/*
    *    Copyright 2012-2022 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.mybatis.scripting.velocity;
  
  import static org.junit.jupiter.api.Assertions.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.apache.velocity.runtime.RuntimeConstants;
  import org.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.Test;
  
  class InDirectiveTest {
  
    private static VelocityContext ctxt;
    private static VelocityEngine velocity;
  
    @BeforeAll
    static void setUpClass() {
      Properties p = new Properties();
      p.setProperty(RuntimeConstants.CUSTOM_DIRECTIVES, InDirective.class.getName());
      velocity = new VelocityEngine();
      velocity.setProperty("runtime.log", "target/velocity.log");
      velocity.init(p);
      ctxt = new VelocityContext();
      ctxt.put(SQLScriptSource.MAPPING_COLLECTOR_KEY,
          new ParameterMappingCollector(new ParameterMapping[] {}, new HashMap<>(), new Configuration()));
      StringWriter writer = new StringWriter();
      velocity.evaluate(ctxt, writer, "WARM", "1+1");
    }
  
    @Test
    void ensureInClauseHasEmpty() {
      StringWriter w = new StringWriter();
      ctxt.put("list", Collections.emptyList());
      velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end");
      String result = w.toString();
      assertEquals("((id NOT IN ( NULL )))", result);
    }
  
    @Test
    void ensureInClauseHasOne() {
      StringWriter w = new StringWriter();
      ctxt.put("list", Collections.singletonList("?"));
      velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end");
      String result = w.toString();
      assertEquals(1, result.split("\\?").length - 1);
      assertEquals(1, result.split("IN").length - 1);
    }
  
    @Test
    void ensureInClauseHasTwo() {
      StringWriter w = new StringWriter();
      ctxt.put("list", Arrays.asList("?", "?"));
      velocity.evaluate(ctxt, w, "TEST", "#in($list $id 'id')?#end");
      String result = w.toString();
      assertEquals(2, result.split("\\?").length - 1);
    }
  
    @Test
    void ensureInClauseHasOneThousand() {
      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(1000, result.split("\\?").length - 1);
      assertEquals(0, result.split("OR").length - 1);
    }
  
    @Test
    void ensureInClauseHasOneThousandAndOne() {
      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(1001, result.split("\\?").length - 1);
     assertEquals(1, result.split("OR").length - 1);
   }
 
   @Test
   void ensureInClauseHasTwoThousand() {
     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(2000, result.split("\\?").length - 1);
     assertEquals(1, result.split("OR").length - 1);
   }
 
   @Test
   void ensureInClauseHasTwoThousandAndOne() {
     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(2001, result.split("\\?").length - 1);
     assertEquals(2, result.split("OR").length - 1);
   }
 
   @Test
   void ensureInClauseHasThreeThousandAndOne() {
     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(3001, result.split("\\?").length - 1);
     assertEquals(3, result.split("OR").length - 1);
   }
 
 }