Fix and improve polygon with assoc point array

Author: jsor

src/Polygon.php

@@ -37,7 +37,7 @@ public function close()
         $points = $this->points;
 
         if (!$this->isClosed()) {
-            $points[] = clone $this->points[0];
+            $points[] = clone reset($this->points);
         }
 
         return new self($points);
@@ -59,7 +59,7 @@ public function contains(LatLng $latLng)
         $x = $latLng->getLongitude();
         $y = $latLng->getLatitude();
 
-        $p = $points[count($points) - 1];
+        $p = end($points);
 
         $x0 = $p->getLongitude();
         $y0 = $p->getLatitude();

tests/PolygonTest.php

@@ -10,15 +10,15 @@ public function testConstructorShouldAcceptArrayOfLatLngs()
             new LatLng(0, 0),
             array('latitude' => 0, 'longitude' => 1),
             '1, 1',
-            array(1, 0)
+            'key' => array(1, 0)
         );
 
         $polygon = new Polygon($points);
 
         $this->assertEquals($points[0], $polygon[0]);
         $this->assertEquals(0, $polygon[1]->getLatitude());
         $this->assertEquals(1, $polygon[2]->getLatitude());
-        $this->assertEquals(1, $polygon[3]->getLatitude());
+        $this->assertEquals(1, $polygon['key']->getLatitude());
     }
 
     public function testConstructorThrowsExceptionForInvalidLatLng()
@@ -224,6 +224,17 @@ public function containsDataProvider()
                 array('lng' => 0.5, 'lat' => 0.5),
                 false
             ),
+
+            // Assoc polygon
+            array(
+                array(
+                    'polygon1' => array('lng' => 1, 'lat' => 1),
+                    'polygon2' => array('lng' => 3, 'lat' => 2),
+                    'polygon3' => array('lng' => 2, 'lat' => 3)
+                ),
+                array('lng' => 1.5, 'lat' => 1.5),
+                true
+            ),
         );
     }
 
@@ -255,7 +266,7 @@ public function testToBoundsThrowsExceptionForEmptyPolygon()
         $polygon->toBounds();
     }
 
-    public function testArrayAccess()
+    public function testArrayAccessNumeric()
     {
         $points = array(
             new LatLng(0, 0)
@@ -268,6 +279,19 @@ public function testArrayAccess()
         $this->assertEquals($points[0], $polygon[0]);
     }
 
+    public function testArrayAccessAssoc()
+    {
+        $points = array(
+            'key' => new LatLng(0, 0)
+        );
+
+        $polygon = new Polygon($points);
+
+        $this->assertTrue(isset($polygon['key']));
+        $this->assertNotNull($polygon['key']);
+        $this->assertEquals($points['key'], $polygon['key']);
+    }
+
     public function testOffsetGetThrowsExceptionForInvalidKey()
     {
         $this->setExpectedException('\InvalidArgumentException', 'Invalid offset 0.');