From 9ecc654b77e360430671f2c054c8caa2be691f1b Mon Sep 17 00:00:00 2001
From: Philip Chimento <pchimento@igalia.com>
Date: Thu, 20 Oct 2022 15:57:25 -0700
Subject: [PATCH] Duplicate named capture groups: Syntax tests

Parse-time syntax for RegExp literals is already tested. These two files
test runtime RegExp compilation, with respect to duplicate named capture
groups.

See: #3704
---
 ...duplicate-named-capturing-groups-syntax.js | 20 +++++++++++++++++++
 ...duplicate-named-capturing-groups-syntax.js | 18 +++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 test/annexB/built-ins/RegExp/prototype/compile/duplicate-named-capturing-groups-syntax.js
 create mode 100644 test/built-ins/RegExp/duplicate-named-capturing-groups-syntax.js

diff --git a/test/annexB/built-ins/RegExp/prototype/compile/duplicate-named-capturing-groups-syntax.js b/test/annexB/built-ins/RegExp/prototype/compile/duplicate-named-capturing-groups-syntax.js
new file mode 100644
index 00000000000..c499bd2a153
--- /dev/null
+++ b/test/annexB/built-ins/RegExp/prototype/compile/duplicate-named-capturing-groups-syntax.js
@@ -0,0 +1,20 @@
+// Copyright 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-regexp.prototype.compile
+description: Runtime parsing of syntax for duplicate named capturing groups
+features: [regexp-duplicate-named-groups]
+---*/
+
+let r = /[ab]/;
+
+assert.throws(
+  SyntaxError,
+  () => r.compile("(?<x>a)(?<x>b)"),
+  "Duplicate named capturing groups in the same alternative do not parse"
+);
+
+let source = "(?<x>a)|(?<x>b)";
+r.compile(source);
+assert.sameValue(r.source, source, "Duplicate named capturing groups in separate alternatives parse correctly");
diff --git a/test/built-ins/RegExp/duplicate-named-capturing-groups-syntax.js b/test/built-ins/RegExp/duplicate-named-capturing-groups-syntax.js
new file mode 100644
index 00000000000..8d649462e2a
--- /dev/null
+++ b/test/built-ins/RegExp/duplicate-named-capturing-groups-syntax.js
@@ -0,0 +1,18 @@
+// Copyright 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-regexp-pattern-flags
+description: Runtime parsing of syntax for duplicate named capturing groups
+features: [regexp-duplicate-named-groups]
+---*/
+
+assert.throws(
+  SyntaxError,
+  () => new RegExp("(?<x>a)(?<x>b)"),
+  "Duplicate named capturing groups in the same alternative do not parse"
+);
+
+let source = "(?<x>a)|(?<x>b)";
+let parsed = new RegExp(source);
+assert.sameValue(parsed.source, source, "Duplicate named capturing groups in separate alternatives parse correctly");