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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
show_diff () {
head -1 $1
diff -U 0 $1 $2 | sed 1,2d
if ! git diff --exit-code || ! git diff --cached --exit-code
echo "There are uncommitted changes!"
echo "Please clean git working directory and try again"
exit 1
# Checkout master and save coverage report
git checkout HEAD^
base_op_count=`grep "op\." -R magnum/db/sqlalchemy/alembic/versions/ | wc -l`
baseline_report=$(mktemp -t magnum_coverageXXXXXXX)
find . -type f -name "*.pyc" -delete && python testr --coverage --testr-args="$*"
coverage report > $baseline_report
mv cover cover-master
cat $baseline_report
baseline_missing=$(awk 'END { print $3 }' $baseline_report)
# Checkout back and save coverage report
git checkout -
current_op_count=`grep "op\." -R magnum/db/sqlalchemy/alembic/versions/ | wc -l`
current_report=$(mktemp -t magnum_coverageXXXXXXX)
find . -type f -name "*.pyc" -delete && python testr --coverage --testr-args="$*"
coverage report > $current_report
current_missing=$(awk 'END { print $3 }' $current_report)
# Show coverage details
echo "Allowed to introduce missing lines : ${ALLOWED_EXTRA_MISSING}"
echo "Missing lines in master : ${baseline_missing}"
echo "Missing lines in proposed change : ${current_missing}"
if [ $allowed_missing -ge $current_missing ]; then
if [ $baseline_missing -lt $current_missing ]; then
show_diff $baseline_report $current_report
echo "We believe you can test your code with 100% coverage!"
echo "Thank you! You are awesome! Keep writing unit tests! :)"
show_diff $baseline_report $current_report
echo "Please write more unit tests, we must maintain our test coverage :( "
rm $baseline_report $current_report
exit $exit_code