Java tutorial
/* * Copyright 2012 MyBatis.org. * * 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 * * http://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.mybatis.scripting.velocity; import static org.junit.Assert.assertEquals; import java.io.StringWriter; import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.Properties; import org.apache.ibatis.mapping.ParameterMapping; import org.apache.ibatis.session.Configuration; import org.apache.velocity.VelocityContext; import org.apache.velocity.app.VelocityEngine; import org.junit.BeforeClass; import org.junit.Test; public class InDirectiveTest { static VelocityContext ctxt; static VelocityEngine velocity; @BeforeClass public static void setUpClass() throws Exception { Properties p = new Properties(); p.setProperty("userdirective", InDirective.class.getName()); velocity = new VelocityEngine(); velocity.init(p); ctxt = new VelocityContext(); ctxt.put(SQLScriptSource.MAPPING_COLLECTOR_KEY, new ParameterMappingCollector(new ParameterMapping[] {}, new HashMap<String, Object>(), new Configuration())); StringWriter writer = new StringWriter(); velocity.evaluate(ctxt, writer, "WARM", "1+1"); } @Test public void ensureInClauseHasOne() throws Exception { StringWriter w = new StringWriter(); ctxt.put("list", Collections.singletonList("?")); velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end"); String result = w.toString(); assertEquals(result.split("\\?").length - 1, 1); assertEquals(result.split("IN").length - 1, 1); } @Test public void ensureInClauseHasTwo() throws Exception { StringWriter w = new StringWriter(); ctxt.put("list", Arrays.asList("?", "?")); velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end"); String result = w.toString(); assertEquals(result.split("\\?").length - 1, 2); } @Test public void ensureInClauseHasOneThousand() throws Exception { StringWriter w = new StringWriter(); String[] arr = new String[1000]; Arrays.fill(arr, "?"); ctxt.put("list", Arrays.asList(arr)); velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end"); String result = w.toString(); assertEquals(result.split("\\?").length - 1, 1000); assertEquals(result.split("OR").length - 1, 0); } @Test public void ensureInClauseHasOneThousandAndOne() throws Exception { StringWriter w = new StringWriter(); String[] arr = new String[1001]; Arrays.fill(arr, "?"); ctxt.put("list", Arrays.asList(arr)); velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end"); String result = w.toString(); assertEquals(result.split("\\?").length - 1, 1001); assertEquals(result.split("OR").length - 1, 1); } @Test public void ensureInClauseHasTwoThousand() throws Exception { StringWriter w = new StringWriter(); String[] arr = new String[2000]; Arrays.fill(arr, "?"); ctxt.put("list", Arrays.asList(arr)); velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end"); String result = w.toString(); assertEquals(result.split("\\?").length - 1, 2000); assertEquals(result.split("OR").length - 1, 1); } @Test public void ensureInClauseHasTwoThousandAndOne() throws Exception { StringWriter w = new StringWriter(); String[] arr = new String[2001]; Arrays.fill(arr, "?"); ctxt.put("list", Arrays.asList(arr)); velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end"); String result = w.toString(); assertEquals(result.split("\\?").length - 1, 2001); assertEquals(result.split("OR").length - 1, 2); } @Test public void ensureInClauseHasThreeThousandAndOne() throws Exception { StringWriter w = new StringWriter(); String[] arr = new String[3001]; Arrays.fill(arr, "?"); ctxt.put("list", Arrays.asList(arr)); velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end"); String result = w.toString(); assertEquals(result.split("\\?").length - 1, 3001); assertEquals(result.split("OR").length - 1, 3); } }