Creating a SchemaCase for Shared Test Code

Case template

Case templates are handy when identifying a pattern for test files that would benefit from shared code. Our refactors on the basic schema tests created two helper functions, valid_params/1 and invalid_params/1, that would be good to move into a common place to be reused by all our schema tests.

We’ll create a case template called SchemaCase and move the helper functions there. Let’s start by creating a new file called testing_ecto/test/schema_case.ex and add the basic structure for a case template: