diff --git a/src/cache.rs b/src/cache.rs
index cea07bd..bfec075 100644
--- a/src/cache.rs
+++ b/src/cache.rs
@@ -143,6 +143,7 @@ impl Cache {
     /// Compares two Caches to check they have the same current content
     ///
     /// This is not a complete equality test: some attributes (sync status...) may differ. This should mostly be used in tests
+    #[cfg(any(test, feature = "integration_tests"))]
     pub async fn has_same_observable_content_as(&self, other: &Self) -> Result<bool, Box<dyn Error>> {
         let calendars_l = self.get_calendars().await?;
         let calendars_r = other.get_calendars().await?;
diff --git a/src/calendar/cached_calendar.rs b/src/calendar/cached_calendar.rs
index fa8b381..e0da5c4 100644
--- a/src/calendar/cached_calendar.rs
+++ b/src/calendar/cached_calendar.rs
@@ -59,6 +59,7 @@ impl CachedCalendar {
     }
 
     /// Some kind of equality check
+    #[cfg(any(test, feature = "integration_tests"))]
     pub async fn has_same_observable_content_as(&self, other: &CachedCalendar) -> Result<bool, Box<dyn Error>> {
         if self.name != other.name
         || self.id != other.id
diff --git a/src/event.rs b/src/event.rs
index 6287be9..23bdc52 100644
--- a/src/event.rs
+++ b/src/event.rs
@@ -47,6 +47,7 @@ impl Event {
         self.sync_status = new_status;
     }
 
+    #[cfg(any(test, feature = "integration_tests"))]
     pub fn has_same_observable_content_as(&self, _other: &Event) -> bool {
         unimplemented!();
     }
diff --git a/src/item.rs b/src/item.rs
index 77365d0..87512ac 100644
--- a/src/item.rs
+++ b/src/item.rs
@@ -103,10 +103,11 @@ impl Item {
         }
     }
 
+    #[cfg(any(test, feature = "integration_tests"))]
     pub fn has_same_observable_content_as(&self, other: &Item) -> bool {
         match (self, other) {
             (Item::Event(s), Item::Event(o)) => s.has_same_observable_content_as(o),
-            (Item::Task(s),   Item::Task(o))   => s.has_same_observable_content_as(o),
+            (Item::Task(s),  Item::Task(o))  => s.has_same_observable_content_as(o),
             _ => false,
         }
     }
diff --git a/src/task.rs b/src/task.rs
index d5d6ddb..f02e58f 100644
--- a/src/task.rs
+++ b/src/task.rs
@@ -92,13 +92,15 @@ impl Task {
     pub fn creation_date(&self) -> Option<&DateTime<Utc>>   { self.creation_date.as_ref() }
     pub fn completion_status(&self) -> &CompletionStatus    { &self.completion_status }
 
+    #[cfg(any(test, feature = "integration_tests"))]
     pub fn has_same_observable_content_as(&self, other: &Task) -> bool {
            self.id == other.id
         && self.name == other.name
-        && self.completion_status == other.completion_status
-        && self.last_modified == other.last_modified
         // sync status must be the same variant, but we ignore its embedded version tag
         && std::mem::discriminant(&self.sync_status) == std::mem::discriminant(&other.sync_status)
+        // completion status must be the same variant, but we ignore its embedded completion date (they are not totally mocked in integration tests)
+        && std::mem::discriminant(&self.completion_status) == std::mem::discriminant(&other.completion_status)
+        // last modified dates are ignored (they are not totally mocked in integration tests)
     }
 
     pub fn set_sync_status(&mut self, new_status: SyncStatus) {
@@ -135,6 +137,7 @@ impl Task {
     /// Rename a task, but forces a "master" SyncStatus, just like CalDAV servers are always "masters"
     pub fn mock_remote_calendar_set_name(&mut self, new_name: String) {
         self.sync_status = SyncStatus::random_synced();
+        self.update_last_modified();
         self.name = new_name;
     }