Assert that the given changeset, query, or action input has a matching error.

Use the optional second argument to assert that the errors (all together) are of a specific class.

A macro for comparing Ash resources while ignoring metadata differences.

Overview

Ash resources contain metadata fields (__metadata__ and __meta__) that track internal state like loaded relationships and action history. These fields can cause equality comparisons to fail even when the actual data is identical. This macro uses strip_metadata/1 to remove these fields before comparison.

Usage

Use when comparing resources that have gone through different processing paths, such as comparing seeded data with data that has been processed through resource actions.

Supported Operators

• == and === - Equality comparison
• != and !== - Inequality comparison
• in and not in - Membership testing

Examples

# Compare resources
assert_stripped user1 == user2
assert_stripped [user1, user2] === [user3, user4]
assert_stripped user1 in [user2, user3, user4]
assert_stripped user1 not in [user2, user3, user4]

Refute that the given changeset, query, or action input has a matching error.

The error_class argument has been deprecated and should not be used.

Clears the __metadata__ field and the underlying ecto __meta__ field

This allows for easier comparison of changeset/query results