Add docker-compose.yml to make it possible to test any php versions

Signed-off-by: Hidehito Nozawa <[email protected]>

Author: suin

README.md

@@ -129,7 +129,13 @@ If you want to know APIs, please see [`FeedInterface`](src/Suin/RSSWriter/FeedIn
 ## How to Test
 
 ```sh
-$ ./phpunit
+$ vendor/bin/phpunit
+```
+
+## Test through PHP 5.4 ~ PHP 7.0
+
+```console
+$ docker-compose up
 ```
 
 ## License

docker-compose.yml

@@ -0,0 +1,25 @@
+version: "2"
+services:
+  php70:
+    image: php:7.0-alpine
+    command: vendor/bin/phpunit
+    volumes: [".:/app"]
+    working_dir: /app
+
+  php56:
+    image: php:5.6-alpine
+    command: vendor/bin/phpunit
+    volumes: [".:/app"]
+    working_dir: /app
+
+  php55:
+    image: php:5.5-alpine
+    command: vendor/bin/phpunit
+    volumes: [".:/app"]
+    working_dir: /app
+
+  php54:
+    image: php:5.4-cli
+    command: vendor/bin/phpunit
+    volumes: [".:/app"]
+    working_dir: /app

tests/Bootstrap.php

@@ -8,3 +8,5 @@
   @include_once strtr($c, '\\_', '//') . '.php';
 });
 set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__DIR__) . '/src');
+
+date_default_timezone_set('UTC');