use pytest-cov (#44)

* use pytest-cov

* req

* auc

.github/workflows/ci_test-full.yml

@@ -79,7 +79,7 @@ jobs:
 
     - name: Tests
       run: |
-        coverage run --source torchmetrics -m pytest torchmetrics tests -v --junitxml=junit/test-results-${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.requires }}.xml
+        python -m pytest torchmetrics tests -v --cov=torchmetrics --junitxml=junit/test-results-${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.requires }}.xml
 
     - name: Upload pytest test results
       uses: actions/upload-artifact@v2

tests/bases/test_ddp.py

@@ -27,8 +27,8 @@ def _test_ddp_sum(rank, worldsize):
     dummy = DummyMetric()
     dummy._reductions = {"foo": torch.sum}
     dummy.foo = torch.tensor(1)
-
     dummy._sync_dist()
+
     assert dummy.foo == worldsize
 
 
@@ -38,6 +38,7 @@ def _test_ddp_cat(rank, worldsize):
     dummy._reductions = {"foo": torch.cat}
     dummy.foo = [torch.tensor([1])]
     dummy._sync_dist()
+
     assert torch.all(torch.eq(dummy.foo, torch.tensor([1, 1])))
 
 
@@ -48,6 +49,7 @@ def _test_ddp_sum_cat(rank, worldsize):
     dummy.foo = [torch.tensor([1])]
     dummy.bar = torch.tensor(1)
     dummy._sync_dist()
+
     assert torch.all(torch.eq(dummy.foo, torch.tensor([1, 1])))
     assert dummy.bar == worldsize
 

tests/requirements.txt

@@ -1,7 +1,8 @@
-coverage>=5.0
+coverage>=5.2
 codecov>=2.1
-pytest>=5.0
-pytest-cov
+pytest>=6.0
+pytest-cov>2.10
+pytest-xdist
 # pytest-flake8
 flake8
 check-manifest

torchmetrics/functional/classification/auc.py

@@ -69,6 +69,8 @@ def auc(x: torch.Tensor, y: torch.Tensor, reorder: bool = False) -> torch.Tensor
         >>> y = torch.tensor([0, 1, 2, 2])
         >>> auc(x, y)
         tensor(4.)
+        >>> auc(x, y, reorder=True)
+        tensor(4.)
     """
     x, y = _auc_update(x, y)
     return _auc_compute(x, y, reorder=reorder)