Change multiply, divide method names

Author: chrisullyott

README.md

@@ -46,15 +46,15 @@ echo $size->asAuto(); // '1.15 TB'
 
 ### Modify the size
 
-To make changes, use `add()`, `subtract()`, `multiply()`, and `divide()`. A variety of file size strings are supported here as well.
+To make changes, use `add()`, `subtract()`, `multiplyBy()`, and `divideBy()`. A variety of file size strings are supported here as well.
 
 ```php
 $size = new FileSize('4 GB');
 
 $size->add('2G')
      ->subtract('1 gigabytes')
-     ->multiply(4)
-     ->divide(2);
+     ->multiplyBy(4)
+     ->divideBy(2);
 
 echo $size->asAuto(); // '10.00 GB'
 ```

src/FileSize.php

@@ -93,7 +93,7 @@ public function subtract($size)
      * @param int|float $n A number
      * @return self
      */
-    public function multiply($n)
+    public function multiplyBy($n)
     {
         $this->bytes = self::formatBytes($this->bytes * $n);
 
@@ -106,9 +106,9 @@ public function multiply($n)
      * @param  int|float $n A number
      * @return self
      */
-    public function divide($n)
+    public function divideBy($n)
     {
-        return $this->multiply(1 / $n);
+        return $this->multiplyBy(1 / $n);
     }
 
     /**

tests/FileSizeTest.php

@@ -40,18 +40,18 @@ public function testSubtract()
         $this->assertSame($size->as('B'), 128821248);
     }
 
-    public function testMultiply()
+    public function testMultiplyBy()
     {
         $size = new FileSize('425.51 m');
-        $size->multiply(9.125);
+        $size->multiplyBy(9.125);
 
         $this->assertSame($size->as('GB'), 3.79);
     }
 
-    public function testDivide()
+    public function testDivideBy()
     {
         $size = new FileSize('300K');
-        $size->divide(2);
+        $size->divideBy(2);
 
         $this->assertSame($size->as('KB'), (float) 150);
     }
@@ -87,7 +87,7 @@ public function testAuto1()
     public function testAuto2()
     {
         $size = new FileSize('1.2345 KB');
-        $size->multiply(0.333);
+        $size->multiplyBy(0.333);
 
         $this->assertSame($size->asAuto(2), '422 B');
     }