private AnnotationAttributes assertComponentScanAttributes(Class<?> element, String... expected) {
AnnotationAttributes attributes = findMergedAnnotationAttributes(element, ComponentScan.class);
assertNotNull("Should find @ComponentScan on " + element, attributes);
assertArrayEquals("value: ", expected, attributes.getStringArray("value"));
assertArrayEquals("basePackages: ", expected, attributes.getStringArray("basePackages"));
return attributes;
}
@Test
public void findMergedAnnotationAttributesOnClassWithMetaAndLocalTxConfig() {
AnnotationAttributes attributes =
findMergedAnnotationAttributes(MetaAndLocalTxConfigClass.class, Transactional.class);
assertNotNull("Should find @Transactional on MetaAndLocalTxConfigClass", attributes);
assertEquals(
"TX qualifier for MetaAndLocalTxConfigClass.",
"localTxMgr",
attributes.getString("qualifier"));
}
@Test
public void getMergedAnnotationAttributesOnClassWithLocalAnnotation() {
Class<?> element = TxConfig.class;
String name = TX_NAME;
AnnotationAttributes attributes = getMergedAnnotationAttributes(element, name);
assertNotNull("Annotation attributes for @Transactional on TxConfig", attributes);
assertEquals("value for TxConfig.", "TxConfig", attributes.getString("value"));
// Verify contracts between utility methods:
assertTrue(isAnnotated(element, name));
}
@Test
public void
findMergedAnnotationAttributesOnClassWithAttributeAliasInComposedAnnotationAndNestedAnnotationsInTargetAnnotation() {
AnnotationAttributes attributes =
assertComponentScanAttributes(TestComponentScanClass.class, "com.example.app.test");
Filter[] excludeFilters = attributes.getAnnotationArray("excludeFilters", Filter.class);
assertNotNull(excludeFilters);
List<String> patterns = stream(excludeFilters).map(Filter::pattern).collect(toList());
assertEquals(asList("*Test", "*Tests"), patterns);
}
@Test
public void getMergedAnnotationAttributesFavorsLocalComposedAnnotationOverInheritedAnnotation() {
Class<?> element = SubClassWithInheritedAnnotation.class;
String name = TX_NAME;
AnnotationAttributes attributes = getMergedAnnotationAttributes(element, name);
assertNotNull(
"AnnotationAttributes for @Transactional on SubClassWithInheritedAnnotation", attributes);
// Verify contracts between utility methods:
assertTrue(isAnnotated(element, name));
assertTrue(
"readOnly flag for SubClassWithInheritedAnnotation.", attributes.getBoolean("readOnly"));
}
@Test
public void getMergedAnnotationAttributesWithAliasedValueComposedAnnotation() {
Class<?> element = AliasedValueComposedContextConfigClass.class;
String name = ContextConfig.class.getName();
AnnotationAttributes attributes = getMergedAnnotationAttributes(element, name);
assertNotNull("Should find @ContextConfig on " + element.getSimpleName(), attributes);
assertArrayEquals("locations", asArray("test.xml"), attributes.getStringArray("locations"));
assertArrayEquals("value", asArray("test.xml"), attributes.getStringArray("value"));
// Verify contracts between utility methods:
assertTrue(isAnnotated(element, name));
}
@Test
public void
getMergedAnnotationAttributesWithImplicitAliasesInMetaAnnotationOnComposedAnnotation() {
Class<?> element = ComposedImplicitAliasesContextConfigClass.class;
String name = ImplicitAliasesContextConfig.class.getName();
AnnotationAttributes attributes = getMergedAnnotationAttributes(element, name);
String[] expected = asArray("A.xml", "B.xml");
assertNotNull(
"Should find @ImplicitAliasesContextConfig on " + element.getSimpleName(), attributes);
assertArrayEquals("groovyScripts", expected, attributes.getStringArray("groovyScripts"));
assertArrayEquals("xmlFiles", expected, attributes.getStringArray("xmlFiles"));
assertArrayEquals("locations", expected, attributes.getStringArray("locations"));
assertArrayEquals("value", expected, attributes.getStringArray("value"));
// Verify contracts between utility methods:
assertTrue(isAnnotated(element, name));
}
private void getMergedAnnotationAttributesWithHalfConventionBasedAndHalfAliasedComposedAnnotation(
Class<?> clazz) {
String[] expected = asArray("explicitDeclaration");
String name = ContextConfig.class.getName();
String simpleName = clazz.getSimpleName();
AnnotationAttributes attributes = getMergedAnnotationAttributes(clazz, name);
assertNotNull("Should find @ContextConfig on " + simpleName, attributes);
assertArrayEquals(
"locations for class [" + clazz.getSimpleName() + "]",
expected,
attributes.getStringArray("locations"));
assertArrayEquals(
"value for class [" + clazz.getSimpleName() + "]",
expected,
attributes.getStringArray("value"));
// Verify contracts between utility methods:
assertTrue(isAnnotated(clazz, name));
}
@Test
public void findAndSynthesizeAnnotationAttributesOnClassWithAttributeAliasesInTargetAnnotation() {
String qualifier = "aliasForQualifier";
// 1) Find and merge AnnotationAttributes from the annotation hierarchy
AnnotationAttributes attributes =
findMergedAnnotationAttributes(
AliasedTransactionalComponentClass.class, AliasedTransactional.class);
assertNotNull("@AliasedTransactional on AliasedTransactionalComponentClass.", attributes);
// 2) Synthesize the AnnotationAttributes back into the target annotation
AliasedTransactional annotation =
AnnotationUtils.synthesizeAnnotation(
attributes, AliasedTransactional.class, AliasedTransactionalComponentClass.class);
assertNotNull(annotation);
// 3) Verify that the AnnotationAttributes and synthesized annotation are equivalent
assertEquals("TX value via attributes.", qualifier, attributes.getString("value"));
assertEquals("TX value via synthesized annotation.", qualifier, annotation.value());
assertEquals("TX qualifier via attributes.", qualifier, attributes.getString("qualifier"));
assertEquals("TX qualifier via synthesized annotation.", qualifier, annotation.qualifier());
}