Remove unused `app fixture passed to test_util_rst` tests (#12840)

tests/test_util/test_util_rst.py

@@ -1,6 +1,5 @@
 """Tests sphinx.util.rst functions."""
 
-import pytest
 from docutils.statemachine import StringList
 from jinja2 import Environment
 
@@ -14,8 +13,7 @@ def test_escape():
     assert escape('.. toctree::') == r'\.. toctree\:\:'
 
 
-@pytest.mark.sphinx('html', testroot='root')
-def test_append_epilog(app):
+def test_append_epilog():
     epilog = 'this is rst_epilog\ngood-bye reST!'
     content = StringList(
         ['hello Sphinx world', 'Sphinx is a document generator'],
@@ -32,8 +30,7 @@ def test_append_epilog(app):
     ]
 
 
-@pytest.mark.sphinx('html', testroot='root')
-def test_prepend_prolog(app):
+def test_prepend_prolog():
     prolog = 'this is rst_prolog\nhello reST!'
     content = StringList(
         [
@@ -60,8 +57,7 @@ def test_prepend_prolog(app):
     ]
 
 
-@pytest.mark.sphinx('html', testroot='root')
-def test_prepend_prolog_with_CR(app):
+def test_prepend_prolog_with_CR():
     # prolog having CR at tail
     prolog = 'this is rst_prolog\nhello reST!\n'
     content = StringList(
@@ -79,8 +75,7 @@ def test_prepend_prolog_with_CR(app):
     ]
 
 
-@pytest.mark.sphinx('html', testroot='root')
-def test_prepend_prolog_without_CR(app):
+def test_prepend_prolog_without_CR():
     # prolog not having CR at tail
     prolog = 'this is rst_prolog\nhello reST!'
     content = StringList(
@@ -98,8 +93,7 @@ def test_prepend_prolog_without_CR(app):
     ]
 
 
-@pytest.mark.sphinx('html', testroot='root')
-def test_prepend_prolog_with_roles_in_sections(app):
+def test_prepend_prolog_with_roles_in_sections():
     prolog = 'this is rst_prolog\nhello reST!'
     content = StringList(
         [
@@ -130,8 +124,7 @@ def test_prepend_prolog_with_roles_in_sections(app):
     ]
 
 
-@pytest.mark.sphinx('html', testroot='root')
-def test_prepend_prolog_with_roles_in_sections_with_newline(app):
+def test_prepend_prolog_with_roles_in_sections_with_newline():
     # prologue with trailing line break
     prolog = 'this is rst_prolog\nhello reST!\n'
     content = StringList([':mod:`foo`', '-' * 10, '', 'hello'], 'dummy.rst')
@@ -148,8 +141,7 @@ def test_prepend_prolog_with_roles_in_sections_with_newline(app):
     ]
 
 
-@pytest.mark.sphinx('html', testroot='root')
-def test_prepend_prolog_with_roles_in_sections_without_newline(app):
+def test_prepend_prolog_with_roles_in_sections_without_newline():
     # prologue with no trailing line break
     prolog = 'this is rst_prolog\nhello reST!'
     content = StringList([':mod:`foo`', '-' * 10, '', 'hello'], 'dummy.rst')