1 files changed, 68 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/NumberFormat/constructor-unitDisplay.js b/js/src/tests/test262/intl402/NumberFormat/constructor-unitDisplay.js
new file mode 100644
index 0000000000..54b1594aa5
--- /dev/null
+++ b/js/src/tests/test262/intl402/NumberFormat/constructor-unitDisplay.js
@@ -0,0 +1,68 @@
+// Copyright 2019 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-initializenumberformat
+description: Checks handling of the compactDisplay option to the NumberFormat constructor.
+info: |
+    InitializeNumberFormat ( numberFormat, locales, options )
+
+    23. Let signDisplay be ? GetOption(options, "signDisplay", "string", « "auto", "never", "always", "exceptZero" », "auto").
+    24. Set numberFormat.[[SignDisplay]] to signDisplay.
+
+features: [Intl.NumberFormat-unified]
+---*/
+
+const values = [
+  [undefined, "short"],
+  ["short"],
+  ["narrow"],
+  ["long"],
+];
+
+for (const [value, expected = value] of values) {
+  const nf = new Intl.NumberFormat([], {
+    style: "unit",
+    unitDisplay: value,
+    unit: "hour",
+  });
+  const resolvedOptions = nf.resolvedOptions();
+  assert.sameValue("unitDisplay" in resolvedOptions, true);
+  assert.sameValue(resolvedOptions.unitDisplay, expected);
+}
+
+for (const [value, expected = value] of values) {
+  const nf = new Intl.NumberFormat([], {
+    style: "unit",
+    unitDisplay: value,
+    unit: "percent",
+  });
+  const resolvedOptions = nf.resolvedOptions();
+  assert.sameValue("unitDisplay" in resolvedOptions, true);
+  assert.sameValue(resolvedOptions.unitDisplay, expected);
+}
+
+for (const [value] of values) {
+  const nf = new Intl.NumberFormat([], {
+    style: "percent",
+    unitDisplay: value,
+  });
+  const resolvedOptions = nf.resolvedOptions();
+  assert.sameValue("unitDisplay" in resolvedOptions, false);
+  assert.sameValue(resolvedOptions.unitDisplay, undefined);
+}
+
+const invalidValues = [
+  "",
+  "Short",
+  "s",
+  "\u017Fhort",
+];
+
+for (const unitDisplay of invalidValues) {
+  assert.throws(RangeError, () => {
+    new Intl.NumberFormat([], { unitDisplay });
+  });
+}
+
+reportCompare(0, 0);