tests: add test for builder-pack:set projectoml-path

tests/unit/builder-pack.bats

@@ -0,0 +1,81 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup_file() {
+  if ! command -v "pack" &>/dev/null; then
+    add-apt-repository --yes ppa:cncf-buildpacks/pack-cli
+    apt-get update
+    apt-get --yes install pack-cli
+  fi
+}
+
+setup() {
+  create_app
+}
+
+teardown() {
+  destroy_app
+}
+
+@test "(builder-pack:set)" {
+  run /bin/bash -c "dokku builder:set $TEST_APP selected pack"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku buildpacks:set-property $TEST_APP stack heroku/buildpacks:20"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@dokku.me:$TEST_APP inject_requirements_txt
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains 'Building with buildpack 1' 0
+  assert_output_contains 'Installing requirements with pip'
+
+  run /bin/bash -c "dokku builder-pack:set $TEST_APP projecttoml-path nonexistent.toml"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku ps:rebuild $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains 'Building with buildpack 1' 0
+  assert_output_contains 'Installing requirements with pip'
+
+  run /bin/bash -c "dokku builder-pack:set $TEST_APP projecttoml-path project2.toml"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku ps:rebuild $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains 'Building with buildpack 1'
+  assert_output_contains 'Installing requirements with pip' 0
+
+  run /bin/bash -c "dokku builder-pack:set $TEST_APP projecttoml-path"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku ps:rebuild $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains 'Building with buildpack 1' 0
+  assert_output_contains 'Installing requirements with pip'
+}
+
+inject_requirements_txt() {
+  local APP="$1"
+  local APP_REPO_DIR="$2"
+  [[ -z "$APP" ]] && local APP="$TEST_APP"
+  echo "flask" >>"$APP_REPO_DIR/requirements.txt"
+}