!13 Add a fuzzing test framework for DNN and image transform methods

Merge pull request !13 from ZhidanLiu/master

example/mnist_demo/lenet5_mnist_fuzzing.py

+# Copyright 2019 Huawei Technologies Co., Ltd
+#
+# 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 sys
+import numpy as np
+
+from mindspore import Model
+from mindspore import context
+from mindspore.train.serialization import load_checkpoint, load_param_into_net
+from mindspore.nn import SoftmaxCrossEntropyWithLogits
+
+from mindarmour.attacks.gradient_method import FastGradientSignMethod
+from mindarmour.utils.logger import LogUtil
+from mindarmour.fuzzing.model_coverage_metrics import ModelCoverageMetrics
+from mindarmour.fuzzing.fuzzing import Fuzzing
+from lenet5_net import LeNet5
+
+sys.path.append("..")
+from data_processing import generate_mnist_dataset
+
+LOGGER = LogUtil.get_instance()
+TAG = 'Fuzz_test'
+LOGGER.set_level('INFO')
+
+
+def test_lenet_mnist_fuzzing():
+    context.set_context(mode=context.GRAPH_MODE, device_target="CPU")
+    # upload trained network
+    ckpt_name = './trained_ckpt_file/checkpoint_lenet-10_1875.ckpt'
+    net = LeNet5()
+    load_dict = load_checkpoint(ckpt_name)
+    load_param_into_net(net, load_dict)
+    model = Model(net)
+
+    # get training data
+    data_list = "./MNIST_datasets/train"
+    batch_size = 32
+    ds = generate_mnist_dataset(data_list, batch_size, sparse=True)
+    train_images = []
+    for data in ds.create_tuple_iterator():
+        images = data[0].astype(np.float32)
+        train_images.append(images)
+    train_images = np.concatenate(train_images, axis=0)
+
+    # initialize fuzz test with training dataset
+    model_coverage_test = ModelCoverageMetrics(model, 1000, 10, train_images)
+
+    # fuzz test with original test data
+    # get test data
+    data_list = "./MNIST_datasets/test"
+    batch_size = 32
+    ds = generate_mnist_dataset(data_list, batch_size, sparse=True)
+    test_images = []
+    test_labels = []
+    for data in ds.create_tuple_iterator():
+        images = data[0].astype(np.float32)
+        labels = data[1]
+        test_images.append(images)
+        test_labels.append(labels)
+    test_images = np.concatenate(test_images, axis=0)
+    test_labels = np.concatenate(test_labels, axis=0)
+    initial_seeds = []
+
+    # make initial seeds
+    for img, label in zip(test_images, test_labels):
+        initial_seeds.append([img, label, 0])
+
+    initial_seeds = initial_seeds[:100]
+    model_coverage_test.test_adequacy_coverage_calculate(np.array(test_images[:100]).astype(np.float32))
+    LOGGER.info(TAG, 'KMNC of this test is : %s', model_coverage_test.get_kmnc())
+
+    model_fuzz_test = Fuzzing(initial_seeds, model, train_images, 20)
+    failed_tests = model_fuzz_test.fuzzing()
+    model_coverage_test.test_adequacy_coverage_calculate(np.array(failed_tests).astype(np.float32))
+    LOGGER.info(TAG, 'KMNC of this test is : %s', model_coverage_test.get_kmnc())
+
+
+if __name__ == '__main__':
+    test_lenet_mnist_fuzzing()

mindarmour/fuzzing/__init__.py

+"""
+This module includes various metrics to fuzzing the test of DNN.
+"""
+from .fuzzing import Fuzzing
 from .model_coverage_metrics import ModelCoverageMetrics
 
-__all__ = ['ModelCoverageMetrics']
\ No newline at end of file
+__all__ = ['Fuzzing',
+           'ModelCoverageMetrics']

mindarmour/fuzzing/fuzzing.py

+# Copyright 2019 Huawei Technologies Co., Ltd
+#
+# 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.
+"""
+Fuzzing.
+"""
+import numpy as np
+from random import choice
+
+from mindspore import Tensor
+from mindspore import Model
+
+from mindarmour.fuzzing.model_coverage_metrics import ModelCoverageMetrics
+from mindarmour.utils.image_transform import Contrast, Brightness, Blur, Noise, \
+    Translate, Scale, Shear, Rotate
+from mindarmour.utils._check_param import check_model, check_numpy_param, \
+    check_int_positive
+
+
+class Fuzzing:
+    """
+    Fuzzing test framework for deep neural networks.
+
+    Reference: `DeepHunter: A Coverage-Guided Fuzz Testing Framework for Deep
+    Neural Networks <https://dl.acm.org/doi/10.1145/3293882.3330579>`_
+
+    Args:
+        initial_seeds (list): Initial fuzzing seed, format: [[image, label, 0],
+            [image, label, 0], ...].
+        target_model (Model): Target fuzz model.
+        train_dataset (numpy.ndarray): Training dataset used for determine
+            the neurons' output boundaries.
+        const_K (int): The number of mutate tests for a seed.
+        mode (str): Image mode used in image transform, 'L' means grey graph.
+            Default: 'L'.
+    """
+
+    def __init__(self, initial_seeds, target_model, train_dataset, const_K,
+                 mode='L', max_seed_num=1000):
+        self.initial_seeds = initial_seeds
+        self.target_model = check_model('model', target_model, Model)
+        self.train_dataset = check_numpy_param('train_dataset', train_dataset)
+        self.K = check_int_positive('const_k', const_K)
+        self.mode = mode
+        self.max_seed_num = check_int_positive('max_seed_num', max_seed_num)
+        self.coverage_metrics = ModelCoverageMetrics(target_model, 1000, 10,
+                                                     train_dataset)
+
+    def _image_value_expand(self, image):
+        return image*255
+
+    def _image_value_compress(self, image):
+        return image / 255
+
+    def _metamorphic_mutate(self, seed, try_num=50):
+        if self.mode == 'L':
+            seed = seed[0]
+        info = [seed, seed]
+        mutate_tests = []
+        affine_trans = ['Contrast', 'Brightness', 'Blur', 'Noise']
+        pixel_value_trans = ['Translate', 'Scale', 'Shear', 'Rotate']
+        strages = {'Contrast': Contrast, 'Brightness': Brightness, 'Blur': Blur,
+                   'Noise': Noise,
+                   'Translate': Translate, 'Scale': Scale, 'Shear': Shear,
+                   'Rotate': Rotate}
+        for _ in range(self.K):
+            for _ in range(try_num):
+                if (info[0] == info[1]).all():
+                    trans_strage = self._random_pick_mutate(affine_trans,
+                                                            pixel_value_trans)
+                else:
+                    trans_strage = self._random_pick_mutate(affine_trans, [])
+                transform = strages[trans_strage](
+                    self._image_value_expand(seed), self.mode)
+                transform.random_param()
+                mutate_test = transform.transform()
+                mutate_test = np.expand_dims(
+                    self._image_value_compress(mutate_test), 0)
+
+                if self._is_trans_valid(seed, mutate_test):
+                    if trans_strage in affine_trans:
+                        info[1] = mutate_test
+                    mutate_tests.append(mutate_test)
+            if len(mutate_tests) == 0:
+                mutate_tests.append(seed)
+            return np.array(mutate_tests)
+
+    def fuzzing(self, coverage_metric='KMNC'):
+        """
+        Fuzzing tests for deep neural networks.
+
+        Args:
+            coverage_metric (str): Model coverage metric of neural networks.
+                Default: 'KMNC'.
+
+        Returns:
+            list, mutated tests mis-predicted by target dnn model.
+        """
+        seed = self._select_next()
+        failed_tests = []
+        seed_num = 0
+        while len(seed) > 0 and seed_num < self.max_seed_num:
+            mutate_tests = self._metamorphic_mutate(seed[0])
+            coverages, results = self._run(mutate_tests, coverage_metric)
+            coverage_gains = self._coverage_gains(coverages)
+            for mutate, cov, res in zip(mutate_tests, coverage_gains, results):
+                if np.argmax(seed[1]) != np.argmax(res):
+                    failed_tests.append(mutate)
+                    continue
+                if cov > 0:
+                    self.initial_seeds.append([mutate, seed[1], 0])
+            seed = self._select_next()
+            seed_num += 1
+
+        return failed_tests
+
+    def _coverage_gains(self, coverages):
+        gains = [0] + coverages[:-1]
+        gains = np.array(coverages) - np.array(gains)
+        return gains
+
+    def _run(self, mutate_tests, coverage_metric="KNMC"):
+        coverages = []
+        result = self.target_model.predict(
+            Tensor(mutate_tests.astype(np.float32)))
+        result = result.asnumpy()
+        for index in range(len(mutate_tests)):
+            mutate = np.expand_dims(mutate_tests[index], 0)
+            self.coverage_metrics.test_adequacy_coverage_calculate(
+                mutate.astype(np.float32), batch_size=1)
+            if coverage_metric == "KMNC":
+                coverages.append(self.coverage_metrics.get_kmnc())
+
+        return coverages, result
+
+    def _select_next(self):
+        seed = choice(self.initial_seeds)
+        return seed
+
+    def _random_pick_mutate(self, affine_trans_list, pixel_value_trans_list):
+        strage = choice(affine_trans_list + pixel_value_trans_list)
+        return strage
+
+    def _is_trans_valid(self, seed, mutate_test):
+        is_valid = False
+        alpha = 0.02
+        beta = 0.2
+        diff = np.array(seed - mutate_test).flatten()
+        size = np.shape(diff)[0]
+        L0 = np.linalg.norm(diff, ord=0)
+        Linf = np.linalg.norm(diff, ord=np.inf)
+        if L0 > alpha*size:
+            if Linf < 256:
+                is_valid = True
+        else:
+            if Linf < beta*255:
+                is_valid = True
+
+        return is_valid

mindarmour/fuzzing/model_coverage_metrics.py

@@ -76,6 +76,11 @@ class ModelCoverageMetrics:
             upper_compare_array = np.concatenate(
                 [output, np.array([self._upper_bounds])], axis=0)
             self._upper_bounds = np.max(upper_compare_array, axis=0)
+        if batches == 0:
+            output = self._model.predict(Tensor(train_dataset)).asnumpy()
+            self._lower_bounds = np.min(output, axis=0)
+            self._upper_bounds = np.max(output, axis=0)
+            output_mat.append(output)
         self._var = np.std(np.concatenate(np.array(output_mat), axis=0),
                            axis=0)
 

mindarmour/utils/image_transform.py

+# Copyright 2019 Huawei Technologies Co., Ltd
+#
+# 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.
+"""
+Image transform
+"""
+import numpy as np
+from PIL import Image, ImageEnhance, ImageFilter
+import random
+
+from mindarmour.utils._check_param import check_numpy_param
+
+class ImageTransform:
+    """
+    The abstract base class for all image transform classes.
+    """
+
+    def __init__(self):
+        pass
+
+    def random_param(self):
+        pass
+
+    def transform(self):
+        pass
+
+
+class Contrast(ImageTransform):
+    """
+    Contrast of an image.
+
+    Args:
+        image (numpy.ndarray): Original image to be transformed.
+        mode (str): Mode used in PIL, here mode must be in ['L', 'RGB'],
+            'L' means grey image.
+    """
+
+    def __init__(self, image, mode):
+        super(Contrast, self).__init__()
+        self.image = check_numpy_param('image', image)
+        self.mode = mode
+
+    def random_param(self):
+        """ Random generate parameters. """
+        self.factor = random.uniform(-10, 10)
+
+    def transform(self):
+        img = Image.fromarray(self.image, self.mode)
+        img_contrast = ImageEnhance.Contrast(img)
+        trans_image = img_contrast.enhance(self.factor)
+        trans_image = np.array(trans_image)
+        return trans_image
+
+
+class Brightness(ImageTransform):
+    """
+    Brightness of an image.
+
+    Args:
+        image (numpy.ndarray): Original image to be transformed.
+        mode (str): Mode used in PIL, here mode must be in ['L', 'RGB'],
+            'L' means grey image.
+    """
+
+    def __init__(self, image, mode):
+        super(Brightness, self).__init__()
+        self.image = check_numpy_param('image', image)
+        self.mode = mode
+
+    def random_param(self):
+        """ Random generate parameters. """
+        self.factor = random.uniform(-10, 10)
+
+    def transform(self):
+        img = Image.fromarray(self.image, self.mode)
+        img_contrast = ImageEnhance.Brightness(img)
+        trans_image = img_contrast.enhance(self.factor)
+        trans_image = np.array(trans_image)
+        return trans_image
+
+
+class Blur(ImageTransform):
+    """
+    GaussianBlur of an image.
+
+    Args:
+        image (numpy.ndarray): Original image to be transformed.
+        mode (str): Mode used in PIL, here mode must be in ['L', 'RGB'],
+            'L' means grey image.
+    """
+
+    def __init__(self, image, mode):
+        super(Blur, self).__init__()
+        self.image = check_numpy_param('image', image)
+        self.mode = mode
+
+    def random_param(self):
+        """ Random generate parameters. """
+        self.radius = random.uniform(-10, 10)
+
+    def transform(self):
+        """ Transform the image. """
+        img = Image.fromarray(self.image, self.mode)
+        trans_image = img.filter(ImageFilter.GaussianBlur(radius=self.radius))
+        trans_image = np.array(trans_image)
+        return trans_image
+
+
+class Noise(ImageTransform):
+    """
+    Add noise of an image.
+
+    Args:
+        image (numpy.ndarray): Original image to be transformed.
+        mode (str): Mode used in PIL, here mode must be in ['L', 'RGB'],
+            'L' means grey image.
+    """
+
+    def __init__(self, image, mode):
+        super(Noise, self).__init__()
+        self.image = check_numpy_param('image', image)
+        self.mode = mode
+
+    def random_param(self):
+        """ random generate parameters """
+        self.factor = random.uniform(-1, 1)
+
+    def transform(self):
+        """ Random generate parameters. """
+        noise = np.random.uniform(low=-1, high=1, size=self.image.shape)
+        trans_image = np.copy(self.image)
+        trans_image[noise < -self.factor] = 0
+        trans_image[noise > self.factor] = 255
+        trans_image = np.array(trans_image)
+        return trans_image
+
+
+class Translate(ImageTransform):
+    """
+    Translate an image.
+
+    Args:
+        image (numpy.ndarray): Original image to be transformed.
+        mode (str): Mode used in PIL, here mode must be in ['L', 'RGB'],
+            'L' means grey image.
+    """
+
+    def __init__(self, image, mode):
+        super(Translate, self).__init__()
+        self.image = check_numpy_param('image', image)
+        self.mode = mode
+
+    def random_param(self):
+        """ Random generate parameters. """
+        image_shape = np.shape(self.image)
+        self.x_bias = random.uniform(0, image_shape[0])
+        self.y_bias = random.uniform(0, image_shape[1])
+
+    def transform(self):
+        """ Transform the image. """
+        img = Image.fromarray(self.image, self.mode)
+        trans_image = img.transform(img.size, Image.AFFINE,
+                                    (1, 0, self.x_bias, 0, 1, self.y_bias))
+        trans_image = np.array(trans_image)
+        return trans_image
+
+
+class Scale(ImageTransform):
+    """
+    Scale an image.
+
+    Args:
+        image(numpy.ndarray): Original image to be transformed.
+        mode(str): Mode used in PIL, here mode must be in ['L', 'RGB'],
+            'L' means grey image.
+    """
+
+    def __init__(self, image, mode):
+        super(Scale, self).__init__()
+        self.image = check_numpy_param('image', image)
+        self.mode = mode
+
+    def random_param(self):
+        """ Random generate parameters. """
+        self.factor_x = random.uniform(0, 1)
+        self.factor_y = random.uniform(0, 1)
+
+    def transform(self):
+        """ Transform the image. """
+        img = Image.fromarray(self.image, self.mode)
+        trans_image = img.transform(img.size, Image.AFFINE,
+                                    (self.factor_x, 0, 0, 0, self.factor_y, 0))
+        trans_image = np.array(trans_image)
+        return trans_image
+
+
+class Shear(ImageTransform):
+    """
+    Shear an image.
+
+    Args:
+        image (numpy.ndarray): Original image to be transformed.
+        mode (str): Mode used in PIL, here mode must be in ['L', 'RGB'],
+            'L' means grey image.
+    """
+
+    def __init__(self, image, mode):
+        super(Shear, self).__init__()
+        self.image = check_numpy_param('image', image)
+        self.mode = mode
+
+    def random_param(self):
+        """ Random generate parameters. """
+        self.factor = random.uniform(0, 1)
+
+    def transform(self):
+        """ Transform the image. """
+        img = Image.fromarray(self.image, self.mode)
+        if np.random.random() > 0.5:
+            level = -self.factor
+        else:
+            level = self.factor
+        if np.random.random() > 0.5:
+            trans_image = img.transform(img.size, Image.AFFINE,
+                                        (1, level, 0, 0, 1, 0))
+        else:
+            trans_image = img.transform(img.size, Image.AFFINE,
+                                        (1, 0, 0, level, 1, 0))
+        trans_image = np.array(trans_image, dtype=np.float)
+        return trans_image
+
+
+class Rotate(ImageTransform):
+    """
+    Rotate an image.
+
+    Args:
+        image (numpy.ndarray): Original image to be transformed.
+        mode (str): Mode used in PIL, here mode must be in ['L', 'RGB'],
+            'L' means grey image.
+    """
+
+    def __init__(self, image, mode):
+        super(Rotate, self).__init__()
+        self.image = check_numpy_param('image', image)
+        self.mode = mode
+
+    def random_param(self):
+        """ Random generate parameters. """
+        self.angle = random.uniform(0, 360)
+
+    def transform(self):
+        """ Transform the image. """
+        img = Image.fromarray(self.image, self.mode)
+        trans_image = img.rotate(self.angle)
+        trans_image = np.array(trans_image)
+        return trans_image

tests/ut/python/fuzzing/test_fuzzing.py

+# Copyright 2019 Huawei Technologies Co., Ltd
+#
+# 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.
+"""
+Model-fuzz coverage test.
+"""
+import numpy as np
+import pytest
+import sys
+
+from mindspore.train import Model
+from mindspore import nn
+from mindspore.ops import operations as P
+from mindspore import context
+from mindspore.common.initializer import TruncatedNormal
+
+from mindarmour.utils.logger import LogUtil
+from mindarmour.fuzzing.model_coverage_metrics import ModelCoverageMetrics
+from mindarmour.fuzzing.fuzzing import Fuzzing
+
+
+LOGGER = LogUtil.get_instance()
+TAG = 'Fuzzing test'
+LOGGER.set_level('INFO')
+
+
+def conv(in_channels, out_channels, kernel_size, stride=1, padding=0):
+    weight = weight_variable()
+    return nn.Conv2d(in_channels, out_channels,
+                     kernel_size=kernel_size, stride=stride, padding=padding,
+                     weight_init=weight, has_bias=False, pad_mode="valid")
+
+
+def fc_with_initialize(input_channels, out_channels):
+    weight = weight_variable()
+    bias = weight_variable()
+    return nn.Dense(input_channels, out_channels, weight, bias)
+
+
+def weight_variable():
+    return TruncatedNormal(0.02)
+
+
+class Net(nn.Cell):
+    """
+    Lenet network
+    """
+    def __init__(self):
+        super(Net, self).__init__()
+        self.conv1 = conv(1, 6, 5)
+        self.conv2 = conv(6, 16, 5)
+        self.fc1 = fc_with_initialize(16*5*5, 120)
+        self.fc2 = fc_with_initialize(120, 84)
+        self.fc3 = fc_with_initialize(84, 10)
+        self.relu = nn.ReLU()
+        self.max_pool2d = nn.MaxPool2d(kernel_size=2, stride=2)
+        self.reshape = P.Reshape()
+
+    def construct(self, x):
+        x = self.conv1(x)
+        x = self.relu(x)
+        x = self.max_pool2d(x)
+        x = self.conv2(x)
+        x = self.relu(x)
+        x = self.max_pool2d(x)
+        x = self.reshape(x, (-1, 16*5*5))
+        x = self.fc1(x)
+        x = self.relu(x)
+        x = self.fc2(x)
+        x = self.relu(x)
+        x = self.fc3(x)
+        return x
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_ascend_training
+@pytest.mark.platform_arm_ascend_training
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_fuzzing_ascend():
+    context.set_context(mode=context.GRAPH_MODE, device_target="Ascend")
+    # load network
+    net = Net()
+    model = Model(net)
+    batch_size = 8
+    num_classe = 10
+
+    # initialize fuzz test with training dataset
+    training_data = np.random.rand(32, 1, 32, 32).astype(np.float32)
+    model_coverage_test = ModelCoverageMetrics(model, 1000, 10, training_data)
+
+    # fuzz test with original test data
+    # get test data
+    test_data = np.random.rand(batch_size, 1, 32, 32).astype(np.float32)
+    test_labels = np.random.randint(num_classe, size=batch_size).astype(np.int32)
+    test_labels = (np.eye(num_classe)[test_labels]).astype(np.float32)
+
+    initial_seeds = []
+    for img, label in zip(test_data, test_labels):
+        initial_seeds.append([img, label, 0])
+    model_coverage_test.test_adequacy_coverage_calculate(
+        np.array(test_data).astype(np.float32))
+    LOGGER.info(TAG, 'KMNC of this test is : %s',
+                model_coverage_test.get_kmnc())
+
+    model_fuzz_test = Fuzzing(initial_seeds, model, training_data, 5,
+                              max_seed_num=10)
+    failed_tests = model_fuzz_test.fuzzing()
+    model_coverage_test.test_adequacy_coverage_calculate(
+        np.array(failed_tests).astype(np.float32))
+    LOGGER.info(TAG, 'KMNC of this test is : %s',
+                model_coverage_test.get_kmnc())
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_fuzzing_ascend():
+    context.set_context(mode=context.GRAPH_MODE, device_target="CPU")
+    # load network
+    net = Net()
+    model = Model(net)
+    batch_size = 8
+    num_classe = 10
+
+    # initialize fuzz test with training dataset
+    training_data = np.random.rand(32, 1, 32, 32).astype(np.float32)
+    model_coverage_test = ModelCoverageMetrics(model, 1000, 10, training_data)
+
+    # fuzz test with original test data
+    # get test data
+    test_data = np.random.rand(batch_size, 1, 32, 32).astype(np.float32)
+    test_labels = np.random.randint(num_classe, size=batch_size).astype(np.int32)
+    test_labels = (np.eye(num_classe)[test_labels]).astype(np.float32)
+
+    initial_seeds = []
+    for img, label in zip(test_data, test_labels):
+        initial_seeds.append([img, label, 0])
+    model_coverage_test.test_adequacy_coverage_calculate(
+        np.array(test_data).astype(np.float32))
+    LOGGER.info(TAG, 'KMNC of this test is : %s',
+                model_coverage_test.get_kmnc())
+
+    model_fuzz_test = Fuzzing(initial_seeds, model, training_data, 5,
+                              max_seed_num=10)
+    failed_tests = model_fuzz_test.fuzzing()
+    model_coverage_test.test_adequacy_coverage_calculate(
+        np.array(failed_tests).astype(np.float32))
+    LOGGER.info(TAG, 'KMNC of this test is : %s',
+                model_coverage_test.get_kmnc())

tests/ut/python/utils/test_image_transform.py

+# Copyright 2019 Huawei Technologies Co., Ltd
+#
+# 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.
+"""
+Image transform test.
+"""
+import numpy as np
+import pytest
+
+from mindarmour.utils.logger import LogUtil
+from mindarmour.utils.image_transform import Contrast, Brightness, Blur, Noise, \
+    Translate, Scale, Shear, Rotate
+
+LOGGER = LogUtil.get_instance()
+TAG = 'Image transform test'
+LOGGER.set_level('INFO')
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_contrast():
+    image = (np.random.rand(32, 32)*255).astype(np.float32)
+    mode = 'L'
+    trans = Contrast(image, mode)
+    trans.random_param()
+    trans_image = trans.transform()
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_brightness():
+    image = (np.random.rand(32, 32)*255).astype(np.float32)
+    mode = 'L'
+    trans = Brightness(image, mode)
+    trans.random_param()
+    trans_image = trans.transform()
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.platform_x86_ascend_training
+@pytest.mark.platform_arm_ascend_training
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_blur():
+    image = (np.random.rand(32, 32)*255).astype(np.float32)
+    mode = 'L'
+    trans = Blur(image, mode)
+    trans.random_param()
+    trans_image = trans.transform()
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.platform_x86_ascend_training
+@pytest.mark.platform_arm_ascend_training
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_noise():
+    image = (np.random.rand(32, 32)*255).astype(np.float32)
+    mode = 'L'
+    trans = Noise(image, mode)
+    trans.random_param()
+    trans_image = trans.transform()
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.platform_x86_ascend_training
+@pytest.mark.platform_arm_ascend_training
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_translate():
+    image = (np.random.rand(32, 32)*255).astype(np.float32)
+    mode = 'L'
+    trans = Translate(image, mode)
+    trans.random_param()
+    trans_image = trans.transform()
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.platform_x86_ascend_training
+@pytest.mark.platform_arm_ascend_training
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_shear():
+    image = (np.random.rand(32, 32)*255).astype(np.float32)
+    mode = 'L'
+    trans = Shear(image, mode)
+    trans.random_param()
+    trans_image = trans.transform()
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.platform_x86_ascend_training
+@pytest.mark.platform_arm_ascend_training
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_scale():
+    image = (np.random.rand(32, 32)*255).astype(np.float32)
+    mode = 'L'
+    trans = Scale(image, mode)
+    trans.random_param()
+    trans_image = trans.transform()
+
+
+@pytest.mark.level0
+@pytest.mark.platform_x86_cpu
+@pytest.mark.platform_x86_ascend_training
+@pytest.mark.platform_arm_ascend_training
+@pytest.mark.env_onecard
+@pytest.mark.component_mindarmour
+def test_rotate():
+    image = (np.random.rand(32, 32)*255).astype(np.float32)
+    mode = 'L'
+    trans = Rotate(image, mode)
+    trans.random_param()
+    trans_image = trans.transform()
+
+