Setup dockunit for testing

Dockunit.json

@@ -0,0 +1,35 @@
+{
+    "containers": [{
+        "prettyName": "PHP-FPM 7.0",
+        "image": "dockunit/prebuilt-images:php-mysql-phpunit-wordpress-7.0-rc-1-fpm",
+        "beforeScripts": [
+            "service mysql start",
+            "wp core download --path=/temp/wp --allow-root",
+            "wp core config --path=/temp/wp --dbname=test --dbuser=root --allow-root",
+            "wp core install --url=http://localhost --title=Test --admin_user=admin --admin_password=12345 [email protected] --path=/temp/wp --allow-root",
+            "mkdir /temp/wp/wp-content/plugins/arabic-ligature",
+            "cp -r . /temp/wp/wp-content/plugins/arabic-ligature"
+        ],
+        "testCommand": "wp plugin activate arabic-ligature --allow-root --path=/temp/wp"
+    }, {
+        "prettyName": "PHP-FPM 5.6",
+        "image": "dockunit/prebuilt-images:php-mysql-phpunit-wordpress-5.6-fpm",
+        "beforeScripts": [
+            "service mysql start",
+            "wp core download --path=/temp/wp --allow-root",
+            "wp core config --path=/temp/wp --dbname=test --dbuser=root --allow-root",
+            "wp core install --url=http://localhost --title=Test --admin_user=admin --admin_password=12345 [email protected] --path=/temp/wp --allow-root",
+            "mkdir /temp/wp/wp-content/plugins/arabic-ligature",
+            "cp -r . /temp/wp/wp-content/plugins/arabic-ligature"
+        ],
+        "testCommand": "wp plugin activate arabic-ligature --allow-root --path=/temp/wp"
+    }, {
+        "prettyName": "PHP-FPM 5.2",
+        "image": "dockunit/prebuilt-images:php-mysql-phpunit-wordpress-5.2-fpm",
+        "beforeScripts": [
+            "service mysql start",
+            "wp-install latest"
+        ],
+        "testCommand": "wp-activate-plugin arabic-ligature.php"
+    }]
+}

README.md

@@ -20,4 +20,20 @@ Supported Short Codes:
 | [salaam]<br />[sallam] | &#1575;&#1604;&#1587;&#1604;&#1575;&#1605; &#1593;&#1604;&#1610;&#1603;&#1605; | &#1575;&#1604;&#1587;&#1604;&#1575;&#1605; &#1593;&#1604;&#1610;&#1603;&#1605; | As-salamu alaykum | Peace be upon you |
 | [wasalaam]<br />[wasallam]<br />[waalaykumu] | &#1608;&#1593;&#1604;&#1610;&#1603;&#1605; &#1575;&#1604;&#1587;&#1604;&#1575;&#1605; | &#1608;&#1593;&#1604;&#1610;&#1603;&#1605; &#1575;&#1604;&#1587;&#1604;&#1575;&#1605; | Wa ‘alaykum al-salaam | And unto you peace |
 | [allah] | &#65010; | &#65010; | Allāh | Allah (God) |
-| [swt]<br />[jallajalaluh]<br />[jallajalalouhou] | &#xFDFB; | &#1587;&#1576;&#1581;&#1575;&#1606;&#1607; &#1608; &#1578;&#1593;&#1575;&#1604;&#1609; | Jalla Jalāluhu | May He be Glorified and Exalted |
+| [swt]<br />[jallajalaluh]<br />[jallajalalouhou] | &#xFDFB; | &#1587;&#1576;&#1581;&#1575;&#1606;&#1607; &#1608; &#1578;&#1593;&#1575;&#1604;&#1609; | Jalla Jalāluhu | May He be Glorified and Exalted |
+
+
+# Development
+
+## Unit Testing
+
+install Dockunit:
+
+```
+npm install -g dockunit
+```
+
+Run tests
+```
+dockunit --du-verbose
+```

phpunit.xml

@@ -0,0 +1,13 @@
+<phpunit
+	bootstrap="tests/bootstrap.php"
+	backupGlobals="false"
+	colors="true"
+	convertErrorsToExceptions="true"
+	convertNoticesToExceptions="true"
+	convertWarningsToExceptions="true">
+	<testsuites>
+		<testsuite>
+			<directory prefix="test-" suffix=".php">./tests/</directory>
+		</testsuite>
+	</testsuites>
+</phpunit>

tests/bootstrap.php

@@ -0,0 +1,9 @@
+<?php
+$_tests_dir = getenv('WP_TESTS_DIR');
+if ( !$_tests_dir ) $_tests_dir = '/temp/wp/wordpress-tests-lib';
+require_once $_tests_dir . '/includes/functions.php';
+function _manually_load_plugin() {
+	require dirname( __FILE__ ) . '/../arabic-ligature.php';
+}
+tests_add_filter( 'muplugins_loaded', '_manually_load_plugin' );
+require $_tests_dir . '/includes/bootstrap.php';