1 files changed, 136 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/NumberFormat/notation-engineering.js b/js/src/tests/non262/Intl/NumberFormat/notation-engineering.js
new file mode 100644
index 0000000000..b4c0e19e53
--- /dev/null
+++ b/js/src/tests/non262/Intl/NumberFormat/notation-engineering.js
@@ -0,0 +1,136 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+
+const {
+    Nan, Inf, Integer, MinusSign, PlusSign, Decimal, Fraction, Group,
+    ExponentSeparator, ExponentInteger, ExponentMinusSign,
+} = NumberFormatParts;
+
+const testcases = [
+    {
+        locale: "en",
+        options: {
+            notation: "engineering",
+        },
+        values: [
+            {value: +0, string: "0E0", parts: [Integer("0"), ExponentSeparator("E"), ExponentInteger("0")]},
+            {value: -0, string: "-0E0", parts: [MinusSign("-"), Integer("0"), ExponentSeparator("E"), ExponentInteger("0")]},
+            {value: 0n, string: "0E0", parts: [Integer("0"), ExponentSeparator("E"), ExponentInteger("0")]},
+
+            {value: 1, string: "1E0", parts: [Integer("1"), ExponentSeparator("E"), ExponentInteger("0")]},
+            {value: 10, string: "10E0", parts: [Integer("10"), ExponentSeparator("E"), ExponentInteger("0")]},
+            {value: 100, string: "100E0", parts: [Integer("100"), ExponentSeparator("E"), ExponentInteger("0")]},
+            {value: 1000, string: "1E3", parts: [Integer("1"), ExponentSeparator("E"), ExponentInteger("3")]},
+            {value: 10000, string: "10E3", parts: [Integer("10"), ExponentSeparator("E"), ExponentInteger("3")]},
+            {value: 100000, string: "100E3", parts: [Integer("100"), ExponentSeparator("E"), ExponentInteger("3")]},
+            {value: 1000000, string: "1E6", parts: [Integer("1"), ExponentSeparator("E"), ExponentInteger("6")]},
+
+            {value: 1n, string: "1E0", parts: [Integer("1"), ExponentSeparator("E"), ExponentInteger("0")]},
+            {value: 10n, string: "10E0", parts: [Integer("10"), ExponentSeparator("E"), ExponentInteger("0")]},
+            {value: 100n, string: "100E0", parts: [Integer("100"), ExponentSeparator("E"), ExponentInteger("0")]},
+            {value: 1000n, string: "1E3", parts: [Integer("1"), ExponentSeparator("E"), ExponentInteger("3")]},
+            {value: 10000n, string: "10E3", parts: [Integer("10"), ExponentSeparator("E"), ExponentInteger("3")]},
+            {value: 100000n, string: "100E3", parts: [Integer("100"), ExponentSeparator("E"), ExponentInteger("3")]},
+            {value: 1000000n, string: "1E6", parts: [Integer("1"), ExponentSeparator("E"), ExponentInteger("6")]},
+
+            {value: 0.1, string: "100E-3", parts: [Integer("100"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("3")]},
+            {value: 0.01, string: "10E-3", parts: [Integer("10"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("3")]},
+            {value: 0.001, string: "1E-3", parts: [Integer("1"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("3")]},
+            {value: 0.0001, string: "100E-6", parts: [Integer("100"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("6")]},
+            {value: 0.00001, string: "10E-6", parts: [Integer("10"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("6")]},
+            {value: 0.000001, string: "1E-6", parts: [Integer("1"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("6")]},
+            {value: 0.0000001, string: "100E-9", parts: [Integer("100"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("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")]},
+        ],
+    },
+
+    // Exponent modifications take place early, so while in the "standard" notation
+    // `Intl.NumberFormat("en", {maximumFractionDigits: 0}).format(0.1)` returns "0", for
+    // "engineering" notation the result string is not "0", but instead "100E-3".
+
+    {
+        locale: "en",
+        options: {
+            notation: "engineering",
+            maximumFractionDigits: 0,
+        },
+        values: [
+            {value: 0.1, string: "100E-3", parts: [
+                Integer("100"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("3")
+            ]},
+        ],
+    },
+
+    {
+        locale: "en",
+        options: {
+            notation: "engineering",
+            minimumFractionDigits: 4,
+        },
+        values: [
+            {value: 10, string: "10.0000E0", parts: [
+                Integer("10"), Decimal("."), Fraction("0000"), ExponentSeparator("E"), ExponentInteger("0")
+            ]},
+            {value: 0.1, string: "100.0000E-3", parts: [
+                Integer("100"), Decimal("."), Fraction("0000"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("3")
+            ]},
+        ],
+    },
+
+    {
+        locale: "en",
+        options: {
+            notation: "engineering",
+            minimumIntegerDigits: 4,
+        },
+        values: [
+            {value: 10, string: "0,010E0", parts: [
+                Integer("0"), Group(","), Integer("010"), ExponentSeparator("E"), ExponentInteger("0")
+            ]},
+            {value: 0.1, string: "0,100E-3", parts: [
+                Integer("0"), Group(","), Integer("100"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("3")
+            ]},
+        ],
+    },
+
+    {
+        locale: "en",
+        options: {
+            notation: "engineering",
+            minimumSignificantDigits: 4,
+        },
+        values: [
+            {value: 10, string: "10.00E0", parts: [
+                Integer("10"), Decimal("."), Fraction("00"), ExponentSeparator("E"), ExponentInteger("0")
+            ]},
+            {value: 0.1, string: "100.0E-3", parts: [
+                Integer("100"), Decimal("."), Fraction("0"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("3")
+            ]},
+        ],
+    },
+
+    {
+        locale: "en",
+        options: {
+            notation: "engineering",
+            maximumSignificantDigits: 1,
+        },
+        values: [
+            {value: 12, string: "10E0", parts: [
+                Integer("10"), ExponentSeparator("E"), ExponentInteger("0")
+            ]},
+            {value: 0.12, string: "100E-3", parts: [
+                Integer("100"), ExponentSeparator("E"), ExponentMinusSign("-"), ExponentInteger("3")
+            ]},
+        ],
+    },
+];
+
+runNumberFormattingTestcases(testcases);
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);