Capture PHPUnit reports

Depends on GitLab 11.2.

Fixes #3

.gitlab-ci.yml

@@ -32,6 +32,9 @@ PHPunit:PHP5.3:MySQL:
     - find . -type "f" -iname "*.php" | xargs -L "1" php -l
     - phpcs -n
     - phpunit
+  artifacts:
+    reports:
+      junit: /tmp/wordpress-tests-lib/tests/phpunit/build/logs/junit.xml
 
 PHPunit:PHP5.6:MySQL:
   image: containers.ethitter.com:443/docker/images/php:5.6
@@ -41,6 +44,9 @@ PHPunit:PHP5.6:MySQL:
     - find . -type "f" -iname "*.php" | xargs -L "1" php -l
     - phpcs -n
     - phpunit
+  artifacts:
+    reports:
+      junit: /tmp/wordpress-tests-lib/tests/phpunit/build/logs/junit.xml
 
 PHPunit:PHP7.0:MySQL:
   image: containers.ethitter.com:443/docker/images/php:7.0
@@ -50,6 +56,9 @@ PHPunit:PHP7.0:MySQL:
     - find . -type "f" -iname "*.php" | xargs -L "1" php -l
     - phpcs -n
     - phpunit
+  artifacts:
+    reports:
+      junit: /tmp/wordpress-tests-lib/tests/phpunit/build/logs/junit.xml
 
 PHPunit:PHP7.1:MySQL:
   image: containers.ethitter.com:443/docker/images/php:7.1
@@ -59,6 +68,9 @@ PHPunit:PHP7.1:MySQL:
     - find . -type "f" -iname "*.php" | xargs -L "1" php -l
     - phpcs -n
     - phpunit
+  artifacts:
+    reports:
+      junit: /tmp/wordpress-tests-lib/tests/phpunit/build/logs/junit.xml
 
 PHPunit:PHP7.2:MySQL:
   image: containers.ethitter.com:443/docker/images/php:7.2
@@ -68,3 +80,6 @@ PHPunit:PHP7.2:MySQL:
     - find . -type "f" -iname "*.php" | xargs -L "1" php -l
     - phpcs -n
     - phpunit
+  artifacts:
+    reports:
+      junit: /tmp/wordpress-tests-lib/tests/phpunit/build/logs/junit.xml