Add unit tests demonstrating issue with query alias discovery in order by clause.

Author: Pavou

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

@@ -25,6 +25,7 @@
 import org.junit.jupiter.api.Test;
 import org.springframework.dao.InvalidDataAccessApiUsageException;
 import org.springframework.data.domain.Sort;
+import org.springframework.data.domain.Sort.Direction;
 import org.springframework.data.domain.Sort.Order;
 import org.springframework.data.jpa.domain.JpaSort;
 
@@ -438,6 +439,26 @@ void discoversAliasWithComplexFunction() {
 						.contains("myAlias");
 	}
 
+	@Test
+	void discoversAliasInQueryWithSpacesAfterComma() {
+
+		String query = "select 1 as alias1, 2 as alias2 from MyEntity mnt";
+		Sort sort = Sort.by(Direction.ASC, "alias2");
+		System.out.println(applySorting(query, sort));
+		assertThat(QueryUtils.applySorting(query, sort))
+			.endsWith("order by alias2 asc");
+	}
+
+	@Test
+	void discoversAliasInQueryWithoutSpacesAfterComma() {
+
+		String query = "select 1 as alias1,2 as alias2 from MyEntity mnt";
+		Sort sort = Sort.by(Direction.ASC, "alias2");
+		System.out.println(applySorting(query, sort));
+		assertThat(QueryUtils.applySorting(query, sort))
+			.endsWith("order by alias2 asc");
+	}
+
 	@Test // DATAJPA-1506
 	void detectsAliasWithGroupAndOrderBy() {