diff --git a/reg-tests/http-rules/h00000.vtc b/reg-tests/http-rules/h00000.vtc
new file mode 100644
index 0000000..252408f
--- /dev/null
+++ b/reg-tests/http-rules/h00000.vtc
@@ -0,0 +1,187 @@
+varnishtest "Composite HTTP manipulation test"
+#REQUIRE_VERSION=1.6
+
+# This config tests several http-request features and their interactions.
+# It extracts some samples, places them into variables, modifies some header
+# fields, appends multiple identical header fields, overwrites the start line
+# using several methods, then dumps the initial list of variables and the final
+# one, then applies CRC32 to these values as signatures that are easy to test.
+# Then it does it again in the backend after saving the current headers into
+# the same names prefixed by "fe-". Then it does the same on the response path.
+# If some modifications are performed, the crc values need to be adjusted based
+# on the failed logs.
+#
+# Run it with HAPROXY_PROGRAM=$PWD/haproxy varnishtest -l -k -t 1 "$1"
+
+feature ignore_unknown_macro
+
+server s1 {
+	rxreq
+	txresp \
+	  -status 234 \
+	  -hdr "hdr1: val1" \
+	  -hdr "hdr2:  val2a" \
+	  -hdr "hdr2:    val2b" \
+	  -hdr "hdr3:      val3a, val3b" \
+	  -hdr "hdr4:" \
+	  -bodylen 14 \
+	  -body "This is a body"
+
+	expect req.method == "GET"
+	expect req.http.fe-sl1-crc == 992395575
+	expect req.http.fe-sl2-crc == 1270056220
+	expect req.http.fe-hdr-crc == 1719311923
+	expect req.http.be-sl1-crc == 2604236007
+	expect req.http.be-sl2-crc == 4181358964
+	expect req.http.be-hdr-crc == 3634102538
+} -start
+
+haproxy h1 -conf {
+    defaults
+	mode http
+	timeout connect 1s
+	timeout client  1s
+	timeout server  1s
+
+    frontend fe
+	bind "fd@${fe}"
+
+	#### requests
+	http-request set-var(req.method)     method
+	http-request set-var(req.uri)        url
+	http-request set-var(req.path)       path
+	http-request set-var(req.query)      query
+	http-request set-var(req.param)      url_param(qs_arg)
+
+	http-request set-header     sl1      "sl1: "
+
+	http-request set-method              "%[str(GET)]"
+	http-request set-uri                 concat(/bu/,req.uri,/eu)
+	http-request set-path                "/bp/%[var(req.path)]/ep"
+	http-request set-query               "bq&%[var(req.query)]&eq"
+
+	http-request set-header     sl2      "sl2: "
+
+	http-request set-header     sl1      "%[req.fhdr(sl1)] method=<%[var(req.method)]>; uri=<%[var(req.uri)]>; path=<%[var(req.path)]>;"
+	http-request set-header     sl1      "%[req.fhdr(sl1)] query=<%[var(req.query)]>; param=<%[var(req.param)]>"
+	http-request set-header     sl2      "%[req.fhdr(sl2)] method=<%[method]>; uri=<%[url]>; path=<%[path]>; "
+	http-request set-header     sl2      "%[req.fhdr(sl2)] query=<%[query]>; param=<%[url_param(qs_arg)]>"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr1=<%[req.hdr(hdr1)]>; fhdr1=<%[req.fhdr(hdr1)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr2=<%[req.hdr(hdr2)]>; fhdr2=<%[req.fhdr(hdr2)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr3=<%[req.hdr(hdr3)]>; fhdr3=<%[req.fhdr(hdr3)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr4=<%[req.hdr(hdr4)]>; fhdr4=<%[req.fhdr(hdr4)]>;"
+
+	http-request set-header     sl1-crc  "%[req.fhdr(sl1),crc32]"
+	http-request set-header     sl2-crc  "%[req.fhdr(sl2),crc32]"
+	http-request set-header     hdr-crc  "%[req.fhdr(hdr),crc32]"
+
+	#### responses
+	http-response set-header    be-sl1   "%[res.fhdr(sl1)]"
+	http-response set-header    be-sl2   "%[res.fhdr(sl2)]"
+	http-response set-header    be-hdr   "%[res.fhdr(hdr)]"
+
+	http-response set-header  be-sl1-crc "%[res.fhdr(sl1-crc)]"
+	http-response set-header  be-sl2-crc "%[res.fhdr(sl2-crc)]"
+	http-response set-header  be-hdr-crc "%[res.fhdr(hdr-crc)]"
+
+	http-response set-var(res.status)    status
+	http-response set-header    sl1      "sl1: "
+
+	http-response set-status    200
+
+	http-response set-header    sl2      "sl2: "
+
+	http-response set-header    sl1      "%[res.fhdr(sl1)] status=<%[var(res.status)]>;"
+	http-response set-header    sl2      "%[res.fhdr(sl2)] status=<%[status]>;"
+	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr1=<%[res.hdr(hdr1)]>; fhdr1=<%[res.fhdr(hdr1)]>;"
+	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr2=<%[res.hdr(hdr2)]>; fhdr2=<%[res.fhdr(hdr2)]>;"
+	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr3=<%[res.hdr(hdr3)]>; fhdr3=<%[res.fhdr(hdr3)]>;"
+	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr4=<%[res.hdr(hdr4)]>; fhdr4=<%[res.fhdr(hdr4)]>;"
+
+	http-response set-header  fe-sl1-crc "%[res.fhdr(sl1),crc32]"
+	http-response set-header  fe-sl2-crc "%[res.fhdr(sl2),crc32]"
+	http-response set-header  fe-hdr-crc "%[res.fhdr(hdr),crc32]"
+
+	default_backend be
+
+    backend be
+	#### requests
+	http-request set-header     fe-sl1   "%[req.fhdr(sl1)]"
+	http-request set-header     fe-sl2   "%[req.fhdr(sl2)]"
+	http-request set-header     fe-hdr   "%[req.fhdr(hdr)]"
+
+	http-request set-header   fe-sl1-crc "%[req.fhdr(sl1-crc)]"
+	http-request set-header   fe-sl2-crc "%[req.fhdr(sl2-crc)]"
+	http-request set-header   fe-hdr-crc "%[req.fhdr(hdr-crc)]"
+
+	http-request set-var(req.method)     method
+	http-request set-var(req.uri)        url
+	http-request set-var(req.path)       path
+	http-request set-var(req.query)      query
+	http-request set-var(req.param)      url_param(qs_arg)
+
+	http-request set-header     sl1      "sl1: "
+
+	http-request set-method              "%[str(GET)]"
+	http-request set-uri                 concat(/bu/,req.uri,/eu)
+	http-request set-path                "/bp/%[var(req.path)]/ep"
+	http-request set-query               "bq&%[var(req.query)]&eq"
+
+	http-request set-header     sl2      "sl2: "
+
+	http-request set-header     sl1      "%[req.fhdr(sl1)] method=<%[var(req.method)]>; uri=<%[var(req.uri)]>; path=<%[var(req.path)]>;"
+	http-request set-header     sl1      "%[req.fhdr(sl1)] query=<%[var(req.query)]>; param=<%[var(req.param)]>"
+	http-request set-header     sl2      "%[req.fhdr(sl2)] method=<%[method]>; uri=<%[url]>; path=<%[path]>; "
+	http-request set-header     sl2      "%[req.fhdr(sl2)] query=<%[query]>; param=<%[url_param(qs_arg)]>"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr1=<%[req.hdr(hdr1)]>; fhdr1=<%[req.fhdr(hdr1)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr2=<%[req.hdr(hdr2)]>; fhdr2=<%[req.fhdr(hdr2)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr3=<%[req.hdr(hdr3)]>; fhdr3=<%[req.fhdr(hdr3)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr4=<%[req.hdr(hdr4)]>; fhdr4=<%[req.fhdr(hdr4)]>;"
+
+	http-request set-header   be-sl1-crc "%[req.fhdr(sl1),crc32]"
+	http-request set-header   be-sl2-crc "%[req.fhdr(sl2),crc32]"
+	http-request set-header   be-hdr-crc "%[req.fhdr(hdr),crc32]"
+
+	#### responses
+	http-response set-var(res.status)    status
+	http-response set-header     sl1     "sl1: "
+
+	http-response set-status     200
+
+	http-response set-header     sl2     "sl2: "
+
+	http-response set-header     sl1     "%[res.fhdr(sl1)] status=<%[var(res.status)]>;"
+	http-response set-header     sl2     "%[res.fhdr(sl2)] status=<%[status]>;"
+	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr1=<%[res.hdr(hdr1)]>; fhdr1=<%[res.fhdr(hdr1)]>;"
+	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr2=<%[res.hdr(hdr2)]>; fhdr2=<%[res.fhdr(hdr2)]>;"
+	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr3=<%[res.hdr(hdr3)]>; fhdr3=<%[res.fhdr(hdr3)]>;"
+	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr4=<%[res.hdr(hdr4)]>; fhdr4=<%[res.fhdr(hdr4)]>;"
+
+	http-response set-header     sl1-crc "%[res.fhdr(sl1),crc32]"
+	http-response set-header     sl2-crc "%[res.fhdr(sl2),crc32]"
+	http-response set-header     hdr-crc "%[res.fhdr(hdr),crc32]"
+
+	server s1 ${s1_addr}:${s1_port}
+} -start
+
+client c1 -connect ${h1_fe_sock} {
+	txreq \
+	  -req GET \
+	  -url /path/to/file.extension?qs_arg=qs_value \
+	  -hdr "hdr1: val1" \
+	  -hdr "hdr2:  val2a" \
+	  -hdr "hdr2:    val2b" \
+	  -hdr "hdr3:      val3a, val3b" \
+	  -hdr "hdr4:"
+	rxresp
+
+	expect resp.status == 200
+	expect resp.http.be-sl1-crc == 487202719
+	expect resp.http.be-sl2-crc == 561949791
+	expect resp.http.be-hdr-crc == 1719311923
+	expect resp.http.fe-sl1-crc == 146151597
+	expect resp.http.fe-sl2-crc == 561949791
+	expect resp.http.fe-hdr-crc == 3634102538
+	expect resp.bodylen == 14
+	expect resp.body == "This is a body"
+} -run