### Question:
RemoteTerminologyServiceValidationSupport extends BaseValidationSupport implements IValidationSupport { @Override public boolean isValueSetSupported(ValidationSupportContext theValidationSupportContext, String theValueSetUrl) { return fetchValueSet(theValueSetUrl) != null; } RemoteTerminologyServiceValidationSupport(FhirContext theFhirContext); @Override CodeValidationResult validateCode(ValidationSupportContext theValidationSupportContext, ConceptValidationOptions theOptions, String theCodeSystem, String theCode, String theDisplay, String theValueSetUrl); @Override CodeValidationResult validateCodeInValueSet(ValidationSupportContext theValidationSupportContext, ConceptValidationOptions theOptions, String theCodeSystem, String theCode, String theDisplay, @Nonnull IBaseResource theValueSet); @Override IBaseResource fetchCodeSystem(String theSystem); @Override IBaseResource fetchValueSet(String theValueSetUrl); @Override boolean isCodeSystemSupported(ValidationSupportContext theValidationSupportContext, String theSystem); @Override boolean isValueSetSupported(ValidationSupportContext theValidationSupportContext, String theValueSetUrl); void setBaseUrl(String theBaseUrl); void addClientInterceptor(@Nonnull Object theClientInterceptor);  }### Answer:
@Test public void testIsValueSetSupported_False() { myValueSetProvider.myNextReturnValueSets = new ArrayList<>(); boolean outcome = mySvc.isValueSetSupported(null, "http: assertEquals(false, outcome); assertEquals("http: }
@Test public void testIsValueSetSupported_True() { myValueSetProvider.myNextReturnValueSets = new ArrayList<>(); myValueSetProvider.myNextReturnValueSets.add((ValueSet) new ValueSet().setId("ValueSet/123")); boolean outcome = mySvc.isValueSetSupported(null, "http: assertEquals(true, outcome); assertEquals("http: }