update CI - pkg build (#1235)

* add testing in Travis

* add proj. requirements

* install CUDA

* def tested packages

* add missing meta in setup

* add empty test

* restructure travis tests

* add sample doctest

* switch to nose2

* add sample test

* using pytest

* minor fixes

.travis.yml

 dist: xenial
 language: python
 
-install:
-  - pip install isort flake8 yapf 
-
 python:
   - "3.5"
   - "3.6"
   - "3.7"
 
+env: CUDA=9.2.148-1 CUDA_SHORT=9.2 UBUNTU_VERSION=ubuntu1604
+
+# Ref to CUDA installation in Travis: https://github.com/jeremad/cuda-travis
+before_install:
+  - INSTALLER=cuda-repo-${UBUNTU_VERSION}_${CUDA}_amd64.deb
+  - wget http://developer.download.nvidia.com/compute/cuda/repos/${UBUNTU_VERSION}/x86_64/${INSTALLER}
+  - sudo dpkg -i ${INSTALLER}
+  - wget https://developer.download.nvidia.com/compute/cuda/repos/${UBUNTU_VERSION}/x86_64/7fa2af80.pub
+  - sudo apt-key add 7fa2af80.pub
+  - sudo apt update -qq
+  - sudo apt install -y cuda-${CUDA_SHORT/./-} cuda-cufft-dev-${CUDA_SHORT/./-}
+  - sudo apt clean
+  - CUDA_HOME=/usr/local/cuda-${CUDA_SHORT}
+  - LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${CUDA_HOME}/include:${LD_LIBRARY_PATH}
+  - PATH=${CUDA_HOME}/bin:${PATH}
+
+install:
+  - pip install Cython
+  - pip install -r requirements.txt
+  - pip install -r tests/requirements.txt
+
 script:
-  - flake8
-  - isort -rc --check-only --diff mmdet/ tools/
-  - yapf -r -d --style .style.yapf mmdet/ tools/
\ No newline at end of file
+  - flake8 .
+  - isort -rc --check-only --diff mmdet/ tools/ tests/
+  - yapf -r -d --style .style.yapf mmdet/ tools/ tests/
+  - python setup.py check -m -s
+  - python setup.py build_ext --inplace
+  - coverage run --source mmdet -m py.test tests -v --doctest-modules
+
+after_success:
+  - coverage report
\ No newline at end of file

mmdet/utils/flops_counter.py

@@ -101,6 +101,18 @@ def flops_to_string(flops, units='GMac', precision=2):
 
 
 def params_to_string(params_num):
+    """converting number to string
+
+    :param float params_num: number
+    :returns str: number
+
+    >>> params_to_string(1e9)
+    '1000.0 M'
+    >>> params_to_string(2e5)
+    '200.0 k'
+    >>> params_to_string(3e-9)
+    '3e-09'
+    """
     if params_num // 10**6 > 0:
         return str(round(params_num / 10**6, 2)) + ' M'
     elif params_num // 10**3:

requirements.txt

+mmcv>=0.2.10
+numpy
+matplotlib
+six
+terminaltables
+pycocotools
+torch>=1.1
+torchvision
+imagecorruptions
\ No newline at end of file

setup.py

@@ -126,6 +126,8 @@ if __name__ == '__main__':
         version=get_version(),
         description='Open MMLab Detection Toolbox and Benchmark',
         long_description=readme(),
+        author='OpenMMLab',
+        author_email='chenkaidev@gmail.com',
         keywords='computer vision, object detection',
         url='https://github.com/open-mmlab/mmdetection',
         packages=find_packages(exclude=('configs', 'tools', 'demo')),

tests/requirements.txt

+isort
+flake8
+yapf
+pytest-cov
+codecov
\ No newline at end of file

tests/test_utils.py

+import numpy.testing as npt
+
+from mmdet.utils.flops_counter import params_to_string
+
+
+def test_params_to_string():
+    npt.assert_equal(params_to_string(1e9), '1000.0 M')
+    npt.assert_equal(params_to_string(2e5), '200.0 k')
+    npt.assert_equal(params_to_string(3e-9), '3e-09')