first pass at dockerfile support

tests/unit/ps-dockerfile.bats

@@ -0,0 +1,70 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  deploy_app dockerfile
+}
+
+teardown() {
+  destroy_app
+}
+
+@test "ps (dockerfile)" {
+  # CI support: 'Ah. I just spoke with our Docker expert --
+  # looks like docker exec is built to work with docker-under-libcontainer,
+  # but we're using docker-under-lxc. I don't have an estimated time for the fix, sorry
+  skip "circleci does not support docker exec at the moment."
+  run bash -c "dokku ps $TEST_APP | grep -q \"node web.js\""
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+}
+
+@test "ps:start (dockerfile)" {
+  run bash -c "dokku ps:stop $TEST_APP"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+  run bash -c "dokku ps:start $TEST_APP"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+  run bash -c "docker ps -q --no-trunc | grep -q $(< $DOKKU_ROOT/$TEST_APP/CONTAINER)"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+}
+
+@test "ps:stop (dockerfile)" {
+  run bash -c "dokku ps:stop $TEST_APP"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+  run bash -c "docker ps -q --no-trunc | grep -q $(< $DOKKU_ROOT/$TEST_APP/CONTAINER)"
+  echo "output: "$output
+  echo "status: "$status
+  assert_failure
+}
+
+@test "ps:restart (dockerfile)" {
+  run bash -c "dokku ps:restart $TEST_APP"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+  run bash -c "docker ps -q --no-trunc | grep -q $(< $DOKKU_ROOT/$TEST_APP/CONTAINER)"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+}
+
+@test "ps:rebuild (dockerfile)" {
+  run bash -c "dokku ps:rebuild $TEST_APP"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+  run bash -c "docker ps -q --no-trunc | grep -q $(< $DOKKU_ROOT/$TEST_APP/CONTAINER)"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+}