Use pytest --no-cov instead of tools/pytest_all.sh

The --no-cov option is added in pytest-cov==2.4.0,
to which I just upgraded.

.travis.yml

@@ -35,7 +35,7 @@ script:
     # Basic stuff.
     - python setup.py check --strict --restructuredtext
     - tools/pylint_all.sh -j 2
-    - tools/pytest_all.sh
+    - pytest
 
     # Build the files to be uploaded to pythonhosted.org.
     - tools/build_extra_doc.sh

HACKING.rst

@@ -102,7 +102,7 @@ but rather to ensure that no line has been *forgotten*.
 Feel free to add ``pragma: no cover`` to code
 that would be hard to cover with a natural, functional test.
 
-To run tests with coverage checks locally, use ``tools/pytest_all.sh``.
+Use ``pytest --no-cov`` to skip coverage checks when iterating on some code.
 
 
 Typical workflows
@@ -148,7 +148,7 @@ Adding a notice
 #. If necessary, add more test cases: ``1679_2``, and so on.
 #. Run your tests and make sure they fail as expected::
 
-     $ pytest -k1679
+     $ pytest --no-cov -k1679
 
 #. Write the actual checks logic.
    Usually it goes into one of the four big functions described above,

pytest.ini

@@ -1,2 +1,2 @@
 [pytest]
-addopts = --doctest-modules --ignore=setup.py --ignore=doc/
+addopts = --doctest-modules --ignore=setup.py --ignore=doc/ --cov=httpolice/ --cov=test/ --cov-fail-under=100 --cov-report=html