fix for build error in integration test random.cpp

.travis.yml

@@ -2,7 +2,7 @@ language: node_js
 before_install:
   - sudo apt-get update
 install:
-  - cd .. && $TRAVIS_BUILD_DIR/ci/clone_repos.sh $TRAVIS_BRANCH $TRAVIS_BRANCH && cd $TRAVIS_BUILD_DIR
+  - cd .. && $TRAVIS_BUILD_DIR/ci/clone_repos.sh master master && cd $TRAVIS_BUILD_DIR
   - npm install -g spark-cli
   - ./ci/install_arm_gcc.sh && ./ci/install_gcc.sh
   - ./ci/create_spark_cli_json.sh

tests/core-v1/testapp1/random.cpp

@@ -1,8 +1,9 @@
+#include <stdlib.h>
+#include <array>
 #include "application.h"
 #include "unit-test/unit-test.h"
-#include <array>
-#include <stdlib.h>
 
+// the headers have to be declared in this order, or the #define min() in the spark wiring clashes with std::min)
 
 template <std::size_t size> void fillBuf(std::array<int, size>& buf, int min, int max) {
     int count = size;

tests/libraries/unit-test/SparkParty.cpp

@@ -18,6 +18,7 @@ class PrintTee : public Print {
     virtual size_t write(uint8_t w) {
         p1.write(w);
         p2.write(w);
+        return 1;
     }
 
     virtual size_t write(const uint8_t *buffer, size_t size) {