Testing
V (vlang) has a built-in test runner that requires no external frameworks. Test files end with _test.v and contain functions starting with test_. V compiles and runs them with v test file_test.v or v test . to run all tests in a directory. The primary assertion mechanism
Testing
D has built-in testing via unittest blocks — no framework needed for basic tests. For richer assertions and test organization, fluent-asserts provides a fluent API and dunit adds xUnit-style classes with setup/teardown. This guide covers all three approaches with practical examples. Key Takeaways D's unittest
Testing
Crystal ships with a built-in testing framework: crystal spec. It uses an RSpec-like API with describe, it, context, before_each, after_each, and expect. No external library needed. This guide covers writing Crystal specs, using matchers, testing exceptions, and setting up CI. Key Takeaways Crystal's Spec
Testing
Nim has three testing approaches: the standard library unittest module (simple but limited), unittest2 (modern replacement with better output), and testament (Nim's own compiler test tool used for its standard library). For application code, unittest2 is the recommended choice. Nim also supports doctests through the runnableExamples pragma. Key
Testing
Zig has a built-in test runner — no external framework needed. Write test "name" { ... } blocks anywhere in your code, run zig test src/main.zig, and the compiler compiles and runs them. The std.testing module provides assertions, and comptime blocks can be tested too. This guide covers