tests/test-dispatch.py

exchange: parse requirements from stream clone specification string

Stream clone bundles can only be consumed if the consumer supports the
exact format requirements that were present on the producer.

This patch adds support for encoding and verifying the format
requirements on the bundle specification string for a stream clone
bundle are supported by the local repository. If they aren't, we raise
an UnsupportedBundleSpecification, just like we do when an unknown
compression or bundle type is encountered.

The impetus for this patch is so the clone bundles manifest can
advertise stream clone bundles and so clients can filter out stream
clones with unsupported format requirements. e.g. a stream clone
produced with the not-yet-invented "revlogv2" format will be ignored by
clients that only support "revlogv1."

import os
from mercurial import dispatch

def testdispatch(cmd):
    """Simple wrapper around dispatch.dispatch()

    Prints command and result value, but does not handle quoting.
    """
    print "running: %s" % (cmd,)
    req = dispatch.request(cmd.split())
    result = dispatch.dispatch(req)
    print "result: %r" % (result,)


testdispatch("init test1")
os.chdir('test1')

# create file 'foo', add and commit
f = open('foo', 'wb')
f.write('foo\n')
f.close()
testdispatch("add foo")
testdispatch("commit -m commit1 -d 2000-01-01 foo")

# append to file 'foo' and commit
f = open('foo', 'ab')
f.write('bar\n')
f.close()
testdispatch("commit -m commit2 -d 2000-01-02 foo")

# check 88803a69b24 (fancyopts modified command table)
testdispatch("log -r 0")
testdispatch("log -r tip")