Run make unit from Travis

Author: smowton

.travis.yml

@@ -110,6 +110,8 @@ script:
     # Compile in host machine/container & run tests in host machine/container
     if [ -L bin/gcc ] ; then export PATH=$PWD/bin:$PATH ; fi ;
     COMMAND="make -C src CXX=\"$COMPILER\" CXXFLAGS=\"-Wall -O2 -g -Werror -Wno-deprecated-register -pedantic -Wno-sign-compare -DUSE_BOOST\"" &&
+    eval ${PRE_COMMAND} ${COMMAND} &&
+    COMMAND="make -C unit test CXX=\"$COMPILER\" CXXFLAGS=\"-Wall -O2 -g -Werror -Wno-deprecated-register -pedantic -Wno-sign-compare -DUSE_BOOST\"" &&
     eval ${PRE_COMMAND} ${COMMAND}
 
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