Is there way to create custom metadata from test code?
No, there is no way to create custom metadata from test code, nor should there be. It’s metadata, and allowing custom metadata to be edited in code erodes the critical distinction between metadata and data. If code can edit metadata, it introduces a level of unpredictability to setup that could make administrators’ lives a nightmare.
How to test custom metadata in Salesforce Stack Exchange?
Salesforce Developers put out the blog post Testing Custom Metadata Types that includes the section Testing Global Custom Metadata….add an extra field to your custom metadata type to indicate what sort of tests the type is active for. For example, you could add a Text field called TestCase__c to your type.
How to manage custom metadata types and records?
The moral of this unit is that field management can get complicated quickly. It’s important to plan how you want to manage your custom metadata types, fields, and records before you package your app and release it into the wild. Subscribers to be able to change anything within the metadata type.
How to declare apex variable of custom metadata type?
For example, declare an Apex variable of a custom metadata type like this. Now let’s get the values of a custom field from all the custom metadata records of a certain type. Notice that even though the suffix for the custom metadata type is __mdt, the suffix for the custom field stays as __c.
How to test custom metadata in apex Test class?
If you try to create test records for custom metadata in a conventional manner, obviously it would be disappointing to see the errors. The simple way is to create a JSON structure for the fields in the Custom Metadata for as many records you want to create in your test code and deserialize it.
How to declare variables that refer to custom metadata types?
Declaring variables that refer to custom metadata types is similar to what you already do when working in Apex. For example, declare an Apex variable of a custom metadata type like this. Now let’s get the values of a custom field from all the custom metadata records of a certain type.