Go Online Test

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About the test

The Go/Golang online test assesses knowledge of programming in the Go language and using its built-in functions. This test requires solving live coding problems in Go.

The assessment includes work-sample tasks such as:

  • Using channels to transfer data from one goroutine to another.
  • Embedding types within a struct or interface.
  • Working with Go data structures, such as maps and slices.

A good Go/Golang developer needs a solid understanding of the Go programming language and the ability to take advantage of its rich set of built-in functions to write robust and maintainable code.

Sample public questions

10 min

Implement the function findRoots to find the roots of the quadratic equation: ax2 + bx + c = 0. The function can return the roots in any order. If the equation has only one solution, the function should return that solution as both results. The equation will always have at least one solution.

The roots of the quadratic equation can be found with the following formula: A quadratic equation.

For example, findRoots(2, 10, 8) should return -1, -4 or -4, -1 as the roots of the equation 2x2 + 10x + 8 = 0 are -1 and -4.

10 min

Implement the uniqueNames function. When passed two slices of names, it will return a slice containing the names that appear in either or both slices. The returned slice should have no duplicates.

For example, calling uniqueNames([]string{"Ava", "Emma", "Olivia"}, []string{"Olivia", "Sophia", "Emma"}) should return a slice containing Ava, Emma, Olivia, and Sophia in any order.

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6 more premium Go questions

Execute Parallel, Fill Channel, Max Sum, Manager Full Name, Hobbies, Fire Dragon.

Skills and topics tested

  • Go
  • Channels
  • Multithreading
  • Synchronization
  • Algorithmic Thinking
  • Type Embedding
  • Iteration
  • Map
  • Slices
  • Higher Order Function
  • Interfaces

For job roles

  • Back-End Developer
  • Go Developer

Sample candidate report

What others say

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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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