1 files changed, 105 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/harmony/regexp-match-indices.js b/deps/v8/test/mjsunit/harmony/regexp-match-indices.js
new file mode 100644
index 0000000000..cc3710ce7e
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+++ b/deps/v8/test/mjsunit/harmony/regexp-match-indices.js
@@ -0,0 +1,105 @@
+// Copyright 2019 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Flags: --harmony-regexp-match-indices
+
+// Sanity test.
+{
+  const re = /a+(?<Z>z)?/;
+  const m = re.exec("xaaaz");
+
+  assertEquals(m.indices, [[1, 5], [4, 5]]);
+  assertEquals(m.indices.groups, {'Z': [4, 5]})
+}
+
+// Capture groups that are not matched return `undefined`.
+{
+  const re = /a+(?<Z>z)?/;
+  const m = re.exec("xaaay");
+
+  assertEquals(m.indices, [[1, 4], undefined]);
+  assertEquals(m.indices.groups, {'Z': undefined});
+}
+
+// Two capture groups.
+{
+  const re = /a+(?<A>zz)?(?<B>ii)?/;
+  const m = re.exec("xaaazzii");
+
+  assertEquals(m.indices, [[1, 8], [4, 6], [6, 8]]);
+  assertEquals(m.indices.groups, {'A': [4, 6], 'B': [6, 8]});
+}
+
+// No capture groups.
+{
+  const re = /a+/;
+  const m = re.exec("xaaazzii");
+
+  assertEquals(m.indices [[1, 4]]);
+  assertEquals(m.indices.groups, undefined);
+}
+
+// No match.
+{
+  const re = /a+/;
+  const m = re.exec("xzzii");
+
+  assertEquals(null, m);
+}
+
+// Unnamed capture groups.
+{
+  const re = /a+(z)?/;
+  const m = re.exec("xaaaz")
+
+  assertEquals(m.indices, [[1, 5], [4, 5]]);
+  assertEquals(m.indices.groups, undefined)
+}
+
+// Named and unnamed capture groups.
+{
+  const re = /a+(z)?(?<Y>y)?/;
+  const m = re.exec("xaaazyy")
+
+  assertEquals(m.indices, [[1, 6], [4, 5], [5, 6]]);
+  assertEquals(m.indices.groups, {'Y': [5, 6]})
+}
+
+
+// Verify property overwrite.
+{
+  const re = /a+(?<Z>z)?/;
+  const m = re.exec("xaaaz");
+
+  m.indices = null;
+  assertEquals(null, m.indices);
+}
+
+// Mess with array prototype, we should still do the right thing.
+{
+  Object.defineProperty(Array.prototype, "groups", {
+    get: () => {
+      assertUnreachable();
+      return null;
+    },
+    set: (x) => {
+      assertUnreachable();
+    }
+  });
+
+  Object.defineProperty(Array.prototype, "0", {
+    get: () => {
+      assertUnreachable();
+      return null;
+    },
+    set: (x) => {
+      assertUnreachable();
+    }
+  });
+
+  const re = /a+(?<Z>z)?/;
+  const m = re.exec("xaaaz");
+
+  assertEquals(m.indices.groups, {'Z': [4, 5]})
+}