added simple math and charts modules

vendor/andileco/eval-math/tests/UserVariablesTest.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * @author Serge Rodovnichenko <serge@syrnik.com>
+ * @copyright Serge Rodovnichenko, 2019
+ * @license BSD 2.0
+ */
+
+namespace Andileco\Util\EvalMath\Tests;
+
+
+use PHPUnit\Framework\TestCase;
+use Andileco\Util\EvalMath\EvalMath;
+
+class UserVariablesTest extends TestCase
+{
+    public function testVariablesDump()
+    {
+        $e = new EvalMath();
+        $this->assertEmpty($e->vars());
+
+        $e->evaluate('a=1');
+        $this->assertArrayHasKey('a',$e->vars());
+        $this->assertEquals('1', $e->vars()['a']);
+    }
+}