[PATCH v2 07/14] test-util-filemonitor: Adapt to the FreeBSD inotify rename semantics

[Alex Bennée]

From: Ilya Leoshkevich <iii@linux.ibm.com>

Unlike on Linux, on FreeBSD renaming a file when the destination
already exists results in an IN_DELETE event for that existing file:

    $ FILEMONITOR_DEBUG=1 build/tests/unit/test-util-filemonitor
    Rename /tmp/test-util-filemonitor-K13LI2/fish/one.txt -> 
/tmp/test-util-filemonitor-K13LI2/two.txt
    Event id=200000000 event=2 file=one.txt
    Queue event id 200000000 event 2 file one.txt
    Queue event id 100000000 event 2 file two.txt
    Queue event id 100000002 event 2 file two.txt
    Queue event id 100000000 event 0 file two.txt
    Queue event id 100000002 event 0 file two.txt
    Event id=100000000 event=0 file=two.txt
    Expected event 0 but got 2

This difference in behavior is not expected to break the real users, so
teach the test to accept it.

Suggested-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240206002344.12372-4-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/unit/test-util-filemonitor.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/unit/test-util-filemonitor.c 
b/tests/unit/test-util-filemonitor.c
index a22de275955..02e67fc96ac 100644
--- a/tests/unit/test-util-filemonitor.c
+++ b/tests/unit/test-util-filemonitor.c
@@ -360,6 +360,14 @@ test_file_monitor_events(void)
         { .type = QFILE_MONITOR_TEST_OP_EVENT,
           .filesrc = "one.txt", .watchid = &watch4,
           .eventid = QFILE_MONITOR_EVENT_DELETED },
+#ifdef __FreeBSD__
+        { .type = QFILE_MONITOR_TEST_OP_EVENT,
+          .filesrc = "two.txt", .watchid = &watch0,
+          .eventid = QFILE_MONITOR_EVENT_DELETED },
+        { .type = QFILE_MONITOR_TEST_OP_EVENT,
+          .filesrc = "two.txt", .watchid = &watch2,
+          .eventid = QFILE_MONITOR_EVENT_DELETED },
+#endif
         { .type = QFILE_MONITOR_TEST_OP_EVENT,
           .filesrc = "two.txt", .watchid = &watch0,
           .eventid = QFILE_MONITOR_EVENT_CREATED },
-- 
2.39.2