Temporal: Add tests covering options bag argument of getTimeZoneTransition

test/built-ins/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/direction-undefined.js

@@ -0,0 +1,14 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: If using options bag form, direction property is required
+info: |
+  1. Let _direction_ be ? GetDirectionOption(_directionParam_).
+features: [Temporal]
+---*/
+
+const zdt = new Temporal.ZonedDateTime(0n, "UTC");
+assert.throws(RangeError, () => zdt.getTimeZoneTransition({}));
+assert.throws(RangeError, () => zdt.getTimeZoneTransition({ direction: undefined }));

test/built-ins/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/direction-wrong-type.js

@@ -0,0 +1,18 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: Value of direction property cannot be a primitive other than string
+info: |
+  1. Let _direction_ be ? GetDirectionOption(_directionParam_).
+features: [Temporal]
+---*/
+
+const zdt = new Temporal.ZonedDateTime(0n, "UTC");
+
+const rangeErrorValues = [false, 42, 55n, null];
+for (const badValue of rangeErrorValues) {
+  assert.throws(RangeError, () => zdt.getTimeZoneTransition({ direction: badValue }), "Non-Symbol throws a RangeError");
+}
+assert.throws(TypeError, () => zdt.getTimeZoneTransition({ direction: Symbol("next") }), "Symbol throws a TypeError");

test/built-ins/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/options-undefined.js

@@ -0,0 +1,15 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: Options argument is required
+info: |
+  1. If _directionParam_ is *undefined*, throw a *TypeError* exception.
+features: [Temporal]
+---*/
+
+const zdt = new Temporal.ZonedDateTime(0n, "UTC");
+
+assert.throws(TypeError, () => zdt.getTimeZoneTransition());
+assert.throws(TypeError, () => zdt.getTimeZoneTransition(undefined));

test/built-ins/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/wrong-string.js

@@ -0,0 +1,25 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: >
+  Shorthand form is treated the same as options bag form with respect to
+  incorrect strings
+info: |
+  1. If _directionParam_ is a String, then
+    1. Let _paramString_ be _directionParam_.
+    1. Set _roundTo_ to OrdinaryObjectCreate(*null*).
+    1. Perform ! CreateDataPropertyOrThrow(_directionParam_, *"direction"*, _paramString_).
+  ...
+  1. Let _direction_ be ? GetDirectionOption(_directionParam_).
+features: [Temporal]
+---*/
+
+const zdt = new Temporal.ZonedDateTime(0n, "UTC");
+
+const badStrings = ['PREVIOUS', 'following', 'next\0', 'prevıous'];
+for (const badString of badStrings) {
+  assert.throws(RangeError, () => zdt.getTimeZoneTransition(badString));
+  assert.throws(RangeError, () => zdt.getTimeZoneTransition({ direction: badString }));
+}

test/built-ins/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/wrong-type.js

@@ -0,0 +1,21 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: >
+  Options bag cannot be anything other than a string, an object, or undefined
+info: |
+  1. If _directionParam_ is a String, then
+    ...
+  1. Else,
+    1. Set _directionParam_ to ? GetOptionsObject(_directionParam_).
+features: [Temporal]
+---*/
+
+const zdt = new Temporal.ZonedDateTime(0n, "UTC");
+
+const badValues = [false, 42, 55n, Symbol("foo"), null];
+for (const badValue of badValues) {
+  assert.throws(TypeError, () => zdt.getTimeZoneTransition(badValue));
+}