diff --git a/tests/test_auction_flow.sh b/tests/test_auction_flow.sh
index e1d64be..822f809 100755
--- a/tests/test_auction_flow.sh
+++ b/tests/test_auction_flow.sh
@@ -4,11 +4,33 @@
 HERE=$(cd $(dirname $BASH_SOURCE) && pwd)
 source $HERE/testutil.sh
 
-cosmos-testd tx cosmostest new-bid 0 800 \
-    -y --from alice \
-    | expect_fail "Can't create bids for nonexistent auctions"
-
-cosmos-testd tx cosmostest new-auction asdf asdf 100 token 1662155879 \
+cosmos-testd tx cosmostest new-auction asdf asdf 500 token 1662155879 \
     -y --from bob \
     | expect_success "New auction is created"
 
+cosmos-testd tx cosmostest new-bid $(get_last_auction_index) 100 \
+    -y --from alice \
+    | expect_success "New bid is correctly created"
+
+cosmos-testd tx cosmostest new-bid $(get_last_auction_index) 100 \
+    -y --from alice \
+    | expect_fail "Can't create duplicate bids"
+
+cosmos-testd tx cosmostest new-bid $(get_next_auction_index) 100 \
+    -y --from alice \
+    | expect_fail "Can't create bids for nonexistent auctions"
+
+cosmos-testd tx cosmostest new-bid $(get_last_auction_index) 600 \
+    -y --from alice \
+    | expect_fail "Can't bid over price ceiling"
+
+cosmos-testd tx cosmostest new-bid $(get_last_auction_index) 0 \
+    -y --from alice \
+    | expect_fail "Can't bid 0 tokens"
+
+log_info "Waiting until auction expires..."
+sleep 10
+
+cosmos-testd tx cosmostest new-bid $(get_last_auction_index) 100 \
+    -y --from alice \
+    | expect_fail "Can't add bids after auction expiry"
diff --git a/tests/testutil.sh b/tests/testutil.sh
index 7f6ed51..f28f4ed 100644
--- a/tests/testutil.sh
+++ b/tests/testutil.sh
@@ -19,12 +19,12 @@ function assert_eq {
 
 # Get balance of an account.
 function get_balance {
-    addr=$1
-    denom=$2
+    local addr=$1
+    local denom=$2
     return \
     $(
         curl http://0.0.0.0:1317/cosmos/bank/v1beta1/balances/$addr/by_denom?denom=$denom \
-        | jq -M ".balance.amount"
+        | jq -M ".balance.amount | tonumber"
     )
 }
 
@@ -33,21 +33,30 @@ function get_block_time {
     return \
     $(
         curl http://0.0.0.0:1317/cosmos/base/tendermint/v1beta1/blocks/latest \
-        | jq -M ".blocks.header.height"
+        | jq -M ".blocks.header.height | tonumber"
     )
 }
 
 function get_code {
-    read out
+    read -r out
     return $out | grep code: | awk -F ': ' '{print $2}'
 }
 
 function get_key {
-    local out=$1
+    read -r out
     local filter=$2
     echo $out | jq -M $filter
 }
 
+function get_last_auction_index {
+    res=$(cosmos-testd q cosmostest show-next-auction | jq -M ".NextAuction.auctionId | tonumber")
+    echo "$res-1" | bc
+}
+
+function get_next_auction_index {
+    cosmos-testd q cosmostest show-next-auction | jq -M ".NextAuction.auctionId | tonumber"
+}
+
 function now {
     local op=$1
     local amount=$2
@@ -59,14 +68,14 @@ function now {
 }
 
 function expect_success {
-    read out
+    read -r out
     local msg=${1:-Expect transaction to succeed}
-    # if we want to pipe:
-    # read out
-    # local res=$(echo $out | grep code: | awk -F ': ' '{print $2}')
-    # local raw_log=$(echo $out | awk -F ': ' '{print $2}')
     local res=$(echo $out | jq -M ".code")
     local raw_log=$(echo $out | jq -M ".raw_log")
+
+    # globally write response key
+    # response=$(echo $out | jq -M ".")
+
     if [[ $res = 0 ]]; then
         log_ok
         echo $msg
@@ -79,9 +88,8 @@ function expect_success {
 }
 
 function expect_fail {
-    read out
+    read -r out
     local msg=${1:-Expect transaction to revert}
-    # local res=$(echo $out | grep code: | awk -F ': ' '{print $2}')
     local res=$(echo $out | jq -M ".code")
     if [[ $res = 0 ]]; then
         log_fail
@@ -93,6 +101,10 @@ function expect_fail {
     fi
 }
 
+function log_info {
+    printf "[INFO]\t$1\n"
+}
+
 function log_test {
     printf "$(fmt_cyan [TEST])\t$1\n"
 }