Add multi file test

Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine:3.11
 
-RUN apk --no-cache add bash=~5.0 curl=~7.67 ca-certificates=~20191127
+RUN apk --no-cache add bash=~5.0 curl=~7.79 ca-certificates=~20191127
 COPY push.sh /bin/
 RUN chmod +x /bin/push.sh
 

tests/docker-compose-private.yml

@@ -12,9 +12,9 @@ services:
       context: ../
       dockerfile: Dockerfile
     volumes:
-      - './test.txt:/test.txt'
+      - '.:/test'
     environment:
-      PLUGIN_FILE: '/test.txt'
+      PLUGIN_FILE: '/test/test{1,2}.txt'
       PLUGIN_DESTINATION: 'http://webdav/'
       PLUGIN_USERNAME: jdoe
       PLUGIN_PASSWORD: hunter2

tests/docker-compose-public.yml

@@ -9,9 +9,9 @@ services:
       context: ../
       dockerfile: Dockerfile
     volumes:
-      - './test.txt:/test.txt'
+      - '.:/test'
     environment:
-      PLUGIN_FILE: '/test.txt'
+      PLUGIN_FILE: '/test/test{1,2}.txt'
       PLUGIN_DESTINATION: 'http://webdav/'
       PLUGIN_TIMEOUT: 10
       PLUGIN_ATTEMPTS: 4

tests/test2.txt

@@ -0,0 +1 @@
+ohai