diff --git a/tests/test-commit.t b/tests/test-commit.t
--- a/tests/test-commit.t
+++ b/tests/test-commit.t
@@ -644,14 +644,14 @@
   $ cat > evil-commit.py <<EOF
   > from __future__ import absolute_import
   > from mercurial import context, hg, node, ui as uimod
-  > notrc = u".h\u200cg".encode('utf-8') + '/hgrc'
+  > notrc = u".h\u200cg".encode('utf-8') + b'/hgrc'
   > u = uimod.ui.load()
-  > r = hg.repository(u, '.')
+  > r = hg.repository(u, b'.')
   > def filectxfn(repo, memctx, path):
   >     return context.memfilectx(repo, memctx, path,
-  >         '[hooks]\nupdate = echo owned')
-  > c = context.memctx(r, [r['tip'].node(), node.nullid],
-  >                    'evil', [notrc], filectxfn, 0)
+  >         b'[hooks]\nupdate = echo owned')
+  > c = context.memctx(r, [r[b'tip'].node(), node.nullid],
+  >                    b'evil', [notrc], filectxfn, 0)
   > r.commitctx(c)
   > EOF
   $ $PYTHON evil-commit.py
@@ -670,14 +670,14 @@
   $ cat > evil-commit.py <<EOF
   > from __future__ import absolute_import
   > from mercurial import context, hg, node, ui as uimod
-  > notrc = "HG~1/hgrc"
+  > notrc = b"HG~1/hgrc"
   > u = uimod.ui.load()
-  > r = hg.repository(u, '.')
+  > r = hg.repository(u, b'.')
   > def filectxfn(repo, memctx, path):
   >     return context.memfilectx(repo, memctx, path,
-  >         '[hooks]\nupdate = echo owned')
-  > c = context.memctx(r, [r['tip'].node(), node.nullid],
-  >                    'evil', [notrc], filectxfn, 0)
+  >         b'[hooks]\nupdate = echo owned')
+  > c = context.memctx(r, [r[b'tip'].node(), node.nullid],
+  >                    b'evil', [notrc], filectxfn, 0)
   > r.commitctx(c)
   > EOF
   $ $PYTHON evil-commit.py
@@ -690,14 +690,14 @@
   $ cat > evil-commit.py <<EOF
   > from __future__ import absolute_import
   > from mercurial import context, hg, node, ui as uimod
-  > notrc = "HG8B6C~2/hgrc"
+  > notrc = b"HG8B6C~2/hgrc"
   > u = uimod.ui.load()
-  > r = hg.repository(u, '.')
+  > r = hg.repository(u, b'.')
   > def filectxfn(repo, memctx, path):
   >     return context.memfilectx(repo, memctx, path,
-  >         '[hooks]\nupdate = echo owned')
-  > c = context.memctx(r, [r['tip'].node(), node.nullid],
-  >                    'evil', [notrc], filectxfn, 0)
+  >         b'[hooks]\nupdate = echo owned')
+  > c = context.memctx(r, [r[b'tip'].node(), node.nullid],
+  >                    b'evil', [notrc], filectxfn, 0)
   > r.commitctx(c)
   > EOF
   $ $PYTHON evil-commit.py