feat(azure regions): support non default azure region (#3013)

Co-authored-by: Pepe Fagoaga <pepe@verica.io>

tests/lib/cli/parser_test.py

@@ -1,9 +1,11 @@
 import uuid
+from argparse import ArgumentTypeError
 
 import pytest
 from mock import patch
 
 from prowler.lib.cli.parser import ProwlerArgumentParser
+from prowler.providers.azure.lib.arguments.arguments import validate_azure_region
 
 prowler_command = "prowler"
 
@@ -1050,6 +1052,14 @@ class Test_Parser:
         assert parsed.subscription_ids[0] == subscription_1
         assert parsed.subscription_ids[1] == subscription_2
 
+    def test_parser_azure_region(self):
+        argument = "--azure-region"
+        region = "AzureChinaCloud"
+        command = [prowler_command, "azure", argument, region]
+        parsed = self.parser.parse(command)
+        assert parsed.provider == "azure"
+        assert parsed.azure_region == region
+
     # Test AWS flags with Azure provider
     def test_parser_azure_with_aws_flag(self, capsys):
         command = [prowler_command, "azure", "-p"]
@@ -1092,3 +1102,33 @@ class Test_Parser:
         assert len(parsed.project_ids) == 2
         assert parsed.project_ids[0] == project_1
         assert parsed.project_ids[1] == project_2
+
+    def test_validate_azure_region_valid_regions(self):
+        expected_regions = [
+            "AzureChinaCloud",
+            "AzureUSGovernment",
+            "AzureGermanCloud",
+            "AzureCloud",
+        ]
+        input_regions = [
+            "AzureChinaCloud",
+            "AzureUSGovernment",
+            "AzureGermanCloud",
+            "AzureCloud",
+        ]
+        for region in input_regions:
+            assert validate_azure_region(region) in expected_regions
+
+    def test_validate_azure_region_invalid_regions(self):
+        expected_regions = [
+            "AzureChinaCloud",
+            "AzureUSGovernment",
+            "AzureGermanCloud",
+            "AzureCloud",
+        ]
+        invalid_region = "non-valid-region"
+        with pytest.raises(
+            ArgumentTypeError,
+            match=f"Region {invalid_region} not allowed, allowed regions are {' '.join(expected_regions)}",
+        ):
+            validate_azure_region(invalid_region)