initial

.gitignore

@@ -0,0 +1,4 @@
+.idea
+/build/
+/install/
+/log/

Dockerfile

@@ -0,0 +1,26 @@
+# Use ROS 2 Humble Hawksbill base image
+FROM osrf/ros:humble-desktop-full
+
+# Update and install dependencies
+RUN apt-get update && apt-get install -y \
+    python3-colcon-common-extensions \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Create a workspace
+WORKDIR /ros2_ws
+
+# Copy your ROS 2 package into the workspace
+COPY ./ros2_ws/src /ros2_ws/src
+
+# Build your package
+RUN . /opt/ros/humble/setup.sh && \
+    colcon build
+
+RUN echo "source /opt/ros/humble/setup.bash" >> ~/.bashrc
+
+
+# Source the workspace
+CMD ["/bin/bash"]

docker-compose.yaml

@@ -0,0 +1,14 @@
+version: '3.8'
+services:
+  ros2:
+    build: ..
+    volumes:
+      - ./ros2_ws/src:/ros2_ws/src
+    networks:
+      - ros_network
+    tty: true
+    stdin_open: true
+
+networks:
+  ros_network:
+    driver: bridge

requirements.txt

@@ -0,0 +1 @@
+numpy==1.26.4

src/InteractionMetrics/InteractionMetrics/Improvement.py

@@ -0,0 +1,21 @@
+class ImprovementQuery:
+    def __init__(self, threshold, period, last_query, rewards):
+        self.threshold = threshold
+        self.period = period
+        self.last_query = last_query
+        self.rewards = rewards
+
+    def query(self):
+        if self.rewards.shape[0] < self.period + 1:
+            return False
+
+        elif self.rewards.shape[0] < self.last_query + self.period + 1:
+            return False
+
+        else:
+            first = self.rewards[-self.period-1]
+            last = self.rewards[-1]
+
+            slope = (last - first) / self.period
+
+            return slope < self.threshold

src/InteractionMetrics/InteractionMetrics/MaxAcquisition.py

@@ -0,0 +1,55 @@
+import numpy as np
+from scipy.stats import norm
+
+
+class MaxAcqQuery:
+    def __init__(self, threshold, gp,
+                 nr_test, nr_weights,
+                 lower=-1.0, upper=1.0,
+                 acq="Expected Improvement",
+                 **kwargs):
+        self.threshold = threshold
+        self.gp = gp
+        self.nr_test = nr_test
+        self.nr_weights = nr_weights
+        self.lower = lower
+        self.upper = upper
+        self.acq = acq
+
+        self.seed = kwargs.get('seed', None)
+        self.kappa = kwargs.get('kappa', 2.576)
+        self.beta = kwargs.get('beta', 1.2)
+        self.X = kwargs.get('X', None)
+
+        self.rng = np.random.default_rng(self.seed)
+
+    def query(self):
+        X_test = self.rng.uniform(self.lower, self.upper, (self.nr_test, self.nr_weights))
+        max_acq = 0
+
+        if self.acq == "Expected Improvement":
+            if self.X is None:
+                raise ValueError
+            y_hat = self.gp.predict(self.X)
+            best_y = max(y_hat)
+            mu, sigma = self.gp.predict(X_test, return_std=True)
+            z = (mu - best_y - self.kappa) / sigma
+            ei = (mu - best_y - self.kappa) * norm.cdf(z) + sigma * norm.pdf(z)
+            max_acq = np.max(ei)
+
+        if self.acq == "Probability of Improvement":
+            if self.X is None:
+                raise ValueError
+            y_hat = self.gp.predict(self.X)
+            best_y = max(y_hat)
+            mu, sigma = self.gp.predict(X_test, return_std=True)
+            z = (mu - best_y - self.kappa) / sigma
+            pi = norm.cdf(z)
+            max_acq = np.max(pi)
+
+        if self.acq == "Upper Confidence Bound":
+            mu, sigma = self.gp.predict(X_test, return_std=True)
+            cb = mu + self.beta * sigma
+            max_acq = np.max(cb)
+
+        return max_acq > self.threshold

src/InteractionMetrics/InteractionMetrics/Random.py

@@ -0,0 +1,11 @@
+import numpy as np
+
+
+class RandomQuery:
+    def __init__(self, threshold):
+        self.threshold = threshold
+        self.random = np.random.uniform(0.0, 1.0, 1)
+
+    def query(self):
+        return self.random > self.threshold
+    

src/InteractionMetrics/InteractionMetrics/Regular.py

@@ -0,0 +1,12 @@
+class RegularQuery:
+    def __init__(self, regular, episode):
+        self.regular = int(regular)
+        self.counter = episode
+
+    def query(self):
+
+        if self.counter % self.regular == 0 and self.counter != 0:
+            return True
+
+        else:
+            return False

src/InteractionMetrics/package.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>InteractionMetrics</name>
+  <version>0.0.0</version>
+  <description>TODO: Package description</description>
+  <maintainer email="nikolaus.feith@unileoben.ac.at">niko</maintainer>
+  <license>TODO: License declaration</license>
+
+  <test_depend>ament_copyright</test_depend>
+  <test_depend>ament_flake8</test_depend>
+  <test_depend>ament_pep257</test_depend>
+  <test_depend>python3-pytest</test_depend>
+
+  <export>
+    <build_type>ament_python</build_type>
+  </export>
+</package>

src/InteractionMetrics/setup.cfg

@@ -0,0 +1,4 @@
+[develop]
+script_dir=$base/lib/InteractionMetrics
+[install]
+install_scripts=$base/lib/InteractionMetrics

src/InteractionMetrics/setup.py

@@ -0,0 +1,25 @@
+from setuptools import find_packages, setup
+
+package_name = 'InteractionMetrics'
+
+setup(
+    name=package_name,
+    version='0.0.0',
+    packages=find_packages(exclude=['test']),
+    data_files=[
+        ('share/ament_index/resource_index/packages',
+            ['resource/' + package_name]),
+        ('share/' + package_name, ['package.xml']),
+    ],
+    install_requires=['setuptools'],
+    zip_safe=True,
+    maintainer='niko',
+    maintainer_email='nikolaus.feith@unileoben.ac.at',
+    description='TODO: Package description',
+    license='TODO: License declaration',
+    tests_require=['pytest'],
+    entry_points={
+        'console_scripts': [
+        ],
+    },
+)

src/InteractionMetrics/test/test_copyright.py

@@ -0,0 +1,25 @@
+# Copyright 2015 Open Source Robotics Foundation, 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.
+
+from ament_copyright.main import main
+import pytest
+
+
+# Remove the `skip` decorator once the source file(s) have a copyright header
+@pytest.mark.skip(reason='No copyright header has been placed in the generated source file.')
+@pytest.mark.copyright
+@pytest.mark.linter
+def test_copyright():
+    rc = main(argv=['.', 'test'])
+    assert rc == 0, 'Found errors'

src/InteractionMetrics/test/test_flake8.py

@@ -0,0 +1,25 @@
+# Copyright 2017 Open Source Robotics Foundation, 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.
+
+from ament_flake8.main import main_with_errors
+import pytest
+
+
+@pytest.mark.flake8
+@pytest.mark.linter
+def test_flake8():
+    rc, errors = main_with_errors(argv=[])
+    assert rc == 0, \
+        'Found %d code style errors / warnings:\n' % len(errors) + \
+        '\n'.join(errors)

src/InteractionMetrics/test/test_pep257.py

@@ -0,0 +1,23 @@
+# Copyright 2015 Open Source Robotics Foundation, 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.
+
+from ament_pep257.main import main
+import pytest
+
+
+@pytest.mark.linter
+@pytest.mark.pep257
+def test_pep257():
+    rc = main(argv=['.', 'test'])
+    assert rc == 0, 'Found code style errors / warnings'

src/InteractionMsgs/CMakeLists.txt

@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.8)
+project(InteractionMsgs)
+
+if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  add_compile_options(-Wall -Wextra -Wpedantic)
+endif()
+
+# find dependencies
+find_package(ament_cmake REQUIRED)
+# uncomment the following section in order to fill in
+# further dependencies manually.
+# find_package(<dependency> REQUIRED)
+
+if(BUILD_TESTING)
+  find_package(ament_lint_auto REQUIRED)
+  # the following line skips the linter which checks for copyrights
+  # comment the line when a copyright and license is added to all source files
+  set(ament_cmake_copyright_FOUND TRUE)
+  # the following line skips cpplint (only works in a git repo)
+  # comment the line when this package is in a git repo and when
+  # a copyright and license is added to all source files
+  set(ament_cmake_cpplint_FOUND TRUE)
+  ament_lint_auto_find_test_dependencies()
+endif()
+
+ament_package()

src/InteractionMsgs/package.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>InteractionMsgs</name>
+  <version>0.0.0</version>
+  <description>TODO: Package description</description>
+  <maintainer email="nikolaus.feith@unileoben.ac.at">niko</maintainer>
+  <license>TODO: License declaration</license>
+
+  <buildtool_depend>ament_cmake</buildtool_depend>
+
+  <test_depend>ament_lint_auto</test_depend>
+  <test_depend>ament_lint_common</test_depend>
+
+  <export>
+    <build_type>ament_cmake</build_type>
+  </export>
+</package>

src/ObjectiveFunctions/package.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>ObjectiveFunctions</name>
+  <version>0.0.0</version>
+  <description>TODO: Package description</description>
+  <maintainer email="nikolaus.feith@unileoben.ac.at">niko</maintainer>
+  <license>TODO: License declaration</license>
+
+  <test_depend>ament_copyright</test_depend>
+  <test_depend>ament_flake8</test_depend>
+  <test_depend>ament_pep257</test_depend>
+  <test_depend>python3-pytest</test_depend>
+
+  <export>
+    <build_type>ament_python</build_type>
+  </export>
+</package>

src/ObjectiveFunctions/setup.cfg

@@ -0,0 +1,4 @@
+[develop]
+script_dir=$base/lib/ObjectiveFunctions
+[install]
+install_scripts=$base/lib/ObjectiveFunctions

src/ObjectiveFunctions/setup.py

@@ -0,0 +1,25 @@
+from setuptools import find_packages, setup
+
+package_name = 'ObjectiveFunctions'
+
+setup(
+    name=package_name,
+    version='0.0.0',
+    packages=find_packages(exclude=['test']),
+    data_files=[
+        ('share/ament_index/resource_index/packages',
+            ['resource/' + package_name]),
+        ('share/' + package_name, ['package.xml']),
+    ],
+    install_requires=['setuptools'],
+    zip_safe=True,
+    maintainer='niko',
+    maintainer_email='nikolaus.feith@unileoben.ac.at',
+    description='TODO: Package description',
+    license='TODO: License declaration',
+    tests_require=['pytest'],
+    entry_points={
+        'console_scripts': [
+        ],
+    },
+)

src/ObjectiveFunctions/test/test_copyright.py

@@ -0,0 +1,25 @@
+# Copyright 2015 Open Source Robotics Foundation, 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.
+
+from ament_copyright.main import main
+import pytest
+
+
+# Remove the `skip` decorator once the source file(s) have a copyright header
+@pytest.mark.skip(reason='No copyright header has been placed in the generated source file.')
+@pytest.mark.copyright
+@pytest.mark.linter
+def test_copyright():
+    rc = main(argv=['.', 'test'])
+    assert rc == 0, 'Found errors'

src/ObjectiveFunctions/test/test_flake8.py

@@ -0,0 +1,25 @@
+# Copyright 2017 Open Source Robotics Foundation, 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.
+
+from ament_flake8.main import main_with_errors
+import pytest
+
+
+@pytest.mark.flake8
+@pytest.mark.linter
+def test_flake8():
+    rc, errors = main_with_errors(argv=[])
+    assert rc == 0, \
+        'Found %d code style errors / warnings:\n' % len(errors) + \
+        '\n'.join(errors)

src/ObjectiveFunctions/test/test_pep257.py

@@ -0,0 +1,23 @@
+# Copyright 2015 Open Source Robotics Foundation, 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.
+
+from ament_pep257.main import main
+import pytest
+
+
+@pytest.mark.linter
+@pytest.mark.pep257
+def test_pep257():
+    rc = main(argv=['.', 'test'])
+    assert rc == 0, 'Found code style errors / warnings'

src/Optimizers/package.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>Optimizers</name>
+  <version>0.0.0</version>
+  <description>TODO: Package description</description>
+  <maintainer email="nikolaus.feith@unileoben.ac.at">niko</maintainer>
+  <license>TODO: License declaration</license>
+
+  <test_depend>ament_copyright</test_depend>
+  <test_depend>ament_flake8</test_depend>
+  <test_depend>ament_pep257</test_depend>
+  <test_depend>python3-pytest</test_depend>
+
+  <export>
+    <build_type>ament_python</build_type>
+  </export>
+</package>

src/Optimizers/setup.cfg

@@ -0,0 +1,4 @@
+[develop]
+script_dir=$base/lib/Optimizers
+[install]
+install_scripts=$base/lib/Optimizers

src/Optimizers/setup.py

@@ -0,0 +1,25 @@
+from setuptools import find_packages, setup
+
+package_name = 'Optimizers'
+
+setup(
+    name=package_name,
+    version='0.0.0',
+    packages=find_packages(exclude=['test']),
+    data_files=[
+        ('share/ament_index/resource_index/packages',
+            ['resource/' + package_name]),
+        ('share/' + package_name, ['package.xml']),
+    ],
+    install_requires=['setuptools'],
+    zip_safe=True,
+    maintainer='niko',
+    maintainer_email='nikolaus.feith@unileoben.ac.at',
+    description='TODO: Package description',
+    license='TODO: License declaration',
+    tests_require=['pytest'],
+    entry_points={
+        'console_scripts': [
+        ],
+    },
+)

src/Optimizers/test/test_copyright.py

@@ -0,0 +1,25 @@
+# Copyright 2015 Open Source Robotics Foundation, 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.
+
+from ament_copyright.main import main
+import pytest
+
+
+# Remove the `skip` decorator once the source file(s) have a copyright header
+@pytest.mark.skip(reason='No copyright header has been placed in the generated source file.')
+@pytest.mark.copyright
+@pytest.mark.linter
+def test_copyright():
+    rc = main(argv=['.', 'test'])
+    assert rc == 0, 'Found errors'

src/Optimizers/test/test_flake8.py

@@ -0,0 +1,25 @@
+# Copyright 2017 Open Source Robotics Foundation, 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.
+
+from ament_flake8.main import main_with_errors
+import pytest
+
+
+@pytest.mark.flake8
+@pytest.mark.linter
+def test_flake8():
+    rc, errors = main_with_errors(argv=[])
+    assert rc == 0, \
+        'Found %d code style errors / warnings:\n' % len(errors) + \
+        '\n'.join(errors)

src/Optimizers/test/test_pep257.py

@@ -0,0 +1,23 @@
+# Copyright 2015 Open Source Robotics Foundation, 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.
+
+from ament_pep257.main import main
+import pytest
+
+
+@pytest.mark.linter
+@pytest.mark.pep257
+def test_pep257():
+    rc = main(argv=['.', 'test'])
+    assert rc == 0, 'Found code style errors / warnings'

src/RepresentationModels/package.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>RepresentationModels</name>
+  <version>0.0.0</version>
+  <description>TODO: Package description</description>
+  <maintainer email="nikolaus.feith@unileoben.ac.at">niko</maintainer>
+  <license>TODO: License declaration</license>
+
+  <test_depend>ament_copyright</test_depend>
+  <test_depend>ament_flake8</test_depend>
+  <test_depend>ament_pep257</test_depend>
+  <test_depend>python3-pytest</test_depend>
+
+  <export>
+    <build_type>ament_python</build_type>
+  </export>
+</package>

src/RepresentationModels/setup.cfg

@@ -0,0 +1,4 @@
+[develop]
+script_dir=$base/lib/RepresentationModels
+[install]
+install_scripts=$base/lib/RepresentationModels

src/RepresentationModels/setup.py

@@ -0,0 +1,25 @@
+from setuptools import find_packages, setup
+
+package_name = 'RepresentationModels'
+
+setup(
+    name=package_name,
+    version='0.0.0',
+    packages=find_packages(exclude=['test']),
+    data_files=[
+        ('share/ament_index/resource_index/packages',
+            ['resource/' + package_name]),
+        ('share/' + package_name, ['package.xml']),
+    ],
+    install_requires=['setuptools'],
+    zip_safe=True,
+    maintainer='niko',
+    maintainer_email='nikolaus.feith@unileoben.ac.at',
+    description='TODO: Package description',
+    license='TODO: License declaration',
+    tests_require=['pytest'],
+    entry_points={
+        'console_scripts': [
+        ],
+    },
+)

src/RepresentationModels/test/test_copyright.py

@@ -0,0 +1,25 @@
+# Copyright 2015 Open Source Robotics Foundation, 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.
+
+from ament_copyright.main import main
+import pytest
+
+
+# Remove the `skip` decorator once the source file(s) have a copyright header
+@pytest.mark.skip(reason='No copyright header has been placed in the generated source file.')
+@pytest.mark.copyright
+@pytest.mark.linter
+def test_copyright():
+    rc = main(argv=['.', 'test'])
+    assert rc == 0, 'Found errors'

src/RepresentationModels/test/test_flake8.py

@@ -0,0 +1,25 @@
+# Copyright 2017 Open Source Robotics Foundation, 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.
+
+from ament_flake8.main import main_with_errors
+import pytest
+
+
+@pytest.mark.flake8
+@pytest.mark.linter
+def test_flake8():
+    rc, errors = main_with_errors(argv=[])
+    assert rc == 0, \
+        'Found %d code style errors / warnings:\n' % len(errors) + \
+        '\n'.join(errors)

src/RepresentationModels/test/test_pep257.py

@@ -0,0 +1,23 @@
+# Copyright 2015 Open Source Robotics Foundation, 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.
+
+from ament_pep257.main import main
+import pytest
+
+
+@pytest.mark.linter
+@pytest.mark.pep257
+def test_pep257():
+    rc = main(argv=['.', 'test'])
+    assert rc == 0, 'Found code style errors / warnings'