def test_no_multiple_format_understanding(test_image):
""" for a given image file, walks the whole tree of Format objects.
If the file can be understood by multiple Format objects at the same
inheiritance level, it will return False, otherwise True."""
Registry.setup()
global any_understood, highest_level, found_a_repeat
any_understood = False
def recurse(format, image_file, level):
global any_understood, highest_level, found_a_repeat
for child in format._children:
try:
understood = child.understand(image_file)
except Exception as e:
understood = False
if understood:
any_understood = True
print ("level: %d" % (level), child.__name__)
found_a_repeat = level == highest_level
highest_level = level
recurse(child, image_file, level + 1)
level = 1
highest_level = 0
found_a_repeat = False
for format in Registry._formats:
try:
understood = format.understand(test_image)
except Exception as e:
understood = False
if understood:
any_understood = True
print ("level: %d" % (level), format.__name__)
found_a_repeat = level == highest_level
highest_level = 1
recurse(format, test_image, level + 1)
assert not found_a_repeat, "image file understood by multiple Format objects"
# It's a failure if nothing could understand this file
assert any_understood, "No formatter could be found"
from __future__ import absolute_import, division, print_function
from dxtbx.format.Registry import Registry
Registry.setup()
import sys
def print_class(classobj, filename=None, depth=1):
if filename is None:
print("% 5d" % depth, " " * depth, classobj.__name__)
else:
try:
ok = classobj.understand(filename)
except Exception:
ok = False
if ok:
print("% 5d" % depth, " " * depth, classobj.__name__)
else:
return
for child in classobj._children:
print_class(child, filename, depth + 1)
def show_registry(filename=None):
if filename is None:
extrabit = ""
else:
extrabit = " that understand image %s" % filename
print(
"Showing hierarchy of classes in the dxtbx registry%s. The root classes are shown with depth of 1, and subclasses are shown indented and with a higher depth number."
% extrabit)