Add test veryfing multiple filenames are used by default

tests/modules/cloud_function/fixture/main.tf

@@ -15,15 +15,15 @@
  */
 
 module "test" {
+  count       = var.instance_count
   source      = "../../../../modules/cloud-function"
   project_id  = "my-project"
-  name        = "test"
+  name        = "test_${count.index}"
   bucket_name = var.bucket_name
   v2          = var.v2
   bundle_config = {
-    source_dir  = "bundle"
-    output_path = "bundle.zip"
-    excludes    = null
+    source_dir = "bundle"
+    excludes   = null
   }
   iam = {
     "roles/cloudfunctions.invoker" = ["allUsers"]

tests/modules/cloud_function/fixture/variables.tf

@@ -19,6 +19,11 @@ variable "bucket_name" {
   default = "test"
 }
 
+variable "instance_count" {
+  type    = number
+  default = 1
+}
+
 variable "v2" {
   type    = any
   default = false

tests/modules/cloud_function/test_plan.py

@@ -22,6 +22,12 @@ def resources(plan_runner, version):
   _, resources = plan_runner(v2=v2)
   return resources
 
+@pytest.fixture
+def plan(plan_runner, version, count):
+  v2 = {'v1': 'false', 'v2': 'true'}[version]
+  plan, _ = plan_runner(v2=v2, instance_count=count)
+  return plan
+
 
 @pytest.mark.parametrize('version', ['v1', 'v2'])
 def test_resource_count(resources):
@@ -42,3 +48,19 @@ def test_iam(resources, version):
   assert len(bindings) == 1
   assert bindings[0]['role'] == 'roles/cloudfunctions.invoker'
   assert bindings[0]['members'] == ['allUsers']
+
+
+@pytest.mark.parametrize('version', ['v1', 'v2'])
+@pytest.mark.parametrize('count', [2])
+def test_multiple_functions(plan, version, count):
+  """Tests whether multiple use of functions result in use of multiple bundle files"""
+
+  # data objects are only accessible in prior_state of the plan, they are not present in root_module
+  archives = [
+    resource for child_module in plan['prior_state']["values"]["root_module"]["child_modules"]
+    for resource in child_module["resources"]
+    if resource["type"] == "archive_file"
+  ]
+  file_names = set([x["values"]["output_path"] for x in archives])
+
+  assert len(archives) == len(file_names)