sidedatacopies: introduce a sidedata testcase for test-copies-unrelated.t

For now it is equivalent to the filelog case, but introducing this early helps
make the comings changesets clearer.

Differential Revision: https://phab.mercurial-scm.org/D6948

tests/test-copies-unrelated.t

@@ -1,4 +1,4 b''
-#testcases filelog compatibility changeset
+#testcases filelog compatibility changeset sidedata
 
   $ cat >> $HGRCPATH << EOF
   > [extensions]
@@ -22,6 +22,13 b''
   > EOF
 #endif
 
+#if sidedata
+  $ cat >> $HGRCPATH << EOF
+  > [format]
+  > exp-use-copies-side-data-changeset = yes
+  > EOF
+#endif
+
   $ REPONUM=0
   $ newrepo() {
   >     cd $TESTTMP
@@ -172,8 +179,8 b' the break.'
   o  0 add x
      x
   $ hg debugpathcopies 0 5
-  x -> y (no-filelog !)
-#if no-filelog
+  x -> y (no-filelog no-sidedata !)
+#if no-filelog no-sidedata
   $ hg graft -r 2
   grafting 2:* "modify x again" (glob)
   merging y and x to y
@@ -340,8 +347,12 b' different between the branches.'
   o  0 base
      a
   $ hg debugpathcopies 1 5
-  x -> y (no-filelog !)
-#if filelog
+  x -> y (no-filelog no-sidedata !)
+#if no-filelog no-sidedata
+  $ hg graft -r 2
+  grafting 2:* "modify x" (glob)
+  merging y and x to y
+#else
 BROKEN: This should succeed and merge the changes from x into y
   $ hg graft -r 2
   grafting 2:* "modify x" (glob)
@@ -351,10 +362,6 b' BROKEN: This should succeed and merge th'
   abort: unresolved conflicts, can't continue
   (use 'hg resolve' and 'hg graft --continue')
   [255]
-#else
-  $ hg graft -r 2
-  grafting 2:* "modify x" (glob)
-  merging y and x to y
 #endif
   $ hg co -qC 2
 BROKEN: This should succeed and merge the changes from x into y