test.unit.test_layer.TestWarping.test_get_config() - Code Metrics - Inspection of "WIP 640 refactor model layers" - DeepRegNet/DeepReg - Measure and Improve Code Quality continuously with Scrutinizer

Passed
Pull Request — main (#656)

by Yunguan
created 2021-01-31 18:28 UTC
test.unit.test_layer.TestWarping.test_get_config() A

↳ Parent: test.unit.test_layer
Complexity

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Total Lines	8
Code Lines	8
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Ratio	0 %
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Metric	Value
eloc	8
dl	0
loc	8
rs	10
c	0
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cc	1
nop	1
# coding=utf-8

"""
Tests for deepreg/model/layer
"""
from typing import Optional

import numpy as np
import pytest
import tensorflow as tf

import deepreg.model.layer as layer


@pytest.mark.parametrize(
    ("input_shape", "output_shape", "expected_shape"),
    [
        ((6, 7, 8), (12, 14, 16), (12, 14, 16)),
        ((6, 7, 8), (11, 13, 15), (11, 13, 15)),
        ((6, 7, 8), None, (12, 14, 16)),
    ],

)
def test_deconv3d(input_shape, output_shape: Optional[tuple], expected_shape: tuple):
    """
    Test output shapes and configs.

    :param input_shape: input shape for layer definition
    :param output_shape: output shape for layer definition
    :param expected_shape: expected output shape
    """
    batch_size = 5

    deconv3d = layer.Deconv3d(filters=3, strides=2, output_shape=output_shape)

    inputs = tf.ones(shape=(batch_size,) + input_shape + (1,))
    output = deconv3d(inputs)

    assert output.shape == (batch_size,) + expected_shape + (3,)

    config = deconv3d.get_config()
    assert config == dict(
        filters=3,
        output_shape=output_shape,
        kernel_size=3,
        strides=2,
        padding="same",
        name="deconv3d",
        trainable=True,
        dtype="float32",
    )


@pytest.mark.parametrize("layer_name", ["conv3d", "deconv3d"])
@pytest.mark.parametrize("norm_name", ["batch", "layer"])
@pytest.mark.parametrize("activation", ["relu", "elu"])
def test_norm_block(layer_name: str, norm_name: str, activation: str):
    """
    Test output shapes and configs.

    :param layer_name: layer_name for layer definition
    :param norm_name: norm_name for layer definition
    :param activation: activation for layer definition
    """
    input_size = (2, 3, 4, 5, 6)  # (batch, *shape, ch)
    norm_block = layer.NormBlock(
        layer_name=layer_name,
        norm_name=norm_name,
        activation=activation,
        filters=3,
        kernel_size=1,
        padding="same",
    )
    inputs = tf.ones(shape=input_size)
    outputs = norm_block(inputs)
    assert outputs.shape == input_size[:-1] + (3,)

    config = norm_block.get_config()
    assert config == dict(
        layer_name=layer_name,
        norm_name=norm_name,
        activation=activation,
        filters=3,
        kernel_size=1,
        padding="same",
        name="norm_block",
        trainable=True,
        dtype="float32",
    )


def test_downsample_resnet_block():
    """
    Test the layer.DownSampleResnetBlock class and its default attributes.
    """
    model = layer.DownSampleResnetBlock(8)

    assert model._pooling is True
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent

    assert isinstance(model._residual_block, layer.ResidualConv3dBlock)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert model._conv3d_block3 is None
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent

    model = layer.DownSampleResnetBlock(8, pooling=False)
    assert model._max_pool3d is None
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent


def test_upsample_resnet_block():
    """
    Test the layer.UpSampleResnetBlock class and its default attributes.
    """
    batch_size = 5
    channels = 4
    input_size = (32, 32, 16)
    output_size = (64, 64, 32)

    input_tensor_size = (batch_size,) + input_size + (channels,)
    skip_tensor_size = (batch_size,) + output_size + (channels // 2,)

    model = layer.UpSampleResnetBlock(8)
    model.build([input_tensor_size, skip_tensor_size])

    assert model._filters == 8
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert model._concat is False
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert isinstance(model._conv3d_block, layer.Conv3dBlock)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert isinstance(model._residual_block, layer.ResidualConv3dBlock)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert isinstance(model._deconv3d_block, layer.Deconv3dBlock)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent


class TestWarping:

    @pytest.mark.parametrize(
        ("moving_image_size", "fixed_image_size"),
        [
            ((1, 2, 3), (3, 4, 5)),
            ((1, 2, 3), (1, 2, 3)),
        ],

    )
    def test_forward(self, moving_image_size, fixed_image_size):
        batch_size = 2
        image = tf.ones(shape=(batch_size,) + moving_image_size)
        ddf = tf.ones(shape=(batch_size,) + fixed_image_size + (3,))
        outputs = layer.Warping(fixed_image_size=fixed_image_size)([ddf, image])
        assert outputs.shape == (batch_size, *fixed_image_size)

    def test_get_config(self):

        warping = layer.Warping(fixed_image_size=(2, 3, 4))
        config = warping.get_config()
        assert config == dict(
            fixed_image_size=(2, 3, 4),
            name="warping",
            trainable=True,
            dtype="float32",
        )


@pytest.mark.parametrize("layer_name", ["conv3d", "deconv3d"])
@pytest.mark.parametrize("norm_name", ["batch", "layer"])
@pytest.mark.parametrize("activation", ["relu", "elu"])
@pytest.mark.parametrize("num_layers", [2, 3])
def test_res_block(layer_name: str, norm_name: str, activation: str, num_layers: int):
    """
    Test output shapes and configs.

    :param layer_name: layer_name for layer definition
    :param norm_name: norm_name for layer definition
    :param activation: activation for layer definition
    :param num_layers: number of blocks in res block
    """
    ch = 3
    input_size = (2, 3, 4, 5, ch)  # (batch, *shape, ch)
    res_block = layer.ResidualBlock(
        layer_name=layer_name,
        num_layers=num_layers,
        norm_name=norm_name,
        activation=activation,
        filters=ch,
        kernel_size=3,
        padding="same",
    )
    inputs = tf.ones(shape=input_size)
    outputs = res_block(inputs)
    assert outputs.shape == input_size[:-1] + (3,)

    config = res_block.get_config()
    assert config == dict(
        layer_name=layer_name,
        num_layers=num_layers,
        norm_name=norm_name,
        activation=activation,
        filters=ch,
        kernel_size=3,
        padding="same",
        name="res_block",
        trainable=True,
        dtype="float32",
    )


def test_init_dvf():
    """
    Test the layer.IntDVF class, its default attributes and its call() method.
    """

    batch_size = 5
    fixed_image_size = (32, 32, 16)
    ndims = len(fixed_image_size)

    model = layer.IntDVF(fixed_image_size)

    assert isinstance(model._warping, layer.Warping)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert model._num_steps == 7
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent

    inputs = np.ones((batch_size, *fixed_image_size, ndims))
    output = model.call(inputs)
    assert all(
        x == y
        for x, y in zip((batch_size,) + fixed_image_size + (ndims,), output.shape)
    )


def test_additive_upsampling():
    """
    Test the layer.AdditiveUpSampling class and its default attributes.
    """
    channels = 8
    batch_size = 5
    output_size = (32, 32, 16)
    input_size = (24, 24, 16)

    # Test __init__()
    model = layer.AdditiveUpSampling(output_size)
    assert model._stride == 2
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert model._output_shape == output_size
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent

    # Test call()
    inputs = np.ones(
        (batch_size, input_size[0], input_size[1], input_size[2], channels)
    )
    output = model(inputs)
    assert all(
        x == y
        for x, y in zip((batch_size,) + output_size + (channels / 2,), output.shape)
    )

    # Test the exceptions
    model = layer.AdditiveUpSampling(output_size, stride=3)
    with pytest.raises(ValueError):
        model(inputs)


def test_local_net_residual3d_block():
    """
    Test the layer.LocalNetResidual3dBlock class's,
    default attributes and call() function.
    """

    # Test __init__()
    conv3d_block = layer.LocalNetResidual3dBlock(8)

    assert conv3d_block._conv3d.kernel_size == (3, 3, 3)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert conv3d_block._conv3d.strides == (1, 1, 1)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert conv3d_block._conv3d.padding == "same"
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert conv3d_block._conv3d.use_bias is False
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent


def test_local_net_upsample_resnet_block():
    """
    Test the layer.LocalNetUpSampleResnetBlock class,
    its default attributes and its call() function.
    """
    batch_size = 5
    channels = 4
    input_size = (32, 32, 16)
    output_size = (64, 64, 32)

    nonskip_tensor_size = (batch_size,) + input_size + (channels,)
    skip_tensor_size = (batch_size,) + output_size + (channels,)

    # Test __init__() and build()
    model = layer.LocalNetUpSampleResnetBlock(8)
    model.build([nonskip_tensor_size, skip_tensor_size])

    assert model._filters == 8
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert model._use_additive_upsampling is True
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent

    assert isinstance(model._deconv3d_block, layer.Deconv3dBlock)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert isinstance(model._additive_upsampling, layer.AdditiveUpSampling)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert isinstance(model._conv3d_block, layer.Conv3dBlock)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent
    assert isinstance(model._residual_block, layer.LocalNetResidual3dBlock)
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent


class TestResizeCPTransform:

    @pytest.mark.parametrize(
        "parameter,cp_spacing", [((8, 8, 8), 8), ((8, 24, 16), (8, 24, 16))]
    )

    def test_attributes(self, parameter, cp_spacing):
        model = layer.ResizeCPTransform(cp_spacing)

        if isinstance(cp_spacing, int):
            cp_spacing = [cp_spacing] * 3
        assert list(model.cp_spacing) == list(parameter)
        assert model.kernel_sigma == [0.44 * cp for cp in cp_spacing]

    @pytest.mark.parametrize(
        "input_size,output_size,cp_spacing",
        [
            ((1, 8, 8, 8, 3), (12, 8, 12), (8, 16, 8)),
            ((1, 8, 8, 8, 3), (12, 12, 12), 8),
        ],

    )
    def test_build(self, input_size, output_size, cp_spacing):
        model = layer.ResizeCPTransform(cp_spacing)
        model.build(input_size)

        assert [a == b for a, b, in zip(model._output_shape, output_size)]
class MyParent:
    def __init__(self):
        self._x = 1;
        self.y = 2;

class MyChild(MyParent):
    def some_method(self):
        return self._x    # Ok, since accessed from a child class

class AnotherClass:
    def some_method(self, instance_of_my_child):
        return instance_of_my_child._x   # Would be flagged as AnotherClass is not
                                         # a child class of MyParent

    @pytest.mark.parametrize(
        "input_size,output_size,cp_spacing",
        [
            ((1, 68, 68, 68, 3), (1, 12, 8, 12, 3), (8, 16, 8)),
            ((1, 68, 68, 68, 3), (1, 12, 12, 12, 3), 8),
        ],

    )
    def test_call(self, input_size, output_size, cp_spacing):
        model = layer.ResizeCPTransform(cp_spacing)
        model.build(input_size)

        input = tf.random.normal(shape=input_size, dtype=tf.float32)

        output = model(input)

        assert output.shape == output_size


class TestBSplines3DTransform:
    """
    Test the layer.BSplines3DTransform class,
    its default attributes and its call() function.
    """

    @pytest.mark.parametrize(
        "input_size,cp",
        [((1, 8, 8, 8, 3), 8), ((1, 8, 8, 8, 3), (8, 16, 12))],
    )

    def test_init(self, input_size, cp):
        model = layer.BSplines3DTransform(cp, input_size[1:-1])

        if isinstance(cp, int):
            cp = (cp, cp, cp)

        assert model.cp_spacing == cp

    @pytest.mark.parametrize(
        "input_size,cp",
        [((1, 8, 8, 8, 3), (8, 8, 8)), ((1, 8, 8, 8, 3), (8, 16, 12))],
    )

    def generate_filter_coefficients(self, cp_spacing):

        b = {
            0: lambda u: np.float64((1 - u) ** 3 / 6),
            1: lambda u: np.float64((3 * (u ** 3) - 6 * (u ** 2) + 4) / 6),
            2: lambda u: np.float64((-3 * (u ** 3) + 3 * (u ** 2) + 3 * u + 1) / 6),
            3: lambda u: np.float64(u ** 3 / 6),
        }

        filters = np.zeros(
            (
                4 * cp_spacing[0],
                4 * cp_spacing[1],
                4 * cp_spacing[2],
                3,
                3,
            ),
            dtype=np.float32,
        )

        for u in range(cp_spacing[0]):

            for v in range(cp_spacing[1]):
                for w in range(cp_spacing[2]):
                    for x in range(4):
                        for y in range(4):
                            for z in range(4):
                                for it_dim in range(3):
                                    u_norm = 1 - (u + 0.5) / cp_spacing[0]
                                    v_norm = 1 - (v + 0.5) / cp_spacing[1]
                                    w_norm = 1 - (w + 0.5) / cp_spacing[2]
                                    filters[
                                        x * cp_spacing[0] + u,
                                        y * cp_spacing[1] + v,
                                        z * cp_spacing[2] + w,
                                        it_dim,
                                        it_dim,
                                    ] = (
                                        b[x](u_norm) * b[y](v_norm) * b[z](w_norm)
                                    )
        return filters

    @pytest.mark.parametrize(
        "input_size,cp",
        [((1, 8, 8, 8, 3), (8, 8, 8)), ((1, 8, 8, 8, 3), (8, 16, 12))],
    )

    def test_build(self, input_size, cp):
        model = layer.BSplines3DTransform(cp, input_size[1:-1])

        model.build(input_size)
        assert model.filter.shape == (
            4 * cp[0],
            4 * cp[1],
            4 * cp[2],
            3,
            3,
        )

    @pytest.mark.parametrize(
        "input_size,cp",
        [((1, 8, 8, 8, 3), (8, 8, 8)), ((1, 8, 8, 8, 3), (8, 16, 12))],
    )

    def test_coefficients(self, input_size, cp):

        filters = self.generate_filter_coefficients(cp_spacing=cp)

        model = layer.BSplines3DTransform(cp, input_size[1:-1])
        model.build(input_size)

        assert np.allclose(filters, model.filter.numpy(), atol=1e-8)

    @pytest.mark.parametrize(
        "input_size,cp",
        [((1, 8, 8, 8, 3), (8, 8, 8)), ((1, 8, 8, 8, 3), (8, 16, 12))],
    )

    def test_interpolation(self, input_size, cp):
        model = layer.BSplines3DTransform(cp, input_size[1:-1])
        model.build(input_size)

        vol_shape = input_size[1:-1]
        num_cp = (
            [input_size[0]]
            + [int(np.ceil(isize / cpsize) + 3) for isize, cpsize in zip(vol_shape, cp)]
            + [input_size[-1]]
        )

        field = tf.random.normal(shape=num_cp, dtype=tf.float32)

        ddf = model.call(field)
        assert ddf.shape == input_size


class TestResize3d:

    @pytest.mark.parametrize(
        ("input_shape", "resize_shape", "output_shape"),
        [
            ((1, 2, 3), (3, 4, 5), (3, 4, 5)),
            ((2, 1, 2, 3), (3, 4, 5), (2, 3, 4, 5)),
            ((2, 1, 2, 3, 1), (3, 4, 5), (2, 3, 4, 5, 1)),
            ((2, 1, 2, 3, 6), (3, 4, 5), (2, 3, 4, 5, 6)),
            ((1, 2, 3), (1, 2, 3), (1, 2, 3)),
            ((2, 1, 2, 3), (1, 2, 3), (2, 1, 2, 3)),
            ((2, 1, 2, 3, 1), (1, 2, 3), (2, 1, 2, 3, 1)),
            ((2, 1, 2, 3, 6), (1, 2, 3), (2, 1, 2, 3, 6)),
        ],

    )
    def test_forward(self, input_shape, resize_shape, output_shape):
        inputs = tf.ones(shape=input_shape)
        outputs = layer.Resize3d(shape=resize_shape)(inputs)
        assert outputs.shape == output_shape

    def test_get_config(self):

        resize = layer.Resize3d(shape=(2, 3, 4))
        config = resize.get_config()
        assert config == dict(
            shape=(2, 3, 4),
            method=tf.image.ResizeMethod.BILINEAR,
            name="resize3d",
            trainable=True,
            dtype="float32",
        )

    def test_shape_err(self):

        with pytest.raises(AssertionError):
            layer.Resize3d(shape=(2, 3))

    def test_image_shape_err(self):

        with pytest.raises(ValueError) as err_info:
            resize = layer.Resize3d(shape=(2, 3, 4))
            resize(tf.ones(1, 1))
        assert "Resize3d takes input image of dimension 3 or 4 or 5" in str(
            err_info.value
        )

DeepRegNet / DeepReg

Pull Request — main (#656)

test.unit.test_layer.TestWarping.test_get_config() A

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