Add unit test for packer build

.github/workflows/unit-test.yml

@@ -0,0 +1,19 @@
+name: "Unit Tests"
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
+    - run: |
+        python -m pip install --upgrade pip
+        python -m pip install tox tox-gh-actions
+    - run: tox
+

.gitignore

@@ -21,6 +21,7 @@ var/
 *.egg-info/
 .installed.cfg
 *.egg
+*.eggs/
 
 # Installer logs
 pip-log.txt

tests/docker.pkr.hcl

@@ -0,0 +1,21 @@
+packer {
+  required_plugins {
+    docker = {
+      version = ">= 0.0.7"
+      source = "github.com/hashicorp/docker"
+    }
+  }
+}
+
+source "docker" "ubuntu" {
+  image  = "ubuntu:xenial"
+  commit = true
+}
+
+build {
+  name    = "python-packer"
+  sources = [
+    "source.docker.ubuntu"
+  ]
+}
+

tests/test_packer.py

@@ -3,28 +3,50 @@
 from packer import Installer
 
 class TestPacker(unittest.TestCase):
+    test_template = './tests/docker.pkr.hcl'
+    packer = Packer(template=test_template)
+
+    @classmethod
+    def setUpClass(self):
+        self.packer.init('tests')
+
+    @unittest.skip("Already used for setup")
     def test_init(self):
-      self.assertEqual("TODO", "FIXME")
+      self.packer.init('tests')
+      pass
+
     def test_build(self):
-      self.assertEqual("TODO", "FIXME")
+      build_output = self.packer.build(parallel=False, debug=True, force=False)
+      build_success = build_output.find("artifacts of successful builds")
+      self.assertGreater(build_success, 0)
+
     def test_fix(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_inspect(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_push(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_validate(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_version(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_add_opt(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_validate_argtype(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_append_base_arguments(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_join_comma(self):
       self.assertEqual("TODO", "FIXME")
+
     def test_parse_inspection_output(self):
       self.assertEqual("TODO", "FIXME")
 

tox.ini

@@ -11,6 +11,8 @@ deps =
      -rdev-requirements.txt
 commands =
     pytest
+setenv =
+    HOME = /tmp
 
 [testenv:flake8]
 deps =