Mock ClientCache.getQueryService(poolName:String).

Mock QueryService.newQuery(:String).

Mock Query.execute(..).

Mock SelectResults<?>, ObjectType and CollectionType.

spring-data-geode-test/src/test/java/org/springframework/data/gemfire/tests/MockCacheQueryServiceInteractionsUnitTests.java

@@ -0,0 +1,109 @@
+/*
+ *  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.gemfire.tests;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+
+import org.apache.geode.cache.GemFireCache;
+import org.apache.geode.cache.client.ClientCache;
+import org.apache.geode.cache.query.Query;
+import org.apache.geode.cache.query.QueryService;
+import org.apache.geode.cache.query.SelectResults;
+import org.apache.geode.cache.query.types.CollectionType;
+import org.apache.geode.cache.query.types.ObjectType;
+
+import org.springframework.data.gemfire.tests.mock.GemFireMockObjectsSupport;
+
+/**
+ * Unit Tests for GemFire/Geode {@literal Mock} {@link GemFireCache} {@link QueryService} and {@link Query OQL Queries}.
+ *
+ * @author John Blum
+ * @see org.junit.Test
+ * @see org.apache.geode.cache.GemFireCache
+ * @see org.apache.geode.cache.client.ClientCache
+ * @see org.apache.geode.cache.query.QueryService
+ * @see org.apache.geode.cache.query.Query
+ * @see org.apache.geode.cache.query.SelectResults
+ * @see org.apache.geode.cache.query.types.CollectionType
+ * @see org.apache.geode.cache.query.types.ObjectType
+ * @since 0.0.19
+ */
+public class MockCacheQueryServiceInteractionsUnitTests {
+
+	private void assertSelectResults(SelectResults<Object> selectResults) {
+
+		assertThat(selectResults).isNotNull();
+		assertThat(selectResults.asList()).isEmpty();
+		assertThat(selectResults.asSet()).isEmpty();
+		assertThat(selectResults.isModifiable()).isFalse();
+		assertThat(selectResults.occurrences("MOCK")).isZero();
+		assertThat(selectResults.occurrences("TEST")).isZero();
+
+		CollectionType collectionType = selectResults.getCollectionType();
+
+		assertThat(collectionType).isNotNull();
+		assertThat(collectionType.allowsDuplicates()).isFalse();
+		assertThat(collectionType.isOrdered()).isFalse();
+
+		ObjectType objectType = collectionType.getElementType();
+
+		assertThat(objectType).isNotNull();
+		assertThat(objectType.getSimpleClassName()).isEqualTo(Object.class.getSimpleName());
+		assertThat(objectType.isCollectionType()).isFalse();
+		assertThat(objectType.isMapType()).isFalse();
+		assertThat(objectType.isStructType()).isFalse();
+		assertThat(objectType.resolveClass()).isEqualTo(Object.class);
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	public void queryServiceInteractionsAndQueryExecutionIsCorrect() throws Exception {
+
+		String queryString = "SELECT * FROM /Example WHERE id = $1";
+
+		ClientCache mockClientCache = GemFireMockObjectsSupport.mockClientCache();
+
+		assertThat(mockClientCache).isNotNull();
+
+		QueryService mockQueryService = mockClientCache.getQueryService();
+
+		assertThat(mockQueryService).isNotNull();
+
+		Query mockQuery = mockQueryService.newQuery(queryString);
+
+		assertThat(mockQuery).isNotNull();
+		assertThat(mockQuery.getQueryString()).isEqualTo(queryString);
+		assertThat(mockQuery.getStatistics()).isNotNull();
+
+		Object results = mockQuery.execute();
+
+		assertThat(results).isInstanceOf(SelectResults.class);
+
+		SelectResults<Object> mockSelectResults = (SelectResults<Object>) results;
+
+		assertSelectResults(mockSelectResults);
+
+		results = mockQuery.execute(1);
+
+		assertThat(results).isInstanceOf(SelectResults.class);
+
+		mockSelectResults = (SelectResults<Object>) results;
+
+		assertSelectResults(mockSelectResults);
+	}
+}