Add continue_prev invariant test against latest released CLI

acceptance/acceptance_test.go

@@ -333,6 +333,12 @@ func testAccept(t *testing.T, inprocessMode bool, singleTest string) int {
 		cli293Path := DownloadCLI(t, buildDir, "0.293.0")
 		t.Setenv("CLI_293", cli293Path)
 		repls.SetPath(cli293Path, "[CLI_293]")
+
+		prevVersion := resolveLatestVersion(t, buildDir)
+		cliPrevPath := DownloadCLI(t, buildDir, prevVersion)
+		t.Setenv("CLI_PREV", cliPrevPath)
+		repls.SetPath(cliPrevPath, "[CLI_PREV]")
+		repls.Set(prevVersion, "[CLI_PREV_VERSION]")
 	}
 
 	paths := []string{

acceptance/bundle/invariant/continue_prev/output.txt

@@ -0,0 +1,4 @@
+
+>>> [CLI_PREV] --version
+Databricks CLI v[CLI_PREV_VERSION]
+INPUT_CONFIG_OK

acceptance/bundle/invariant/continue_prev/script

@@ -0,0 +1,41 @@
+# Invariant to test: current CLI can deploy on top of state produced by the previous release
+
+cp -r "$TESTDIR/../data/." . &> LOG.cp
+
+INIT_SCRIPT="$TESTDIR/../configs/$INPUT_CONFIG-init.sh"
+if [ -f "$INIT_SCRIPT" ]; then
+    source "$INIT_SCRIPT" &> LOG.init
+fi
+
+envsubst < "$TESTDIR/../configs/$INPUT_CONFIG" > databricks.yml
+
+cleanup() {
+    $CLI bundle destroy --auto-approve &> LOG.destroy
+    cat LOG.destroy | contains.py '!panic' '!internal error' > /dev/null
+
+    CLEANUP_SCRIPT="$TESTDIR/../configs/$INPUT_CONFIG-cleanup.sh"
+    if [ -f "$CLEANUP_SCRIPT" ]; then
+        source "$CLEANUP_SCRIPT" &> LOG.cleanup
+    fi
+}
+
+trap cleanup EXIT
+
+# Deploy with previous released CLI to produce previous-version state
+trace $CLI_PREV --version
+$CLI_PREV bundle deploy &> LOG.deploy.prev
+cat LOG.deploy.prev | contains.py '!panic' '!internal error' > /dev/null
+
+echo INPUT_CONFIG_OK
+
+# Deploy with current CLI on top of previous state
+$CLI bundle deploy &> LOG.deploy
+cat LOG.deploy | contains.py '!panic' '!internal error' > /dev/null
+
+# Verify no drift after current CLI deploy
+$CLI bundle plan -o json > LOG.planjson 2>LOG.planjson.err
+cat LOG.planjson.err | contains.py '!panic' '!internal error' > /dev/null
+verify_no_drift.py LOG.planjson
+
+$CLI bundle plan 2>LOG.plan.err | contains.py '!panic' '!internal error' 'Plan: 0 to add, 0 to change, 0 to delete' > LOG.plan
+cat LOG.plan.err | contains.py '!panic' '!internal error' > /dev/null

acceptance/bundle/invariant/continue_prev/test.toml

@@ -0,0 +1,13 @@
+# Computed volume_path was added after the previous release (#5550), so the
+# seed deploy with the previous CLI cannot resolve ${resources.volumes.*.volume_path}.
+# Covered by no_drift on direct.
+EnvMatrixExclude.no_volume_path_job_ref = ["INPUT_CONFIG=volume_path_job_ref.yml.tmpl"]
+
+# postgres_project.yml.tmpl sets enable_pg_native_login: false, which triggers a
+# state serialization bug on the previous CLI (fixed by #5782).
+# Broken on CLI_PREV=1.6.0; remove after the next release.
+EnvMatrixExclude.no_postgres_project = ["INPUT_CONFIG=postgres_project.yml.tmpl"]
+
+# The 1000-task scale case is covered by no_drift. Running it here adds ~1.5 min
+# per variant (two full deploys at 1000 tasks) without incremental coverage.
+EnvMatrixExclude.no_pydabs_1000_tasks = ["INPUT_CONFIG=job_pydabs_1000_tasks.yml.tmpl"]