| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.empire.db.expr.set; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.empire.db.CompanyDB; |
| import org.apache.empire.db.DBColumn; |
| import org.apache.empire.db.DBDatabase; |
| import org.apache.empire.db.DBExpr; |
| import org.apache.empire.db.DBSQLBuilder; |
| import org.apache.empire.db.MockDriver; |
| import org.apache.empire.db.context.DBContextStatic; |
| import org.apache.empire.dbms.DBMSHandler; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class DBSetExprTest |
| { |
| private DBMSHandler dbms; |
| private DBSetExpr expr; |
| private CompanyDB testDB; |
| |
| @Before |
| public void setup(){ |
| dbms = new MockDriver(); |
| testDB = new CompanyDB(); |
| testDB.open(new DBContextStatic(dbms, null)); |
| expr = new DBSetExpr(testDB.EMPLOYEE.FIRSTNAME, "JUnit"); |
| } |
| |
| @Test |
| public void testGetDatabase() |
| { |
| assertEquals(testDB, expr.getDatabase()); |
| } |
| |
| @Test |
| public void testAddSQL() |
| { |
| DBSQLBuilder builder = dbms.createSQLBuilder(); |
| expr.addSQL(builder, 0); |
| assertEquals("", builder.toString()); |
| expr.addSQL(builder, DBExpr.CTX_DEFAULT); |
| assertEquals("FIRSTNAME='JUnit'", builder.toString()); |
| } |
| |
| @Test |
| public void testAddSQLEmptyString() |
| { |
| DBSQLBuilder builder = dbms.createSQLBuilder(); |
| DBSetExpr setExpr = new DBSetExpr(testDB.EMPLOYEE.FIRSTNAME, ""); |
| setExpr.addSQL(builder, DBExpr.CTX_DEFAULT); |
| // Empire-DB by default sees '' as null |
| assertEquals("FIRSTNAME=null", builder.toString()); |
| } |
| |
| @Test |
| public void testAddSQLEmptyStringConstant() |
| { |
| DBSQLBuilder builder = dbms.createSQLBuilder(); |
| DBSetExpr setExpr = new DBSetExpr(testDB.EMPLOYEE.FIRSTNAME, DBDatabase.EMPTY_STRING); |
| setExpr.addSQL(builder, DBExpr.CTX_DEFAULT); |
| assertEquals("FIRSTNAME=''", builder.toString()); |
| } |
| |
| @Test |
| public void testAddReferencedColumns() |
| { |
| Set<DBColumn> cols = new HashSet<DBColumn>(); |
| expr.addReferencedColumns(cols); |
| assertTrue(cols.contains(testDB.EMPLOYEE.FIRSTNAME)); |
| } |
| |
| @Test |
| public void testGetTable() |
| { |
| assertEquals(testDB.EMPLOYEE, expr.getTable()); |
| } |
| |
| @Test |
| public void testGetColumn() |
| { |
| assertEquals(testDB.EMPLOYEE.FIRSTNAME, expr.getColumn()); |
| } |
| |
| @Test |
| public void testGetValue() |
| { |
| assertEquals("JUnit", expr.getValue()); |
| } |
| |
| @Test |
| public void testSetValue() |
| { |
| expr.setValue("JUnit2"); |
| assertEquals("JUnit2", expr.getValue()); |
| } |
| |
| } |