diff --git a/swh/provenance/model.py b/swh/provenance/model.py
--- a/swh/provenance/model.py
+++ b/swh/provenance/model.py
@@ -141,6 +141,20 @@
     def __str__(self):
         return f"<MDirectory[{self.id.hex()}] {self.name}>"
 
+    def __eq__(self, other):
+        sameFiles = (self._files is None and other._files is None) or (
+            set(self._files) == set(other._files)
+        )
+        sameDirs = (self._dirs is None and other._dirs is None) or (
+            set(self._dirs) == set(other._dirs)
+        )
+        return (
+            isinstance(other, DirectoryEntry)
+            and (self.id, self.name) == (other.id, other.name)
+            and sameFiles
+            and sameDirs
+        )
+
 
 class FileEntry:
     def __init__(self, id: bytes, name: bytes):
@@ -149,3 +163,9 @@
 
     def __str__(self):
         return f"<MFile[{self.id.hex()}] {self.name}>"
+
+    def __eq__(self, other):
+        return isinstance(other, FileEntry) and (self.id, self.name) == (
+            other.id,
+            other.name,
+        )
diff --git a/swh/provenance/provenance.py b/swh/provenance/provenance.py
--- a/swh/provenance/provenance.py
+++ b/swh/provenance/provenance.py
@@ -314,6 +314,22 @@
         self.children.append(node)
         return node
 
+    def __eq__(self, other):
+        sameDbDate = (
+            self._dbdate is None and other._dbdate is None
+        ) or self._dbdate == other._dbdate
+        sameMaxdate = (
+            self.maxdate is None and other.maxdate is None
+        ) or self.maxdate == other.maxdate
+        return (
+            isinstance(other, IsochroneNode)
+            and (self.entry, self.depth, self.known, self.path)
+            == (other.entry, other.depth, other.known, other.path)
+            and sameDbDate
+            and sameMaxdate
+            and set(self.children) == set(other.children)
+        )
+
 
 def build_isochrone_graph(
     archive: ArchiveInterface,