Added unit tests to test multiple chunks when parsing.

Author: Rob Caiger

tests/ParserTest.php

@@ -0,0 +1,95 @@
+<?php
+/**
+ * Diff
+ *
+ * Copyright (c) 2001-2014, Sebastian Bergmann <[email protected]>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *
+ *   * Neither the name of Sebastian Bergmann nor the names of his
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package    Diff
+ * @author     Rob Caiger <[email protected]>
+ * @copyright  2001-2014 Sebastian Bergmann <[email protected]>
+ * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
+ * @link       http://www.github.com/sebastianbergmann/diff
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit_Framework_TestCase;
+
+class ParserTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @var Parser
+     */
+    private $parser;
+
+    protected function setUp()
+    {
+        $this->parser = new Parser;
+    }
+
+    public function testParse()
+    {
+        $content = file_get_contents(__DIR__ . '/fixtures/patch.txt');
+
+        $diffs = $this->parser->parse($content);
+
+        $this->assertCount(1, $diffs);
+
+        $chunks = $diffs[0]->getChunks();
+        $this->assertCount(1, $chunks);
+
+        $this->assertEquals(20, $chunks[0]->getStart());
+
+        $this->assertCount(5, $chunks[0]->getLines());
+    }
+
+    public function testParseWithMultipleChunks()
+    {
+        $content = file_get_contents(__DIR__ . '/fixtures/patch2.txt');
+
+        $diffs = $this->parser->parse($content);
+
+        $this->assertCount(1, $diffs);
+
+        $chunks = $diffs[0]->getChunks();
+        $this->assertCount(3, $chunks);
+
+        $this->assertEquals(20, $chunks[0]->getStart());
+        $this->assertEquals(320, $chunks[1]->getStart());
+        $this->assertEquals(600, $chunks[2]->getStart());
+
+        $this->assertCount(5, $chunks[0]->getLines());
+        $this->assertCount(5, $chunks[1]->getLines());
+        $this->assertCount(5, $chunks[2]->getLines());
+    }
+}

tests/fixtures/patch.txt

@@ -0,0 +1,9 @@
+diff --git a/Foo.php b/Foo.php
+index abcdefg..abcdefh 100644
+--- a/Foo.php
++++ b/Foo.php
+@@ -20,4 +20,5 @@ class Foo
+     const ONE = 1;
+     const TWO = 2;
++    const THREE = 3;
+     const FOUR = 4;

tests/fixtures/patch2.txt

@@ -0,0 +1,21 @@
+diff --git a/Foo.php b/Foo.php
+index abcdefg..abcdefh 100644
+--- a/Foo.php
++++ b/Foo.php
+@@ -20,4 +20,5 @@ class Foo
+     const ONE = 1;
+     const TWO = 2;
++    const THREE = 3;
+     const FOUR = 4;
+
+@@ -320,4 +320,5 @@ class Foo
+     const A = 'A';
+     const B = 'B';
++    const C = 'C';
+     const D = 'D';
+
+@@ -600,4 +600,5 @@ class Foo
+     public function doSomething() {
+
++        return 'foo';
+     }