[Kimchi-devel] [PATCH] [Kimchi] Isolate unit tests execution.

[Paulo Ricardo Paz Vital]

On May 18 06:24PM, Aline Manera wrote:
>
>
> On 05/16/2016 11:16 PM, pvital at linux.vnet.ibm.com wrote:
> > From: Paulo Vital <pvital at linux.vnet.ibm.com>
> >
> > This patch isolates each unit test execution reducing the occurrences of tests
> > using data from previous unit tests and making results not reliable.
> >
> > In addition, it also simplifies the output of tests execution, printing the tags
> > PASSED and FAILED and the error/failed banners only when necessary.
> >
> > Signed-off-by: Paulo Vital <pvital at linux.vnet.ibm.com>
> > ---
> >   tests/run_tests.sh.in | 53 +++++++++++++++++++++++++++++++++++++++------------
> >   1 file changed, 41 insertions(+), 12 deletions(-)
> >
> > diff --git a/tests/run_tests.sh.in b/tests/run_tests.sh.in
> > index 68dfa2e..d9c2661 100644
> > --- a/tests/run_tests.sh.in
> > +++ b/tests/run_tests.sh.in
> > @@ -21,6 +21,10 @@
> >   HAVE_UNITTEST=@HAVE_PYMOD_UNITTEST@
> >   PYTHON_VER=@PYTHON_VERSION@
> >
> > +RED='\033[0;31m'
> > +GREEN='\033[0;32m'
> > +NC='\033[0m' # No Color
> > +
> >   if [ "$1" = "-v" ]; then
> >       OPTS="-v"
> >       shift
> > @@ -40,19 +44,44 @@ else
> >       CMD="python -m unittest"
> >   fi
> >
> > -LIST=($ARGS)
> > -MODEL_LIST=()
> > -MOCK_LIST=()
> > -for ((i=0;i<${#LIST[@]};i++)); do
> > -
> > -    if [[ ${LIST[$i]} == test_model* ]]; then
> > -        MODEL_LIST+=(${LIST[$i]})
> > +NUM_TESTS=0
> > +TIME=0
> > +declare -A FAILED_UT    # dict to store failed unit tests and its OUTPUT_FILE
> > +for UT in $ARGS; do
> > +    OUTPUT_FILE=$(mktemp)
> > +    echo -n "***** Running unit test: $UT... "
> > +    # ../../../../../ refers to the project root
> > +    # ../../../../ refers to wok directory
> > +    # ../../../ refers to plugins directory
> > +    PYTHONPATH=../../../../../:../../../../:../../../ \
> > +    PYTHONWARNINGS="ignore:Unverified HTTPS request" \
> > +    $CMD $OPTS $UT &> $OUTPUT_FILE
>
> You can do:
>
> output=$($CMD $OPTS $UT)
>
> to get the test output. That way we don't need to create multiple temporary
> files.
>

Yeap, I can do this. However, the idea to have a temporary file is keep the full
output of the test case execution for future analysis, instead of check only the
console history.

This patch, when an error or failure happens, prints only the 'banner' with the
test case error on user console. With the output stored in a file (temporary
because I delete the files which finishes with no errors) I can see it later to
fix the error.

> > +    RES=$?
> > +    if [ $RES -ne 0 ]; then
> > +        # unit test has failed, so keep the OUTPUT_FILE and print the results
> > +        echo -e "\t ${RED}FAILED${NC}"
>
> > +        ERROR_LOG_BEGIN=$(grep -n "^\==*" $OUTPUT_FILE | head -n1 | cut -d":" -f1)
> > +        ERROR_LOG_END=$(cat $OUTPUT_FILE | wc -l)
> > +        tail -n $((${ERROR_LOG_END}-${ERROR_LOG_BEGIN}+1)) $OUTPUT_FILE
> > +        FAILED_UT+=([$UT]=$OUTPUT_FILE)
> > +        OUTPUT=$(grep "Ran" $OUTPUT_FILE)
>
> Following my suggestion to do not use temporary files, all the above block
> will be replace by:
>
> FAILED_UT+=$output
>

With this changes the full output of test execution will be printed in the
console. As I told above, this patch's idea is 'clean' the output printed in the
console by showing only the error/failure 'banner' and keeping the full
execution stack on a file.

> >       else
> > -        MOCK_LIST+=(${LIST[$i]})
> > +        # unit test has passed, so print the results and delete the OUTPUT_FILE
> > +        OUTPUT=$(grep "Ran" $OUTPUT_FILE)
> > +        echo -e "\t ${GREEN}PASSED${NC} - $OUTPUT"
> > +        rm -rf $OUTPUT_FILE
> >       fi
> > +    TES=$(echo $OUTPUT | cut -d" " -f2)
> > +    NUM_TESTS=$(echo "$NUM_TESTS + $TES" | bc)
> > +    TES=$(echo $OUTPUT | cut -d" " -f5)
> > +    TIME=$(echo "$TIME + ${TES:0:-1}" | bc)
> >   done
> >
> > -# ../../../../../ refers to the project root
> > -# ../../../../ refers to wok directory
> > -# ../../../ refers to plugins directory
> > -PYTHONPATH=../../../../../:../../../../:../../../ PYTHONWARNINGS="ignore:Unverified HTTPS request" $CMD $OPTS ${MODEL_LIST[@]} ${MOCK_LIST[@]}
> > +# Print summary results
> > +echo -e "======================================================================"
> > +echo -e "===================== Kimchi Unit Tests Summary ======================"
> > +echo -e "Ran $NUM_TESTS tests in $TIME seconds."
> > +for i in "${!FAILED_UT[@]}"; do
> > +    FAIL_STATS=$(grep FAILED ${FAILED_UT[$i]} | cut -d" " -f2-4)
> > +    echo -e "$i FAILED: $FAIL_STATS - log available at ${FAILED_UT[$i]}"
> > +done
> > --
> > 2.5.5
>

--
Paulo Ricardo Paz Vital
Linux Technology Center, IBM Systems
http://www.ibm.com/linux/ltc/