Add magnitude test.

mcordingley · mcordingley · commit f2d90d0e0887 · 2017-08-23T14:55:16.000-04:00
diff --git a/tests/VectorTest.php b/tests/VectorTest.php
@@ -90,6 +90,13 @@ public function testLength()
         $this->assertEquals(5, $vector->length());
     }
 
+    public function testMagnitude()
+    {
+        $vector = new Vector([3, 4]);
+
+        $this->assertEquals(5, $vector->magnitude());
+    }
+
     public function testDotProduct()
     {
         $vector1 = new Vector([1, 2, 3, 4]);

Original file line number	Diff line number	Diff line change
`@@ -90,6 +90,13 @@ public function testLength()`
`90`	`90`	`$this->assertEquals(5, $vector->length());`
`91`	`91`	`}`
`92`	`92`
	`93`	`+ public function testMagnitude()`
	`94`	`+ {`
	`95`	`+ $vector = new Vector([3, 4]);`
	`96`	`+`
	`97`	`+ $this->assertEquals(5, $vector->magnitude());`
	`98`	`+ }`
	`99`	`+`
`93`	`100`	`public function testDotProduct()`
`94`	`101`	`{`
`95`	`102`	`$vector1 = new Vector([1, 2, 3, 4]);`