Mark deprecated tests

pytest.ini

@@ -1,3 +1,5 @@
 [pytest]
 cache_dir = /tmp
 addopts = -ra
+markers =
+  deprecated: marks tests for deprecated features (deselect with '-m "not deprecated"')

test/test_compat_alt.py

@@ -6,6 +6,9 @@ import py
 import pytest
 import utils
 
+# These tests are for the alternate processing in YADM_COMPATIBILITY=1 mode
+pytestmark = pytest.mark.deprecated
+
 # These test IDs are broken. During the writing of these tests, problems have
 # been discovered in the way yadm orders matching files.
 BROKEN_TEST_IDS = [

test/test_compat_jinja.py

@@ -4,6 +4,9 @@ import os
 import pytest
 import utils
 
+# These tests are for the template processing in YADM_COMPATIBILITY=1 mode
+pytestmark = pytest.mark.deprecated
+
 
 @pytest.fixture(scope='module')
 def envtpl_present(runner):