Add a test for the Branch header being in hg export.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-impexp-branch Thu May 17 20:09:44 2007 -0700
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+cat >findbranch.py <<EOF
+import re, sys
+
+head_re = re.compile('^#(?:(?:\\s+([A-Za-z][A-Za-z0-9_]*)(?:\\s.*)?)|(?:\\s*))$')
+
+for line in sys.stdin:
+ hmatch = head_re.match(line)
+ if not hmatch:
+ sys.exit(1)
+ if hmatch.group(1) == 'Branch':
+ sys.exit(0)
+sys.exit(1)
+EOF
+hg init a
+cd a
+echo "Rev 1" >rev
+hg add rev
+hg commit -m "No branch."
+hg branch abranch
+echo "Rev 2" >rev
+hg commit -m "With branch."
+if hg export 0 | python ../findbranch.py; then
+ echo "Export of default branch revision has Branch header" 1>&2
+ exit 1
+fi
+if hg export 1 | python ../findbranch.py; then
+ : # Do nothing
+else
+ echo "Export of branch revision is missing Branch header" 1>&2
+ exit 1
+fi
+# Make sure import still works with branch information in patches.
+cd ..
+hg init b
+cd b
+hg -R ../a export 0 | hg import -
+hg -R ../a export 1 | hg import -
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-impexp-branch.out Thu May 17 20:09:44 2007 -0700
@@ -0,0 +1,2 @@
+applying patch from stdin
+applying patch from stdin