Add tests for proposal, "Intl.DisplayNames v2"

https://tc39.es/intl-displaynames-v2/

test/intl402/DisplayNames/options-languagedisplay-abrupt-throws.js

@@ -0,0 +1,37 @@
+// 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-Intl.DisplayNames
+description: Return abrupt completion from GetOption fallback
+info: |
+  Intl.DisplayNames ( locales , options )
+
+  1. If NewTarget is undefined, throw a TypeError exception.
+  2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%",
+    « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
+  ...
+  4. Let options be ? ToObject(options).
+  ...
+  12. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency" », undefined).
+  13. If type is undefined, throw a TypeError exception.
+  ...
+  24. Let languageDisplay be ? GetOption(options, "languageDisplay", "string", « "dialect", "standard" », "dialect").
+  ...
+
+  GetOption ( options, property, type, values, fallback )
+
+  1. Let value be ? Get(options, property).
+  ...
+features: [Intl.DisplayNames-v2]
+locale: [en]
+---*/
+
+var options = { type: 'language' };
+Object.defineProperty(options, 'languageDisplay', {
+  get() { throw new Test262Error(); },
+});
+
+assert.throws(Test262Error, () => {
+  new Intl.DisplayNames('en', options);
+});

test/intl402/DisplayNames/options-languagedisplay-invalid-throws.js

@@ -0,0 +1,57 @@
+// 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-Intl.DisplayNames
+description: >
+  Return abrupt completion from an invalid fallback option
+info: |
+  Intl.DisplayNames ( locales , options )
+
+  1. If NewTarget is undefined, throw a TypeError exception.
+  2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%",
+    « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
+  ...
+  4. Let options be ? ToObject(options).
+  ...
+  8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
+  ...
+  12. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency" », "language").
+  13. If type is undefined, throw a TypeError exception.
+  ...
+  24. Let languageDisplay be ? GetOption(options, "languageDisplay", "string", « "dialect", "standard" », "dialect").
+  ...
+
+  GetOption ( options, property, type, values, fallback )
+
+  1. Let value be ? Get(options, property).
+  2. If value is not undefined, then
+    ...
+    c. If type is "string", then
+      i. Let value be ? ToString(value).
+    d. If values is not undefined, then
+      i. If values does not contain an element equal to value, throw a RangeError exception.
+  ...
+features: [Intl.DisplayNames-v2]
+locale: [en]
+---*/
+
+assert.throws(RangeError, () => {
+  new Intl.DisplayNames('en', {languageDisplay: 'err', type: 'language'});
+}, 'err');
+
+assert.throws(RangeError, () => {
+  new Intl.DisplayNames('en', {languageDisplay: 'standar', type: 'language'});
+}, 'standar, not standard');
+
+assert.throws(RangeError, () => {
+  new Intl.DisplayNames('en', {languageDisplay: null, type: 'language'});
+}, 'null');
+
+assert.throws(RangeError, () => {
+  new Intl.DisplayNames('en', {languageDisplay: '', type: 'language'});
+}, 'the empty string');
+
+assert.throws(RangeError, () => {
+  new Intl.DisplayNames('en', {languageDisplay: ['dialect', 'standard'], type: 'language'});
+}, 'an array with the valid options is not necessarily valid');

test/intl402/DisplayNames/options-languagedisplay-toString-abrupt-throws.js

@@ -0,0 +1,55 @@
+// 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-Intl.DisplayNames
+description: >
+  Return abrupt completion from GetOption fallback
+info: |
+  Intl.DisplayNames ( locales , options )
+
+  1. If NewTarget is undefined, throw a TypeError exception.
+  2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%",
+    « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
+  ...
+  4. Let options be ? ToObject(options).
+  ...
+  8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
+  ...
+  24. Let languageDisplay be ? GetOption(options, "languageDisplay", "string", « "dialect", "standard" », "dialect").
+  ...
+
+  GetOption ( options, property, type, values, fallback )
+
+  1. Let value be ? Get(options, property).
+  ...
+features: [Intl.DisplayNames-v2, Symbol]
+locale: [en]
+---*/
+
+assert.throws(Test262Error, () => {
+  new Intl.DisplayNames('en', {
+    type: 'language', languageDisplay: { toString() { throw new Test262Error(); }}
+  });
+}, 'from toString');
+
+assert.throws(Test262Error, () => {
+  new Intl.DisplayNames('en', {
+    type: 'language',
+    languageDisplay: {toString: undefined, valueOf() {throw new Test262Error(); }}
+  });
+}, 'from valueOf');
+
+assert.throws(Test262Error, () => {
+  new Intl.DisplayNames('en', {
+    type: 'language',
+    languageDisplay: { [Symbol.toPrimitive]() { throw new Test262Error(); } }
+  });
+}, 'from ToPrimitive');
+
+assert.throws(TypeError, () => {
+  new Intl.DisplayNames('en', {
+    type: 'language',
+    languageDisplay: Symbol()
+  });
+}, 'symbol value');

test/intl402/DisplayNames/options-languagedisplay-valid.js

@@ -0,0 +1,47 @@
+// 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-Intl.DisplayNames
+description: Valid options for languageDisplay
+info: |
+  Intl.DisplayNames ( locales , options )
+
+  1. If NewTarget is undefined, throw a TypeError exception.
+  2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%",
+    « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
+  ...
+  4. Let options be ? ToObject(options).
+  ...
+  8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
+  ...
+  10. Let style be ? GetOption(options, "style", "string", « "narrow", "short", "long" », "long").
+  ...
+  12. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency" », undefined).
+  13. If type is undefined, throw a TypeError exception.
+  ...
+  24. Let languageDisplay be ? GetOption(options, "languageDisplay", "string", « "dialect", "standard" », "dialect").
+  ...
+
+  GetOption ( options, property, type, values, fallback )
+
+  1. Let value be ? Get(options, property).
+  ...
+features: [Intl.DisplayNames-v2]
+locale: [en]
+---*/
+
+// results for option values verified in the tests for resolvedOptions
+
+const languageDisplays = [
+  undefined,
+  'dialect',
+  'standard'
+];
+
+languageDisplays.forEach(languageDisplay => {
+  const obj = new Intl.DisplayNames('en', { languageDisplay, type: 'language'});
+
+  assert(obj instanceof Intl.DisplayNames, `instanceof check - ${languageDisplay}`);
+  assert.sameValue(Object.getPrototypeOf(obj), Intl.DisplayNames.prototype, `proto check - ${languageDisplay}`);
+});

test/intl402/DisplayNames/prototype/of/type-calendar-invalid.js

@@ -0,0 +1,45 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-Intl.DisplayNames.prototype.of
+description: Throws a RangeError for invalid `calendar` codes
+features: [Intl.DisplayNames-v2]
+---*/
+
+var displayNames = new Intl.DisplayNames(undefined, {type: 'calendar'});
+
+assert.throws(RangeError, function() {
+  displayNames.of('00');
+}, 'insufficient length');
+
+assert.throws(RangeError, function() {
+  displayNames.of('000000000');
+}, 'excessive length');
+
+assert.throws(RangeError, function() {
+  displayNames.of('-00000000');
+}, 'leading separator (dash)');
+
+assert.throws(RangeError, function() {
+  displayNames.of('_00000000');
+}, 'leading separator (underscore)');
+
+assert.throws(RangeError, function() {
+  displayNames.of('00000000-');
+}, 'trailing separator (dash)');
+
+assert.throws(RangeError, function() {
+  displayNames.of('00000000_');
+}, 'trailing separator (underscore)');
+
+assert.throws(RangeError, function() {
+  displayNames.of(' abcdef');
+}, 'leading space');
+
+assert.throws(RangeError, function() {
+  displayNames.of('abcdef ');
+}, 'trailing space');
+
+assert.throws(RangeError, function() {
+  displayNames.of('abc def');
+}, 'interstitial space');

test/intl402/DisplayNames/prototype/of/type-calendar-valid.js

@@ -0,0 +1,32 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-Intl.DisplayNames.prototype.of
+description: Returns string value for valid `calendar` codes
+features: [Intl.DisplayNames-v2]
+---*/
+
+var displayNames = new Intl.DisplayNames(undefined, {type: 'calendar'});
+
+assert.sameValue(typeof displayNames.of('01234567'), 'string', '[0-7]');
+assert.sameValue(typeof displayNames.of('899'), 'string', '[89]');
+
+assert.sameValue(typeof displayNames.of('abcdefgh'), 'string', '[a-h]');
+assert.sameValue(typeof displayNames.of('ijklmnop'), 'string', '[i-p]');
+assert.sameValue(typeof displayNames.of('qrstuvwx'), 'string', '[q-x]');
+assert.sameValue(typeof displayNames.of('yzz'), 'string', '[yz]');
+
+assert.sameValue(typeof displayNames.of('ABCDEFGH'), 'string', '[A-H]');
+assert.sameValue(typeof displayNames.of('IJKLMNOP'), 'string', '[I-P]');
+assert.sameValue(typeof displayNames.of('QRSTUVWX'), 'string', '[Q-X]');
+assert.sameValue(typeof displayNames.of('YZZ'), 'string', '[YZ]');
+
+assert.sameValue(typeof displayNames.of('123-abc'), 'string', '2 segments, minimum length, dash');
+assert.sameValue(typeof displayNames.of('12345678-abcdefgh'), 'string', '2 segments, maximum length, dash');
+assert.sameValue(typeof displayNames.of('123-abc-ABC'), 'string', '3 segments, minimum length, dash');
+assert.sameValue(typeof displayNames.of('12345678-abcdefgh-ABCDEFGH'), 'string', '3 segments, maximum length, dash');
+
+assert.sameValue(typeof displayNames.of('123_abc'), 'string', '2 segments, minimum length, underscore');
+assert.sameValue(typeof displayNames.of('12345678_abcdefgh'), 'string', '2 segments, maximum length, underscore');
+assert.sameValue(typeof displayNames.of('123_abc_ABC'), 'string', '3 segments, minimum length, underscore');
+assert.sameValue(typeof displayNames.of('12345678_abcdefgh_ABCDEFGH'), 'string', '3 segments, maximum length, underscore');

test/intl402/DisplayNames/prototype/of/type-datetimefield-invalid.js

@@ -0,0 +1,37 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-Intl.DisplayNames.prototype.of
+description: Throws a RangeError for invalid `dateTimeField` codes
+features: [Intl.DisplayNames-v2]
+---*/
+
+var displayNames = new Intl.DisplayNames(undefined, {type: 'dateTimeField'});
+
+assert.throws(RangeError, function() {
+  displayNames.of('');
+}, 'empty string');
+
+assert.throws(RangeError, function() {
+  displayNames.of('timezoneName');
+}, 'timezoneName');
+
+assert.throws(RangeError, function() {
+  displayNames.of('timezonename');
+}, 'timezonename');
+
+assert.throws(RangeError, function() {
+  displayNames.of('millisecond');
+}, 'millisecond');
+
+assert.throws(RangeError, function() {
+  displayNames.of('seconds');
+}, 'seconds');
+
+assert.throws(RangeError, function() {
+  displayNames.of(' year');
+}, 'year (with leading space)');
+
+assert.throws(RangeError, function() {
+  displayNames.of('year ');
+}, 'year (with trailing space)');

test/intl402/DisplayNames/prototype/of/type-datetimefield-valid.js

@@ -0,0 +1,22 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-Intl.DisplayNames.prototype.of
+description: Returns string value for valid `dateTimeField` codes
+features: [Intl.DisplayNames-v2]
+---*/
+
+var displayNames = new Intl.DisplayNames(undefined, {type: 'dateTimeField'});
+
+assert.sameValue(typeof displayNames.of('era'), 'string', 'era');
+assert.sameValue(typeof displayNames.of('year'), 'string', 'year');
+assert.sameValue(typeof displayNames.of('quarter'), 'string', 'quarter');
+assert.sameValue(typeof displayNames.of('month'), 'string', 'month');
+assert.sameValue(typeof displayNames.of('weekOfYear'), 'string', 'weekOfYear');
+assert.sameValue(typeof displayNames.of('weekday'), 'string', 'weekday');
+assert.sameValue(typeof displayNames.of('day'), 'string', 'day');
+assert.sameValue(typeof displayNames.of('dayPeriod'), 'string', 'dayPeriod');
+assert.sameValue(typeof displayNames.of('hour'), 'string', 'hour');
+assert.sameValue(typeof displayNames.of('minute'), 'string', 'minute');
+assert.sameValue(typeof displayNames.of('second'), 'string', 'second');
+assert.sameValue(typeof displayNames.of('timeZoneName'), 'string', 'timeZoneName');

test/intl402/DisplayNames/prototype/resolvedOptions/option-fallback.js

@@ -25,6 +25,7 @@ info: |
   [[Style]]: "style"
   [[Type]]: "type"
   [[Fallback]]: "fallback"
+  [[LanguageDisplay]]: "languageDisplay"
 
   Intl.DisplayNames ( locales , options )
 

test/intl402/DisplayNames/prototype/resolvedOptions/option-languagedisplay.js

@@ -0,0 +1,68 @@
+// 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-Intl.DisplayNames.prototype.resolvedOptions
+description: Values for the languageDisplay option
+info: |
+  Intl.DisplayNames.prototype.resolvedOptions ()
+
+  1. Let pr be the this value.
+  2. If Type(pr) is not Object or pr does not have an [[InitializedDisplayNames]] internal slot,
+    throw a TypeError exception.
+  3. Let options be ! ObjectCreate(%ObjectPrototype%).
+  4. For each row of Table 6, except the header row, in table order, do
+    a. Let p be the Property value of the current row.
+    b. Let v be the value of pr's internal slot whose name is the Internal Slot value of the current row.
+    c. If v is not undefined, then
+      i. Perform ! CreateDataPropertyOrThrow(options, p, v).
+  6. Return options.
+
+  Table 6: Resolved Options of DisplayNames Instances
+
+  [[Locale]]: "locale"
+  [[Style]]: "style"
+  [[Type]]: "type"
+  [[Fallback]]: "fallback"
+  [[LanguageDisplay]]: "languageDisplay"
+
+  Intl.DisplayNames ( locales , options )
+
+  ...
+  24. Let languageDisplay be ? GetOption(options, "languageDisplay", "string",
+      « "dialect", "standard" », "dialect").
+  25. If type is "language", then
+      a. Set displayNames.[[LanguageDisplay]] to languageDisplay.
+      b. Let typeFields be typeFields.[[<languageDisplay>]].
+      c. Assert: typeFields is a Record (see 1.4.3).
+  ...
+
+  CreateDataProperty ( O, P, V )
+
+  ...
+  3. Let newDesc be the PropertyDescriptor { [[Value]]: V, [[Writable]]: true, [[Enumerable]]: true,
+    [[Configurable]]: true }.
+  ...
+locale: [en-US]
+features: [Intl.DisplayNames-v2]
+includes: [propertyHelper.js]
+---*/
+
+var dn;
+
+dn = new Intl.DisplayNames('en-US', { type: 'language', languageDisplay: 'dialect' });
+
+verifyProperty(dn.resolvedOptions(), 'languageDisplay', {
+  value: 'dialect',
+  writable: true,
+  enumerable: true,
+  configurable: true
+});
+
+dn = new Intl.DisplayNames('en-US', { type: 'language', languageDisplay: 'standard' });
+
+verifyProperty(dn.resolvedOptions(), 'languageDisplay', {
+  value: 'standard',
+  writable: true,
+  enumerable: true,
+  configurable: true
+});

test/intl402/DisplayNames/prototype/resolvedOptions/option-style.js

@@ -25,6 +25,7 @@ info: |
   [[Style]]: "style"
   [[Type]]: "type"
   [[Fallback]]: "fallback"
+  [[LanguageDisplay]]: "languageDisplay"
 
   Intl.DisplayNames ( locales , options )
 

test/intl402/DisplayNames/prototype/resolvedOptions/option-type.js

@@ -25,6 +25,7 @@ info: |
   [[Style]]: "style"
   [[Type]]: "type"
   [[Fallback]]: "fallback"
+  [[LanguageDisplay]]: "languageDisplay"
 
   Intl.DisplayNames ([ locales [ , options ]])