Added dockerfile for tests.

It is now possible to run testsuite in docker, using supplied file.
See instructions in t/README.

Tests are adjusted to run on alpine linux which includes modular builds
of openldap server software.

Dockerfile.test

+FROM python:2-alpine
+
+WORKDIR /usr/src/app/
+COPY nginx-ldap-auth-daemon.py /usr/src/app/
+
+WORKDIR /tests
+COPY t/ldap-auth.t /tests
+COPY t/runtests.sh /tests
+
+# Install required software
+RUN \
+    apk --no-cache add openldap-dev && \
+    apk --no-cache add openldap && \
+    apk --no-cache add openldap-back-hdb && \
+    apk --no-cache add openldap-clients && \
+    apk --no-cache add openssl && \
+    apk --no-cache add nginx && \
+    apk --no-cache add nginx-mod-http-geoip && \
+    apk --no-cache add nginx-mod-stream-geoip && \
+    apk --no-cache add nginx-mod-http-image-filter && \
+    apk --no-cache add nginx-mod-stream && \
+    apk --no-cache add nginx-mod-mail && \
+    apk --no-cache add nginx-mod-http-perl && \
+    apk --no-cache add nginx-mod-http-xslt-filter && \
+    apk --no-cache add mercurial && \
+    apk --no-cache add perl && \
+    apk --no-cache add --virtual build-dependencies build-base && \
+    pip install python-ldap && \
+    pip install coverage && \
+    apk del build-dependencies
+
+
+# Install tests
+RUN \
+    cd /tests && \
+    hg clone https://hg.nginx.org/nginx-tests && \
+    mv ldap-auth.t nginx-tests
+
+WORKDIR /usr/src/app/
+
+ENV TEST_LDAP_DAEMON=/usr/sbin/slapd
+ENV TEST_LDAP_AUTH_DAEMON=/usr/src/app/nginx-ldap-auth-daemon.py
+ENV TEST_NGINX_BINARY=/usr/sbin/nginx
+ENV TEST_NGINX_MODULES=/usr/lib/nginx/modules
+ENV LDAPTLS_REQCERT=never
+
+WORKDIR /tests/nginx-tests
+
+CMD ["/tests/runtests.sh"]

t/README

+To run tests use supplied Dockerfile.test:
+
+docker build -f Dockerfile.test -t my-tag .
+docker run my-tag
+
+To run without Docker:
+
 Test suite is available at http://hg.nginx.org/nginx-tests.
 Check the http://hg.nginx.org/nginx-tests/file/tip/README file
 for instructions on how to use it.

t/ldap-auth.t

@@ -264,6 +264,7 @@ access to *
   by users read
   by anonymous read
 
+moduleload     back_hdb
 database hdb
 suffix "dc=test,dc=local"
 rootdn "cn=root,dc=test,dc=local"
@@ -298,6 +299,7 @@ access to *
   by users read
   by anonymous read
 
+moduleload     back_hdb
 database hdb
 suffix "ou=Users, dc=test,dc=local"
 rootdn "cn=root, ou=Users, dc=test,dc=local"

t/runtests.sh

+#!/bin/sh
+
+# shell script to start testsuite and run coverage
+# to be executed as Dockerfile CMD
+
+export TEST_NGINX_LEAVE=1
+rm -rf /tmp/nginx-test-*
+
+perl ldap-auth.t
+
+testdir=$(find /tmp -name 'nginx-test-*' -print -quit)
+cd $testdir
+coverage2 html && printf "Coverage report: docker cp <cid>:$testdir/htmlcov <hostdir>\n"