WIP: Empty value -> Default transformations (Integration tests failing)

Author: cortlyons

integration/v4_to_v5/testdata/zero_trust_access_application/expected/zero_trust_access_application_e2e.tf

@@ -0,0 +1,43 @@
+variable "cloudflare_account_id" {
+  description = "Cloudflare account ID"
+  type        = string
+}
+
+variable "cloudflare_zone_id" {
+  description = "Cloudflare zone ID"
+  type        = string
+}
+
+variable "cloudflare_domain" {
+  description = "Cloudflare Domain"
+  type        = string
+}
+
+# Minimal E2E test - basic self-hosted app
+resource "cloudflare_zero_trust_access_application" "e2e_minimal" {
+  account_id = var.cloudflare_account_id
+  name       = "E2E Minimal App"
+  domain     = var.cloudflare_domain
+  type       = "self_hosted"
+}
+
+# E2E test - SAML SAAS app (no domain required)
+resource "cloudflare_zero_trust_access_application" "e2e_saas_saml" {
+  account_id = var.cloudflare_account_id
+  name       = "E2E SAML SAAS"
+  type       = "saas"
+
+  saas_app = {
+    consumer_service_url = "https://${var.cloudflare_domain}/sso/saml"
+    sp_entity_id         = "e2e-saml-app"
+    name_id_format       = "email"
+    custom_attributes = [
+      {
+        name = "email"
+        source = {
+          name = "user_email"
+        }
+      }
+    ]
+  }
+}

integration/v4_to_v5/testdata/zero_trust_access_application/input/zero_trust_access_application_e2e.tf

@@ -0,0 +1,42 @@
+variable "cloudflare_account_id" {
+  description = "Cloudflare account ID"
+  type        = string
+}
+
+variable "cloudflare_zone_id" {
+  description = "Cloudflare zone ID"
+  type        = string
+}
+
+variable "cloudflare_domain" {
+  description = "Cloudflare Domain"
+  type        = string
+}
+
+# Minimal E2E test - basic self-hosted app
+resource "cloudflare_zero_trust_access_application" "e2e_minimal" {
+  account_id = var.cloudflare_account_id
+  name       = "E2E Minimal App"
+  domain     = var.cloudflare_domain
+  type       = "self_hosted"
+}
+
+# E2E test - SAML SAAS app (no domain required)
+resource "cloudflare_zero_trust_access_application" "e2e_saas_saml" {
+  account_id = var.cloudflare_account_id
+  name       = "E2E SAML SAAS"
+  type       = "saas"
+
+  saas_app {
+    consumer_service_url = "https://${var.cloudflare_domain}/sso/saml"
+    sp_entity_id         = "e2e-saml-app"
+    name_id_format       = "email"
+
+    custom_attribute {
+      name = "email"
+      source {
+        name = "user_email"
+      }
+    }
+  }
+}