WIP run test in dockerfile

Author: akomm

.dockerignore

@@ -0,0 +1,10 @@
+/*
+!/lib/
+!/src/
+!/tests/
+!/benchmarks/
+!/composer.json
+!/phpunit.xml.*
+!/phpstan.neon.*
+!/.php_cs.*
+!/phpbench.json

CONTRIBUTING.md

@@ -18,6 +18,12 @@ You can run the tests by calling:
 composer test
 ```
 
+Or with docker:
+
+```bash
+docker build . -t graphql-test && docker image prune -f >/dev/null && docker run --rm graphql-test test
+```
+
 Code quality
 ---------------------------
 
@@ -27,6 +33,12 @@ Checking code standard, benchmark, and more.
 composer code-quality
 ```
 
+Or with docker:
+
+```bash
+docker build . -t graphql-test && docker image prune -f >/dev/null && docker run --rm graphql-test code-quality
+```
+
 Coding Standard
 ----------------
 

Dockerfile

@@ -0,0 +1,54 @@
+FROM scratch AS composer_install_requirements
+
+COPY composer.json /
+
+FROM scratch AS test_source
+
+COPY benchmarks/ benchmarks/
+COPY lib/ /lib/
+COPY src/ /src/
+COPY tests/ /tests/
+COPY phpunit.xml.* phpstan.neon.* .php_cs.* phpbench.json /
+
+FROM alpine:3.9
+
+# alpine php package does not include default extensions, be explicit
+RUN set -eu; \
+    apk add --no-cache \
+        php7 \
+        php7-iconv \
+        php7-json \
+        php7-mbstring \
+        php7-openssl \
+        php7-phar \
+        php7-tokenizer \
+        php7-xml \
+        php7-xmlwriter \
+        php7-dom \
+    ;
+
+RUN set -eu; \
+    php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"; \
+    EXPECTED_SIGNATURE="$(wget -q -O - https://composer.github.io/installer.sig)"; \
+    ACTUAL_SIGNATURE="$(php -r "echo hash_file('sha384', 'composer-setup.php');")"; \
+    \
+    if [ "$EXPECTED_SIGNATURE" != "$ACTUAL_SIGNATURE" ]; then \
+        >&2 echo 'ERROR: Invalid installer signature'; \
+        rm composer-setup.php; \
+        exit 1; \
+    fi; \
+    \
+    php composer-setup.php --install-dir=/usr/local/bin --filename=composer; \
+    rm composer-setup.php
+
+WORKDIR /opt/test
+
+COPY --from=composer_install_requirements / .
+
+RUN composer install
+
+COPY --from=test_source / .
+
+RUN echo "memory_limit=1G" > /etc/php7/conf.d/99-custom.ini
+
+ENTRYPOINT ["composer"]