Test PlainYearMonth.prototype.equals.

test/built-ins/Temporal/PlainYearMonth/prototype/equals/argument-cast.js

@@ -0,0 +1,16 @@
+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainyearmonth.prototype.equals
+description: equals() casts its argument
+features: [Temporal]
+---*/
+
+const nov94 = Temporal.PlainYearMonth.from("1994-11");
+
+assert.sameValue(nov94.equals({ year: 2013, month: 6 }), false, "object");
+assert.sameValue(nov94.equals({ year: 1994, month: 11 }), true, "object");
+assert.sameValue(nov94.equals("2013-06"), false, "string");
+assert.sameValue(nov94.equals("1994-11"), true, "string");
+assert.throws(TypeError, () => nov94.equals({ year: 2013 }), "missing property");

test/built-ins/Temporal/PlainYearMonth/prototype/equals/basic.js

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+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainyearmonth.prototype.equals
+description: Basic tests for equals()
+features: [Temporal]
+---*/
+
+const nov94 = Temporal.PlainYearMonth.from("1994-11");
+const nov94bis = Temporal.PlainYearMonth.from("1994-11");
+const jun13 = Temporal.PlainYearMonth.from("2013-06");
+assert.sameValue(nov94.equals(nov94), true, "same object");
+assert.sameValue(nov94.equals(nov94bis), true, "different object");
+assert.sameValue(nov94.equals(jun13), false, "different year-months");

test/built-ins/Temporal/PlainYearMonth/prototype/equals/compare-calendar.js

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+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainyearmonth.prototype.equals
+description: equals() takes the calendar into account
+includes: [compareArray.js]
+features: [Temporal]
+---*/
+
+const actual = [];
+class CustomCalendar extends Temporal.Calendar {
+  constructor(id) {
+    super("iso8601");
+    this._id = id;
+  }
+  toString() {
+    actual.push(this._id);
+    return this._id;
+  }
+}
+
+const sharedCalendar = new CustomCalendar("a");
+const ym1 = new Temporal.PlainYearMonth(2000, 1, sharedCalendar, 1);
+const ym2 = new Temporal.PlainYearMonth(2000, 1, sharedCalendar, 1);
+assert.sameValue(ym1.equals(ym2), true);
+assert.compareArray(actual, [], "should not call toString if objects are equal");
+
+const ym3 = new Temporal.PlainYearMonth(2000, 1, new CustomCalendar("b"), 1);
+const ym4 = new Temporal.PlainYearMonth(2000, 1, new CustomCalendar("c"), 2);
+assert.sameValue(ym3.equals(ym4), false);
+assert.compareArray(actual, [], "should not call toString if ISO dates differ");
+
+const ym5 = new Temporal.PlainYearMonth(2000, 1, new CustomCalendar("d"), 1);
+const ym6 = new Temporal.PlainYearMonth(2000, 1, new CustomCalendar("e"), 1);
+assert.sameValue(ym5.equals(ym6), false);
+assert.compareArray(actual, ["d", "e"], "order of operations");
+
+actual.splice(0, actual.length); // empty it for the next check
+const ym7 = new Temporal.PlainYearMonth(2000, 1, new CustomCalendar("f"), 1);
+const ym8 = new Temporal.PlainYearMonth(2000, 1, new CustomCalendar("f"), 1);
+assert.sameValue(ym7.equals(ym8), true);
+assert.compareArray(actual, ["f", "f"], "order of operations");

test/built-ins/Temporal/PlainYearMonth/prototype/equals/compare-reference-day.js

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+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainyearmonth.prototype.equals
+description: equals() takes the reference day into account
+features: [Temporal]
+---*/
+
+const iso = Temporal.Calendar.from("iso8601");
+const ym1 = new Temporal.PlainYearMonth(2000, 1, iso, 1);
+const ym2 = new Temporal.PlainYearMonth(2000, 1, iso, 2);
+assert.sameValue(ym1.equals(ym2), false);

test/built-ins/Temporal/PlainYearMonth/prototype/equals/use-internal-slots.js

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+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainyearmonth.prototype.equals
+description: equals() ignores the observable properties and uses internal slots
+features: [Temporal]
+---*/
+
+function CustomError() {}
+
+class AvoidGettersYearMonth extends Temporal.PlainYearMonth {
+  get year() {
+    throw new CustomError();
+  }
+  get month() {
+    throw new CustomError();
+  }
+}
+
+const one = new AvoidGettersYearMonth(2000, 5);
+const two = new AvoidGettersYearMonth(2006, 3);
+assert.sameValue(one.equals(two), false);