### Question:
R4ProgramMetadataToFhirDataProvider extends AbstractProgramMetadataToFhirDataProvider { @Nonnull @Override public Set<FhirVersion> getFhirVersions() { return FhirVersion.R4_ONLY; } R4ProgramMetadataToFhirDataProvider( @Nonnull ScriptExecutor scriptExecutor, @Nonnull ProgramMetadataService programMetadataService ); @Nonnull @Override Set<FhirVersion> getFhirVersions();  }### Answer:
@Test public void getFhirVersions() { Assert.assertEquals( FhirVersion.R4_ONLY, provider.getFhirVersions() ); }