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

tests/apps/python/cnb/1/bin/build

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+layers_dir=$1
+
+echo "Building with buildpack 1"
+bp_layer=$layers_dir/1
+bp_env_dir=$bp_layer/env
+mkdir -p $bp_env_dir
+
+echo "TESTENV_1" > $bp_env_dir/TESTENV
+
+echo "[types]" > ${bp_layer}.toml
+echo "launch = true" >> ${bp_layer}.toml
+echo "build = true" >> ${bp_layer}.toml
+echo "cache = true" >> ${bp_layer}.toml

tests/apps/python/cnb/1/bin/detect

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+echo "1" && exit 0

tests/apps/python/cnb/1/buildpack.toml

@@ -0,0 +1,9 @@
+api = "0.6"
+
+[buildpack]
+id = "1"
+version = "0.1.0"
+name = "1 Packages Buildpack"
+
+[[stacks]]
+id = "heroku-20"

tests/apps/python/cnb/2/bin/build

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+layers_dir=$1
+
+echo "Building with buildpack 2"
+bp_layer=$layers_dir/2
+bp_env_dir=$bp_layer/env
+mkdir -p $bp_env_dir
+
+export TESTENV="$TESTENV:anotherenv"
+
+echo "===> env start"
+env
+echo "===> env end"
+
+echo "TESTENV_2" > $bp_env_dir/TESTENV
+
+echo "[types]" > ${bp_layer}.toml
+echo "launch = true" >> ${bp_layer}.toml
+echo "build = true" >> ${bp_layer}.toml
+echo "cache = true" >> ${bp_layer}.toml

tests/apps/python/cnb/2/bin/detect

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+echo "2" && exit 0

tests/apps/python/cnb/2/buildpack.toml

@@ -0,0 +1,9 @@
+api = "0.6"
+
+[buildpack]
+id = "2"
+version = "0.1.0"
+name = "2 Packages Buildpack"
+
+[[stacks]]
+id = "heroku-20"

tests/apps/python/project2.toml

@@ -0,0 +1,10 @@
+[project]
+id = "python"
+name = "python"
+version = "1.0.0"
+
+[[build.buildpacks]]
+uri = "./cnb/1"
+
+[[build.buildpacks]]
+uri = "./cnb/1"

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"
+}