Add coveralls and a coverage environment.

Currently only at 67% coverage.

.travis.yml

@@ -1,5 +1,4 @@
 language: python
-sudo: false
 python:
     - 2.7
     - 3.4
@@ -11,10 +10,15 @@ matrix:
     include:
         - python: 3.7
           dist: xenial
-          sudo: true
+
 install:
-    - pip install -e .[test]
+    - pip install -U pip setuptools
+    - pip install -U coverage coveralls
+    - pip install -U -e .[test]
 script:
-    - python setup.py -q test -q
+    - coverage run -m zope.testrunner --test-path=src
+after_success:
+    - coveralls
 notifications:
     email: false
+cache: pip

MANIFEST.in

@@ -3,6 +3,8 @@ include *.txt
 include *.py
 include buildout.cfg
 include tox.ini
+include .travis.yml
+include .coveragerc
 
 recursive-include src *
 

setup.py

@@ -27,6 +27,11 @@ def read(*rnames):
         return f.read()
 
 
+TESTS_REQUIRE = [
+    'zope.testing',
+    'zope.testrunner',
+]
+
 setup(
     name="zope.keyreference",
     version=read("version.txt").strip(),
@@ -67,7 +72,9 @@ def read(*rnames):
     packages=find_packages("src"),
     package_dir={"": "src"},
     namespace_packages=["zope"],
-    extras_require={"test": ["zope.testing"]},
+    extras_require={
+        "test": TESTS_REQUIRE,
+    },
     install_requires=[
         "setuptools",
         "ZODB",
@@ -76,7 +83,7 @@ def read(*rnames):
         "zope.interface",
         "zope.schema",
     ],
-    tests_require=["zope.testing"],
+    tests_require=TESTS_REQUIRE,
     test_suite="zope.keyreference.tests.test_suite",
     include_package_data=True,
     zip_safe=False,

tox.ini

@@ -9,8 +9,18 @@ envlist =
     pypy3
 
 [testenv]
-usedevelop = true
 commands =
-    python setup.py -q test -q
+    zope-testrunner --test-path=src []
 deps =
     .[test]
+
+[testenv:coverage]
+usedevelop = true
+basepython =
+    python3.6
+commands =
+    coverage run -m zope.testrunner --test-path=src []
+    coverage report --fail-under=67
+deps =
+    {[testenv]deps}
+    coverage