Introduction to Assertion

Assertions allow you to test the code you have written by performing a hard verification of a test designed.

The following are examples of assertion modules that are available for use:

• Assert
• Should
• Expect
• Chai(utilizes the assert, should,expect styles with several added features and capabilities)
• Must

These are the factors that could influence your choice of assertion module:

• Ease of Writing (Natural Language vs Traditional Language)
• Reporting Ability (Error Messaging)
• Helpful Documentation (Accessibility and Quality)

The articles below will look deeper into the best tools for assertions.