arrayContainOnly

.arrayContainOnly()

Asserts that an array contains only the specified elements (no extras, no missing). Sets evaluation.result with extra/missing arrays if the assertion fails.

Examples

Basic Usage

expect([1, 2, 3]).to.containOnly([1, 2, 3]);
expect([1, 2, 3]).to.containOnly([3, 2, 1]);

With Negation

expect([1, 2, 3, 4]).to.not.containOnly([1, 2, 3]);

What Failures Look Like

When the assertion fails, you’ll see a clear error message:

// This would fail:
expect([1, 2, 3, 4]).to.containOnly([1, 2, 3]);

Modifiers

This assertion supports the following modifiers:

• .not - Negates the assertion
• .to - Language chain (no effect)
• .be - Language chain (no effect)