tests: add functional tests for buildpacks plugin

tests/unit/30_buildpacks.bats

@@ -0,0 +1,211 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  global_setup
+  deploy_app
+}
+
+teardown() {
+  destroy_app
+  global_teardown
+}
+
+@test "(buildpacks) buildpacks:help" {
+  run /bin/bash -c "dokku buildpacks"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "Manages buildpacks settings for an app"
+  help_output="$output"
+
+  run /bin/bash -c "dokku buildpacks:help"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "Manages buildpacks settings for an app"
+  assert_output "$help_output"
+}
+
+@test "(buildpacks) buildpacks:add" {
+  run /bin/bash -c "dokku buildpacks:add $TEST_APP heroku/nodejs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "heroku/nodejs"
+
+  run /bin/bash -c "dokku buildpacks:add $TEST_APP heroku/ruby"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "heroku/nodejs heroku/ruby"
+
+  run /bin/bash -c "dokku buildpacks:add --index 1 $TEST_APP heroku/golang"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "heroku/golang heroku/nodejs heroku/ruby"
+
+  run /bin/bash -c "dokku buildpacks:add --index 2 $TEST_APP heroku/python"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "heroku/golang heroku/python heroku/nodejs heroku/ruby"
+
+  run /bin/bash -c "dokku buildpacks:add --index 100 $TEST_APP heroku/php"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "heroku/golang heroku/python heroku/nodejs heroku/ruby heroku/php"
+}
+
+@test "(buildpacks) buildpacks:set" {
+  run /bin/bash -c "dokku buildpacks:set $TEST_APP heroku/nodejs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "heroku/nodejs"
+
+  run /bin/bash -c "dokku buildpacks:set $TEST_APP heroku/ruby"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "heroku/ruby"
+
+  run /bin/bash -c "dokku buildpacks:set --index 1 $TEST_APP heroku/golang"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "heroku/golang"
+
+  run /bin/bash -c "dokku buildpacks:set --index 2 $TEST_APP heroku/python"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "heroku/golang heroku/python"
+
+  run /bin/bash -c "dokku buildpacks:set --index 100 $TEST_APP heroku/php"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "heroku/golang heroku/python heroku/php"
+}
+
+@test "(buildpacks) buildpacks:remove" {
+  run /bin/bash -c "dokku buildpacks:set $TEST_APP heroku/nodejs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku buildpacks:set --index 2 $TEST_APP heroku/ruby"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "heroku/nodejs heroku/ruby"
+
+  run /bin/bash -c "dokku buildpacks:remove $TEST_APP heroku/nodejs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP | xargs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "heroku/ruby"
+
+  run /bin/bash -c "dokku buildpacks:remove $TEST_APP heroku/php"
+  echo "output: $output"
+  echo "status: $status"
+  assert_failure
+
+  run /bin/bash -c "dokku buildpacks:remove $TEST_APP heroku/ruby"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_not_exists
+}
+
+
+@test "(buildpacks) buildpacks:clear" {
+  run /bin/bash -c "dokku buildpacks:set $TEST_APP heroku/nodejs"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku buildpacks:set --index 2 $TEST_APP heroku/ruby"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku buildpacks:clear $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_not_exists
+
+  run /bin/bash -c "dokku buildpacks:clear $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku buildpacks:clear $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku --quiet buildpacks:list $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_not_exists
+}

tests/unit/test_helper.bash

@@ -82,6 +82,12 @@ assert_output_exists() {
   [[ -n "$output" ]] || flunk "expected output, found none"
 }
 
+# ShellCheck doesn't know about $output from Bats
+# shellcheck disable=SC2154
+assert_output_not_exists() {
+  [[ -z "$output" ]] || flunk "expected no output, found some"
+}
+
 # ShellCheck doesn't know about $output from Bats
 # shellcheck disable=SC2154
 assert_output_contains() {