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# coding=utf-8
# Copyright 2023 HuggingFace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import tempfile
import unittest
from diffusers import (
DDIMScheduler,
DDPMScheduler,
DPMSolverMultistepScheduler,
EulerAncestralDiscreteScheduler,
EulerDiscreteScheduler,
PNDMScheduler,
logging,
)
from diffusers.configuration_utils import ConfigMixin, register_to_config
from diffusers.utils.testing_utils import CaptureLogger
class SampleObject(ConfigMixin):
config_name = "config.json"
@register_to_config
def __init__(
self,
a=2,
b=5,
c=(2, 5),
d="for diffusion",
e=[1, 3],
):
pass
class SampleObject2(ConfigMixin):
config_name = "config.json"
@register_to_config
def __init__(
self,
a=2,
b=5,
c=(2, 5),
d="for diffusion",
f=[1, 3],
):
pass
class SampleObject3(ConfigMixin):
config_name = "config.json"
@register_to_config
def __init__(
self,
a=2,
b=5,
c=(2, 5),
d="for diffusion",
e=[1, 3],
f=[1, 3],
):
pass
class ConfigTester(unittest.TestCase):
def test_load_not_from_mixin(self):
with self.assertRaises(ValueError):
ConfigMixin.load_config("dummy_path")
def test_register_to_config(self):
obj = SampleObject()
config = obj.config
assert config["a"] == 2
assert config["b"] == 5
assert config["c"] == (2, 5)
assert config["d"] == "for diffusion"
assert config["e"] == [1, 3]
# init ignore private arguments
obj = SampleObject(_name_or_path="lalala")
config = obj.config
assert config["a"] == 2
assert config["b"] == 5
assert config["c"] == (2, 5)
assert config["d"] == "for diffusion"
assert config["e"] == [1, 3]
# can override default
obj = SampleObject(c=6)
config = obj.config
assert config["a"] == 2
assert config["b"] == 5
assert config["c"] == 6
assert config["d"] == "for diffusion"
assert config["e"] == [1, 3]
# can use positional arguments.
obj = SampleObject(1, c=6)
config = obj.config
assert config["a"] == 1
assert config["b"] == 5
assert config["c"] == 6
assert config["d"] == "for diffusion"
assert config["e"] == [1, 3]
def test_save_load(self):
obj = SampleObject()
config = obj.config
assert config["a"] == 2
assert config["b"] == 5
assert config["c"] == (2, 5)
assert config["d"] == "for diffusion"
assert config["e"] == [1, 3]
with tempfile.TemporaryDirectory() as tmpdirname:
obj.save_config(tmpdirname)
new_obj = SampleObject.from_config(SampleObject.load_config(tmpdirname))
new_config = new_obj.config
# unfreeze configs
config = dict(config)
new_config = dict(new_config)
assert config.pop("c") == (2, 5) # instantiated as tuple
assert new_config.pop("c") == [2, 5] # saved & loaded as list because of json
assert config == new_config
def test_load_ddim_from_pndm(self):
logger = logging.get_logger("diffusers.configuration_utils")
with CaptureLogger(logger) as cap_logger:
ddim = DDIMScheduler.from_pretrained(
"hf-internal-testing/tiny-stable-diffusion-torch", subfolder="scheduler"
)
assert ddim.__class__ == DDIMScheduler
# no warning should be thrown
assert cap_logger.out == ""
def test_load_euler_from_pndm(self):
logger = logging.get_logger("diffusers.configuration_utils")
with CaptureLogger(logger) as cap_logger:
euler = EulerDiscreteScheduler.from_pretrained(
"hf-internal-testing/tiny-stable-diffusion-torch", subfolder="scheduler"
)
assert euler.__class__ == EulerDiscreteScheduler
# no warning should be thrown
assert cap_logger.out == ""
def test_load_euler_ancestral_from_pndm(self):
logger = logging.get_logger("diffusers.configuration_utils")
with CaptureLogger(logger) as cap_logger:
euler = EulerAncestralDiscreteScheduler.from_pretrained(
"hf-internal-testing/tiny-stable-diffusion-torch", subfolder="scheduler"
)
assert euler.__class__ == EulerAncestralDiscreteScheduler
# no warning should be thrown
assert cap_logger.out == ""
def test_load_pndm(self):
logger = logging.get_logger("diffusers.configuration_utils")
with CaptureLogger(logger) as cap_logger:
pndm = PNDMScheduler.from_pretrained(
"hf-internal-testing/tiny-stable-diffusion-torch", subfolder="scheduler"
)
assert pndm.__class__ == PNDMScheduler
# no warning should be thrown
assert cap_logger.out == ""
def test_overwrite_config_on_load(self):
logger = logging.get_logger("diffusers.configuration_utils")
with CaptureLogger(logger) as cap_logger:
ddpm = DDPMScheduler.from_pretrained(
"hf-internal-testing/tiny-stable-diffusion-torch",
subfolder="scheduler",
prediction_type="sample",
beta_end=8,
)
with CaptureLogger(logger) as cap_logger_2:
ddpm_2 = DDPMScheduler.from_pretrained("google/ddpm-celebahq-256", beta_start=88)
assert ddpm.__class__ == DDPMScheduler
assert ddpm.config.prediction_type == "sample"
assert ddpm.config.beta_end == 8
assert ddpm_2.config.beta_start == 88
# no warning should be thrown
assert cap_logger.out == ""
assert cap_logger_2.out == ""
def test_load_dpmsolver(self):
logger = logging.get_logger("diffusers.configuration_utils")
with CaptureLogger(logger) as cap_logger:
dpm = DPMSolverMultistepScheduler.from_pretrained(
"hf-internal-testing/tiny-stable-diffusion-torch", subfolder="scheduler"
)
assert dpm.__class__ == DPMSolverMultistepScheduler
# no warning should be thrown
assert cap_logger.out == ""
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