1 files changed, 174 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/NumberFormat/formatRangeToParts.js b/js/src/tests/non262/Intl/NumberFormat/formatRangeToParts.js
new file mode 100644
index 0000000000..264dab910c
--- /dev/null
+++ b/js/src/tests/non262/Intl/NumberFormat/formatRangeToParts.js
@@ -0,0 +1,174 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl")||release_or_beta)
+
+const Start = NumberRangeFormatParts("startRange");
+const End = NumberRangeFormatParts("endRange");
+const Shared = NumberRangeFormatParts("shared");
+
+const tests = {
+  "en": {
+    options: {},
+    ranges: [
+      // Approximation sign present.
+      {
+        start: 0,
+        end: 0,
+        result: [Shared.Approx("~"), Shared.Integer("0")],
+      },
+      {
+        start: -0,
+        end: -0,
+        result: [Shared.Approx("~"), Shared.MinusSign("-"), Shared.Integer("0")],
+      },
+      {
+        start: -1,
+        end: -1,
+        result: [Shared.Approx("~"), Shared.MinusSign("-"), Shared.Integer("1")],
+      },
+      {
+        start: 0.5,
+        end: 0.5,
+        result: [Shared.Approx("~"), Shared.Integer("0"), Shared.Decimal("."), Shared.Fraction("5")],
+      },
+      {
+        start: Infinity,
+        end: Infinity,
+        result: [Shared.Approx("~"), Shared.Inf("∞")],
+      },
+      {
+        start: -Infinity,
+        end: -Infinity,
+        result: [Shared.Approx("~"), Shared.MinusSign("-"), Shared.Inf("∞")],
+      },
+
+      // Proper ranges.
+      {
+        start: -2,
+        end: -1,
+        result: [Start.MinusSign("-"), Start.Integer("2"), Shared.Literal(" – "), End.MinusSign("-"), End.Integer("1")],
+      },
+      {
+        start: -1,
+        end: 1,
+        result: [Start.MinusSign("-"), Start.Integer("1"), Shared.Literal(" – "), End.Integer("1")],
+      },
+      {
+        start: 1,
+        end: 2,
+        result: [Start.Integer("1"), Shared.Literal("–"), End.Integer("2")],
+      },
+    ],
+  },
+  // Non-ASCII digits.
+  "ar": {
+    options: {},
+    ranges: [
+      {
+        start: -2,
+        end: -1,
+        result: [Shared.Literal("\u061C"), Shared.MinusSign("-"), Start.Integer("٢"), Shared.Literal("–"), End.Integer("١")],
+      },
+      {
+        start: -1,
+        end: -1,
+        result: [Shared.Approx("~"), Shared.Literal("\u061C"), Shared.MinusSign("-"), Shared.Integer("١")],
+      },
+      {
+        start: -1,
+        end: 0,
+        result: [Start.Literal("\u061C"), Start.MinusSign("-"), Start.Integer("١"), Shared.Literal(" – "), End.Integer("٠")],
+      },
+      {
+        start: 0,
+        end: 0,
+        result: [Shared.Approx("~"), Shared.Integer("٠")],
+      },
+      {
+        start: 0,
+        end: 1,
+        result: [Start.Integer("٠"), Shared.Literal("–"), End.Integer("١")],
+      },
+      {
+        start: 1,
+        end: 1,
+        result: [Shared.Approx("~"), Shared.Integer("١")],
+      },
+      {
+        start: 1,
+        end: 2,
+        result: [Start.Integer("١"), Shared.Literal("–"), End.Integer("٢")],
+      },
+    ],
+  },
+  "th-u-nu-thai": {
+    options: {},
+    ranges: [
+      {
+        start: -2,
+        end: -1,
+        result: [Start.MinusSign("-"), Start.Integer("๒"), Shared.Literal(" - "), End.MinusSign("-"), End.Integer("๑")],
+      },
+      {
+        start: -1,
+        end: -1,
+        result: [Shared.Approx("~"), Shared.MinusSign("-"), Shared.Integer("๑")],
+      },
+      {
+        start: -1,
+        end: 0,
+        result: [Start.MinusSign("-"), Start.Integer("๑"), Shared.Literal(" - "), End.Integer("๐")],
+      },
+      {
+        start: 0,
+        end: 0,
+        result: [Shared.Approx("~"), Shared.Integer("๐")],
+      },
+      {
+        start: 0,
+        end: 1,
+        result: [Start.Integer("๐"), Shared.Literal("-"), End.Integer("๑")],
+      },
+      {
+        start: 1,
+        end: 1,
+        result: [Shared.Approx("~"), Shared.Integer("๑")],
+      },
+      {
+        start: 1,
+        end: 2,
+        result: [Start.Integer("๑"), Shared.Literal("-"), End.Integer("๒")],
+      },
+    ],
+  },
+  // Approximation sign may consist of multiple characters.
+  "no": {
+    options: {},
+    ranges: [
+      {
+        start: 1,
+        end: 1,
+        result: [Shared.Approx("ca."), Shared.Integer("1")],
+      },
+    ],
+  },
+  // Approximation sign can be a word.
+  "ja": {
+    options: {},
+    ranges: [
+      {
+        start: 1,
+        end: 1,
+        result: [Shared.Approx("約"), Shared.Integer("1")],
+      },
+    ],
+  },
+};
+
+for (let [locale, {options, ranges}] of Object.entries(tests)) {
+  let nf = new Intl.NumberFormat(locale, options);
+  for (let {start, end, result} of ranges) {
+    assertRangeParts(nf, start, end, result);
+  }
+}
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);