Add: More tests

Author: JBlond

tests/DiffTest.php

@@ -0,0 +1,152 @@
+<?php
+
+namespace Tests;
+
+use InvalidArgumentException;
+use jblond\Diff;
+use jblond\Diff\Renderer\Html\SideBySide;
+use OutOfRangeException;
+use PHPUnit\Framework\TestCase;
+
+/**
+ *
+ */
+class DiffTest extends TestCase
+{
+    /**
+     * @var Diff
+     */
+    protected $diff;
+
+    /**
+     * @param string|null $name
+     * @param array $data
+     * @param $dataName
+     */
+    public function __construct(?string $name = null, array $data = [], $dataName = '')
+    {
+        parent::__construct($name, $data, $dataName);
+        $this->diff = new Diff(
+            file_get_contents('tests/resources/a.txt'),
+            file_get_contents('tests/resources/b.txt')
+        );
+    }
+
+    /**
+     * @return void
+     */
+    public function testGetGroupedOpCodes()
+    {
+        $this->assertEquals(
+            [
+                [
+                    ['equal', 0, 3, 0, 3],
+                    ['replace', 3, 4, 3, 4],
+                    ['equal', 4, 7, 4, 7],
+                    ['delete', 7, 8, 7, 7],
+                    ['equal', 8, 9, 7, 8],
+                    ['replace', 9, 10, 8, 9],
+                    ['equal', 10, 11, 9, 10],
+                    ['replace', 11, 12, 10, 11],
+                    ['equal', 12,13, 11, 12],
+                    ['insert', 13, 13, 12, 13],
+                    ['equal', 13, 16, 13, 16],
+                    ['replace', 16, 19, 16, 19],
+                    ['equal', 19, 22, 19, 22],
+                ],
+                [
+                    ['outOfContext', 22, 24, 22, 24],
+                ],
+                [
+                    ['equal', 24, 27, 24, 27],
+                    ['replace', 27, 28, 27, 28],
+                    ['equal', 28, 29, 28, 29],
+                    ['replace', 29, 30, 29, 30],
+                    ['equal', 30, 33, 30, 33],
+                ]
+            ],
+            $this->diff->getGroupedOpCodes()
+        );
+    }
+
+    public function testGetVersion1()
+    {
+        $this->assertEquals(
+            file('tests/resources/a.txt'),
+            $this->diff->getVersion1()
+        );
+    }
+
+    public function testGetVersion2()
+    {
+        $this->assertEquals(
+            file('tests/resources/b.txt'),
+            $this->diff->getVersion2()
+        );
+    }
+
+    public function testGetArgumentType()
+    {
+        $this->assertEquals(
+            [
+                0,
+                1
+            ],
+            [
+                $this->diff->getArgumentType([]),
+                $this->diff->getArgumentType('ABC')
+            ]
+        );
+        $this->expectException(InvalidArgumentException::class);
+        $this->diff->getArgumentType(123);
+    }
+
+    public function testRender()
+    {
+        $renderer = new SideBySide();
+        $this->assertEquals(
+            file_get_contents('tests/resources/htmlSideBySide.txt'),
+            $this->diff->render($renderer)
+        );
+    }
+
+    public function testGetSimilarity()
+    {
+        $this->assertEquals(
+            0.7272727272727273,
+            $this->diff->getSimilarity()
+        );
+    }
+
+    public function testIsIdentical()
+    {
+        $this->assertEquals(
+            false,
+            $this->diff->isIdentical()
+        );
+    }
+
+    public function testGetStatistics()
+    {
+        $this->assertEquals(
+            [
+                'inserted' => 1,
+                'deleted' => 1,
+                'replaced' => 8,
+                'equal' => 24
+            ],
+            $this->diff->getStatistics()
+        );
+    }
+
+    public function testGetArrayRange()
+    {
+        $this->assertEquals(
+            [5,6],
+            $this->diff->getArrayRange([2,5,6],1, 3)
+        );
+
+        $this->expectException(OutOfRangeException::class);
+        $this->diff->getArrayRange([1,5],5);
+    }
+}