From f8ae307cb81e4602850bb4b5140f9ee60059e94c Mon Sep 17 00:00:00 2001
From: mouson <mouson@gmail.com>
Date: Tue, 10 Jan 2017 03:51:56 +0800
Subject: [PATCH] =?UTF-8?q?Issue=20#1=20=E5=BB=BA=E7=AB=8B=20Double=20?=
 =?UTF-8?q?=E5=BA=8F=E5=88=97=E5=88=9D=E5=A7=8B=E7=89=88=E6=9C=AC?=
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---
 .../DoubleSequenceCalculator.php              | 28 +++++++++++++++
 .../DoubleSequenceCalculatorTest.php          | 35 +++++++++++++++++++
 2 files changed, 63 insertions(+)
 create mode 100644 src/Helpers/SequenceCalculator/DoubleSequenceCalculator.php
 create mode 100644 tests/Mouson/Helpers/SequenceCalculator/DoubleSequenceCalculatorTest.php

diff --git a/src/Helpers/SequenceCalculator/DoubleSequenceCalculator.php b/src/Helpers/SequenceCalculator/DoubleSequenceCalculator.php
new file mode 100644
index 0000000..e2fe20b
--- /dev/null
+++ b/src/Helpers/SequenceCalculator/DoubleSequenceCalculator.php
@@ -0,0 +1,28 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: mouson
+ * Date: 2017/1/10
+ * Time: 03:44
+ */
+
+namespace Mouson\Helpers\SequenceCalculator;
+
+class DoubleSequenceCalculator implements CalculatorInterface
+{
+
+    /**
+     * @param $value
+     *
+     * @return int|mixed
+     */
+    public function calculate($value)
+    {
+        return ($value * 2);
+    }
+
+    public function getSequenceName()
+    {
+        return 'Double';
+    }
+}
\ No newline at end of file
diff --git a/tests/Mouson/Helpers/SequenceCalculator/DoubleSequenceCalculatorTest.php b/tests/Mouson/Helpers/SequenceCalculator/DoubleSequenceCalculatorTest.php
new file mode 100644
index 0000000..2bdd15e
--- /dev/null
+++ b/tests/Mouson/Helpers/SequenceCalculator/DoubleSequenceCalculatorTest.php
@@ -0,0 +1,35 @@
+<?php
+namespace Mouson\Helpers\SequenceCalculator;
+
+class DoubleSequenceCalculatorTest extends \PHPUnit_Framework_TestCase
+{
+    public function test_物件產生後應可以取得物件名稱()
+    {
+        /** Arrange */
+        $target = new DoubleSequenceCalculator();
+
+        /** Assume */
+        $expected = 'Double';
+
+        /** Act */
+        $actual = $target->getSequenceName();
+
+        /** Assert */
+        $this->assertEquals($expected, $actual);
+    }
+
+    public function test_測試雙倍數列輸入0應回傳0()
+    {
+        /** Arrange */
+        $target = new DoubleSequenceCalculator();
+        $value  = 0;
+        /** Assume */
+        $expected = 0;
+
+        /** Act */
+        $actual = $target->calculate($value);
+
+        /** Assert */
+        $this->assertEquals($expected, $actual);
+    }
+}