exchange/src/auditor/test-revocation.sh

#!/bin/bash
# Setup database which was generated from a exchange-wallet interaction
# with revocations and run the auditor against it.
#
# Check that the auditor report is as expected.
#
# Requires 'jq' tool and Postgres superuser rights!
set -eu

# Set of numbers for all the testcases.
# When adding new tests, increase the last number:
ALL_TESTS=`seq 0 4`

# $TESTS determines which tests we should run.
# This construction is used to make it easy to
# only run a subset of the tests. To only run a subset,
# pass the numbers of the tests to run as the FIRST
# argument to test-auditor.sh, i.e.:
#
# $ test-revocation.sh "1 3"
#
# to run tests 1 and 3 only.  By default, all tests are run.
#
TESTS=${1:-$ALL_TESTS}

# Global variable to run the auditor processes under valgrind
# VALGRIND=valgrind
VALGRIND=""

# Exit, with status code "skip" (no 'real' failure)
function exit_skip() {
    echo $1
    exit 77
}

# Exit, with error message (hard failure)
function exit_fail() {
    echo $1
    exit 1
}

# Cleanup to run whenever we exit
function cleanup()
{
    for n in `jobs -p`
    do
        kill $n 2> /dev/null || true
    done
    wait
    # kill euFin
    echo Killing euFin..
    kill `cat libeufin-sandbox.pid 2> /dev/null` &> /dev/null || true
    kill `cat libeufin-nexus.pid 2> /dev/null` &> /dev/null || true
    # So far only Sandbox gave exit issues / delays ..
    count=0
    while ps xo pid | grep `cat libeufin-sandbox.pid`; do
        if test $count = 5; then
            echo "Sandbox unkillable, failing now .."
	        exit 1
        fi
        echo "Sandbox didn't exit yet.."
        sleep 1;
        count=`expr $count + 1`
    done
}

# Install cleanup handler (except for kill -9)
trap cleanup EXIT

# Downloads new transactions from the bank.
function nexus_fetch_transactions () {
    export LIBEUFIN_NEXUS_USERNAME=exchange
    export LIBEUFIN_NEXUS_PASSWORD=x
    export LIBEUFIN_NEXUS_URL=http://localhost:8082/
    libeufin-cli accounts fetch-transactions \
                 --range-type since-last --level report exchange-nexus > /dev/null
    unset LIBEUFIN_NEXUS_USERNAME
    unset LIBEUFIN_NEXUS_PASSWORD
    unset LIBEUFIN_NEXUS_URL
}

# Instruct Nexus to all the prepared payments (= those
# POSTed to /transfer by the exchange).
function nexus_submit_to_sandbox () {
    export LIBEUFIN_NEXUS_USERNAME=exchange
    export LIBEUFIN_NEXUS_PASSWORD=x
    export LIBEUFIN_NEXUS_URL=http://localhost:8082/
    libeufin-cli accounts submit-payments exchange-nexus
    unset LIBEUFIN_NEXUS_USERNAME
    unset LIBEUFIN_NEXUS_PASSWORD
    unset LIBEUFIN_NEXUS_URL
}

function get_payto_uri() {
    export LIBEUFIN_SANDBOX_USERNAME=$1
    export LIBEUFIN_SANDBOX_PASSWORD=$2
    export LIBEUFIN_SANDBOX_URL=http://localhost:18082/demobanks/default
    libeufin-cli sandbox demobank info --bank-account $1 | jq --raw-output '.paytoUri'
}

function launch_libeufin () {
    export LIBEUFIN_NEXUS_DB_CONNECTION="jdbc:sqlite:$DB.sqlite3"
    libeufin-nexus serve --port 8082 \
                   2> libeufin-nexus-stderr.log \
                   > libeufin-nexus-stdout.log &
    echo $! > libeufin-nexus.pid
    export LIBEUFIN_SANDBOX_DB_CONNECTION="jdbc:sqlite:$DB.sqlite3"
    export LIBEUFIN_SANDBOX_ADMIN_PASSWORD=secret
    libeufin-sandbox serve --port 18082 \
                     > libeufin-sandbox-stdout.log \
                     2> libeufin-sandbox-stderr.log &
    echo $! > libeufin-sandbox.pid
}

# Operations to run before the actual audit
function pre_audit () {
    # Launch bank
    echo -n "Launching bank "
    EXCHANGE_URL=`taler-config -c $CONF -s EXCHANGE -o BASE_URL`
    launch_libeufin
    for n in `seq 1 80`
    do
        echo -n "."
        sleep 0.1
        OK=1
        wget http://localhost:18082/ -o /dev/null -O /dev/null >/dev/null && break
        OK=0
    done
    if [ 1 != $OK ]
    then
        exit_skip "Failed to launch Sandbox"
    fi
    for n in `seq 1 80`
    do
        echo -n "."
        sleep 0.1
        OK=1
        wget http://localhost:8082/ -o /dev/null -O /dev/null >/dev/null && break
        OK=0
    done
    if [ 1 != $OK ]
    then
        exit_skip "Failed to launch Nexus"
    fi
    echo " DONE"
    if test ${1:-no} = "aggregator"
    then
        export CONF
	    echo -n "Running exchange aggregator ... (config: $CONF)"
        taler-exchange-aggregator -L INFO -t -c $CONF -y 2> aggregator.log || exit_fail "FAIL"
        echo " DONE"
        echo -n "Running exchange closer ..."
        taler-exchange-closer -L INFO -t -c $CONF 2> closer.log || exit_fail "FAIL"
        echo " DONE"
        echo -n "Running exchange transfer ..."
        taler-exchange-transfer -L INFO -t -c $CONF 2> transfer.log || exit_fail "FAIL"
        echo " DONE"
	    echo -n "Running Nexus payment submitter ..."
	    nexus_submit_to_sandbox
	    echo " DONE"
	    # Make outgoing transactions appear in the TWG:
	    echo -n "Download bank transactions ..."
	    nexus_fetch_transactions
	    echo " DONE"
    fi
}

# actual audit run
function audit_only () {
    # Run the auditor!
    echo -n "Running audit(s) ... (conf is $CONF)"

    # Restart so that first run is always fresh, and second one is incremental
    taler-auditor-dbinit -r -c $CONF
    $VALGRIND taler-helper-auditor-aggregation -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-aggregation.json 2> test-audit-aggregation.log || exit_fail "aggregation audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-aggregation -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-aggregation-inc.json 2> test-audit-aggregation-inc.log || exit_fail "incremental aggregation audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-coins -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-coins.json 2> test-audit-coins.log || exit_fail "coin audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-coins -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-coins-inc.json 2> test-audit-coins-inc.log || exit_fail "incremental coin audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-deposits -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-deposits.json 2> test-audit-deposits.log || exit_fail "deposits audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-deposits -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-deposits-inc.json 2> test-audit-deposits-inc.log || exit_fail "incremental deposits audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-reserves -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-reserves.json 2> test-audit-reserves.log || exit_fail "reserves audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-reserves -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-reserves-inc.json 2> test-audit-reserves-inc.log || exit_fail "incremental reserves audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-wire -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-wire.json 2> test-wire-audit.log || exit_fail "wire audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-wire -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-wire-inc.json 2> test-wire-audit-inc.log || exit_fail "wire audit failed"
    echo -n "."

    echo " DONE"
}


# Cleanup to run after the auditor
function post_audit () {
    echo -n "Cleanup ..."
    cleanup
    echo " DONE"
    echo -n "TeXing ."
    taler-helper-auditor-render.py test-audit-aggregation.json test-audit-coins.json test-audit-deposits.json test-audit-reserves.json test-audit-wire.json < ../../contrib/auditor-report.tex.j2 > test-report.tex || exit_fail "Renderer failed"

    echo -n "."
    timeout 10 pdflatex test-report.tex >/dev/null || exit_fail "pdflatex failed"
    echo -n "."
    timeout 10 pdflatex test-report.tex >/dev/null
    echo " DONE"
}


# Run audit process on current database, including report
# generation.  Pass "aggregator" as $1 to run
# $ taler-exchange-aggregator
# before auditor (to trigger pending wire transfers).
function run_audit () {
    pre_audit ${1:-no}
    audit_only
    post_audit

}


# Do a full reload of the (original) database
full_reload()
{
    echo -n "Doing full reload of the database... "
    dropdb $DB 2> /dev/null || true
    rm -f $DB.sqlite3 || true # libeufin
    createdb -T template0 $DB || exit_skip "could not create database"
    # Import pre-generated database, -q(ietly) using single (-1) transaction
    psql -Aqt $DB -q -1 -f ${BASEDB}.sql > /dev/null || exit_skip "Failed to load database"
    sqlite3 $DB.sqlite3 < ${BASEDB}-libeufin.sql || exit_skip "Failed to load libEufin database"
    echo "DONE"
    # Exchange payto URI contains the (dynamically generated)
    # IBAN, that can only be written in CONF after libeufin is
    # setup.
    taler-config -c $CONF -s exchange-account-1 -o PAYTO_URI &> /dev/null || (
        echo -n "Specifying exchange payto URI in the configuration ($CONF) (grab IBAN from $DB.sqlite3)...";
        EXCHANGE_IBAN=`echo "SELECT iban FROM BankAccounts WHERE label='exchange'" | sqlite3 $DB.sqlite3`;
        taler-config -c $CONF -s exchange-account-1 -o PAYTO_URI \
                     -V "payto://iban/SANDBOXX/$EXCHANGE_IBAN?receiver-name=Exchange+Company"
        echo " DONE"
    )
}


function test_0() {

    echo "===========0: normal run with aggregator==========="
    run_audit aggregator

    echo "Checking output"
    # if an emergency was detected, that is a bug and we should fail
    echo -n "Test for emergencies... "
    jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency detected in ordinary run" || echo PASS
    echo -n "Test for deposit confirmation emergencies... "
    jq -e .deposit_confirmation_inconsistencies[0] < test-audit-deposits.json > /dev/null && exit_fail "Unexpected deposit confirmation inconsistency detected" || echo PASS
    echo -n "Test for emergencies by count... "
    jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency by count detected in ordinary run" || echo PASS

    echo -n "Test for wire inconsistencies... "
    jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire out inconsistency detected in ordinary run"
    jq -e .reserve_in_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected reserve in inconsistency detected in ordinary run"
    jq -e .misattribution_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected misattribution inconsistency detected in ordinary run"
    jq -e .row_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected row inconsistency detected in ordinary run"
    jq -e .denomination_key_validity_withdraw_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected denomination key withdraw inconsistency detected in ordinary run"
    jq -e .row_minor_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected minor row inconsistency detected in ordinary run"
    jq -e .lag_details[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected lag detected in ordinary run"
    jq -e .wire_format_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire format inconsistencies detected in ordinary run"


    # TODO: check operation balances are correct (once we have all transaction types and wallet is deterministic)
    # TODO: check revenue summaries are correct (once we have all transaction types and wallet is deterministic)

    echo PASS

    LOSS=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from aggregation, got unexpected loss of $LOSS"
    fi
    LOSS=`jq -r .total_bad_sig_loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from coins, got unexpected loss of $LOSS"
    fi
    LOSS=`jq -r .total_bad_sig_loss < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from reserves, got unexpected loss of $LOSS"
    fi

    echo -n "Test for wire amounts... "
    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_misattribution_in < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total misattribution in wrong, got $WIRED"
    fi
    echo PASS

    echo -n "Checking for unexpected arithmetic differences "
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from aggregations, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from aggregation, got unexpected minus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from coins, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from coins, got unexpected minus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from reserves, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from reserves, got unexpected minus of $LOSS"
    fi

    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-aggregation.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from aggregations detected in ordinary run"
    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from coins detected in ordinary run"
    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from reserves detected in ordinary run"
    echo PASS

    echo -n "Checking for unexpected wire out differences "
    jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > /dev/null && exit_fail "Unexpected wire out inconsistencies detected in ordinary run"
    echo PASS

    # cannot easily undo aggregator, hence full reload
    full_reload

}


# Run without aggregator, hence auditor should detect wire
# transfer lag!
function test_1() {

    echo "===========1: normal run==========="
    run_audit

    echo "Checking output"
    # if an emergency was detected, that is a bug and we should fail
    echo -n "Test for emergencies... "
    jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency detected in ordinary run" || echo PASS
    echo -n "Test for emergencies by count... "
    jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency by count detected in ordinary run" || echo PASS

    echo -n "Test for wire inconsistencies... "
    jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire out inconsistency detected in ordinary run"
    jq -e .reserve_in_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected reserve in inconsistency detected in ordinary run"
    jq -e .misattribution_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected misattribution inconsistency detected in ordinary run"
    jq -e .row_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected row inconsistency detected in ordinary run"
    jq -e .row_minor_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected minor row inconsistency detected in ordinary run"
    jq -e .wire_format_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire format inconsistencies detected in ordinary run"

    # TODO: check operation balances are correct (once we have all transaction types and wallet is deterministic)
    # TODO: check revenue summaries are correct (once we have all transaction types and wallet is deterministic)

    echo PASS

    echo -n "Test for wire amounts... "
    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_misattribution_in < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total misattribution in wrong, got $WIRED"
    fi

    # Database was unmodified, no need to undo
    echo "OK"
}



# Change recoup amount
function test_2() {

    echo "===========2: recoup amount inconsistency==========="
    echo "UPDATE exchange.recoup SET amount_val=5 WHERE recoup_uuid=1" | psql -Aqt $DB

    run_audit

    # Reserve balance is now wrong
    echo -n "Testing inconsistency detection... "
    AMOUNT=`jq -r .reserve_balance_summary_wrong_inconsistencies[0].auditor < test-audit-reserves.json`
    if test $AMOUNT != "TESTKUDOS:3"
    then
        exit_fail "Reserve auditor amount $AMOUNT is wrong"
    fi
    AMOUNT=`jq -r .reserve_balance_summary_wrong_inconsistencies[0].exchange < test-audit-reserves.json`
    if test $AMOUNT != "TESTKUDOS:0"
    then
        exit_fail "Reserve exchange amount $AMOUNT is wrong"
    fi
    # Coin spent exceeded coin's value
    AMOUNT=`jq -r .amount_arithmetic_inconsistencies[0].auditor < test-audit-coins.json`
    if test $AMOUNT != "TESTKUDOS:2"
    then
        exit_fail "Coin auditor amount $AMOUNT is wrong"
    fi
    AMOUNT=`jq -r .amount_arithmetic_inconsistencies[0].exchange < test-audit-coins.json`
    if test $AMOUNT != "TESTKUDOS:5"
    then
        exit_fail "Coin exchange amount $AMOUNT is wrong"
    fi
    echo OK

    # Undo database modification
    echo "UPDATE exchange.recoup SET amount_val=2 WHERE recoup_uuid=1" | psql -Aqt $DB

}


# Change recoup-refresh amount
function test_3() {

    echo "===========3: recoup-refresh amount inconsistency==========="
    echo "UPDATE exchange.recoup_refresh SET amount_val=5 WHERE recoup_refresh_uuid=1" | psql -Aqt $DB

    run_audit

    echo -n "Testing inconsistency detection... "
    # Coin spent exceeded coin's value
    AMOUNT=`jq -r .total_arithmetic_delta_minus < test-audit-coins.json`
    if test $AMOUNT != "TESTKUDOS:5"
    then
        exit_fail "Arithmetic delta minus amount $AMOUNT is wrong"
    fi
    AMOUNT=`jq -r .total_arithmetic_delta_plus < test-audit-coins.json`
    if test $AMOUNT != "TESTKUDOS:0"
    then
        exit_fail "Arithmetic delta plus amount $AMOUNT is wrong"
    fi
    echo OK

    # Undo database modification
    echo "UPDATE exchange.recoup_refresh SET amount_val=0 WHERE recoup_refresh_uuid=1" | psql -Aqt $DB

}


# Void recoup-refresh entry by 'unrevoking' denomination
function test_4() {

    echo "===========4: invalid recoup==========="
    echo "DELETE FROM exchange.denomination_revocations;" | psql -Aqt $DB

    run_audit

    echo -n "Testing inconsistency detection... "
    # Coin spent exceeded coin's value
    jq -e .bad_sig_losses[0] < test-audit-coins.json > /dev/null || exit_fail "Bad recoup not detected"
    AMOUNT=`jq -r .total_bad_sig_losses < test-audit-coins.json`
    if test $AMOUNT == "TESTKUDOS:0"
    then
        exit_fail "Total bad sig losses are wrong"
    fi
    TAB=`jq -r .row_inconsistencies[0].table < test-audit-reserves.json`
    if test $TAB != "recoup"
    then
        exit_fail "Wrong table for row inconsistency, got $TAB"
    fi
    echo OK

    # Undo database modification (can't easily undo DELETE, so full reload)
    full_reload

}





# *************** Main test loop starts here **************


# Run all the tests against the database given in $1.
# Sets $fail to 0 on success, non-zero on failure.
check_with_database()
{
    BASEDB=$1
    echo "Running test suite with database $BASEDB using configuration $CONF"

    # Setup database-specific globals
    MASTER_PUB=`cat ${BASEDB}.mpub`

    # Load database
    full_reload
    # Run test suite
    fail=0
    for i in $TESTS
    do
        test_$i
        if test 0 != $fail
        then
            break
        fi
    done
    # echo "Cleanup (disabled, leaving database $DB behind)"
    dropdb $DB
    rm -f test-audit.log test-wire-audit.log
}



# *************** Main logic starts here **************

# ####### Setup globals ######
# Postgres database to use (must match revoke-basedb.conf)
DB=taler-auditor-test

# Configuration file to use
CONF=revoke-basedb.conf

# test required commands exist
echo "Testing for jq"
jq -h > /dev/null || exit_skip "jq required"
echo "Testing for faketime"
faketime -h > /dev/null || exit_skip "faketime required"
echo "Testing for libeufin(-cli)"
libeufin-cli --help >/dev/null </dev/null || exit_skip "libeufin required"
echo "Testing for pdflatex"
which pdflatex > /dev/null </dev/null || exit_skip "pdflatex required"

echo "Testing for taler-wallet-cli"
taler-wallet-cli -h >/dev/null </dev/null 2>/dev/null || exit_skip "taler-wallet-cli required"
MYDIR=`mktemp -d /tmp/taler-auditor-basedbXXXXXX`
echo "Generating fresh database at $MYDIR"
if faketime -f '-1 d' ./generate-revoke-basedb.sh $MYDIR/basedb
then
    check_with_database $MYDIR/basedb
    if test x$fail != x0
    then
        exit $fail
    else
        echo "Cleaning up $MYDIR..."
        rm -rf $MYDIR || echo "Removing $MYDIR failed"
    fi
else
    echo "Generation failed"
fi

exit 0