Add test environment for macOS 10.14

- Small tweaks in test script

Signed-off-by: Thomas Lauf <thomas.lauf@tngtech.com>

.travis.yml

@@ -38,8 +38,13 @@ matrix:
       os: linux
       env: CONTAINER=archlinux
       services: docker
-    - name: "Mac OS X 10.13"
+    - name: "macOS 10.13"
       os: osx
+      osx_image: xcode9.4
+      env: CONTAINER=osx
+    - name: "macOS 10.14"
+      os: osx
+      osx_image: xcode10.3
       env: CONTAINER=osx
 install:
   # Build the docker container

test/scripts/test_osx.sh

@@ -12,8 +12,8 @@ make -j2
 make install
 timew --version
 
-pushd test
+pushd test || exit
 make
 ./run_all -v
-cat all.log | grep 'not ok'
+grep 'not ok' all.log
 ./problems