DATAJDBC-378 - Polishing

Move non integration tests to separate class.

Original Pull Request: #155

Author: christophstrobl

src/test/java/org/springframework/data/relational/core/JdbcAggregateTemplateUnitTests.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright 2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.jdbc.core;
+
+import static java.util.Collections.*;
+import static org.assertj.core.api.Assertions.*;
+
+import lombok.Data;
+
+import javax.sql.DataSource;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.relational.core.conversion.BasicRelationalConverter;
+import org.springframework.data.relational.core.conversion.RelationalConverter;
+import org.springframework.data.relational.core.mapping.Column;
+import org.springframework.data.relational.core.mapping.NamingStrategy;
+import org.springframework.data.relational.core.mapping.RelationalMappingContext;
+import org.springframework.jdbc.core.namedparam.NamedParameterJdbcOperations;
+import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
+
+/**
+ * @author Christoph Strobl
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class JdbcAggregateTemplateUnitTests {
+
+	JdbcAggregateOperations template;
+
+	@Mock ApplicationEventPublisher eventPublisher;
+	@Mock DataSource dataSource;
+
+	@Before
+	public void setUp() {
+
+		RelationalMappingContext mappingContext = new RelationalMappingContext(NamingStrategy.INSTANCE);
+		RelationalConverter converter = new BasicRelationalConverter(mappingContext);
+		NamedParameterJdbcOperations namedParameterJdbcOperations = new NamedParameterJdbcTemplate(dataSource);
+		DataAccessStrategy dataAccessStrategy = new DefaultDataAccessStrategy(new SqlGeneratorSource(mappingContext),
+				mappingContext, converter, namedParameterJdbcOperations);
+		template = new JdbcAggregateTemplate(eventPublisher, mappingContext, converter, dataAccessStrategy);
+	}
+
+	@Test // DATAJDBC-378
+	public void findAllByIdMustNotAcceptNullArgumentForType() {
+		assertThatThrownBy(() -> template.findAllById(singleton(23L), null)).isInstanceOf(IllegalArgumentException.class);
+	}
+
+	@Test // DATAJDBC-378
+	public void findAllByIdMustNotAcceptNullArgumentForIds() {
+
+		assertThatThrownBy(() -> template.findAllById(null, SampleEntity.class))
+				.isInstanceOf(IllegalArgumentException.class);
+	}
+
+	@Test // DATAJDBC-378
+	public void findAllByIdWithEmpthListMustReturnEmptyResult() {
+		assertThat(template.findAllById(emptyList(), SampleEntity.class)).isEmpty();
+	}
+
+	@Data
+	private static class SampleEntity {
+
+		@Column("id1") @Id private Long id;
+
+		private String name;
+	}
+}