1 <?xml version="1.0" encoding="UTF-8"?>
3 <sect2 id="zend.test.phpunit.db.quickstart">
4 <title>Quickstart</title>
6 <sect3 id="zend.test.phpunit.db.quickstart.testcase">
7 <title>Setup a Database TestCase</title>
10 We are now writting some database tests for the Bug Database example in the
11 <classname>Zend_Db_Table</classname> documentation. First we begin to test that
12 inserting a new bug is actually saved in the database correctly. First we have to
13 setup a test-class that extends
14 <classname>Zend_Test_PHPUnit_DatabaseTestCase</classname>. This class extends the
15 PHPUnit Database Extension, which in turn extends the basic
16 <classname>PHPUnit_Framework_TestCase</classname>. A database testcase contains two
17 abstract methods that have to be implemented, one for the database connection and
18 one for the initial dataset that should be used as seed or fixture.
23 You should be familiar with the PHPUnit Database extension to follow this quickstart
24 easily. Although all the concepts are explained in this documentation it may be
25 helpful to read the PHPUnit documentation first.
29 <programlisting language="php"><![CDATA[
30 class BugsTest extends Zend_Test_PHPUnit_DatabaseTestCase
32 private $_connectionMock;
35 * Returns the test database connection.
37 * @return PHPUnit_Extensions_Database_DB_IDatabaseConnection
39 protected function getConnection()
41 if($this->_connectionMock == null) {
42 $connection = Zend_Db::factory(...);
43 $this->_connectionMock = $this->createZendDbConnection(
44 $connection, 'zfunittests'
46 Zend_Db_Table_Abstract::setDefaultAdapter($connection);
48 return $this->_connectionMock;
52 * @return PHPUnit_Extensions_Database_DataSet_IDataSet
54 protected function getDataSet()
56 return $this->createFlatXmlDataSet(
57 dirname(__FILE__) . '/_files/bugsSeed.xml'
64 Here we create the database connection and seed some data into the database. Some
65 important details should be noted on this code:
71 You cannot directly return a <classname>Zend_Db_Adapter_Abstract</classname>
72 from the <methodname>getConnection()</methodname> method, but a PHPUnit
73 specific wrapper which is generated with the
74 <methodname>createZendDbConnection()</methodname> method.
80 The database schema (tables and database) is not re-created on every
81 testrun. The database and tables have to be created manually before running
88 Database tests by default truncate the data during
89 <methodname>setUp()</methodname> and then insert the seed data which is
90 returned from the <methodname>getDataSet()</methodname> method.
96 DataSets have to implement the interface
97 <classname>PHPUnit_Extensions_Database_DataSet_IDataSet</classname>.
98 There is a wide range of <acronym>XML</acronym> and YAML configuration file
99 types included in PHPUnit which allows to specifiy how the tables and datasets
100 should look like and you should look into the PHPUnit documentation to get the
101 latest information on these dataset specifications.
107 <sect3 id="zend.test.phpunit.db.quickstart.dataset">
108 <title>Specify a seed dataset</title>
111 In the previous setup for the database testcase we have specified a seed file for the
112 database fixture. We now create this file specified in the Flat <acronym>XML</acronym>
116 <programlisting language="xml"><![CDATA[
117 <?xml version="1.0" encoding="UTF-8" ?>
119 <zfbugs bug_id="1" bug_description="system needs electricity to run"
120 bug_status="NEW" created_on="2007-04-01 00:00:00"
121 updated_on="2007-04-01 00:00:00" reported_by="goofy"
122 assigned_to="mmouse" verified_by="dduck" />
123 <zfbugs bug_id="2" bug_description="Implement Do What I Mean function"
124 bug_status="VERIFIED" created_on="2007-04-02 00:00:00"
125 updated_on="2007-04-02 00:00:00" reported_by="goofy"
126 assigned_to="mmouse" verified_by="dduck" />
127 <zfbugs bug_id="3" bug_description="Where are my keys?" bug_status="FIXED"
128 created_on="2007-04-03 00:00:00" updated_on="2007-04-03 00:00:00"
129 reported_by="dduck" assigned_to="mmouse" verified_by="dduck" />
130 <zfbugs bug_id="4" bug_description="Bug no product" bug_status="INCOMPLETE"
131 created_on="2007-04-04 00:00:00" updated_on="2007-04-04 00:00:00"
132 reported_by="mmouse" assigned_to="goofy" verified_by="dduck" />
137 We will work with this four entries in the database table "zfbugs" in the next
138 examples. The required MySQL schema for this example is:
141 <programlisting language="sql"><![CDATA[
142 CREATE TABLE IF NOT EXISTS `zfbugs` (
143 `bug_id` int(11) NOT NULL auto_increment,
144 `bug_description` varchar(100) default NULL,
145 `bug_status` varchar(20) default NULL,
146 `created_on` datetime default NULL,
147 `updated_on` datetime default NULL,
148 `reported_by` varchar(100) default NULL,
149 `assigned_to` varchar(100) default NULL,
150 `verified_by` varchar(100) default NULL,
151 PRIMARY KEY (`bug_id`)
152 ) ENGINE=InnoDB AUTO_INCREMENT=1 ;
156 <sect3 id="zend.test.phpunit.db.quickstart.initial-tests">
157 <title>A few initial database tests</title>
160 Now that we have implemented the two required abstract methods of the
161 <classname>Zend_Test_PHPUnit_DatabaseTestCase</classname> and specified the seed
162 database content, which will be re-created for each new test, we can go about to make
163 our first assertion. This will be a test to insert a new bug.
166 <programlisting language="php"><![CDATA[
167 class BugsTest extends Zend_Test_PHPUnit_DatabaseTestCase
169 public function testBugInsertedIntoDatabase()
171 $bugsTable = new Bugs();
174 'created_on' => '2007-03-22 00:00:00',
175 'updated_on' => '2007-03-22 00:00:00',
176 'bug_description' => 'Something wrong',
177 'bug_status' => 'NEW',
178 'reported_by' => 'garfield',
179 'verified_by' => 'garfield',
180 'assigned_to' => 'mmouse',
183 $bugsTable->insert($data);
185 $ds = new Zend_Test_PHPUnit_Db_DataSet_QueryDataSet(
186 $this->getConnection()
188 $ds->addTable('zfbugs', 'SELECT * FROM zfbugs');
190 $this->assertDataSetsEqual(
191 $this->createFlatXmlDataSet(dirname(__FILE__)
192 . "/_files/bugsInsertIntoAssertion.xml"),
200 Now up to the <methodname>$bugsTable->insert($data);</methodname> everything looks
201 familiar. The lines after that contain the assertion methodname. We want to verify
202 that after inserting the new bug the database has been updated correctly with the
203 given data. For this we create a
204 <classname>Zend_Test_PHPUnit_Db_DataSet_QueryDataSet</classname> instance and give
205 it a database connection. We will then tell this dataset that it contains a table
206 "zfbugs" which is given by an <acronym>SQL</acronym> statement. This current/actual
207 state of the database is compared to the expected database state which is contained in
208 another <acronym>XML</acronym> file "bugsInsertIntoAssertions.xml". This
209 <acronym>XML</acronym> file is a slight deviation from the one given above and contains
210 another row with the expected data:
213 <programlisting language="xml"><![CDATA[
214 <?xml version="1.0" encoding="UTF-8" ?>
216 <!-- previous 4 rows -->
217 <zfbugs bug_id="5" bug_description="Something wrong" bug_status="NEW"
218 created_on="2007-03-22 00:00:00" updated_on="2007-03-22 00:00:00"
219 reported_by="garfield" assigned_to="mmouse" verified_by="garfield" />
224 There are other ways to assert that the current database state equals an expected
225 state. The "Bugs" table in the example already nows a lot about its inner state, so
226 why not use this to our advantage? The next example will assert that deleting from
227 the database is possible:
230 <programlisting language="php"><![CDATA[
231 class BugsTest extends Zend_Test_PHPUnit_DatabaseTestCase
233 public function testBugDelete()
235 $bugsTable = new Bugs();
238 $bugsTable->getAdapter()->quoteInto("bug_id = ?", 4)
241 $ds = new Zend_Test_PHPUnit_Db_DataSet_DbTableDataSet();
242 $ds->addTable($bugsTable);
244 $this->assertDataSetsEqual(
245 $this->createFlatXmlDataSet(dirname(__FILE__)
246 . "/_files/bugsDeleteAssertion.xml"),
254 We have created a <classname>Zend_Test_PHPUnit_Db_DataSet_DbTableDataSet</classname>
255 dataset here, which takes any <classname>Zend_Db_Table_Abstract</classname> instance
256 and adds it to the dataset with its table name, in this example "zfbugs". You could
257 add several tables more if you wanted using the method
258 <methodname>addTable()</methodname> if you want to check for expected database state
259 in more than one table.
263 Here we only have one table and check against an expected database state in
264 "bugsDeleteAssertion.xml" which is the original seed dataset without the row with id
269 Since we have only checked that two specific tables (not datasets) are equal in the
270 previous examples we should also look at how to assert that two tables are equal.
271 Therefore we will add another test to our TestCase which verifies updating behaviour
275 <programlisting language="php"><![CDATA[
276 class BugsTest extends Zend_Test_PHPUnit_DatabaseTestCase
278 public function testBugUpdate()
280 $bugsTable = new Bugs();
283 'updated_on' => '2007-05-23',
284 'bug_status' => 'FIXED'
287 $where = $bugsTable->getAdapter()->quoteInto('bug_id = ?', 1);
289 $bugsTable->update($data, $where);
291 $rowset = $bugsTable->fetchAll();
293 $ds = new Zend_Test_PHPUnit_Db_DataSet_DbRowset($rowset);
294 $assertion = $this->createFlatXmlDataSet(
295 dirname(__FILE__) . '/_files/bugsUpdateAssertion.xml'
297 $expectedRowsets = $assertion->getTable('zfbugs');
299 $this->assertTablesEqual(
300 $expectedRowsets, $ds
307 Here we create the current database state from a
308 <classname>Zend_Db_Table_Rowset_Abstract</classname> instance in conjunction with
309 the <methodname>Zend_Test_PHPUnit_Db_DataSet_DbRowset($rowset)</methodname> instance
310 which creates an internal data-representation of the rowset. This can again be
311 compared against another data-table by using the
312 <methodname>$this->assertTablesEqual()</methodname> assertion.