--- a/tests/drawdag.py	Tue Mar 11 11:38:30 2025 +0100
+++ b/tests/drawdag.py	Tue Mar 11 10:33:15 2025 +0100
@@ -82,7 +82,8 @@
 
 Special comment can also be used to control file content for some revision.
 
-The example below create two extra files in A, update on in B.
+The example below create two extra files in A, update on in B and delete the
+other on in C (using a special content to mark the deletion).
 
 In all case the file matching the node name is created for all non-merge
 commit.
@@ -90,7 +91,7 @@
     C # A/file/path=content in A
     | # A/other/file/path=content for another file
     B # B/file/path=updated content in B
-    | 
+    | # C/other/file/path=<deleted>
     A
 """
 
@@ -313,7 +314,10 @@
             self._parents.append(repo[repo.nullid])
 
     def filectx(self, key):
-        return simplefilectx(key, self._added[key])
+        content = self._added.get(key)
+        if content is not None:
+            return simplefilectx(key, content)
+        return None
 
     def commit(self):
         return self._repo.commitctx(self)
@@ -394,10 +398,13 @@
     # parse comments to get extra file content instructions
     files = collections.defaultdict(dict)  # {(name, path): content}
     comments = list(_getcomments(text))
-    filere = re.compile(br'^(\w+)/([\w/]+)\s*=\s*(.*)$', re.M)
+    filere = re.compile(br'^(\w+)/([-_\w/"]+)\s*=\s*(.*)$', re.M)
     for name, path, content in filere.findall(b'\n'.join(comments)):
         content = content.replace(br'\n', b'\n').replace(br'\1', b'\1')
-        files[name][path] = content
+        if content == b"<deleted>":
+            files[name][path] = None
+        else:
+            files[name][path] = content
 
     committed = {None: repo.nullid}  # {name: node}
 

--- a/tests/test-drawdag.t	Tue Mar 11 11:38:30 2025 +0100
+++ b/tests/test-drawdag.t	Tue Mar 11 10:33:15 2025 +0100
@@ -242,36 +242,43 @@
   > |\      # B/dir2/b = 34
   > A B     # C/dir1/c = 5
   >         # C/dir2/c = 6
+  >         # A/to-be"deleted" = I am doomed.
+  >         # B/to-be-deleted_too = The end is near.
+  >         # C/to-be"deleted"=<deleted>
+  >         # C/to-be-deleted_too = <deleted>
   >         # C/A = a
   >         # C/B = b
   > EOS
 
   $ hg log -G -T '{desc} {files}'
-  o    C A B dir1/c dir2/c
+  o    C A B dir1/c dir2/c to-be"deleted" to-be-deleted_too
   |\
-  | o  B B dir2/b
+  | o  B B dir2/b to-be-deleted_too
   |
-  o  A A dir1/a
+  o  A A dir1/a to-be"deleted"
   
   $ for r in `hg log -T '{rev} ' --rev "sort(all())"`; do
   >     hg log --rev $r -T "### {tags} ###\n";
   >     hg diff --change $r --stat;
   > done
   ### A ###
-   A      |  1 +
-   dir1/a |  2 ++
-   2 files changed, 3 insertions(+), 0 deletions(-)
+   A              |  1 +
+   dir1/a         |  2 ++
+   to-be"deleted" |  1 +
+   3 files changed, 4 insertions(+), 0 deletions(-)
   ### B ###
-   B      |  1 +
-   dir2/b |  1 +
-   2 files changed, 2 insertions(+), 0 deletions(-)
+   B                 |  1 +
+   dir2/b            |  1 +
+   to-be-deleted_too |  1 +
+   3 files changed, 3 insertions(+), 0 deletions(-)
   ### C tip ###
-   A      |  1 +
-   B      |  2 +-
-   dir1/a |  2 ++
-   dir1/c |  1 +
-   dir2/c |  1 +
-   5 files changed, 6 insertions(+), 1 deletions(-)
+   A              |  2 +-
+   B              |  1 +
+   dir1/c         |  1 +
+   dir2/b         |  1 +
+   dir2/c         |  1 +
+   to-be"deleted" |  1 -
+   6 files changed, 5 insertions(+), 2 deletions(-)
   $ hg files -r C
   A
   B