1 files changed, 187 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/NumberFormat/sign-display.js b/js/src/tests/non262/Intl/NumberFormat/sign-display.js
new file mode 100644
index 0000000000..b18517d847
--- /dev/null
+++ b/js/src/tests/non262/Intl/NumberFormat/sign-display.js
@@ -0,0 +1,187 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+
+const {
+    Nan, Inf, Integer, MinusSign, PlusSign, Decimal, Fraction
+} = NumberFormatParts;
+
+const testcases = [
+    // "auto": Show the sign on negative numbers only.
+    {
+        locale: "en",
+        options: {
+            signDisplay: "auto",
+        },
+        values: [
+            {value: +0, string: "0", parts: [Integer("0")]},
+            {value: -0, string: "-0", parts: [MinusSign("-"), Integer("0")]},
+            {value: 0n, string: "0", parts: [Integer("0")]},
+
+            {value:   1, string: "1", parts: [Integer("1")]},
+            {value:  -1, string: "-1", parts: [MinusSign("-"), Integer("1")]},
+            {value:  1n, string: "1", parts: [Integer("1")]},
+            {value: -1n, string: "-1", parts: [MinusSign("-"), Integer("1")]},
+
+            {value: 0.1, string: "0.1", parts: [Integer("0"), Decimal("."), Fraction("1")]},
+            {value: -0.1, string: "-0.1", parts: [MinusSign("-"), Integer("0"), Decimal("."), Fraction("1")]},
+
+            {value: 0.9, string: "0.9", parts: [Integer("0"), Decimal("."), Fraction("9")]},
+            {value: -0.9, string: "-0.9", parts: [MinusSign("-"), Integer("0"), Decimal("."), Fraction("9")]},
+
+            {value:  Infinity, string: "∞", parts: [Inf("∞")]},
+            {value: -Infinity, string: "-∞", parts: [MinusSign("-"), Inf("∞")]},
+
+            {value:  NaN, string: "NaN", parts: [Nan("NaN")]},
+            {value: -NaN, string: "NaN", parts: [Nan("NaN")]},
+        ],
+    },
+
+    // "never": Show the sign on neither positive nor negative numbers.
+    {
+        locale: "en",
+        options: {
+            signDisplay: "never",
+        },
+        values: [
+            {value: +0, string: "0", parts: [Integer("0")]},
+            {value: -0, string: "0", parts: [Integer("0")]},
+            {value: 0n, string: "0", parts: [Integer("0")]},
+
+            {value:   1, string: "1", parts: [Integer("1")]},
+            {value:  -1, string: "1", parts: [Integer("1")]},
+            {value:  1n, string: "1", parts: [Integer("1")]},
+            {value: -1n, string: "1", parts: [Integer("1")]},
+
+            {value: 0.1, string: "0.1", parts: [Integer("0"), Decimal("."), Fraction("1")]},
+            {value: -0.1, string: "0.1", parts: [Integer("0"), Decimal("."), Fraction("1")]},
+
+            {value: 0.9, string: "0.9", parts: [Integer("0"), Decimal("."), Fraction("9")]},
+            {value: -0.9, string: "0.9", parts: [Integer("0"), Decimal("."), Fraction("9")]},
+
+            {value:  Infinity, string: "∞", parts: [Inf("∞")]},
+            {value: -Infinity, string: "∞", parts: [Inf("∞")]},
+
+            {value:  NaN, string: "NaN", parts: [Nan("NaN")]},
+            {value: -NaN, string: "NaN", parts: [Nan("NaN")]},
+        ],
+    },
+
+    // "always": Show the sign on positive and negative numbers including zero.
+    {
+        locale: "en",
+        options: {
+            signDisplay: "always",
+        },
+        values: [
+            {value: +0, string: "+0", parts: [PlusSign("+"), Integer("0")]},
+            {value: -0, string: "-0", parts: [MinusSign("-"), Integer("0")]},
+            {value: 0n, string: "+0", parts: [PlusSign("+"), Integer("0")]},
+
+            {value:   1, string: "+1", parts: [PlusSign("+"), Integer("1")]},
+            {value:  -1, string: "-1", parts: [MinusSign("-"), Integer("1")]},
+            {value:  1n, string: "+1", parts: [PlusSign("+"), Integer("1")]},
+            {value: -1n, string: "-1", parts: [MinusSign("-"), Integer("1")]},
+
+            {value: 0.1, string: "+0.1", parts: [PlusSign("+"), Integer("0"), Decimal("."), Fraction("1")]},
+            {value: -0.1, string: "-0.1", parts: [MinusSign("-"), Integer("0"), Decimal("."), Fraction("1")]},
+
+            {value: 0.9, string: "+0.9", parts: [PlusSign("+"), Integer("0"), Decimal("."), Fraction("9")]},
+            {value: -0.9, string: "-0.9", parts: [MinusSign("-"), Integer("0"), Decimal("."), Fraction("9")]},
+
+            {value:  Infinity, string: "+∞", parts: [PlusSign("+"), Inf("∞")]},
+            {value: -Infinity, string: "-∞", parts: [MinusSign("-"), Inf("∞")]},
+
+            {value:  NaN, string: "+NaN", parts: [PlusSign("+"), Nan("NaN")]},
+            {value: -NaN, string: "+NaN", parts: [PlusSign("+"), Nan("NaN")]},
+        ],
+    },
+
+    // "exceptZero": Show the sign on positive and negative numbers but not zero.
+    {
+        locale: "en",
+        options: {
+            signDisplay: "exceptZero",
+        },
+        values: [
+            {value: +0, string: "0", parts: [Integer("0")]},
+            {value: -0, string: "0", parts: [Integer("0")]},
+            {value: 0n, string: "0", parts: [Integer("0")]},
+
+            {value:   1, string: "+1", parts: [PlusSign("+"), Integer("1")]},
+            {value:  -1, string: "-1", parts: [MinusSign("-"), Integer("1")]},
+            {value:  1n, string: "+1", parts: [PlusSign("+"), Integer("1")]},
+            {value: -1n, string: "-1", parts: [MinusSign("-"), Integer("1")]},
+
+            {value: 0.1, string: "+0.1", parts: [PlusSign("+"), Integer("0"), Decimal("."), Fraction("1")]},
+            {value: -0.1, string: "-0.1", parts: [MinusSign("-"), Integer("0"), Decimal("."), Fraction("1")]},
+
+            {value: 0.9, string: "+0.9", parts: [PlusSign("+"), Integer("0"), Decimal("."), Fraction("9")]},
+            {value: -0.9, string: "-0.9", parts: [MinusSign("-"), Integer("0"), Decimal("."), Fraction("9")]},
+
+            {value:  Infinity, string: "+∞", parts: [PlusSign("+"), Inf("∞")]},
+            {value: -Infinity, string: "-∞", parts: [MinusSign("-"), Inf("∞")]},
+
+            {value:  NaN, string: "NaN", parts: [Nan("NaN")]},
+            {value: -NaN, string: "NaN", parts: [Nan("NaN")]},
+        ],
+    },
+
+    // Tests with suppressed fractional digits.
+
+    // "auto": Show the sign on negative numbers only.
+    {
+        locale: "en",
+        options: {
+            signDisplay: "auto",
+            maximumFractionDigits: 0,
+        },
+        values: [
+            {value: +0.1, string: "0", parts: [Integer("0")]},
+            {value: -0.1, string: "-0", parts: [MinusSign("-"), Integer("0")]},
+        ],
+    },
+
+    // "never": Show the sign on neither positive nor negative numbers.
+    {
+        locale: "en",
+        options: {
+            signDisplay: "never",
+            maximumFractionDigits: 0,
+        },
+        values: [
+            {value: +0.1, string: "0", parts: [Integer("0")]},
+            {value: -0.1, string: "0", parts: [Integer("0")]},
+        ],
+    },
+
+    // "always": Show the sign on positive and negative numbers including zero.
+    {
+        locale: "en",
+        options: {
+            signDisplay: "always",
+            maximumFractionDigits: 0,
+        },
+        values: [
+            {value: +0.1, string: "+0", parts: [PlusSign("+"), Integer("0")]},
+            {value: -0.1, string: "-0", parts: [MinusSign("-"), Integer("0")]},
+        ],
+    },
+
+    // "exceptZero": Show the sign on positive and negative numbers but not zero.
+    {
+        locale: "en",
+        options: {
+            signDisplay: "exceptZero",
+            maximumFractionDigits: 0,
+        },
+
+        values: [
+            {value: +0.1, string: "0", parts: [Integer("0")]},
+            {value: -0.1, string: "0", parts: [Integer("0")]},
+        ],
+    }
+];
+
+runNumberFormattingTestcases(testcases);
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);