setup.cfg             | 2 --
 tests/shell.py        | 5 +++++
 tests/test_emitter.py | 8 ++++++--
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/setup.cfg b/setup.cfg
index 8c5532b..5130285 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -26,5 +26,3 @@ upload-dir = docs/build/html
 addopts =
     --showlocals
     -v
-    --cov=watchdog
-    --cov-report=term-missing
diff --git a/tests/shell.py b/tests/shell.py
index 0e7305a..bdf8991 100644
--- a/tests/shell.py
+++ b/tests/shell.py
@@ -26,6 +26,7 @@ import shutil
 import errno
 import time
 
+import pytest
 
 # def tree(path='.', show_files=False):
 #    print(path)
@@ -124,8 +125,12 @@ def msize(path):
 
 
 def mount_tmpfs(path):
+    if os.environ.get("NO_SUDO") is not None:
+        pytest.skip("Requires sudo")
     os.system(f"sudo mount -t tmpfs none {path}")
 
 
 def unmount(path):
+    if os.environ.get("NO_SUDO") is not None:
+        return
     os.system(f"sudo umount {path}")
diff --git a/tests/test_emitter.py b/tests/test_emitter.py
index 1721b30..1572f91 100644
--- a/tests/test_emitter.py
+++ b/tests/test_emitter.py
@@ -145,9 +145,13 @@ def test_close():
     assert os.path.normpath(event.src_path) == os.path.normpath(p(""))
     assert isinstance(event, DirModifiedEvent)
 
-    # After read-only, only IN_CLOSE_NOWRITE is emitted but not caught for now #747
-    open(p("a"), "r").close()
+    f_d = open(p("a"), "r")
+    event = event_queue.get(timeout=5)[0]
+    assert event.src_path == p("a")
+    assert isinstance(event, FileOpenedEvent)
 
+    f_d.close()
+    # After read-only, only IN_CLOSE_NOWRITE is emitted but not caught for now #747
     assert event_queue.empty()