Add coverage check

.coveragerc

@@ -0,0 +1,9 @@
+[run]
+omit =
+	.venv/*
+	scripts/*
+	tests/*
+source =
+	chainqueue/adapters
+	chainqueue
+	chaind_eth

.gitignore

@@ -5,3 +5,4 @@ dist/
 build/
 *.egg-info
 *.sqlite
+.coverage

run_coverage.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+#set -e
+#set -x
+#export PYTHONPATH=${PYTHONPATH:.}
+#for f in `ls tests/*.py`; do
+#	python $f
+#done
+#set +x
+#set +e
+COVERAGE_MINIMUM=${COVERAGE_MINIMUM:-90}
+coverage run -m unittest tests/test_*.py
+coverage report -m --fail-under $COVERAGE_MINIMUM

test_requirements.txt

@@ -1,3 +1,4 @@
 eth_tester==0.5.0b3
 py-evm==0.3.0a20
 rlp==2.0.1
+coverage==5.5