Merge pull request #12 from MaxGoryunov/feature/5

Feature/5

Author: MaxGoryunov

.github/workflows/php.yml

@@ -17,5 +17,8 @@ jobs:
     - name: Install Composer
       run: composer install
 
+    - name: Include files for autoloading
+      run: composer dump-autoload
+
     - name: Run PHPUnit tests
       run: ./vendor/bin/phpunit tests

composer.json

@@ -6,5 +6,10 @@
         "vimeo/psalm": "^4.8",
         "phpmd/phpmd": "^2.10",
         "friendsofphp/php-cs-fixer": "^3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "MaxGoryunov\\SavingIterator\\": ""
+        }
     }
 }

tests/src/SavingIteratorTest.php

@@ -3,6 +3,7 @@
 namespace MaxGoryunov\SavingIterator\Tests\Src;
 
 use ArrayIterator;
+use Generator;
 use MaxGoryunov\SavingIterator\Fakes\TimesCalled;
 use MaxGoryunov\SavingIterator\Fakes\TransparentIterator;
 use MaxGoryunov\SavingIterator\Src\SavingIterator;
@@ -71,6 +72,66 @@ public function testDoesNotCallOriginIfValuesAreInCache(): void
         $this->assertEquals(count($input), $called->value());
     }
 
+    /**
+     * @covers ::__construct
+     * @covers ::rewind
+     * @covers ::valid
+     * @covers ::current
+     * @covers ::key
+     * @covers ::next
+     * 
+     * @small
+     *
+     * @return void
+     */
+    public function testWorksWithGenerator(): void
+    {
+        $limit = 6;
+        $this->assertEquals(
+            range(0, $limit), 
+            iterator_to_array(
+                new SavingIterator(
+                    (
+                        function () use ($limit): Generator
+                        {
+                            for ($i = 0; $i <= $limit; $i++) {
+                                yield $i;
+                            }
+                        }
+                    )()
+                )
+            )
+        );
+    }
+
+    /**
+     * @covers ::__construct
+     * @covers ::rewind
+     * @covers ::valid
+     * @covers ::current
+     * @covers ::key
+     * @covers ::next
+     * 
+     * @small
+     *
+     * @return void
+     */
+    public function testWorksWithGeneratorMultipleTimes(): void
+    {
+        $iterator = new SavingIterator(
+            (function (): Generator
+            {
+                for ($i = 0; $i < 10; $i++) {
+                    yield $i;
+                }
+            })()
+        );
+        $this->assertEquals(
+            iterator_to_array($iterator),
+            iterator_to_array($iterator)
+        );
+    }
+
     /**
      * @covers ::__construct
      * @covers ::rewind