Add the first unit test

Add phpunit configuration to run tests and add the first running test to validate the configuration

tests/app/Models/CategoryTest.php

@@ -0,0 +1,32 @@
+<?php
+
+class FreshRSS_CategoryTest extends \PHPUnit_Framework_TestCase {
+
+	public function test__construct_whenNoParameters_createsObjectWithDefaultValues() {
+		$category = new FreshRSS_Category();
+		$this->assertEquals(0, $category->id());
+		$this->assertEquals('', $category->name());
+	}
+
+	/**
+	 * @param string $input
+	 * @param string $expected
+	 * @dataProvider provideValidNames
+	 */
+	public function test_name_whenValidValue_storesModifiedValue($input, $expected) {
+		$category = new FreshRSS_Category($input);
+		$this->assertEquals($expected, $category->name());
+	}
+
+	public function provideValidNames() {
+		return array(
+		    array('', ''),
+		    array('this string does not need trimming', 'this string does not need trimming'),
+		    array('  this string needs trimming on left', 'this string needs trimming on left'),
+		    array('this string needs trimming on right  ', 'this string needs trimming on right'),
+		    array('  this string needs trimming on both ends  ', 'this string needs trimming on both ends'),
+		    array(str_repeat('This string needs to be shortened because its length is way too long. ', 4), str_repeat('This string needs to be shortened because its length is way too long. ', 3) . 'This string needs to be shortened because its'),
+		);
+	}
+
+}

tests/bootstrap.php

@@ -0,0 +1,7 @@
+<?php
+
+error_reporting(E_ALL);
+ini_set('display_errors', 1);
+
+require('../constants.php');
+require(LIB_PATH . '/lib_rss.php');	//Includes class autoloader

tests/phpunit.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="bootstrap.php">
+	<filter>
+		<whitelist>
+			<directory suffix=".php">../app</directory>
+		</whitelist>
+	</filter>
+	<testsuites>
+		<testsuite name="FreshRSS">
+			<directory>app</directory>
+		</testsuite>
+	</testsuites>
+</phpunit>