first version

Author: marabesi

bin/phpunit-4.8.26.phar

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+{
+    "name": "marabesi/arduino-php-wrapper",
+    "authors": [
+        {
+            "name": "Marabesi",
+            "email": "matheus.marabesi@gmail.com"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "Arduino\\": "src/"
+        }
+    },
+    "require": {},
+    "autoload-dev": {
+        "classmap": [
+            "test/ArduinoTestCase.php"
+        ]
+    },
+    "require-dev": {
+        "phpunit/phpunit": "~4.8",
+        "mikey179/vfsStream": "~1"
+    }
+}

composer.json

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+<phpunit bootstrap="vendor/autoload.php">
+    <testsuites>
+        <testsuite name="Arduino wrapper">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

phpunit.xml

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+<?php
+
+namespace Arduino;
+
+
+class Reader
+{
+
+}

src/Reader.php

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+<?php
+
+namespace Arduino;
+
+class Wrapper
+{
+
+    private static $wrapperName = 'arduino';
+    private $path;
+
+    public function __construct()
+    {
+        self::register();
+    }
+
+    public function stream_open($path, $mode, $options = null, &$opened_path = null)
+    {
+        $realPath = str_replace('arduino://', '', $path);
+
+        if (!file_exists($realPath)) {
+            throw new \InvalidArgumentException('Could not find Arduino connection in ' . $realPath);
+        }
+
+        $this->path = fopen($realPath, 'r+');
+
+        return true;
+    }
+
+    public function stream_read($count)
+    {
+        return fread($this->path, $count);
+    }
+
+    public function stream_write($data)
+    {
+        return fwrite($this->path, $data);
+    }
+
+    public function stream_eof()
+    {
+        return fclose($this->path);
+    }
+
+    public static function register()
+    {
+        // if we already defined the wrapper just return false
+        foreach (stream_get_wrappers() as $wrapper) {
+            if ($wrapper == self::$wrapperName) {
+                return false;
+            }
+        }
+
+        stream_wrapper_register(self::$wrapperName, self::class);
+    }
+}

src/Wrapper.php

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+<?php
+
+namespace Arduino;
+
+class Writer
+{
+    private $wrappers;
+
+    public function __construct(Wrapper $wrapper)
+    {
+        $this->wrappers = $wrapper;
+    }
+
+    public function out($to, $data)
+    {
+        $this->wrappers->stream_open($to, 'r+');
+        $bytes = $this->wrappers->stream_write($data);
+
+        return ($bytes != 0);
+    }
+}

src/Writer.php

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+<?php
+
+class ArduinoTest extends \ArduinoTestCase
+{
+
+    public function testShouldDefineArduinoWrapperToBeUsed()
+    {
+        $arduino = new \Arduino\Wrapper();
+
+        $has = false;
+        foreach (stream_get_wrappers() as $wrapper) {
+            if ($wrapper == 'arduino') {
+                $has = true;
+                break;
+            }
+        }
+
+        $this->assertTrue($has);
+    }
+
+    public function testShoudlSendDataToArduino()
+    {
+        $resource = fopen('arduino://' . $this->fakeUsbPath, 'r+');
+        fwrite($resource, 'data to arduino');
+
+        $this->assertTrue(is_resource($resource));
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testShouldHandlerErrorWhenTheUsbIsNotAvailable()
+    {
+        fopen('arduino:///foo/bar/tty_fake_usb', 'r+');
+    }
+}

test/ArduinoTest.php

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+<?php
+
+class ArduinoTestCase extends PHPUnit_Framework_TestCase
+{
+
+    protected $fakeArduinoUsbResource;
+    protected $fakeUsbPath = 'ttyUSB0_fake';
+
+    public function setUp()
+    {
+        $this->fakeArduinoUsbResource = fopen($this->fakeUsbPath, 'w');
+    }
+
+    public function tearDown()
+    {
+        fclose($this->fakeArduinoUsbResource);
+        unlink($this->fakeUsbPath);
+    }
+}

test/ArduinoTestCase.php

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+<?php
+
+class WriterTest extends \ArduinoTestCase
+{
+
+    public function testShouldWriteToArduinoUsingOOPStyle()
+    {
+        $writer = new Arduino\Writer(new Arduino\Wrapper());
+        $bytes = $writer->out($this->fakeUsbPath, 'from oop');
+
+        $this->assertNotEmpty($bytes);
+    }
+}