Add FuzzyEq trait (#3896)

core/src/dbs/fuzzy_eq.rs

@@ -0,0 +1,10 @@
+/// FuzzyEq trait is used to compare objects while ignoring values that are non-deterministic.
+/// Non detereministic values include:
+/// - Timestamps
+/// - UUIDs
+#[doc(hidden)]
+pub trait FuzzyEq<Rhs: ?Sized = Self> {
+	/// Use this when comparing objects that you do not want to compare properties that are
+	/// non-deterministic
+	fn fuzzy_eq(&self, other: &Rhs) -> bool;
+}

core/src/dbs/mod.rs

@@ -35,5 +35,7 @@ pub(crate) use self::statement::*;
 pub(crate) use self::transaction::*;
 pub(crate) use self::variables::*;
 
+#[doc(hidden)]
+pub mod fuzzy_eq;
 #[cfg(test)]
 pub(crate) mod test;

core/src/dbs/notification.rs

@@ -1,3 +1,5 @@
+#[cfg(test)]
+use crate::dbs::fuzzy_eq::FuzzyEq;
 use crate::sql::{Object, Uuid, Value};
 use revision::revisioned;
 use serde::{Deserialize, Serialize};
@@ -57,3 +59,10 @@ impl Notification {
 		}
 	}
 }
+
+#[cfg(test)]
+impl FuzzyEq for Notification {
+	fn fuzzy_eq(&self, other: &Self) -> bool {
+		self.action == other.action && self.result == other.result
+	}
+}