[skip ci] Add alias testcase (#8335)

Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>

tests/python_client/testcases/test_alias.py

@@ -0,0 +1,21 @@
+import pytest
+
+from base.client_base import TestcaseBase
+
+prefix = "alias"
+
+class TestAliasParams(TestcaseBase):
+    """ Test cases of alias interface parameters"""
+    pass
+
+class TestAliasParamsInvalid(TestcaseBase):
+    """ Negative test cases of alias interface parameters"""
+    pass
+
+class TestAliasOperation(TestcaseBase):
+    """ Test cases of alias interface operations"""
+    pass
+
+class TestAliasOperationInvalid(TestcaseBase):
+    """ Negative test cases of alias interface operations"""
+    pass