Fix tests for hhvm and php 7.0

.dockerignore

@@ -0,0 +1,2 @@
+/composer.lock
+/vendor

Dockerfile_5.6

@@ -0,0 +1,15 @@
+FROM php:5.6-cli
+
+WORKDIR /usr/src/myapp
+
+RUN apt-get update && apt-get install -y \
+    git \
+    && curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+COPY composer.json /usr/src/myapp
+RUN composer install
+
+COPY . /usr/src/myapp
+CMD [ "./vendor/bin/phpunit" ]
+
+# docker build -t diff-match-patch:5.6 -f ./Dockerfile_5.6 .
+# docker run -it --rm diff-match-patch:5.6

Dockerfile_7.0

@@ -0,0 +1,15 @@
+FROM php:7.0-cli
+
+WORKDIR /usr/src/myapp
+
+RUN apt-get update && apt-get install -y \
+    git \
+    && curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+COPY composer.json /usr/src/myapp
+RUN composer install
+
+COPY . /usr/src/myapp
+CMD [ "./vendor/bin/phpunit" ]
+
+# docker build -t diff-match-patch:7.0 -f ./Dockerfile_7.0 .
+# docker run -it --rm diff-match-patch:7.0

Dockerfile_hhvm

@@ -0,0 +1,16 @@
+FROM diegomarangoni/hhvm:cli
+
+WORKDIR /usr/src/myapp
+
+RUN apt-get update && apt-get install -y \
+    git \
+    curl \
+    && curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+COPY composer.json /usr/src/myapp
+RUN composer install
+
+COPY . /usr/src/myapp
+CMD ["./vendor/bin/phpunit" ]
+
+# docker build -t diff-match-patch:hhvm -f ./Dockerfile_hhvm .
+# docker run -it --rm diff-match-patch:hhvm

composer.json

@@ -22,7 +22,7 @@
         "lib-iconv": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "3.7.*"
+        "phpunit/phpunit": "5.*"
     },
     "autoload": {
         "psr-4": {