test: add basic temporal presence check

Author: legendecas

test/common/index.js

@@ -36,6 +36,17 @@ const bits = ['arm64', 'loong64', 'mips', 'mipsel', 'ppc64', 'riscv64', 's390x',
   .includes(process.arch) ? 64 : 32;
 const hasIntl = !!process.config.variables.v8_enable_i18n_support;
 
+// small-icu doesn't support non-English locales
+const hasFullICU = (() => {
+  try {
+    const january = new Date(9e8);
+    const spanish = new Intl.DateTimeFormat('es', { month: 'long' });
+    return spanish.format(january) === 'enero';
+  } catch {
+    return false;
+  }
+})();
+
 const {
   atob,
   btoa,
@@ -952,6 +963,7 @@ const common = {
   getBufferSources,
   getTTYfd,
   hasIntl,
+  hasFullICU,
   hasCrypto,
   hasQuic,
   hasInspector,

test/parallel/test-icu-env.js

@@ -35,17 +35,7 @@ try {
 }
 
 
-// small-icu doesn't support non-English locales
-const hasFullICU = (() => {
-  try {
-    const january = new Date(9e8);
-    const spanish = new Intl.DateTimeFormat('es', { month: 'long' });
-    return spanish.format(january) === 'enero';
-  } catch {
-    return false;
-  }
-})();
-if (!hasFullICU)
+if (!common.hasFullICU)
   common.skip('small ICU');
 
 const icuVersionMajor = Number(process.config.variables.icu_ver_major ?? 0);

test/parallel/test-temporal-icufull.js

@@ -0,0 +1,19 @@
+// Flags: --harmony-temporal
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+
+if (!process.config.variables.v8_enable_temporal_support) {
+  common.skip('Temporal is not enabled');
+}
+
+// TODO(legendecas): bundle zoneinfo data for small ICU and without ICU builds.
+if (!common.hasFullICU) {
+  common.skip('Built with small ICU');
+}
+
+// Use globalThis.Temporal to workaround linter complaints.
+assert.strictEqual(typeof globalThis.Temporal, 'object');
+const pdt = globalThis.Temporal.Instant.from('1969-07-20T20:17:00Z');
+assert.strictEqual(pdt.toString(), '1969-07-20T20:17:00Z');

test/parallel/test-temporal.js

@@ -0,0 +1,14 @@
+// Flags: --harmony-temporal
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+
+if (!process.config.variables.v8_enable_temporal_support) {
+  common.skip('Temporal is not enabled');
+}
+
+// Use globalThis.Temporal to workaround linter complaints.
+assert.strictEqual(typeof globalThis.Temporal, 'object');
+const pdt = globalThis.Temporal.PlainDateTime.from('1969-07-20T20:17:00');
+assert.strictEqual(pdt.toString(), '1969-07-20T20:17:00');