tests/test-hgweb-auth.py.out

repair: move check for existing transaction earlier

Several benefits:

 * Gets close the comment describing it
 * Splits off unrelated comment about "backup" argument
 * Error checking is customarily done early
 * If we added an early return to the method, it would still
   consistently fail if there was an existing transaction (so
   we would find and fix that case quickly)

One test needs updating with for this change, because we no longer
create the backup bundle before we fail. I don't see much reason to
create that backup bundle. If some command was adding content and then
trying to strip it as well within the transaction, we would have a
backup for the user, but the risk of that not being discovered in
development seems very small.

*** Test in-uri schemes

CFG: {x.prefix: http://example.org}
URI: http://example.org/foo
     ('x', 'x')
URI: http://example.org/foo/bar
     ('x', 'x')
URI: http://example.org/bar
     ('x', 'x')
URI: https://example.org/foo
     abort
URI: https://example.org/foo/bar
     abort
URI: https://example.org/bar
     abort
URI: https://[e-mail]/bar
     abort
URI: https://[e-mail]/bar
     abort
CFG: {x.prefix: https://example.org}
URI: http://example.org/foo
     abort
URI: http://example.org/foo/bar
     abort
URI: http://example.org/bar
     abort
URI: https://example.org/foo
     ('x', 'x')
URI: https://example.org/foo/bar
     ('x', 'x')
URI: https://example.org/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     abort
CFG: {x.prefix: http://example.org, x.schemes: https}
URI: http://example.org/foo
     ('x', 'x')
URI: http://example.org/foo/bar
     ('x', 'x')
URI: http://example.org/bar
     ('x', 'x')
URI: https://example.org/foo
     abort
URI: https://example.org/foo/bar
     abort
URI: https://example.org/bar
     abort
URI: https://[e-mail]/bar
     abort
URI: https://[e-mail]/bar
     abort
CFG: {x.prefix: https://example.org, x.schemes: http}
URI: http://example.org/foo
     abort
URI: http://example.org/foo/bar
     abort
URI: http://example.org/bar
     abort
URI: https://example.org/foo
     ('x', 'x')
URI: https://example.org/foo/bar
     ('x', 'x')
URI: https://example.org/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     abort

*** Test separately configured schemes

CFG: {x.prefix: example.org, x.schemes: http}
URI: http://example.org/foo
     ('x', 'x')
URI: http://example.org/foo/bar
     ('x', 'x')
URI: http://example.org/bar
     ('x', 'x')
URI: https://example.org/foo
     abort
URI: https://example.org/foo/bar
     abort
URI: https://example.org/bar
     abort
URI: https://[e-mail]/bar
     abort
URI: https://[e-mail]/bar
     abort
CFG: {x.prefix: example.org, x.schemes: https}
URI: http://example.org/foo
     abort
URI: http://example.org/foo/bar
     abort
URI: http://example.org/bar
     abort
URI: https://example.org/foo
     ('x', 'x')
URI: https://example.org/foo/bar
     ('x', 'x')
URI: https://example.org/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     abort
CFG: {x.prefix: example.org, x.schemes: http https}
URI: http://example.org/foo
     ('x', 'x')
URI: http://example.org/foo/bar
     ('x', 'x')
URI: http://example.org/bar
     ('x', 'x')
URI: https://example.org/foo
     ('x', 'x')
URI: https://example.org/foo/bar
     ('x', 'x')
URI: https://example.org/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     abort

*** Test prefix matching

CFG: {x.prefix: http://example.org/foo, y.prefix: http://example.org/bar}
URI: http://example.org/foo
     ('x', 'x')
URI: http://example.org/foo/bar
     ('x', 'x')
URI: http://example.org/bar
     ('y', 'y')
URI: https://example.org/foo
     abort
URI: https://example.org/foo/bar
     abort
URI: https://example.org/bar
     abort
URI: https://[e-mail]/bar
     abort
URI: https://[e-mail]/bar
     abort
CFG: {x.prefix: http://example.org/foo, y.prefix: http://example.org/foo/bar}
URI: http://example.org/foo
     ('x', 'x')
URI: http://example.org/foo/bar
     ('y', 'y')
URI: http://example.org/bar
     abort
URI: https://example.org/foo
     abort
URI: https://example.org/foo/bar
     abort
URI: https://example.org/bar
     abort
URI: https://[e-mail]/bar
     abort
URI: https://[e-mail]/bar
     abort
CFG: {x.prefix: *, y.prefix: https://example.org/bar}
URI: http://example.org/foo
     abort
URI: http://example.org/foo/bar
     abort
URI: http://example.org/bar
     abort
URI: https://example.org/foo
     ('x', 'x')
URI: https://example.org/foo/bar
     ('x', 'x')
URI: https://example.org/bar
     ('y', 'y')
URI: https://[e-mail]/bar
     ('x', 'x')
URI: https://[e-mail]/bar
     ('y', 'y')

*** Test user matching

CFG: {x.password: xpassword, x.prefix: http://example.org/foo, x.username: None}
URI: http://[e-mail]/foo
     ('y', 'xpassword')
CFG: {x.password: xpassword, x.prefix: http://example.org/foo, x.username: None, y.password: ypassword, y.prefix: http://example.org/foo, y.username: y}
URI: http://[e-mail]/foo
     ('y', 'ypassword')
CFG: {x.password: xpassword, x.prefix: http://example.org/foo/bar, x.username: None, y.password: ypassword, y.prefix: http://example.org/foo, y.username: y}
URI: http://[e-mail]/foo/bar
     ('y', 'xpassword')

*** Test urllib2 and util.url

URIs: http://[e-mail]:8080/foo http://example.com:8080/foo
('user', '')