Add test case for multiple consecutive payments

test/test04_payments_ldknode_stability.bats

@@ -0,0 +1,51 @@
+#!/usr/bin/env bats
+
+# set -eo pipefail
+# set -x
+
+setup() {
+    load 'test_helper/common-setup'
+    _common_setup
+
+    source "$PROJECT_ROOT/test/functions.sh"
+
+    TEST_COUNT=10
+    SUCCESS_COUNT=0
+}
+
+increment_success_count() {
+    (( ++SUCCESS_COUNT ))
+}
+
+print_success_count() {
+    echo "$SUCCESS_COUNT"
+}
+
+get_offer() {
+    OFFER=$(generate_offer_ldknode 'ldknode2')
+}
+
+print_offer() {
+    echo $OFFER
+}
+
+attempt() {
+    $PROJECT_ROOT/bin/lndk-cli lndk1 pay-offer $OFFER 5000000
+}
+
+@test "Multiple consecutive payments to LDK Node (lnd1 -> lnd2 -> ldknode2 x $TEST_COUNT)" {
+
+    get_offer
+    run print_offer
+
+    for i in $(seq 1 $TEST_COUNT)
+    do
+        run attempt
+        if [[ "${lines[0]}" =~ "Successfully paid for offer!" ]]; then
+            increment_success_count
+        fi
+    done
+
+    run print_success_count
+    assert_equal $SUCCESS_COUNT $TEST_COUNT
+}