编写 PHPUnit 测试--数据供给器

<?php
class DataTest extends PHPUnit_Framework_TestCase{
    /**
     * @dataProvider additionProvider
     */
    public function testAdd($a, $b, $expected)
    {
        $this->assertEquals($expected, $a + $b);
    }   
     public function additionProvider()
    {
        return array(          array(0, 0, 0),          array(0, 1, 1),          array(1, 0, 1),          array(1, 1, 3)
        );
    }
}?>

phpunit DataTestPHPUnit 4.2.0 by Sebastian Bergmann.
...F
Time: 0 seconds, Memory: 5.75Mb
There was 1 failure:
1) DataTest::testAdd with data set #3 (1, 1, 3)
Failed asserting that 2 matches expected 3.
/home/sb/DataTest.php:9
FAILURES!
Tests: 4, Assertions: 4, Failures: 1.

<?php
require 'CsvFileIterator.php';class DataTest extends PHPUnit_Framework_TestCase{
    /**
     * @dataProvider additionProvider
     */
    public function testAdd($a, $b, $expected)
    {
        $this->assertEquals($expected, $a + $b);
    }    
    public function additionProvider()
    {
        return new CsvFileIterator('data.csv');
    }
}?>

phpunit DataTestPHPUnit 4.2.0 by Sebastian Bergmann.
...F
Time: 0 seconds, Memory: 5.75Mb
There was 1 failure:
1) DataTest::testAdd with data set #3 ('1', '1', '3')
Failed asserting that 2 matches expected '3'.
/home/sb/DataTest.php:11
FAILURES!
Tests: 4, Assertions: 4, Failures: 1.

<?php
class CsvFileIterator implements Iterator {
    protected $file;    
    protected $key = 0;    
    protected $current;   
     public function __construct($file) {
        $this->file = fopen($file, 'r');
    }   
     public function __destruct() {
        fclose($this->file);
    }   
     public function rewind() {
        rewind($this->file);        $this->current = fgetcsv($this->file);        $this->key = 0;
    }   
     public function valid() {
        return !feof($this->file);
    }   
     public function key() {
        return $this->key;
    }    
    public function current() {
        return $this->current;
    }    
    public function next() {
        $this->current = fgetcsv($this->file);        $this->key++;
    }
}?>

<?php
class DependencyAndDataProviderComboTest extends PHPUnit_Framework_TestCase{
    public function provider()
    {
        return array(array('provider1'), array('provider2'));
    }   
     public function testProducerFirst()
    {
        $this->assertTrue(true);        return 'first';
    }   
     public function testProducerSecond()
    {
        $this->assertTrue(true);        return 'second';
    }   
     /**
     * @depends testProducerFirst
     * @depends testProducerSecond
     * @dataProvider provider
     */
    public function testConsumer()
    {
        $this->assertEquals(            array('provider1', 'first', 'second'),
            func_get_args()
        );
    }
}?>

phpunit --verbose DependencyAndDataProviderComboTestPHPUnit 4.2.0 by Sebastian Bergmann.
...F
Time: 0 seconds, Memory: 3.50Mb
There was 1 failure:
1) DependencyAndDataProviderComboTest::testConsumer with data set #1 ('provider2')
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
Array (
-    0 => 'provider1'
+    0 => 'provider2'
1 => 'first'
2 => 'second'
)
/home/sb/DependencyAndDataProviderComboTest.php:31
FAILURES!
Tests: 4, Assertions: 4, Failures: 1.