Initial Commit

php/hamming/hamming_test.php

@@ -0,0 +1,55 @@
+<?php
+
+require "hamming.php";
+
+class HammingComparatorTest extends PHPUnit_Framework_TestCase
+{
+
+    public function testNoDifferenceBetweenIdenticalStrands()
+    {
+        $this->assertEquals(0, distance('A', 'A'));
+    }
+
+    public function testCompleteHammingDistanceOfForSingleNucleotideStrand()
+    {
+        $this->markTestSkipped();
+        $this->assertEquals(1, distance('A', 'G'));
+    }
+
+    public function testCompleteHammingDistanceForSmallStrand()
+    {
+        $this->markTestSkipped();
+        $this->assertEquals(2, distance('AG', 'CT'));
+    }
+
+    public function testSmallHammingDistance()
+    {
+        $this->markTestSkipped();
+        $this->assertEquals(1, distance('AT', 'CT'));
+    }
+
+    public function testSmallHammingDistanceInLongerStrand()
+    {
+        $this->markTestSkipped();
+        $this->assertEquals(1, distance('GGACG', 'GGTCG'));
+    }
+
+    public function testLargeHammingDistance()
+    {
+        $this->markTestSkipped();
+        $this->assertEquals(4, distance('GATACA', 'GCATAA'));
+    }
+
+    public function testHammingDistanceInVeryLongStrand()
+    {
+        $this->markTestSkipped();
+        $this->assertEquals(9, distance('GGACGGATTCTG', 'AGGACGGATTCT'));
+    }
+
+    public function testExceptionThrownWhenStrandsAreDifferentLength()
+    {
+        $this->markTestSkipped();
+        $this->setExpectedException('InvalidArgumentException', 'DNA strands must be of equal length.');
+        distance('GGACG', 'AGGACGTGG');
+    }
+}