[#302] Autoadd marks for frostfs

Signed-off-by: a.berezin <a.berezin@yadro.com>

src/frostfs_testlib/__init__.py

@@ -1,3 +1,4 @@
 __version__ = "2.0.1"
 
 from .fixtures import configure_testlib, hosting, temp_directory
+from .hooks import pytest_collection_modifyitems

src/frostfs_testlib/hooks.py

@@ -0,0 +1,12 @@
+import pytest
+
+
+@pytest.hookimpl
+def pytest_collection_modifyitems(items: list[pytest.Item]):
+    # All tests which reside in frostfs nodeid are granted with frostfs marker, excluding
+    # nodeid = full path of the test
+    # 1. plugins
+    # 2. testlib itself
+    for item in items:
+        if "frostfs" in item.nodeid and "plugin" not in item.nodeid and "testlib" not in item.nodeid:
+            item.add_marker("frostfs")

src/frostfs_testlib/utils/string_utils.py

@@ -8,6 +8,7 @@ ONLY_ASCII_LETTERS = string.ascii_letters
 DIGITS_AND_ASCII_LETTERS = string.ascii_letters + string.digits
 NON_DIGITS_AND_LETTERS = string.punctuation
 
+# if unique_name is called multiple times within the same microsecond, append 0-4 to the name so it surely unique
 FUSE = itertools.cycle(range(5))