Derived Delete and Exists

Author: christophstrobl

spring-data-jpa/src/test/java/org/springframework/data/jpa/repository/query/JpaQueryCreatorTests.java

@@ -690,7 +690,29 @@ void tupleProjection(Class<?> resultType) {
 				.validateQuery();
 	}
 
-	// TODO: delete queries
+	@ParameterizedTest
+	@ValueSource(classes = { Long.class, List.class, Person.class })
+	void delete(Class<?> resultType) {
+
+		queryCreator(PERSON) //
+				.forTree(Person.class, "deletePersonByFirstname") //
+				.returing(resultType) //
+				.withParameters("chris") //
+				.as(QueryCreatorTester::create) //
+				.expectJpql("SELECT p FROM %s p WHERE p.firstname = ?1", Person.class.getName()) //
+				.validateQuery();
+	}
+
+	@Test
+	void exists() {
+
+		queryCreator(PERSON) //
+				.forTree(Person.class, "existsPersonByFirstname") //
+				.returing(Long.class).withParameters("chris") //
+				.as(QueryCreatorTester::create) //
+				.expectJpql("SELECT p.id id FROM %s p WHERE p.firstname = ?1", Person.class.getName()) //
+				.validateQuery();
+	}
 
 	QueryCreatorBuilder queryCreator(Metamodel metamodel) {
 		return new DefaultCreatorBuilder(metamodel);