[TD-2598] feature: C# taosdemo, move test case early.

.travis.yml

@@ -60,6 +60,15 @@ matrix:
           pip3 install guppy3
           pip3 install --user ${TRAVIS_BUILD_DIR}/src/connector/python/linux/python3/
 
+          cd ${TRAVIS_BUILD_DIR}/tests/examples/C#/taosdemo
+          mcs -out:taosdemo *.cs || travis_terminate $?
+          pkill -TERM -x taosd
+          fuser -k -n tcp 6030
+          sleep 1
+          taosd > /dev/null &
+          sleep 1
+          mono taosdemo -Q DEFAULT -y || travis_terminate $?
+
           cd ${TRAVIS_BUILD_DIR}/tests
           ./test-all.sh smoke || travis_terminate $?
           sleep 1
@@ -75,14 +84,6 @@ matrix:
           ./valgrind-test.sh 2>&1 > mem-error-out.log
           sleep 1
 
-          cd ${TRAVIS_BUILD_DIR}/tests/examples/C#/taosdemo
-          mcs -out:taosdemo *.cs || travis_terminate $?
-          pkill -TERM -x taosd
-          fuser -k -n tcp 6030
-          sleep 1
-          taosd > /dev/null &
-          sleep 1
-          mono taosdemo -Q DEFAULT -y || travis_terminate $?
 
           # Color setting
           RED='\033[0;31m'