--- a/tests/test-share-safe.t	Fri Aug 07 17:42:15 2020 +0530
+++ b/tests/test-share-safe.t	Thu Jul 02 16:23:36 2020 +0530
@@ -66,4 +66,112 @@
   $ echo c > c
   $ hg ci -Aqm "added c"
 
+Check that config of the source repository is also loaded
+
+  $ hg showconfig ui.curses
+  [1]
+
+  $ echo "[ui]" >> ../source/.hg/hgrc
+  $ echo "curses=true" >> ../source/.hg/hgrc
+
+  $ hg showconfig ui.curses
+  true
+
+However, local .hg/hgrc should override the config set by share source
+
+  $ echo "[ui]" >> .hg/hgrc
+  $ echo "curses=false" >> .hg/hgrc
+
+  $ hg showconfig ui.curses
+  false
+
+Testing that hooks set in source repository also runs in shared repo
+
+  $ cd ../source
+  $ cat <<EOF >> .hg/hgrc
+  > [extensions]
+  > hooklib=
+  > [hooks]
+  > pretxnchangegroup.reject_merge_commits = \
+  >   python:hgext.hooklib.reject_merge_commits.hook
+  > EOF
+
+  $ cd ..
+  $ hg clone source cloned
+  updating to branch default
+  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ cd cloned
+  $ hg up 0
+  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
+  $ echo bar > bar
+  $ hg ci -Aqm "added bar"
+  $ hg merge
+  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  (branch merge, don't forget to commit)
+  $ hg ci -m "merge commit"
+
+  $ hg push ../source
+  pushing to ../source
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  error: pretxnchangegroup.reject_merge_commits hook failed: bcde3522682d rejected as merge on the same branch. Please consider rebase.
+  transaction abort!
+  rollback completed
+  abort: bcde3522682d rejected as merge on the same branch. Please consider rebase.
+  [255]
+
+  $ hg push ../shared1
+  pushing to ../shared1
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  error: pretxnchangegroup.reject_merge_commits hook failed: bcde3522682d rejected as merge on the same branch. Please consider rebase.
+  transaction abort!
+  rollback completed
+  abort: bcde3522682d rejected as merge on the same branch. Please consider rebase.
+  [255]
+
+Test that if share source config is untrusted, we dont read it
+
+  $ cd ../shared1
+
+  $ cat << EOF > $TESTTMP/untrusted.py
+  > from mercurial import scmutil, util
+  > def uisetup(ui):
+  >     class untrustedui(ui.__class__):
+  >         def _trusted(self, fp, f):
+  >             if util.normpath(fp.name).endswith(b'source/.hg/hgrc'):
+  >                 return False
+  >             return super(untrustedui, self)._trusted(fp, f)
+  >     ui.__class__ = untrustedui
+  > EOF
+
+  $ hg showconfig hooks
+  hooks.pretxnchangegroup.reject_merge_commits=python:hgext.hooklib.reject_merge_commits.hook
+
+  $ hg showconfig hooks --config extensions.untrusted=$TESTTMP/untrusted.py
+  [1]
+
+Unsharing works
+
   $ hg unshare
+
+Test that source config is added to the shared one after unshare, and the config
+of current repo is still respected over the config which came from source config
+  $ cd ../cloned
+  $ hg push ../shared1
+  pushing to ../shared1
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  error: pretxnchangegroup.reject_merge_commits hook failed: bcde3522682d rejected as merge on the same branch. Please consider rebase.
+  transaction abort!
+  rollback completed
+  abort: bcde3522682d rejected as merge on the same branch. Please consider rebase.
+  [255]
+  $ hg showconfig ui.curses -R ../shared1
+  false