REGTESTS: Add reg tests for the HTTP return action

2 reg tests have been added to ensure the HTTP return action is functionnal. A
reg test is about returning error files. The other one is about returning
default responses and responses based on string or file payloads.

reg-tests/http-errorfiles/http_return.vtc

@@ -0,0 +1,46 @@
+varnishtest "Test the HTTP return action with errorfiles"
+#REQUIRE_VERSION=2.2
+
+# This config tests the HTTP return action when error files are used to reply to
+# the client.
+
+feature ignore_unknown_macro
+
+haproxy h1 -conf {
+    http-errors errors-2
+        errorfile 400 ${testdir}/errors/400-2.http
+
+    defaults
+        mode http
+        timeout connect 1s
+        timeout client  1s
+        timeout server  1s
+
+    frontend fe1
+        bind "fd@${fe1}"
+        errorfile 400 ${testdir}/errors/400.http
+        http-request return status 400 default-errorfiles if { path /def }
+        http-request return status 400 errorfile ${testdir}/errors/400-1.http if { path /400-1 }
+        http-request return status 400 errorfiles errors-2 if { path /400-2 }
+} -start
+
+client c1  -connect ${h1_fe1_sock} {
+        txreq -req GET -url /def
+        rxresp
+        expect resp.status == 400
+	expect resp.http.x-err-type == "default"
+} -run
+
+client c1r2  -connect ${h1_fe1_sock} {
+        txreq -req GET -url /400-1
+        rxresp
+        expect resp.status == 400
+	expect resp.http.x-err-type == "errors-1"
+} -run
+
+client c1r3  -connect ${h1_fe1_sock} {
+        txreq -req GET -url /400-2
+        rxresp
+        expect resp.status == 400
+	expect resp.http.x-err-type == "errors-2"
+} -run

reg-tests/http-rules/1k.txt

@@ -0,0 +1,16 @@
+s313l7hzIJ5FIXCmpr+zAyFK80lNfjOIRNZSXJJn/GQVNQsBqDl3AFcb7JQt1ler
+KgBNE1LAiU02vTj4+hlW2qi4Xg1T3lshEOSSxJQN/ITQG/1KVmDiTtsjjSv8iWUj
+T403xvLKQd0FB2h00N9pwd9ApbGPYF8uG1kjnNQmzJOqQ2Pz7jUkNpF+sAAQHaRD
+ocjEucTsb676w8l9EqWNE+DK5IqoO2AK47bHbr4u38ZOwXjQWGw9MiUJZmVQEqdC
+QZlmpFuSKQiig1SZFZlmKVidf1genz6q+4BT80IFU2UE+pWiay/HcZttwM++eG7w
+n/Va7yd3D+ryK2j4rw0sOYM7Cu7AwleZeGEaCZINZmnVAWtg2OVFOTxx6jz8wNuY
+VJPb3VFD72WnnBhtbik5mEqjzVJy530sQBlGlcxi3Tivq69ZnAk55RBN0LO+jWf4
+DI4189LTIfY5WroA8AQeCCQYnzyXo5O/vDmic+uwKALlQ6TXzSuCNpHO8fL1UwHH
+7KBqxHi+/yYJ0431V/LAvRBpVFPYJ8iED7Md67GRVQWy8o+tgC1PmycJtS5ADQGO
+Jys46KjhL9cnaS3aP1YcuuGuSUOVMA7BjqPcz7r+hqYTCZ3akaY4w7AGRCZyRf8e
+finlAkgFpzKSFwaa2M6H3vUE14WzHC0hJ/bO2epjlcOeoMcgBVn5uUMYMVroAK0+
+vI9jg1RDV17oHberVmWj8VAXolDNS0pW2rt+JbqHsAVDDk/Ex3NJWFSYByHFyglQ
+cjYMwrzIsWC09ykW6WhUN6IsopLlDk7O2jcKaHxZ6WaFiVxIGFkepfNhf4wYZ6O9
+tjwMuOqTQtSjdP3MbbVEM6VpAkJW/Si1jmSW02ObMcdEpxJHTB9fC30waMM7e+T4
+FT/AlwB49un/3yYU2iUndW+wenoED9UkdbZ7uvjyu+UgQ3bMaQhX9Z9eHxhfi6Gy
+aRM2IJVeEpk5w0ifAQxrL4Wp+dFbzfGN1yPkI2UAo6WbWi63D

reg-tests/http-rules/http_return.vtc

@@ -0,0 +1,93 @@
+varnishtest "Test the HTTP return action"
+#REQUIRE_VERSION=2.2
+
+# This config tests the HTTP return action.
+
+feature ignore_unknown_macro
+
+haproxy h1 -conf {
+    defaults
+        mode http
+        timeout connect 1s
+        timeout client  1s
+        timeout server  1s
+
+    frontend fe1
+        bind "fd@${fe1}"
+        http-request return if { path /def-1 }
+        http-request return hdr "x-custom-hdr" "%[url]" if { path /def-2 }
+        http-request return status 403 if { path /def-3 }
+        http-request return content-type "text/plain" if { path /def-4 }
+
+        http-request return content-type "text/plain" string "hello" hdr "x-custom-hdr" "%[url]"  if { path /string }
+        http-request return content-type "text/plain" lf-string "path is %[url]" hdr "x-custom-hdr" "%[url]"  if { path /lf-string }
+        http-request return content-type "text/plain" file /dev/null hdr "x-custom-hdr" "%[url]"  if { path /empty-file }
+        http-request return content-type "text/plain" file ${testdir}/1k.txt hdr "x-custom-hdr" "%[url]"  if { path /file }
+        http-request return content-type "text/plain" lf-file ${testdir}/lf-file.txt hdr "x-custom-hdr" "%[url]"  if { path /lf-file }
+} -start
+
+client c1  -connect ${h1_fe1_sock} {
+        txreq -req GET -url /def-1
+        rxresp
+        expect resp.status == 200
+        expect resp.http.content-length == 0
+        expect resp.http.content-type == <undef>
+        expect resp.http.x-custom-hdr == <undef>
+
+        txreq -req GET -url /def-2
+        rxresp
+        expect resp.status == 200
+        expect resp.http.content-length == 0
+        expect resp.http.content-type == <undef>
+        expect resp.http.x-custom-hdr == "/def-2"
+
+        txreq -req GET -url /def-3
+        rxresp
+        expect resp.status == 403
+        expect resp.http.content-length == 0
+        expect resp.http.content-type == <undef>
+
+        txreq -req GET -url /def-4
+        rxresp
+        expect resp.status == 200
+        expect resp.http.content-length == 0
+        expect resp.http.content-type == <undef>
+
+        txreq -req GET -url /string
+        rxresp
+        expect resp.status == 200
+        expect resp.http.content-length == 5
+        expect resp.http.content-type == "text/plain"
+        expect resp.http.x-custom-hdr == "/string"
+        expect resp.body == "hello"
+
+        txreq -req GET -url /lf-string
+        rxresp
+        expect resp.status == 200
+        expect resp.http.content-length == 18
+        expect resp.http.content-type == "text/plain"
+        expect resp.http.x-custom-hdr == "/lf-string"
+        expect resp.body == "path is /lf-string"
+
+        txreq -req GET -url /empty-file
+        rxresp
+        expect resp.status == 200
+        expect resp.http.content-length == 0
+        expect resp.http.content-type == <undef>
+        expect resp.http.x-custom-hdr == "/empty-file"
+
+        txreq -req GET -url /file
+        rxresp
+        expect resp.status == 200
+        expect resp.http.content-length == 1024
+        expect resp.http.content-type == "text/plain"
+        expect resp.http.x-custom-hdr == "/file"
+
+        txreq -req GET -url /lf-file
+        rxresp
+        expect resp.status == 200
+        expect resp.http.content-length == 17
+        expect resp.http.content-type == "text/plain"
+        expect resp.http.x-custom-hdr == "/lf-file"
+        expect resp.body == "path is /lf-file\n"
+} -run

reg-tests/http-rules/lf-file.txt

@@ -0,0 +1 @@
+path is %[url]