diff --git a/tests/test-extension.t b/tests/test-extension.t
--- a/tests/test-extension.t
+++ b/tests/test-extension.t
@@ -140,7 +140,7 @@
   > from mercurial import demandimport; demandimport.enable()
   > from mercurial.hgweb import hgweb
   > from mercurial.hgweb import wsgicgi
-  > application = hgweb('.', 'test repo')
+  > application = hgweb(b'.', b'test repo')
   > wsgicgi.launch(application)
   > EOF
   $ . "$TESTDIR/cgienv"
diff --git a/tests/test-hgweb-commands.t b/tests/test-hgweb-commands.t
--- a/tests/test-hgweb-commands.t
+++ b/tests/test-hgweb-commands.t
@@ -2276,7 +2276,7 @@
   > from mercurial import demandimport; demandimport.enable()
   > from mercurial.hgweb import hgweb
   > from mercurial.hgweb import wsgicgi
-  > app = hgweb('.', 'test')
+  > app = hgweb(b'.', b'test')
   > wsgicgi.launch(app)
   > HGWEB
   $ . "$TESTDIR/cgienv"
diff --git a/tests/test-mq.t b/tests/test-mq.t
--- a/tests/test-mq.t
+++ b/tests/test-mq.t
@@ -1565,7 +1565,7 @@
   > from mercurial.hgweb import wsgicgi
   > import cgitb
   > cgitb.enable()
-  > app = hgweb('.', 'test')
+  > app = hgweb(b'.', b'test')
   > wsgicgi.launch(app)
   > HGWEB
   $ . "$TESTDIR/cgienv"
diff --git a/tests/test-newercgi.t b/tests/test-newercgi.t
--- a/tests/test-newercgi.t
+++ b/tests/test-newercgi.t
@@ -16,7 +16,7 @@
   > from mercurial.hgweb import hgweb
   > from mercurial.hgweb import wsgicgi
   > 
-  > application = hgweb("test", "Empty test repository")
+  > application = hgweb(b"test", b"Empty test repository")
   > wsgicgi.launch(application)
   > HGWEB
 
diff --git a/tests/test-oldcgi.t b/tests/test-oldcgi.t
--- a/tests/test-oldcgi.t
+++ b/tests/test-oldcgi.t
@@ -14,7 +14,7 @@
   > # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install
   > from mercurial import hgweb
   > 
-  > h = hgweb.hgweb("test", "Empty test repository")
+  > h = hgweb.hgweb(b"test", b"Empty test repository")
   > h.run()
   > HGWEB
 
diff --git a/tests/test-push-cgi.t b/tests/test-push-cgi.t
--- a/tests/test-push-cgi.t
+++ b/tests/test-push-cgi.t
@@ -21,7 +21,7 @@
   > from mercurial import demandimport; demandimport.enable()
   > from mercurial.hgweb import hgweb
   > from mercurial.hgweb import wsgicgi
-  > application = hgweb('.', 'test repository')
+  > application = hgweb(b'.', b'test repository')
   > wsgicgi.launch(application)
   > HGWEB
   $ chmod 755 hgweb.cgi