SNOW-54514: Support region=us-west-2 connection.

Author: smtakeda

test/test_connection.py

@@ -453,12 +453,17 @@ def test_invalid_proxy(db_parameters):
 
 @pytest.mark.timeout(15)
 def test_eu_connection(tmpdir):
+    """
+    If region is specified to eu-central-1, the URL will become
+    https://testaccount1234.eu-central-1.snowflakecomputing.com/
+    NOTE: region is deprecated.
+    """
     import os
     os.environ["SF_OCSP_RESPONSE_CACHE_SERVER_ENABLED"] = "true"
     with pytest.raises(ForbiddenError):
         # must reach Snowflake
         snowflake.connector.connect(
-            account='testaccount',
+            account='testaccount1234',
             user='testuser',
             password='testpassword',
             region='eu-central-1',
@@ -468,6 +473,24 @@ def test_eu_connection(tmpdir):
         )
 
 
+@pytest.mark.timeout(15)
+def test_us_west_connection(tmpdir):
+    """
+    region='us-west-2' indicates no region is included in the hostname, i.e.,
+    https://testaccount1234.snowflakecomputing.com.
+    NOTE: region is deprecated.
+    """
+    with pytest.raises(ForbiddenError):
+        # must reach Snowflake
+        snowflake.connector.connect(
+            account='testaccount1234',
+            user='testuser',
+            password='testpassword',
+            region='us-west-2',
+            login_timeout=5,
+        )
+
+
 @pytest.mark.timeout(15)
 def test_privatelink(db_parameters):
     """

util_text.py

@@ -73,7 +73,7 @@ def split_statements(buf, remove_comments=False):
                     col += 2
                 elif line[col] == ch_quote:
                     if col < len_line - 1 and line[col + 1] != ch_quote or \
-                                    col == len_line - 1:
+                            col == len_line - 1:
                         # exits quote
                         in_quote = False
                         statement.append((line[col0:col + 1], True))
@@ -191,6 +191,8 @@ def construct_hostname(region, account):
     """
     Constructs hostname from region and account
     """
+    if region == u'us-west-2':
+        region = ''
     if region:
         if account.find(u'.') > 0:
             account = account[0:account.find(u'.')]