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test/parallel/test-snapshot-stack-trace-limit.js

@@ -0,0 +1,46 @@
+'use strict';
+
+// This tests Error.stackTraceLimit is fixed up for snapshot-building contexts,
+// and can be restored after deserialization.
+
+require('../common');
+const assert = require('assert');
+const tmpdir = require('../common/tmpdir');
+const fixtures = require('../common/fixtures');
+const { spawnSyncAndAssert } = require('../common/child_process');
+
+tmpdir.refresh();
+const blobPath = tmpdir.resolve('snapshot.blob');
+{
+  spawnSyncAndAssert(process.execPath, [
+    '--stack-trace-limit=50',
+    '--snapshot-blob',
+    blobPath,
+    '--build-snapshot',
+    fixtures.path('snapshot', 'error-stack.js'),
+  ], {
+    cwd: tmpdir.path
+  }, {
+    stdout(output) {
+      assert.match(output, /During snapshot building, Error\.stackTraceLimit = 50/);
+      const matches = [...output.matchAll(/at recurse/g)];
+      assert.strictEqual(matches.length, 30);
+    }
+  });
+}
+
+{
+  spawnSyncAndAssert(process.execPath, [
+    '--stack-trace-limit=20',
+    '--snapshot-blob',
+    blobPath,
+  ], {
+    cwd: tmpdir.path
+  }, {
+    stdout(output) {
+      assert.match(output, /After snapshot deserialization, Error\.stackTraceLimit = 20/);
+      const matches = [...output.matchAll(/at recurse/g)];
+      assert.strictEqual(matches.length, 20);
+    }
+  });
+}