eth_getFilterChanges

src/Eth.php

@@ -283,6 +283,13 @@ class Eth
                 ]
             ]
         ],
+        'eth_getFilterChanges' => [
+            'params' => [
+                [
+                    'validators' => QuantityValidator::class
+                ]
+            ]
+        ],
     ];
 
     /**

test/unit/EthTest.php

@@ -943,6 +943,32 @@ class EthTest extends TestCase
         });
     }
 
+    /**
+     * testGetFilterChanges
+     * 
+     * @return void
+     */    
+    public function testGetFilterChanges()
+    {
+        $eth = $this->eth;
+
+        $eth->getFilterChanges('0x01', function ($err, $filter) {
+            if ($err !== null) {
+                // infura banned us to get filter changes
+                return $this->assertTrue($err->getCode() === 405);
+            }
+            if (isset($filter->result)) {
+                $this->assertTrue(is_string($filter->result));
+            } else {
+                if (isset($filter->error)) {
+                    $this->assertTrue(is_string($filter->error->message));
+                } else {
+                    $this->assertTrue(true);
+                }
+            }
+        });
+    }
+
     /**
      * testUnallowedMethod
      *