What is the difference between unit test vs integration test rust?

Unit testing and integration testing are two of the most important types of software testing. In fact, unit testing is the first testing phase of the Software Testing Life Cycle (STLC) process. After the completion of the unit testing process, the integration testing process is initiated. Rust is a programming language that is especially helpful in being of strategic use to unit testing and integration testing processes. In this article, you will get to know what are the differences between unit test vs. Integration test rust.

What is rust?

It is a programming language that focuses on correctness and helps in writing software tests within the language itself. It is strategically and optimally used in unit testing and integration testing.

A short but important introduction to Unit testing and integration testing:

Before understanding the usage of "Rust" in unit testing and integration testing. It is much better to understand the meaning of unit and integration testing. Understanding the differences between unit vs integration testing will also help the team/learner/developer/tester.

What is Unit testing?

It is a testing method wherein small pieces of code known as "units" are tested. A unit can be a property, method, subroutine or function.

What is Integration testing?

It is a testing method wherein two or more software modules/components are combined and tested as a group. The objective is to uncover defects when the integrated modules or components interact with each other.

Unit vs Integration testing:

Following are a few differences between unit vs integration testing:

Unit testing:

• Code accessibility is required as the written code is tested

• Individual units of code are tested

• Issues or bugs that are found in unit testing are quickly fixed

Integration testing:

• Code accessibility is not required as the interfaces and interactions between modules are tested

• The connection between two or more modules is verified and tested

• It is quite time-consuming and the cost of fixing bugs is also higher.

Unit testing in Rust:

There is no need, in particular, to have dedicated test files (e.g., .test.ts or .spec.ts files in TypeScript) as Rust unit tests (due to their module approach) reside in the same file as the code under test.

Dedicated files for testing are also supported by Rust, but, it is mainly meant for integration testing of libraries and not for unit testing. If the unit tests need to be encapsulated from the actual business code, a dedicated tests module is where they are put into and decorated with the # [cfg (test) ] attribute. The test runner that runs the actual tests is decorated with the # [test] attribute.

Integration testing in Rust:

Following are the three points that need to be taken into consideration when integration testing in Rust is used:

• Annotation of tests with # [test]

• The enumeration of libtest harness through all of your tests

• The pass/fail execution status is returned by libtest.

There is nothing that libtest can offer to support integration testing patterns. It is important to set up a standard test environment in a complex system. Through this, expected behavior can be managed when code changes are being made.

Without the support of a harness, external shell scripts are the platform through which setup will be performed or the setup process can be paddled within every single integration test.

Setup cannot be managed properly in a different context than the integration test. This kind of testing overhead will eventually lead to time-consuming and hard-to-reproduce mistakes.

Conclusion: If you are looking forward to implementing unit testing or integration testing or both for your software development project, then do visit online a globally acclaimed software testing services company that will provide you a viable testing strategy that will hugely benefit your project specific needs.