improve docker test setup (#129)

motivation: test task to include h2spec

changes:
* remove older docker-compose files that are not in use on the master branch
* move the task definition from the 18.04/5.0 docker compose file to the generic one
* create a unit-test task to encapsulate the unit tests and change the test task to include unit tests, integration tests and h2 spec verification

Author: tomerd

docker/docker-compose.1404.41.yaml

@@ -10,21 +10,22 @@ services:
         swift_version: "5.0"
         h2spec_version: "2.2.1"
 
+  unit-tests:
+    image: swift-nio-http2:18.04-5.0
+
   integration-tests:
     image: swift-nio-http2:18.04-5.0
     environment:
       - MAX_ALLOCS_ALLOWED_create_client_stream_channel=70010
       - MAX_ALLOCS_ALLOWED_hpack_decoding=5050
       - MAX_ALLOCS_ALLOWED_client_server_request_response=360000
 
+  h2spec:
+    image: swift-nio-http2:18.04-5.0
+
   test:
     image: swift-nio-http2:18.04-5.0
-    command: /bin/bash -cl "swift test -Xswiftc -warnings-as-errors && ./scripts/integration_tests.sh"
     environment:
       - MAX_ALLOCS_ALLOWED_create_client_stream_channel=70010
       - MAX_ALLOCS_ALLOWED_hpack_decoding=5050
       - MAX_ALLOCS_ALLOWED_client_server_request_response=360000
-
-  h2spec:
-    image: swift-nio-http2:18.04-5.0
-

docker/docker-compose.1604.41.yaml

@@ -23,11 +23,18 @@ services:
     <<: *common
     command: /bin/bash -cl "./scripts/sanity.sh"
 
-  test:
+  unit-tests:
+    <<: *common
+    command: /bin/bash -cl "swift test -Xswiftc -warnings-as-errors"
+
+  integration-tests:
     <<: *common
-    command: /bin/bash -cl "swift test"
+    command: /bin/bash -cl "./scripts/integration_tests.sh"
 
   h2spec:
     <<: *common
     command: /bin/bash -cl "./scripts/test_h2spec.sh"
 
+  test:
+    <<: *common
+    command: /bin/bash -cl "swift test -Xswiftc -warnings-as-errors && ./scripts/integration_tests.sh && ./scripts/test_h2spec.sh"