diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..e9972b4
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+test:
+	phpunit --bootstrap tests/bootstrap.php tests
diff --git a/tests/ActionDateCTest.php b/tests/ActionDateCTest.php
new file mode 100644
index 0000000..57e6b5f
--- /dev/null
+++ b/tests/ActionDateCTest.php
@@ -0,0 +1,14 @@
+<?php
+
+class ActionDateCTest extends PHPUnit_Framework_TestCase {
+    function testDecode() {
+        $action = new ActionDateC("1374772515");
+        $expected = [1374772515 => '2013-07-25T17:15:15+00:00'];
+        $this->assertEquals($expected, $action->decode());
+    }
+
+    function testDecodeHasCorrectNumberOfResults() {
+        $action = new ActionDateC("1374772515\n1374772516");
+        $this->assertCount(2, $action->decode());
+    }
+}
diff --git a/tests/ActionQuotedPrintableDecodeTest.php b/tests/ActionQuotedPrintableDecodeTest.php
new file mode 100644
index 0000000..2c11c49
--- /dev/null
+++ b/tests/ActionQuotedPrintableDecodeTest.php
@@ -0,0 +1,8 @@
+<?php
+
+class ActionQuotedPrintableDecodeTest extends PHPUnit_Framework_TestCase {
+    function testDecode() {
+        $action = new ActionQuotedPrintableDecode('a=3Db');
+        $this->assertEquals('a=b', $action->decode());
+    }
+}
diff --git a/tests/ActionQuotedPrintableEncodeTest.php b/tests/ActionQuotedPrintableEncodeTest.php
new file mode 100644
index 0000000..3424487
--- /dev/null
+++ b/tests/ActionQuotedPrintableEncodeTest.php
@@ -0,0 +1,8 @@
+<?php
+
+class ActionQuotedPrintableEncodeTest extends PHPUnit_Framework_TestCase {
+    function testDecode() {
+        $action = new ActionQuotedPrintableEncode('a=b');
+        $this->assertEquals('a=3Db', $action->decode());
+    }
+}
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
new file mode 100644
index 0000000..f5fcfb3
--- /dev/null
+++ b/tests/bootstrap.php
@@ -0,0 +1,7 @@
+<?php
+
+date_default_timezone_set('UTC');
+
+require_once 'dBug.php';
+require_once 'classes.php';
+require_once 'functions.php';