A minimalistic, zero-dependency testing helper for Go.

testutils is a lightweight alternative to heavy assertion libraries like testify/assert. It provides a single "Swiss Army knife" function—Equal—that intelligently handles assertions for all kinds of data types, reducing boilerplate without bloating your go.mod.

• The "Switch Knife" Function: One function (Equal) capable of comparing scalars, errors, structs, slices, and maps. You don't need AssertNil, AssertMapEqual, or AssertString.
• Zero Dependencies: Keeps your project's dependency graph clean.
• Reflect-Based: Automatically handles deep equality checks for complex structures, making it a powerful drop-in for standard Go testing.
• Readable Output: formatted error messages when assertions fail, making debugging easier.