Add coverage

tools/telemetry/third_party/coverage/tox.ini

+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
+[tox]
+envlist = py{26,27,33,34,35}, pypy{24,26,3_24}
+skip_missing_interpreters = True
+
+[testenv]
+usedevelop = True
+
+deps =
+    # https://requires.io/github/nedbat/coveragepy/requirements/
+    nose==1.3.7
+    mock==1.3.0
+    PyContracts==1.7.6
+    py26: unittest2==1.1.0
+    py{26,27,33,34}: gevent==1.1b5
+    py{26,27,33,34}: eventlet==0.17.4
+    py{26,27,33,34,35}: greenlet==0.4.9
+
+passenv = *
+setenv =
+    pypy,pypy{24,26,3_24}: COVERAGE_NO_EXTENSION=no C extensions under PyPy
+
+commands =
+    python setup.py --quiet clean develop
+
+    # Create tests/zipmods.zip
+    # Install the egg1 egg
+    # Remove the C extension so that we can test the PyTracer
+    python igor.py zip_mods install_egg remove_extension
+
+    # Test with the PyTracer
+    python igor.py test_with_tracer py {posargs}
+
+    # Build the C extension and test with the CTracer
+    python setup.py --quiet build_ext --inplace
+    python igor.py test_with_tracer c {posargs}
+
+[testenv:pypy]
+basepython = pypy
+
+[testenv:pypy24]
+basepython = pypy2.4
+
+[testenv:pypy26]
+basepython = pypy2.6
+
+[testenv:pypy3_24]
+basepython = pypy3-2.4
+
+
+# Yes, pep8 will read its settings from tox.ini!
+[pep8]
+# E265: block comment should start with '# '
+# E301 expected 1 blank line, found 0
+# E401 multiple imports on one line
+# The rest are the default ignored warnings.
+ignore = E265,E123,E133,E226,E241,E242,E301,E401
+max-line-length = 100