diff --git a/tests/config5/etc/wmbusmeters.d/Vatten b/tests/config5/etc/wmbusmeters.d/Vatten
index 6ea39b3..be41515 100644
--- a/tests/config5/etc/wmbusmeters.d/Vatten
+++ b/tests/config5/etc/wmbusmeters.d/Vatten
@@ -2,4 +2,4 @@ name=Vatten
 type=supercom587
 id=12345678
 key=
-shell=echo "TESTING SHELL $METER_JSON" > /tmp/wmbusmeters_meter_shell_test
\ No newline at end of file
+shell=echo "TESTING SHELL $(echo $METER_JSON | jq -c --sort-keys .)" > /tmp/wmbusmeters_meter_shell_test
\ No newline at end of file
diff --git a/tests/test_aes.sh b/tests/test_aes.sh
index 934ef82..cb9808c 100755
--- a/tests/test_aes.sh
+++ b/tests/test_aes.sh
@@ -10,14 +10,14 @@ mkdir -p $TEST
 TESTNAME="Test aes encrypted telegrams"
 TESTRESULT="ERROR"
 
-cat simulations/serial_aes.msg | grep '^{' | tr -d '#' > $TEST/test_expected.txt
+cat simulations/serial_aes.msg | grep '^{' | tr -d '#' | jq --sort-keys . > $TEST/test_expected.txt
 cat simulations/serial_aes.msg | grep '^[CT]' | tr -d '#' > $TEST/test_input.txt
 cat $TEST/test_input.txt | $PROG --format=json "stdin:rtlwmbus" \
       ApWater apator162   88888888 00000000000000000000000000000000 \
       Vatten  multical21  76348799 28F64A24988064A079AA2C807D6102AE \
-      Wasser  supercom587 77777777 5065747220486F6C79737A6577736B69 > $TEST/test_output.txt 2> $TEST/test_stderr.txt
+      Wasser  supercom587 77777777 5065747220486F6C79737A6577736B69  2> $TEST/test_stderr.txt | jq --sort-keys . > $TEST/test_output.txt
 
-cat $TEST/test_output.txt | sed 's/"timestamp":"....-..-..T..:..:..Z"/"timestamp":"1111-11-11T11:11:11Z"/' > $TEST/test_response.txt
+cat $TEST/test_output.txt | sed 's/"timestamp": "....-..-..T..:..:..Z"/"timestamp": "1111-11-11T11:11:11Z"/' > $TEST/test_response.txt
 diff $TEST/test_expected.txt $TEST/test_response.txt
 if [ "$?" = "0" ]
 then
diff --git a/tests/test_apas.sh b/tests/test_apas.sh
index 0497332..7e1263f 100755
--- a/tests/test_apas.sh
+++ b/tests/test_apas.sh
@@ -18,11 +18,11 @@ METERS="Wasser      apator162   20202020 NOKEY
       MyTapWatere apator162   27202020 NOKEY
       MyTapWaterf apator162   03410514 NOKEY"
 
-cat simulations/simulation_apas.txt | grep '^{' > $TEST/test_expected.txt
-$PROG --format=json simulations/simulation_apas.txt $METERS  > $TEST/test_output.txt 2> $TEST/test_stderr.txt
+cat simulations/simulation_apas.txt | grep '^{' | jq --sort-keys . > $TEST/test_expected.txt
+$PROG --format=json simulations/simulation_apas.txt $METERS 2> $TEST/test_stderr.txt | jq --sort-keys . > $TEST/test_output.txt
 if [ "$?" = "0" ]
 then
-    cat $TEST/test_output.txt | sed 's/"timestamp":"....-..-..T..:..:..Z"/"timestamp":"1111-11-11T11:11:11Z"/' > $TEST/test_responses.txt
+    cat $TEST/test_output.txt | sed 's/"timestamp": "....-..-..T..:..:..Z"/"timestamp": "1111-11-11T11:11:11Z"/' > $TEST/test_responses.txt
     diff $TEST/test_expected.txt $TEST/test_responses.txt
     if [ "$?" = "0" ]
     then
diff --git a/tests/test_izars.sh b/tests/test_izars.sh
index 2137740..5ed1460 100755
--- a/tests/test_izars.sh
+++ b/tests/test_izars.sh
@@ -20,11 +20,11 @@ METERS="IzarWater   izar        21242472 NOKEY
         IzarWater5  izar        20e4ffde NOKEY
         IzarWater6  auto        48500375 NOKEY"
 
-cat simulations/simulation_izars.txt | grep '^{' > $TEST/test_expected.txt
-$PROG --format=json simulations/simulation_izars.txt $METERS > $TEST/test_output.txt 2> $TEST/test_stderr.txt
+cat simulations/simulation_izars.txt | grep '^{' | jq --sort-keys . > $TEST/test_expected.txt
+$PROG --format=json simulations/simulation_izars.txt $METERS  2> $TEST/test_stderr.txt | jq --sort-keys . > $TEST/test_output.txt
 if [ "$?" = "0" ]
 then
-    cat $TEST/test_output.txt | sed 's/"timestamp":"....-..-..T..:..:..Z"/"timestamp":"1111-11-11T11:11:11Z"/' > $TEST/test_responses.txt
+    cat $TEST/test_output.txt | sed 's/"timestamp": "....-..-..T..:..:..Z"/"timestamp": "1111-11-11T11:11:11Z"/' > $TEST/test_responses.txt
     diff $TEST/test_expected.txt $TEST/test_responses.txt
     if [ "$?" = "0" ]
     then
diff --git a/tests/test_key_warnings.sh b/tests/test_key_warnings.sh
index b40a8a9..98636a8 100755
--- a/tests/test_key_warnings.sh
+++ b/tests/test_key_warnings.sh
@@ -8,7 +8,8 @@ TEST=testoutput
 TESTNAME="Test that failed decryption warning only prints once."
 TESTRESULT="OK"
 
-$PROG --format=json simulations/simulation_bad_keys.txt room fhkvdataiv 03065716 NOKEY > $TEST/test_output.txt 2> $TEST/test_stderr.txt
+$PROG --format=json simulations/simulation_bad_keys.txt room fhkvdataiv 03065716 NOKEY \
+      2> $TEST/test_stderr.txt | jq --sort-keys . > $TEST/test_output.txt
 
 cat > $TEST/expected_err.txt <<EOF
 (wmbus) WARNING! no key to decrypt payload! Permanently ignoring telegrams from id: 03065716 mfct: (TCH) Techem Service (0x5068) type: Heat Cost Allocator (0x08) ver: 0x94
@@ -21,7 +22,8 @@ then
     TESTRESULT="ERROR"
 fi
 
-$PROG --format=json simulations/simulation_bad_keys.txt room fhkvdataiv 03065716 00112233445566778899AABBCCDDEEFF > $TEST/test_output.txt 2> $TEST/test_stderr.txt
+$PROG --format=json simulations/simulation_bad_keys.txt room fhkvdataiv 03065716 00112233445566778899AABBCCDDEEFF \
+      2> $TEST/test_stderr.txt | jq --sort-keys . > $TEST/test_output.txt
 
 cat > $TEST/expected_err.txt <<EOF
 (wmbus) WARNING!! decrypted content failed check, did you use the correct decryption key? Permanently ignoring telegrams from id: 03065716 mfct: (TCH) Techem Service (0x5068) type: Heat Cost Allocator (0x08) ver: 0x94
diff --git a/tests/test_shell.sh b/tests/test_shell.sh
index 3114585..f080262 100755
--- a/tests/test_shell.sh
+++ b/tests/test_shell.sh
@@ -8,11 +8,13 @@ TEST=testoutput
 TESTNAME="Test shell invocation"
 TESTRESULT="ERROR"
 
-$PROG --shell='echo "$METER_JSON"' simulations/simulation_shell.txt MWW supercom587 12345678 "" > $TEST/test_output.txt 2> $TEST/test_stderr.txt
+$PROG --shell='echo "$METER_JSON"' simulations/simulation_shell.txt MWW supercom587 12345678 "" \
+      2> $TEST/test_stderr.txt | jq --sort-keys . > $TEST/test_output.txt
 if [ "$?" = "0" ]
 then
-    cat $TEST/test_output.txt | sed 's/"timestamp":"....-..-..T..:..:..Z"/"timestamp":"1111-11-11T11:11:11Z"/' > $TEST/test_responses.txt
-    echo '{"media":"warm water","meter":"supercom587","name":"MWW","id":"12345678","total_m3":5.548,"timestamp":"1111-11-11T11:11:11Z"}' > $TEST/test_expected.txt
+    cat $TEST/test_output.txt | sed 's/"timestamp": "....-..-..T..:..:..Z"/"timestamp": "1111-11-11T11:11:11Z"/' > $TEST/test_responses.txt
+    echo '{"media":"warm water","meter":"supercom587","name":"MWW","id":"12345678","total_m3":5.548,"timestamp":"1111-11-11T11:11:11Z"}' \
+         | jq --sort-keys . > $TEST/test_expected.txt
     diff $TEST/test_expected.txt $TEST/test_responses.txt
     if [ "$?" = "0" ]
     then
diff --git a/tests/test_shell2.sh b/tests/test_shell2.sh
index 43ccbfb..a3101da 100755
--- a/tests/test_shell2.sh
+++ b/tests/test_shell2.sh
@@ -7,16 +7,19 @@ mkdir -p $TEST
 TESTNAME="Test shell in config file"
 TESTRESULT="ERROR"
 
-$PROG --useconfig=tests/config5 > $TEST/test_output.txt 2> $TEST/test_stderr.txt
+$PROG --useconfig=tests/config5 2> $TEST/test_stderr.txt > $TEST/test_output.txt
 
 if [ "$?" = "0" ]
 then
     INFO=$(cat /tmp/wmbusmeters_meter_shell_test | sed 's/"timestamp":"....-..-..T..:..:..Z"/"timestamp":"1111-11-11T11:11:11Z"/')
-    EXPECTED=$(echo 'TESTING SHELL {"media":"warm water","meter":"supercom587","name":"Vatten","id":"12345678","total_m3":5.548,"timestamp":"1111-11-11T11:11:11Z"}')
+    EXPECTED='TESTING SHELL {"id":"12345678","media":"warm water","meter":"supercom587","name":"Vatten","timestamp":"1111-11-11T11:11:11Z","total_m3":5.548}'
     if [ "$INFO" = "$EXPECTED" ]
     then
         echo OK: $TESTNAME
         TESTRESULT="OK"
+    else
+        echo "Expected: $EXPECTED"
+        echo "Got     : $INFO"
     fi
 fi