Add fa_IR localization for currency provider (#1971)

* Add ``fa_IR`` localization for ``currency`` provider

* Add tests for ``fa_IR`` ``currency`` provider

faker/providers/currency/fa_IR/__init__.py

@@ -0,0 +1,8 @@
+from .. import Provider as CurrencyProvider
+
+
+class Provider(CurrencyProvider):
+    price_formats = ["###,###,000","#,###,000,000", "%,###,###,###,###", "%,###,###,###,000,000"]
+
+    def pricetag(self) -> str:
+        return self.numerify(self.random_element(self.price_formats)) + "\uFDFC"

tests/providers/test_currency.py

@@ -247,6 +247,23 @@ def test_pricetag(self, faker, num_samples):
             assert isinstance(pricetag, str)
 
 
+class TestFaIr:
+    """Test fa_IR currency provider"""
+
+    num_samples = 100
+
+    @classmethod
+    def setup_class(cls):
+        from faker.providers.currency.fa_IR import Provider as FaIrCurrencyProvider
+
+        cls.provider = FaIrCurrencyProvider
+
+    def test_pricetag(self, faker, num_samples):
+        for _ in range(num_samples):
+            pricetag = faker.pricetag()
+            assert isinstance(pricetag, str)
+
+
 class TestFrCa:
     """Test fr_CA currency provider"""