fix: Match all whitespace and non-whitespace for Pub/Sub subscription filter validation (GoogleCloudPlatform#11676)

Author: michaelpri10

mmv1/products/pubsub/Subscription.yaml

@@ -42,6 +42,12 @@ examples:
     vars:
       topic_name: 'example-topic'
       subscription_name: 'example-subscription'
+  - !ruby/object:Provider::Terraform::Examples
+    name: 'pubsub_subscription_pull_filter'
+    primary_resource_id: 'example'
+    vars:
+      topic_name: 'example-topic'
+      subscription_name: 'example-subscription'
   - !ruby/object:Provider::Terraform::Examples
     name: 'pubsub_subscription_dead_letter'
     primary_resource_id: 'example'
@@ -396,7 +402,7 @@ properties:
     name: 'filter'
     required: false
     validation: !ruby/object:Provider::Terraform::Validation
-      regex: '^.{0,256}$'
+      regex: '^[\s\S]{0,256}$'
     description: |
       The subscription only delivers the messages that match the filter.
       Pub/Sub automatically acknowledges the messages that don't match the filter. You can filter messages

mmv1/products/pubsub/go_Subscription.yaml

@@ -56,6 +56,11 @@ examples:
     vars:
       topic_name: 'example-topic'
       subscription_name: 'example-subscription'
+  - name: 'pubsub_subscription_pull_filter'
+    primary_resource_id: 'example'
+    vars:
+      topic_name: 'example-topic'
+      subscription_name: 'example-subscription'
   - name: 'pubsub_subscription_dead_letter'
     primary_resource_id: 'example'
     vars:
@@ -402,7 +407,7 @@ properties:
     required: false
     immutable: true
     validation:
-      regex: '^.{0,256}$'
+      regex: '^[\s\S]{0,256}$'
   - name: 'deadLetterPolicy'
     type: NestedObject
     description: |

mmv1/templates/terraform/examples/go/pubsub_subscription_pull_filter.tf.tmpl

@@ -0,0 +1,19 @@
+resource "google_pubsub_topic" "{{$.PrimaryResourceId}}" {
+  name = "{{index $.Vars "topic_name"}}"
+}
+
+resource "google_pubsub_subscription" "{{$.PrimaryResourceId}}" {
+  name  = "{{index $.Vars "subscription_name"}}"
+  topic = google_pubsub_topic.{{$.PrimaryResourceId}}.id
+
+  labels = {
+    foo = "bar"
+  }
+
+  filter = <<EOF
+    attributes.foo = "foo"
+    AND attributes.bar = "bar"
+  EOF
+
+  ack_deadline_seconds = 20
+}

mmv1/templates/terraform/examples/pubsub_subscription_pull_filter.tf.erb

@@ -0,0 +1,19 @@
+resource "google_pubsub_topic" "<%= ctx[:primary_resource_id] %>" {
+  name = "<%= ctx[:vars]['topic_name'] %>"
+}
+
+resource "google_pubsub_subscription" "<%= ctx[:primary_resource_id] %>" {
+  name  = "<%= ctx[:vars]['subscription_name'] %>"
+  topic = google_pubsub_topic.<%= ctx[:primary_resource_id] %>.id
+
+  labels = {
+    foo = "bar"
+  }
+
+  filter = <<EOF
+    attributes.foo = "foo"
+    AND attributes.bar = "bar"
+  EOF
+
+  ack_deadline_seconds = 20
+}