tests/test-ui-config.py

filelog: don't crash on invalid copy metadata (issue5748)

"copy" and "copyrev" are both supposed to appear next to each other.
However, a user report demonstrated a crash that indicates that
something in the wild is producing "copy" without "copyrev"
(probably `hg convert`).

While we should definitely fix the source of the bad metadata,
the bad code causing the crash is already in the wild and who knows
how many repositories are impacted. So let's be more defensive
when accessing the file revision metadata.

from __future__ import absolute_import, print_function
from mercurial import (
    dispatch,
    error,
    ui as uimod,
)

testui = uimod.ui.load()

# disable the configuration registration warning
#
# the purpose of this test is to check the old behavior, not to validate the
# behavior from registered item. so we silent warning related to unregisted
# config.
testui.setconfig(b'devel', b'warn-config-unknown', False, b'test')
testui.setconfig(b'devel', b'all-warnings', False, b'test')

parsed = dispatch._parseconfig(testui, [
    b'values.string=string value',
    b'values.bool1=true',
    b'values.bool2=false',
    b'values.boolinvalid=foo',
    b'values.int1=42',
    b'values.int2=-42',
    b'values.intinvalid=foo',
    b'lists.list1=foo',
    b'lists.list2=foo bar baz',
    b'lists.list3=alice, bob',
    b'lists.list4=foo bar baz alice, bob',
    b'lists.list5=abc d"ef"g "hij def"',
    b'lists.list6="hello world", "how are you?"',
    b'lists.list7=Do"Not"Separate',
    b'lists.list8="Do"Separate',
    b'lists.list9="Do\\"NotSeparate"',
    b'lists.list10=string "with extraneous" quotation mark"',
    b'lists.list11=x, y',
    b'lists.list12="x", "y"',
    b'lists.list13=""" key = "x", "y" """',
    b'lists.list14=,,,,     ',
    b'lists.list15=" just with starting quotation',
    b'lists.list16="longer quotation" with "no ending quotation',
    b'lists.list17=this is \\" "not a quotation mark"',
    b'lists.list18=\n \n\nding\ndong',
    b'date.epoch=0 0',
    b'date.birth=2005-04-19T00:00:00',
    b'date.invalid=0'
    ])

print(repr(testui.configitems(b'values')))
print(repr(testui.configitems(b'lists')))
print("---")
print(repr(testui.config(b'values', b'string')))
print(repr(testui.config(b'values', b'bool1')))
print(repr(testui.config(b'values', b'bool2')))
print(repr(testui.config(b'values', b'unknown')))
print("---")
try:
    print(repr(testui.configbool(b'values', b'string')))
except error.ConfigError as inst:
    print(inst)
print(repr(testui.configbool(b'values', b'bool1')))
print(repr(testui.configbool(b'values', b'bool2')))
print(repr(testui.configbool(b'values', b'bool2', True)))
print(repr(testui.configbool(b'values', b'unknown')))
print(repr(testui.configbool(b'values', b'unknown', True)))
print("---")
print(repr(testui.configint(b'values', b'int1')))
print(repr(testui.configint(b'values', b'int2')))
print("---")
print(repr(testui.configlist(b'lists', b'list1')))
print(repr(testui.configlist(b'lists', b'list2')))
print(repr(testui.configlist(b'lists', b'list3')))
print(repr(testui.configlist(b'lists', b'list4')))
print(repr(testui.configlist(b'lists', b'list4', [b'foo'])))
print(repr(testui.configlist(b'lists', b'list5')))
print(repr(testui.configlist(b'lists', b'list6')))
print(repr(testui.configlist(b'lists', b'list7')))
print(repr(testui.configlist(b'lists', b'list8')))
print(repr(testui.configlist(b'lists', b'list9')))
print(repr(testui.configlist(b'lists', b'list10')))
print(repr(testui.configlist(b'lists', b'list11')))
print(repr(testui.configlist(b'lists', b'list12')))
print(repr(testui.configlist(b'lists', b'list13')))
print(repr(testui.configlist(b'lists', b'list14')))
print(repr(testui.configlist(b'lists', b'list15')))
print(repr(testui.configlist(b'lists', b'list16')))
print(repr(testui.configlist(b'lists', b'list17')))
print(repr(testui.configlist(b'lists', b'list18')))
print(repr(testui.configlist(b'lists', b'unknown')))
print(repr(testui.configlist(b'lists', b'unknown', b'')))
print(repr(testui.configlist(b'lists', b'unknown', b'foo')))
print(repr(testui.configlist(b'lists', b'unknown', [b'foo'])))
print(repr(testui.configlist(b'lists', b'unknown', b'foo bar')))
print(repr(testui.configlist(b'lists', b'unknown', b'foo, bar')))
print(repr(testui.configlist(b'lists', b'unknown', [b'foo bar'])))
print(repr(testui.configlist(b'lists', b'unknown', [b'foo', b'bar'])))
print("---")
print(repr(testui.configdate(b'date', b'epoch')))
print(repr(testui.configdate(b'date', b'birth')))

print(repr(testui.config(b'values', b'String')))

def function():
    pass

# values that aren't strings should work
testui.setconfig(b'hook', b'commit', function)
print(function == testui.config(b'hook', b'commit'))

# invalid values
try:
    testui.configbool(b'values', b'boolinvalid')
except error.ConfigError:
    print('boolinvalid')
try:
    testui.configint(b'values', b'intinvalid')
except error.ConfigError:
    print('intinvalid')
try:
    testui.configdate(b'date', b'invalid')
except error.ConfigError:
    print('dateinvalid')