TableElementCompilerTest.java

/**
 * Licensed to the Austrian Association for Software Tool Integration (AASTI)
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. The AASTI 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.openengsb.core.edbi.jdbc.sql;

import static org.junit.Assert.assertEquals;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.sql.Types;

/**
 * TableElementCompilerTest
 */
public class TableElementCompilerTest {

    private static final DataType INT = new DataType(Types.INTEGER, "INT");
    private static final DataType VARCHAR = new DataType(Types.LONGNVARCHAR, "VARCHAR");
    private static final DataType BOOL = new DataType(Types.BOOLEAN, "BOOL");

    @Before
    public void setUp() throws Exception {

    }

    @After
    public void tearDown() throws Exception {

    }

    @Test
    public void toSql_withNoElements_returnsCorrectSql() throws Exception {
        Table table = new Table("FOO");

        compileAndAssert("", table);
    }

    @Test
    public void toSql_withSingleColumn_returnsCorrectSql() throws Exception {
        Table table = new Table("FOO", new Column("COL", VARCHAR));

        compileAndAssert("COL VARCHAR", table);
    }

    @Test
    public void toSql_withMultipleColumns_returnsCorrectSql() throws Exception {
        Table table =
            new Table("FOO", new Column("COL", VARCHAR), new Column("COL2", INT), new Column("COL3", BOOL));

        compileAndAssert("COL VARCHAR,COL2 INT,COL3 BOOL", table);
    }

    @Test
    public void toSql_withColumnsThatContainsOptions_returnsCorrectSql() throws Exception {
        Table table =
            new Table("FOO", new Column("COL", VARCHAR, Column.Option.NOT_NULL), new Column("COL2", VARCHAR,
                Column.Option.NULL), new Column("COL3", INT, Column.Option.AUTO_INCREMENT));

        compileAndAssert("COL VARCHAR NOT NULL,COL2 VARCHAR,COL3 INT AUTO_INCREMENT", table);
    }

    @Test
    public void toSql_withUniqueConstraint_returnsCorrectSql() throws Exception {
        Table table = new Table("FOO", new Column("A", INT), new Column("B", INT), new UniqueConstraint("A"));

        compileAndAssert("A INT,B INT,UNIQUE (A)", table);
    }

    @Test
    public void toSql_withMultiColumnConstraint_returnsCorrectSql() throws Exception {
        Table table = new Table("FOO", new Column("A", INT), new Column("B", INT), new UniqueConstraint("A", "B"));

        compileAndAssert("A INT,B INT,UNIQUE (A,B)", table);
    }

    @Test
    public void toSql_withPrimaryKey_returnsCorrectSql() throws Exception {
        Table table = new Table("FOO", new Column("A", INT), new PrimaryKeyConstraint("A"));

        compileAndAssert("A INT,PRIMARY KEY (A)", table);
    }

    @Test
    public void toSql_withForeignKey_returnsCorrectSql() throws Exception {
        Table table = new Table("FOO", new Column("A", INT), new ReferentialConstraint("A", "R", "B"));

        compileAndAssert("A INT,(A) REFERENCES R (B)", table);
    }

    public static void compileAndAssert(String expected, Table table) {
        assertEquals(expected, new TableElementCompiler(table).toSql());
    }

}