Extract SRS DOMAINNAME tests/container into own file

Makefile

@@ -71,27 +71,6 @@ run:
 		-h unknown.domain.tld \
 		-t $(NAME)
 	-@ sleep $(SLEEP)
-	docker run --rm -d --name mail_domainname \
-		-v "`pwd`/test/config":/tmp/docker-mailserver \
-		-v "`pwd`/test/test-files":/tmp/docker-mailserver-test:ro \
-		-e PERMIT_DOCKER=network \
-		-e DMS_DEBUG=0 \
-		-e ENABLE_SRS=1 \
-		-e DOMAINNAME=my-domain.com \
-		-h unknown.domain.tld \
-		-t $(NAME)
-	-@ sleep $(SLEEP)
-	docker run --rm -d --name mail_srs_domainname \
-		-v "`pwd`/test/config":/tmp/docker-mailserver \
-		-v "`pwd`/test/test-files":/tmp/docker-mailserver-test:ro \
-		-e PERMIT_DOCKER=network \
-		-e DMS_DEBUG=0 \
-		-e ENABLE_SRS=1 \
-		-e SRS_DOMAINNAME=srs.my-domain.com \
-		-e DOMAINNAME=my-domain.com \
-		-h unknown.domain.tld \
-		-t $(NAME)
-	-@ sleep $(SLEEP)
 
 generate-accounts-after-run:
 	@ docker run --rm -e MAIL_USER=added@localhost.localdomain -e MAIL_PASS=mypassword -t $(NAME) /bin/sh -c 'echo "$$MAIL_USER|$$(doveadm pw -s SHA512-CRYPT -u $$MAIL_USER -p $$MAIL_PASS)"' >> test/config/postfix-accounts.cf

test/mail_srs_domainname.bats

@@ -0,0 +1,34 @@
+load 'test_helper/common'
+
+@test "checking SRS: SRS_DOMAINNAME is used correctly" {
+    docker run --rm -d --name mail_srs_domainname \
+		-v "`pwd`/test/config":/tmp/docker-mailserver \
+		-v "`pwd`/test/test-files":/tmp/docker-mailserver-test:ro \
+		-e PERMIT_DOCKER=network \
+		-e DMS_DEBUG=0 \
+		-e ENABLE_SRS=1 \
+		-e SRS_DOMAINNAME=srs.my-domain.com \
+		-e DOMAINNAME=my-domain.com \
+		-h unknown.domain.tld \
+		-t ${NAME}
+
+    teardown() { docker rm -f mail_srs_domainname; }
+
+    repeat_until_success_or_timeout 15 docker exec mail_srs_domainname grep "SRS_DOMAIN=srs.my-domain.com" /etc/default/postsrsd
+}
+
+@test "checking SRS: DOMAINNAME is handled correctly" {
+    docker run --rm -d --name mail_domainname \
+		-v "`pwd`/test/config":/tmp/docker-mailserver \
+		-v "`pwd`/test/test-files":/tmp/docker-mailserver-test:ro \
+		-e PERMIT_DOCKER=network \
+		-e DMS_DEBUG=0 \
+		-e ENABLE_SRS=1 \
+		-e DOMAINNAME=my-domain.com \
+		-h unknown.domain.tld \
+		-t ${NAME}
+
+    teardown() { docker rm -f mail_domainname; }
+
+    repeat_until_success_or_timeout 15 docker exec mail_domainname grep "SRS_DOMAIN=my-domain.com" /etc/default/postsrsd
+}

test/tests.bats

@@ -667,20 +667,12 @@ EOF
   assert_success
 }
 
-@test "checking SRS: SRS_DOMAINNAME is used correctly" {
-  run docker exec mail_srs_domainname grep "SRS_DOMAIN=srs.my-domain.com" /etc/default/postsrsd
-  assert_success
-}
-
 @test "checking SRS: OVERRIDE_HOSTNAME is handled correctly" {
   run docker exec mail_override_hostname grep "SRS_DOMAIN=my-domain.com" /etc/default/postsrsd
   assert_success
 }
 
-@test "checking SRS: DOMAINNAME is handled correctly" {
-  run docker exec mail_domainname grep "SRS_DOMAIN=my-domain.com" /etc/default/postsrsd
-  assert_success
-}
+
 @test "checking SRS: fallback to hostname is handled correctly" {
   run docker exec mail grep "SRS_DOMAIN=my-domain.com" /etc/default/postsrsd
   assert_success