Add acceptance test for $${...} escape in bundle variable references

Test that $${source_file} in a job parameter is treated as an escaped literal and reaches the API as ${source_file} (not resolved as a bundle variable reference). Co-authored-by: Isaac
denik · Sep 2, 2026 · Sep 2, 2026 · Sep 2, 2026 · Sep 2, 2026 · Sep 2, 2026
commit b92af44668feef8059a050a5f9ecea0b1f9bae34
diff --git a/acceptance/bundle/variables/escape/databricks.yml b/acceptance/bundle/variables/escape/databricks.yml
@@ -0,0 +1,23 @@
+bundle:
+  name: test-bundle
+
+variables:
+  catalog:
+    default: main
+
+resources:
+  jobs:
+    ingest:
+      name: ingest-job
+      tasks:
+        - task_key: run_notebook
+          notebook_task:
+            notebook_path: /notebooks/ingest
+            base_parameters:
+              # $${...} is the escape for a literal ${...} that the Databricks
+              # runtime should interpret, not the bundle variable system.
+              # Mixed: ${var.catalog} is a real bundle variable; $${source_file}
+              # is a literal that should reach the API as "${source_file}".
+              catalog: ${var.catalog}
+              source_file: $${source_file}
+              date_range: $${business_date[0..9]}
diff --git a/acceptance/bundle/variables/escape/out.test.toml b/acceptance/bundle/variables/escape/out.test.toml
diff --git a/acceptance/bundle/variables/escape/output.txt b/acceptance/bundle/variables/escape/output.txt
@@ -0,0 +1,7 @@
+
+>>> [CLI] bundle validate -o json
+{
+  "catalog": "main",
+  "date_range": "${business_date[0..9]}",
+  "source_file": "${source_file}"
+}
diff --git a/acceptance/bundle/variables/escape/script b/acceptance/bundle/variables/escape/script
@@ -0,0 +1 @@
+trace $CLI bundle validate -o json | jq '.resources.jobs.ingest.tasks[0].notebook_task.base_parameters'
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		trace $CLI bundle validate -o json \| jq '.resources.jobs.ingest.tasks[0].notebook_task.base_parameters'