test: google compute engine acceptance tests

.gitignore

@@ -6,3 +6,4 @@
 /website/build
 .vagrant
 Vagrantfile
+test/.env

test/README.md

@@ -21,7 +21,11 @@ running on Mac OS X, most of these are available with `brew`:
 
 * [Bats](https://github.com/sstephenson/bats)
 
-* [AWS cli](http://aws.amazon.com/cli/)
+* [AWS cli](http://aws.amazon.com/cli/) for AWS tests as well as most
+  of the components.
+
+* [gcutil](https://developers.google.com/compute/docs/gcutil/#install) for
+  Google Compute Engine tests.
 
 ### Configuring Tests
 
@@ -32,6 +36,15 @@ Set the following self-explanatory environmental variables:
 * `AWS_ACCESS_KEY_ID`
 * `AWS_SECRET_ACCESS_KEY`
 
+**For tests that test Google Compute Engine:**
+
+Set the following environmental variables:
+
+* `GC_BUCKET_NAME`
+* `GC_CLIENT_SECRETS_FILE`
+* `GC_PRIVATE_KEY_FILE`
+* `GC_PROJECT_ID`
+
 ### Running
 
 These tests are meant to be run _one file at a time_. There are some

test/builder_googlecompute.bats

+#!/usr/bin/env bats
+#
+# This tests the googlecompute builder. The teardown function will
+# delete any images with the text "packerbats" within the name.
+
+load test_helper
+fixtures builder-googlecompute
+
+# Required parameters
+: ${GC_BUCKET_NAME:?}
+: ${GC_CLIENT_SECRETS_FILE:?}
+: ${GC_PRIVATE_KEY_FILE:?}
+: ${GC_PROJECT_ID:?}
+command -v gcutil >/dev/null 2>&1 || {
+    echo "'gcutil' must be installed" >&2
+    exit 1
+}
+
+USER_VARS="-var bucket_name=${GC_BUCKET_NAME}"
+USER_VARS="${USER_VARS} -var client_secrets_file=${GC_CLIENT_SECRETS_FILE}"
+USER_VARS="${USER_VARS} -var private_key_file=${GC_PRIVATE_KEY_FILE}"
+USER_VARS="${USER_VARS} -var project_id=${GC_PROJECT_ID}"
+
+# This tests if GCE has an image that contains the given parameter.
+gc_has_image() {
+    gcutil --format=names --project=${GC_PROJECT_ID} listimages \
+        | grep $1
+}
+
+teardown() {
+    gcutil --format=names --project=${GC_PROJECT_ID} listimages \
+        | grep packerbats \
+        | xargs -n1 gcutil --project=${GC_PROJECT_ID} --force deleteimage
+}
+
+@test "googlecompute: build minimal.json" {
+    run packer build ${USER_VARS} $FIXTURE_ROOT/minimal.json
+    [ "$status" -eq 0 ]
+    [ "$(gc_has_image "packerbats-minimal")" -eq 0 ]
+}

test/fixtures/builder-googlecompute/minimal.json

+{
+    "variables": {
+        "bucket_name": null,
+        "client_secrets_file": null,
+        "private_key_file": null,
+        "project_id": null
+    },
+
+    "builders": [{
+        "type": "googlecompute",
+        "bucket_name": "{{user `bucket_name`}}",
+        "client_secrets_file": "{{user `client_secrets_file`}}",
+        "private_key_file": "{{user `private_key_file`}}",
+        "project_id": "{{user `project_id`}}",
+
+        "image_name": "packerbats-minimal-{{timestamp}}",
+        "source_image": "debian-7-wheezy-v20131120",
+        "zone": "us-central1-a"
+    }]
+}