[#310] Extend bucket testsuite

- Added tests to check the correctness of bucket names according to the AWS specification

Signed-off-by: Kirill Sosnovskikh <k.sosnovskikh@yadro.com>

pytest_tests/testsuites/services/s3_gate/test_s3_bucket.py

@@ -1,3 +1,4 @@
+import string
 from datetime import datetime, timedelta
 
 import allure
@@ -6,8 +7,15 @@ from frostfs_testlib import reporter
 from frostfs_testlib.s3 import S3ClientWrapper, VersioningStatus
 from frostfs_testlib.steps.s3 import s3_helper
 from frostfs_testlib.storage.dataclasses.object_size import ObjectSize
+from frostfs_testlib.utils import string_utils
 from frostfs_testlib.utils.file_utils import generate_file
 
+VALID_SYMBOLS_WITHOUT_DOT = string.ascii_lowercase + string.digits + "-"
+VALID_AND_INVALID_SYMBOLS = string.ascii_letters + string.punctuation
+
+# TODO: The dot symbol is temporarily not supported.
+VALID_SYMBOLS_WITH_DOT = VALID_SYMBOLS_WITHOUT_DOT + "."
+
 
 @pytest.mark.nightly
 @pytest.mark.s3_gate
@@ -140,3 +148,51 @@ class TestS3GateBucket:
             s3_client.delete_bucket(bucket)
             with pytest.raises(Exception, match=r".*Not Found.*"):
                 s3_client.head_bucket(bucket)
+
+    @allure.title("Create bucket with valid name length (s3_client={s3_client} length={length})")
+    @pytest.mark.parametrize("length", [3, 4, 32, 63])
+    def test_create_bucket_with_valid_length(self, s3_client: S3ClientWrapper, length: int):
+        bucket_name = string_utils.random_string(length, VALID_SYMBOLS_WITHOUT_DOT)
+        while not (bucket_name[0].isalnum() and bucket_name[-1].isalnum()):
+            bucket_name = string_utils.random_string(length, VALID_SYMBOLS_WITHOUT_DOT)
+
+        with reporter.step("Create bucket with valid name length"):
+            s3_client.create_bucket(bucket_name)
+
+        with reporter.step("Check bucket name in buckets"):
+            assert bucket_name in s3_client.list_buckets()
+
+    @allure.title("[NEGATIVE] Create bucket with invalid name length (s3_client={s3_client} length={length})")
+    @pytest.mark.parametrize("length", [2, 64, 254, 255, 256])
+    def test_create_bucket_with_invalid_length(self, s3_client: S3ClientWrapper, length: int):
+        bucket_name = string_utils.random_string(length, VALID_SYMBOLS_WITHOUT_DOT)
+        while not (bucket_name[0].isalnum() and bucket_name[-1].isalnum()):
+            bucket_name = string_utils.random_string(length, VALID_SYMBOLS_WITHOUT_DOT)
+
+        with reporter.step("Create bucket with invalid name length and catch exception"):
+            with pytest.raises(Exception, match=".*(?:InvalidBucketName|Invalid bucket name).*"):
+                s3_client.create_bucket(bucket_name)
+
+    @allure.title("[NEGATIVE] Create bucket with invalid name (s3_client={s3_client}, prefix={prefix}, postfix={postfix})")
+    @pytest.mark.parametrize(
+        "prefix, postfix",
+        [
+            ["BUCKET-", "-1"],
+            ["buckeT-", "-2"],
+            ["-bucket-", "-3"],
+            ["-bucket-", "5-"],
+            [".bucket-", "-6"],
+            ["bucket-", "-7."],
+            ["bucket..", "-8"],
+            ["bucket+", "-9"],
+            ["bucket_", "-10"],
+            ["127.10.5.11", None],
+            ["xn--bucket-", "-12"],
+            ["bucket-13-", "-s3alias"],
+        ],
+    )
+    def test_create_bucket_with_invalid_name(self, s3_client: S3ClientWrapper, prefix: str, postfix: str | None):
+        bucket_name = prefix if postfix is None else string_utils.unique_name(prefix, postfix)
+        with reporter.step("Create bucket with invalid name and catch exception"):
+            with pytest.raises(Exception, match=".*(?:InvalidBucketName|Invalid bucket name|argument --bucket: expected one argument).*"):
+                s3_client.create_bucket(bucket_name)