test examples (#3643)

* test examples

* testing

* testing

* typo

* req

* exception

Co-authored-by: Adrian Wälchli <aedu.waelchli@gmail.com>

Co-authored-by: Adrian Wälchli <aedu.waelchli@gmail.com>

.github/workflows/ci_test-full.yml

@@ -63,6 +63,7 @@ jobs:
         python -c "fname = 'requirements/base.txt' ; req = open(fname).read().replace('>=', '==') ; open(fname, 'w').write(req)"
         python -c "fname = 'requirements/extra.txt' ; req = open(fname).read().replace('>=', '==') ; open(fname, 'w').write(req)"
         python -c "fname = 'requirements/test.txt' ; req = open(fname).read().replace('>=', '==') ; open(fname, 'w').write(req)"
+        python -c "fname = 'requirements/examples.txt' ; req = open(fname).read().replace('>=', '==') ; open(fname, 'w').write(req)"
 
     # Note: This uses an internal pip API and may not always work
     # https://github.com/actions/cache/blob/master/examples.md#multiple-oss-in-a-workflow
@@ -110,7 +111,7 @@ jobs:
     - name: Tests
       run: |
         # NOTE: do not include coverage report here, see: https://github.com/nedbat/coveragepy/issues/1003
-        coverage run --source pytorch_lightning -m pytest pytorch_lightning tests -v --durations=0 --junitxml=junit/test-results-${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.requires }}.xml
+        coverage run --source pytorch_lightning -m pytest pytorch_lightning tests pl_examples -v --durations=0 --junitxml=junit/test-results-${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.requires }}.xml
 
     - name: Upload pytest test results
       uses: actions/upload-artifact@master

pl_examples/basic_examples/autoencoder.py

@@ -23,7 +23,7 @@ from torch.utils.data import random_split
 try:
     from torchvision.datasets.mnist import MNIST
     from torchvision import transforms
-except Exception as e:
+except ModuleNotFoundError:
     from tests.base.datasets import MNIST
 
 

requirements/devel.txt

@@ -5,4 +5,7 @@
 -r ./extra.txt
 
 # extended list of dependencies dor development and run lint and tests
--r ./test.txt
+-r ./test.txt
+
+# install all extra dependencies for running examples
+-r ./examples.txt

requirements/examples.txt

@@ -1,2 +1,2 @@
-torchvision>=0.4.0
+torchvision>=0.4.1
 gym>=0.17.0