--- a/tests/test-copies-chain-merge.t	Mon Apr 19 11:22:24 2021 +0200
+++ b/tests/test-copies-chain-merge.t	Mon Apr 19 11:22:24 2021 +0200
@@ -1,4 +1,4 @@
-#testcases filelog compatibility changeset sidedata upgraded upgraded-parallel pull push pull-upgrade
+#testcases filelog compatibility changeset sidedata upgraded upgraded-parallel pull push pull-upgrade push-upgrade
 
 =====================================================
 Test Copy tracing for chain of copies involving merge
@@ -73,7 +73,6 @@
   > EOF
 #endif
 
-
 #if pull-upgrade
   $ cat >> $HGRCPATH << EOF
   > [format]
@@ -84,6 +83,16 @@
   > EOF
 #endif
 
+#if push-upgrade
+  $ cat >> $HGRCPATH << EOF
+  > [format]
+  > exp-use-side-data = no
+  > exp-use-copies-side-data-changeset = no
+  > [experimental]
+  > changegroup4 = yes
+  > EOF
+#endif
+
   $ cat > same-content.txt << EOF
   > Here is some content that will be the same accros multiple file.
   > 
@@ -1770,6 +1779,28 @@
   $ cd ../repo-chain
 #endif
 
+#if push-upgrade
+  $ cat >> $HGRCPATH << EOF
+  > [format]
+  > exp-use-side-data = yes
+  > exp-use-copies-side-data-changeset = yes
+  > [experimental]
+  > changegroup4 = yes
+  > EOF
+  $ cd ..
+  $ mv repo-chain repo-source
+  $ hg init repo-chain
+  $ cd repo-source
+  $ hg push ../repo-chain
+  pushing to ../repo-chain
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 80 changesets with 44 changes to 25 files (+39 heads)
+  $ cd ../repo-chain
+#endif
+
 #if no-compatibility no-filelog no-changeset
 
   $ hg debugchangedfiles --compute 0