Added initial simple test

Author: sergeyklay

unit-tests/Data/.gitkeep

@@ -0,0 +1,8 @@
+namespace Example;
+
+class Test
+{
+	public foo;
+	protected bar;
+	private baz;
+}

unit-tests/Data/simple/example.zep

@@ -0,0 +1,63 @@
+<?php
+
+namespace Zephir\Parser\Tests;
+
+class ParserSimpleTest extends TestCase
+{
+    /** @test */
+    public function shouldProperlyParseTheFile()
+    {
+        $path = $this->dataPath('simple/example.zep');
+        $expected = [
+            [
+                'type' => 'namespace',
+                'name' => 'Example',
+                'file' => $path,
+                'line' => 3,
+                'char' => 5,
+            ],
+            [
+                'type'     => 'class',
+                'name'     => 'Test',
+                'abstract' => 0,
+                'final'    => 0,
+                'definition' => [
+                    'properties' => [
+                        [
+                            'visibility' => ['public'],
+                            'type' => 'property',
+                            'name' => 'foo',
+                            'file' => $path,
+                            'line' => 6,
+                            'char' => 10,
+                        ],
+                        [
+                            'visibility' => ['protected'],
+                            'type' => 'property',
+                            'name' => 'bar',
+                            'file' => $path,
+                            'line' => 7,
+                            'char' => 8,
+                        ],
+                        [
+                            'visibility' => ['private'],
+                            'type' => 'property',
+                            'name' => 'baz',
+                            'file' => $path,
+                            'line' => 8,
+                            'char' => 1,
+                        ],
+                  ],
+                  'file' => $path,
+                  'line' => 3,
+                  'char' => 5,
+                ],
+                'file' => $path,
+                'line' => 3,
+                'char' => 5,
+            ],
+        ];
+
+        $this->assertSame($expected, $this->parseFile('simple/example.zep'));
+    }
+}