue
Closures
Asychronous operations.
Swift
Medium3 mins
Solve
Property Observers
OOPs
Swift
Medium2 mins
Solve
Class Destructor
OOPs
Swift
Medium2 mins
Solve
Defer blocks
Swift
Easy2 mins
Solve
Lazy Variables
Swift
Easy2 mins
Solve
Registration Queue
Logic
Queues
Coding
Easy30 minsSolve
Visitors Count
Strings
Logic
Coding
Medium30 minsSolve
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 Swift 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 Swift 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 Swift Assessment Test

Why you should use Pre-employment Swift Online Test?

The Swift 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:

  • Basic understanding of Swift programming language and its syntax
  • Knowledge of different data types in Swift and how to use them effectively
  • Understanding of control flow statements
  • Proficiency in defining and working with functions
  • Familiarity with creating and using classes and objects
  • Understanding of optionals
  • Knowledge of error handling techniques
  • Proficiency in working with collections like arrays, dictionaries, and sets
  • Understanding of closures
  • Knowledge of concurrency concepts

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 Swift Online Test?

  • Basics of Swift

    Basics of Swift refers to the fundamental concepts and syntax of the Swift programming language, such as variables, constants, data types, operators, and basic control structures. This skill is measured in the test to assess a candidate's proficiency in the foundational aspects of Swift programming, which serves as a strong basis for building more complex applications.

  • Data Types

    Data Types in Swift define the kind of values that can be stored and manipulated in variables or constants. This skill is measured in the test to evaluate a candidate's understanding of the different data types available in Swift, like integers, floats, strings, and arrays, and their usage in writing efficient and type-safe code.

  • Control Flow

    Control Flow refers to the flow of execution within a program, determined by conditional statements, loops, and branches. This skill is measured in the test to assess a candidate's ability to effectively control the execution of their Swift code based on different conditions, making decisions and repeating actions as required.

  • Functions

    Functions in Swift are self-contained blocks of code that perform a specific task. This skill is measured in the test to evaluate a candidate's knowledge of creating, calling, and using functions in Swift, including parameter passing, return types, and the concept of function overloading, which helps in writing modular and reusable code.

  • Classes and Objects

    Classes and Objects are fundamental concepts in object-oriented programming. This skill is measured in the test to gauge a candidate's understanding of creating and working with classes, objects, properties, and methods in Swift, which enables building complex and organized code structures, facilitating code reuse and easy maintenance.

  • Optionals

    Optionals represent the possibility of absence of a value in Swift. This skill is measured in the test to assess a candidate's grasp on handling optional values, unwrapping them safely, and dealing with nil scenarios, which is crucial for writing robust and bug-free code, ensuring data integrity and handling unexpected situations.

  • Error Handling

    Error Handling in Swift is the mechanism of handling and responding to error conditions that might occur during the execution of a program. This skill is measured in the test to evaluate a candidate's knowledge of using Swift's error handling features, such as try-catch blocks, to gracefully handle errors, propagate them, or recover from them, ensuring fault-tolerant and reliable applications.

  • Collections

    Collections in Swift, like arrays, sets, and dictionaries, enable storing and organizing multiple values into a single entity. This skill is measured in the test to assess a candidate's understanding of working with collections efficiently, including performing common operations like insertion, deletion, iteration, and accessing elements, which are essential skills in almost all non-trivial programming tasks.

  • Closures

    Closures are self-contained blocks of functionality that can be passed around and used within Swift code. This skill is measured in the test to gauge a candidate's knowledge of closures, including their syntax, capturing values from the surrounding context, and their usage in scenarios like asynchronous programming or functional programming paradigms, which is indispensable for writing concise and flexible code.

  • Concurrency

    Concurrency in Swift is the ability of a program to execute multiple tasks simultaneously. This skill is measured in the test to evaluate a candidate's understanding of using Swift's concurrency mechanisms like concurrent queues, dispatch groups, and async/await to write efficient, scalable, and responsive code that can handle concurrent execution and synchronization correctly.

  • 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 Swift Online Test to be based on.

    Basics of Swift
    Variables
    Constants
    Data Types
    Type Inference
    Control Flow
    Conditional Statements
    Loops
    Switch Statements
    Functions
    Function Parameters
    Return Values
    Function Overloading
    Classes and Objects
    Properties
    Methods
    Initializers
    Inheritance
    Polymorphism
    Optionals
    Optional Unwrapping
    Optional Chaining
    Error Handling
    Do-try-catch
    Throwing Functions
    Collections
    Arrays
    Dictionaries
    Sets
    Closures
    Closure Syntax
    Capture Lists
    Escaping Closures
    Concurrency
    Dispatch Queues
    Async-Await
    Threading
    Grand Central Dispatch
    Error Handling
    Dealing with Multiple Errors
    Futures and Promises
    Generics
    Extensions
    Protocol-Oriented Programming
    Memory Management
    Automatic Reference Counting (ARC)
    Memory Leaks
    Access Control
    Modules and Frameworks
    Debugging and Testing
    Unit Testing
    UI Testing
    Debugging Techniques

What roles can I use the Swift Online Test for?

  • iOS Developer
  • Mobile App Developer
  • Swift Programmer
  • Senior iOS Developer
  • iOS Swift Developer

How is the Swift 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

  • Debugging and troubleshooting code
  • Understanding of memory management and how to avoid memory leaks
  • Working with networking, REST APIs, and JSON parsing
  • Implement user interfaces using UIKit or SwiftUI
  • Knowledge of Core Data or other persistence frameworks for data storage
  • Asynchronous programming and multithreading

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

Swift 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.
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