Added support for Docker in order to fix php version

php/Dockerfile

@@ -0,0 +1,20 @@
+FROM php:7-cli-alpine
+LABEL authors="Mauro Chojrin"
+
+RUN apk update && apk upgrade
+
+RUN mkdir "/app/"
+
+COPY . /app
+RUN wget https://raw.githubusercontent.com/composer/getcomposer.org/76a7060ccb93902cd7576b67264ad91c8a2700e2/web/installer -O - -q | php -- --quiet && \
+    mv composer.phar /usr/local/bin/composer
+
+RUN apk add --no-cache --virtual .build-dependencies $PHPIZE_DEPS \
+    && pecl install xdebug-3.1.0 \
+    && docker-php-ext-enable xdebug \
+    && pecl clear-cache \
+    && apk del .build-dependencies
+
+RUN echo "xdebug.mode = coverage" >> /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini
+
+WORKDIR /app

php/README.md

@@ -18,3 +18,19 @@ When running the tests a coverage report should be generated automatically in si
 to visualize it from the browser you can open the `coverage/report/index.html` file in a browser after running the tests.
 
 Enjoy
+
+# Note
+
+This application is designed to work with PHP ~7.0. If you don't have this installed locally, a Dockerfile is provided. Assuming you have [Docker](https://docs.docker.com/get-docker/) installed, use the following instructions to get things going:
+
+```shell
+docker build . -t php-trip-service
+docker run -it -v $(pwd):/app php-trip-service:latest php composer.phar install
+```
+
+And to execute the tests:
+
+```shell
+docker run -it -v $(pwd):/app php-trip-service:latest php bin/phpunit
+```
+

php/phpunit.xml

@@ -14,7 +14,7 @@
 
     <testsuites>
         <testsuite name="TripService Kata Test Suite">
-            <directory>test/</directory>
+            <directory suffix="Should.php">test/</directory>
         </testsuite>
     </testsuites>
 

php/test/Test/TripServiceKata/Trip/TripServiceTest.php → php/test/Test/TripServiceKata/Trip/TripServiceShould.php

@@ -5,20 +5,20 @@
 use PHPUnit\Framework\TestCase;
 use TripServiceKata\Trip\TripService;
 
-class TripServiceTest extends TestCase
+class TripServiceShould extends TestCase
 {
     /**
      * @var TripService
      */
-    private $tripService;
+    private TripService $tripService;
 
-    protected function setUp()
+    protected function setUp(): void
     {
-        $this->tripService = new TripService;
+        $this->tripService = new TripService();
     }
 
     /** @test */
-    public function it_does_something()
+    public function do_something()
     {
         $this->fail('This test has not been implemented yet.');
     }