Entity Framework

ModelMetadata can be generated automatically from an EDMX file or a Code-First DbContext, using the LazyEntityGraph.EntityFramework library.

For each method, the MetadataWorkspace is retrieved using Entity Framework, and then processed to extract entity types and relationships. It is cached statically so that this process is only run once per test run.

EDMX

To generate metadata from an EDMX, call ModelMetadataGenerator.LoadFromEdmxContext<TContext>(string contextName) (source). The contextName argument is the name of your EDMX model.

Code-First

To generate metadata from a Code-First DbContext, call LoadFromCodeFirstContext<TContext>(Func<string, TContext> createFromConnectionString) (source)