From 4d23bbf00a52535c6329b4dfce554891faad0efd Mon Sep 17 00:00:00 2001
From: jugglinmike <mike@mikepennisi.com>
Date: Fri, 3 Dec 2021 19:51:57 -0500
Subject: [PATCH] Add tests for "Intl NumberFormat v3" proposal (#3307)

* Add tests for "Intl NumberFormat v3" proposal

This patch is intended to cover only one aspect of the proposal for
ECMA402: the "interpret strings as decimals" feature.

* fixup! Add tests for "Intl NumberFormat v3" proposal
---
 .../prototype/format/value-decimal-string.js  | 24 +++++++++++++++++++
 .../prototype/format/value-tonumber.js        |  4 +++-
 2 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 test/intl402/NumberFormat/prototype/format/value-decimal-string.js

diff --git a/test/intl402/NumberFormat/prototype/format/value-decimal-string.js b/test/intl402/NumberFormat/prototype/format/value-decimal-string.js
new file mode 100644
index 0000000000..600655a162
--- /dev/null
+++ b/test/intl402/NumberFormat/prototype/format/value-decimal-string.js
@@ -0,0 +1,24 @@
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-number-format-functions
+description: >
+  Intl.NumberFormat.prototype.format converts its argument (called value) to a
+  number using ToIntlMathematicalValue.
+features: [Intl.NumberFormat-v3]
+locale: [en-US]
+---*/
+
+var nf = new Intl.NumberFormat('en-US');
+
+// The value 100,000 should only be interpreted as infinity if the input is the
+// string "Infinity".
+assert.sameValue(nf.format('100000'), '100,000');
+// The value -100,000 should only be interpreted as negative infinity if the
+// input is the string "-Infinity".
+assert.sameValue(nf.format('-100000'), '-100,000');
+
+assert.sameValue(nf.format('1.0000000000000001'), '1.0000000000000001');
+assert.sameValue(nf.format('-1.0000000000000001'), '1.0000000000000001');
+assert.sameValue(nf.format('987654321987654321'), '987,654,321,987,654,321');
+assert.sameValue(nf.format('-987654321987654321'), '-987,654,321,987,654,321');
diff --git a/test/intl402/NumberFormat/prototype/format/value-tonumber.js b/test/intl402/NumberFormat/prototype/format/value-tonumber.js
index 710955a684..055784b7d6 100644
--- a/test/intl402/NumberFormat/prototype/format/value-tonumber.js
+++ b/test/intl402/NumberFormat/prototype/format/value-tonumber.js
@@ -19,7 +19,9 @@ const toNumberResults = [
   [true, 1],
   [false, 0],
   ['42', 42],
-  ['foo', NaN]
+  ['foo', NaN],
+  ['Infinity', Infinity],
+  ['-Infinity', -Infinity]
 ];
 
 const nf = new Intl.NumberFormat();