travis: phpdbg added to allow_failures

Author: dg

.travis.yml

@@ -3,13 +3,20 @@ php:
     - 7.0
     - 7.1
 
+env:
 matrix:
     include:
         - php: 7.0
           env: dependencies="--prefer-lowest --prefer-stable"
+        - php: 7.0
+          env: coverage=on
+
+    allow_failures:
+        - php: 7.0
+          env: coverage=on
 
 script:
-    - vendor/bin/tester tests -s -c tests/php-unix.ini $coverage
+    - vendor/bin/tester tests -s -c tests/php-unix.ini $coverageArgs
     - php temp/code-checker/src/code-checker.php --short-arrays
 
 after_failure:
@@ -23,12 +30,12 @@ before_script:
     # Install Nette Tester & Code Checker
     - travis_retry composer update --no-interaction --prefer-dist $dependencies
     - travis_retry composer create-project nette/code-checker temp/code-checker ~2.5 --no-interaction
-    - if [ $TRAVIS_PHP_VERSION == "7.0" ]; then coverage="-p phpdbg --coverage ./coverage.xml --coverage-src ./src"; fi
+    - if [ "$coverage" == "on" ]; then coverageArgs="-p phpdbg --coverage ./coverage.xml --coverage-src ./src"; fi
 
 after_script:
     # Report Code Coverage
     - >
-      if [ "$coverage" != "" ]; then
+      if [ "$coverage" == "on" ]; then
       wget https://github.com/satooshi/php-coveralls/releases/download/v1.0.1/coveralls.phar
       && php coveralls.phar --verbose --config tests/.coveralls.yml
       || true; fi