diff --git a/test/intl/IntlTests.mjs b/test/intl/IntlTests.mjs
new file mode 100644
index 00000000..6fcf5875
--- /dev/null
+++ b/test/intl/IntlTests.mjs
@@ -0,0 +1,134 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+import * as Js_exn from "rescript/lib/es6/js_exn.js";
+import * as Caml_option from "rescript/lib/es6/caml_option.js";
+import * as Core__Option from "../../src/Core__Option.mjs";
+import * as Intl__LocaleTest from "./Intl__LocaleTest.mjs";
+import * as Caml_js_exceptions from "rescript/lib/es6/caml_js_exceptions.js";
+import * as Intl__CollatorTest from "./Intl__CollatorTest.mjs";
+import * as Intl__SegmenterTest from "./Intl__SegmenterTest.mjs";
+import * as Intl__ListFormatTest from "./Intl__ListFormatTest.mjs";
+import * as Intl__PluralRulesTest from "./Intl__PluralRulesTest.mjs";
+import * as Intl__NumberFormatTest from "./Intl__NumberFormatTest.mjs";
+import * as Intl__DateTimeFormatTest from "./Intl__DateTimeFormatTest.mjs";
+import * as Intl__RelativeTimeFormatTest from "./Intl__RelativeTimeFormatTest.mjs";
+
+console.log("---");
+
+console.log("Intl");
+
+console.log(Intl.getCanonicalLocales("EN-US"));
+
+console.log(Intl.getCanonicalLocales([
+          "EN-US",
+          "Fr"
+        ]));
+
+try {
+  console.log(Intl.getCanonicalLocales("bloop"));
+}
+catch (raw_e){
+  var e = Caml_js_exceptions.internalToOCamlException(raw_e);
+  if (e.RE_EXN_ID === Js_exn.$$Error) {
+    console.error(e._1);
+  } else {
+    throw e;
+  }
+}
+
+try {
+  console.log(Intl.supportedValuesOf("calendar"));
+  console.log(Intl.supportedValuesOf("collation"));
+  console.log(Intl.supportedValuesOf("currency"));
+  console.log(Intl.supportedValuesOf("numberingSystem"));
+  console.log(Intl.supportedValuesOf("timeZone"));
+  console.log(Intl.supportedValuesOf("unit"));
+}
+catch (raw_e$1){
+  var e$1 = Caml_js_exceptions.internalToOCamlException(raw_e$1);
+  if (e$1.RE_EXN_ID === Js_exn.$$Error) {
+    console.error(e$1._1);
+  } else {
+    throw e$1;
+  }
+}
+
+try {
+  Intl.supportedValuesOf("someInvalidKey");
+  console.error("Shouldn't have been hit");
+}
+catch (raw_e$2){
+  var e$2 = Caml_js_exceptions.internalToOCamlException(raw_e$2);
+  if (e$2.RE_EXN_ID === Js_exn.$$Error) {
+    var e$3 = e$2._1;
+    var message = Core__Option.map(e$3.message, (function (prim) {
+            return prim.toLowerCase();
+          }));
+    var exit = 0;
+    if (message === "invalid key : someinvalidkey") {
+      console.log("Caught expected error");
+    } else {
+      exit = 1;
+    }
+    if (exit === 1) {
+      console.warn("Unexpected error message: \"" + message + "\"");
+      throw e$3;
+    }
+    
+  } else {
+    var e$4 = Caml_js_exceptions.as_js_exn(e$2);
+    if (e$4 !== undefined) {
+      throw Caml_option.valFromOption(e$4);
+    }
+    console.error("Unexpected error");
+  }
+}
+
+var _collator = Intl__CollatorTest._collator;
+
+var collator = Intl__CollatorTest.collator;
+
+var resolvedOptions = Intl__DateTimeFormatTest.resolvedOptions;
+
+var timeZone = Intl__DateTimeFormatTest.timeZone;
+
+var _locale = Intl__LocaleTest._locale;
+
+var locale = Intl__LocaleTest.locale;
+
+var currencyFormatter = Intl__NumberFormatTest.currencyFormatter;
+
+var roundingFormatter = Intl__NumberFormatTest.roundingFormatter;
+
+var groupingFormatter1 = Intl__NumberFormatTest.groupingFormatter1;
+
+var groupingFormatter2 = Intl__NumberFormatTest.groupingFormatter2;
+
+var sigFormatter = Intl__NumberFormatTest.sigFormatter;
+
+var options = Intl__NumberFormatTest.options;
+
+var _formatter = Intl__SegmenterTest._formatter;
+
+var formatter = Intl__SegmenterTest.formatter;
+
+var segments = Intl__SegmenterTest.segments;
+
+export {
+  _collator ,
+  collator ,
+  resolvedOptions ,
+  timeZone ,
+  _locale ,
+  locale ,
+  currencyFormatter ,
+  roundingFormatter ,
+  groupingFormatter1 ,
+  groupingFormatter2 ,
+  sigFormatter ,
+  options ,
+  _formatter ,
+  formatter ,
+  segments ,
+}
+/*  Not a pure module */
diff --git a/test/intl/Intl__CollatorTest.mjs b/test/intl/Intl__CollatorTest.mjs
new file mode 100644
index 00000000..3945f3a8
--- /dev/null
+++ b/test/intl/Intl__CollatorTest.mjs
@@ -0,0 +1,46 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+
+console.log("---");
+
+console.log("Intl.Collator");
+
+new Intl.Collator();
+
+new Intl.Collator("en-US");
+
+var _collator = new Intl.Collator([
+      "en-US",
+      "en-GB"
+    ]);
+
+var collator = new Intl.Collator("en-US", {
+      sensitivity: "base",
+      ignorePunctuation: true,
+      numeric: true,
+      caseFirst: "upper"
+    });
+
+Intl.Collator.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ]);
+
+Intl.Collator.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ], {
+      localeMatcher: "lookup"
+    });
+
+console.log(collator.resolvedOptions());
+
+console.log(collator.compare("hi", "hï"));
+
+console.log(Intl.Collator.supportedLocalesOf(["hi"]));
+
+export {
+  _collator ,
+  collator ,
+}
+/*  Not a pure module */
diff --git a/test/intl/Intl__DateTimeFormatTest.mjs b/test/intl/Intl__DateTimeFormatTest.mjs
new file mode 100644
index 00000000..140ae17c
--- /dev/null
+++ b/test/intl/Intl__DateTimeFormatTest.mjs
@@ -0,0 +1,90 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+import * as Caml_obj from "rescript/lib/es6/caml_obj.js";
+
+console.log("---");
+
+console.log("Intl.DateTimeFormat");
+
+Intl.DateTimeFormat.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ]);
+
+Intl.DateTimeFormat.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ], {
+      localeMatcher: "lookup"
+    });
+
+var formatter = new Intl.DateTimeFormat(undefined, {
+      dateStyle: "full",
+      timeStyle: "full"
+    });
+
+console.log(formatter.format(new Date(Date.now())));
+
+console.log(formatter.formatRange(new Date(2023, 1, 1), new Date(2023, 12, 31)));
+
+var options = {
+  timeZone: "UTC",
+  hour12: false,
+  hourCycle: "h24",
+  weekday: "narrow",
+  era: "narrow",
+  year: "2-digit",
+  month: "2-digit",
+  day: "2-digit",
+  hour: "2-digit",
+  minute: "2-digit",
+  second: "2-digit",
+  fractionalSecondDigits: 3,
+  timeZoneName: "longGeneric"
+};
+
+var formatter$1 = new Intl.DateTimeFormat(undefined, options);
+
+console.log(formatter$1.format(new Date(Date.now())));
+
+var newrecord = Caml_obj.obj_dup(options);
+
+var formatter$2 = new Intl.DateTimeFormat(undefined, (newrecord.timeZoneName = "long", newrecord));
+
+console.log(formatter$2.format(new Date(Date.now())));
+
+var newrecord$1 = Caml_obj.obj_dup(options);
+
+var formatter$3 = new Intl.DateTimeFormat(undefined, (newrecord$1.timeZoneName = "longOffset", newrecord$1));
+
+console.log(formatter$3.format(new Date(Date.now())));
+
+var newrecord$2 = Caml_obj.obj_dup(options);
+
+var formatter$4 = new Intl.DateTimeFormat(undefined, (newrecord$2.timeZoneName = "short", newrecord$2));
+
+console.log(formatter$4.format(new Date(Date.now())));
+
+var newrecord$3 = Caml_obj.obj_dup(options);
+
+var formatter$5 = new Intl.DateTimeFormat(undefined, (newrecord$3.timeZoneName = "shortGeneric", newrecord$3));
+
+console.log(formatter$5.format(new Date(Date.now())));
+
+var newrecord$4 = Caml_obj.obj_dup(options);
+
+var formatter$6 = new Intl.DateTimeFormat(undefined, (newrecord$4.timeZoneName = "shortOffset", newrecord$4));
+
+console.log(formatter$6.format(new Date(Date.now())));
+
+var resolvedOptions = new Intl.DateTimeFormat().resolvedOptions();
+
+var timeZone = resolvedOptions.timeZone;
+
+export {
+  options ,
+  formatter$6 as formatter,
+  resolvedOptions ,
+  timeZone ,
+}
+/*  Not a pure module */
diff --git a/test/intl/Intl__ListFormatTest.mjs b/test/intl/Intl__ListFormatTest.mjs
new file mode 100644
index 00000000..592a5eb7
--- /dev/null
+++ b/test/intl/Intl__ListFormatTest.mjs
@@ -0,0 +1,65 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+
+console.log("---");
+
+console.log("Intl.ListFormat");
+
+new Intl.ListFormat();
+
+new Intl.ListFormat("en-US");
+
+new Intl.ListFormat([
+      "en-US",
+      "en-GB"
+    ]);
+
+new Intl.ListFormat("en-US", {
+      type: "conjunction",
+      style: "long"
+    });
+
+var _formatter = new Intl.ListFormat([
+      "en-US",
+      "en-GB"
+    ], {
+      type: "conjunction",
+      style: "long"
+    });
+
+Intl.ListFormat.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ]);
+
+Intl.ListFormat.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ], {
+      localeMatcher: "lookup"
+    });
+
+var formatter = new Intl.ListFormat(undefined, {
+      type: "conjunction",
+      style: "long"
+    });
+
+console.log(formatter.resolvedOptions());
+
+console.log(formatter.format([
+          "one",
+          "two",
+          "three"
+        ]));
+
+console.log(formatter.formatToParts([
+          "one",
+          "two",
+          "three"
+        ]));
+
+export {
+  _formatter ,
+  formatter ,
+}
+/*  Not a pure module */
diff --git a/test/intl/Intl__LocaleTest.mjs b/test/intl/Intl__LocaleTest.mjs
new file mode 100644
index 00000000..a8349a84
--- /dev/null
+++ b/test/intl/Intl__LocaleTest.mjs
@@ -0,0 +1,46 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+
+console.log("---");
+
+console.log("Intl.Locale");
+
+var _locale = new Intl.Locale("en-US");
+
+var locale = new Intl.Locale("en-US", {
+      calendar: "hebrew",
+      collation: "compat",
+      hourCycle: "h24",
+      caseFirst: "upper",
+      numeric: true
+    });
+
+console.log(locale.baseName);
+
+console.log(locale.calendar);
+
+console.log(locale.caseFirst);
+
+console.log(locale.collation);
+
+console.log(locale.hourCycle);
+
+console.log(locale.language);
+
+console.log(locale.numberingSystem);
+
+console.log(locale.numeric);
+
+console.log(locale.region);
+
+console.log(locale.script);
+
+console.log(locale.maximize());
+
+console.log(locale.minimize());
+
+export {
+  _locale ,
+  locale ,
+}
+/*  Not a pure module */
diff --git a/test/intl/Intl__NumberFormatTest.mjs b/test/intl/Intl__NumberFormatTest.mjs
new file mode 100644
index 00000000..d19804e9
--- /dev/null
+++ b/test/intl/Intl__NumberFormatTest.mjs
@@ -0,0 +1,58 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+import * as Caml_option from "rescript/lib/es6/caml_option.js";
+import * as Core__Intl__NumberFormat__Grouping from "../../src/intl/Core__Intl__NumberFormat__Grouping.mjs";
+
+console.log("---");
+
+console.log("Intl.NumberFormat");
+
+var currencyFormatter = new Intl.NumberFormat("fr-FR", {
+      currency: "EUR",
+      style: "currency"
+    });
+
+console.log(Intl.NumberFormat.supportedLocalesOf([
+          "fr-FR",
+          "en-US"
+        ]));
+
+console.log(currencyFormatter.format(123.23));
+
+var roundingFormatter = new Intl.NumberFormat(undefined, {
+      roundingIncrement: 500,
+      minimumFractionDigits: 2,
+      maximumFractionDigits: 2
+    });
+
+var groupingFormatter1 = new Intl.NumberFormat(undefined, {
+      useGrouping: Caml_option.some(true)
+    });
+
+var groupingFormatter2 = new Intl.NumberFormat(undefined, {
+      useGrouping: "auto"
+    });
+
+var sigFormatter = new Intl.NumberFormat(undefined, {
+      minimumIntegerDigits: 1,
+      minimumFractionDigits: 1,
+      maximumFractionDigits: 1,
+      minimumSignificantDigits: 1,
+      maximumSignificantDigits: 1
+    });
+
+var options = sigFormatter.resolvedOptions();
+
+console.log(options);
+
+console.log(Core__Intl__NumberFormat__Grouping.parseJsValue(options.useGrouping));
+
+export {
+  currencyFormatter ,
+  roundingFormatter ,
+  groupingFormatter1 ,
+  groupingFormatter2 ,
+  sigFormatter ,
+  options ,
+}
+/*  Not a pure module */
diff --git a/test/intl/Intl__PluralRulesTest.mjs b/test/intl/Intl__PluralRulesTest.mjs
new file mode 100644
index 00000000..b4fe8030
--- /dev/null
+++ b/test/intl/Intl__PluralRulesTest.mjs
@@ -0,0 +1,45 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+
+console.log("---");
+
+console.log("Intl.PluralRules");
+
+new Intl.PluralRules();
+
+new Intl.PluralRules("en-US");
+
+new Intl.PluralRules([
+      "en-US",
+      "en-GB"
+    ]);
+
+new Intl.PluralRules(undefined, {
+      type: "ordinal",
+      minimumSignificantDigits: 3,
+      maximumSignificantDigits: 5
+    });
+
+var _formatter = new Intl.PluralRules("en-US", {
+      type: "ordinal",
+      minimumSignificantDigits: 3,
+      maximumSignificantDigits: 5
+    });
+
+var formatter = new Intl.PluralRules(["en-US"], {
+      type: "ordinal",
+      minimumSignificantDigits: 3,
+      maximumSignificantDigits: 5
+    });
+
+console.log(formatter.resolvedOptions());
+
+console.log(formatter.select(2.0));
+
+console.log(formatter.select(2));
+
+export {
+  _formatter ,
+  formatter ,
+}
+/*  Not a pure module */
diff --git a/test/intl/Intl__RelativeTimeFormatTest.mjs b/test/intl/Intl__RelativeTimeFormatTest.mjs
new file mode 100644
index 00000000..062d89be
--- /dev/null
+++ b/test/intl/Intl__RelativeTimeFormatTest.mjs
@@ -0,0 +1,54 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+
+console.log("---");
+
+console.log("Intl.RelativeTimeFormat");
+
+Intl.RelativeTimeFormat.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ]);
+
+Intl.RelativeTimeFormat.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ], {
+      localeMatcher: "lookup"
+    });
+
+new Intl.RelativeTimeFormat();
+
+new Intl.RelativeTimeFormat("en-US");
+
+new Intl.RelativeTimeFormat([
+      "en-US",
+      "en-GB"
+    ]);
+
+new Intl.RelativeTimeFormat(undefined, {
+      numeric: "always",
+      style: "narrow"
+    });
+
+var _formatter = new Intl.RelativeTimeFormat("en-US", {
+      numeric: "always",
+      style: "narrow"
+    });
+
+var formatter = new Intl.RelativeTimeFormat(["en-US"], {
+      numeric: "always",
+      style: "narrow"
+    });
+
+console.log(formatter.resolvedOptions());
+
+console.log(formatter.format(3, "hour"));
+
+console.log(formatter.formatToParts(3, "hour"));
+
+export {
+  _formatter ,
+  formatter ,
+}
+/*  Not a pure module */
diff --git a/test/intl/Intl__SegmenterTest.mjs b/test/intl/Intl__SegmenterTest.mjs
new file mode 100644
index 00000000..757c7c4d
--- /dev/null
+++ b/test/intl/Intl__SegmenterTest.mjs
@@ -0,0 +1,56 @@
+// Generated by ReScript, PLEASE EDIT WITH CARE
+
+
+console.log("---");
+
+console.log("Intl.Segmenter");
+
+Intl.Segmenter.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ]);
+
+Intl.Segmenter.supportedLocalesOf([
+      "en-US",
+      "en-GB"
+    ], {
+      localeMatcher: "lookup"
+    });
+
+new Intl.Segmenter();
+
+new Intl.Segmenter("en-US");
+
+new Intl.Segmenter([
+      "en-US",
+      "en-GB"
+    ]);
+
+new Intl.Segmenter(undefined, {
+      granularity: "word"
+    });
+
+var _formatter = new Intl.Segmenter("en-US", {
+      granularity: "word"
+    });
+
+var formatter = new Intl.Segmenter(["en-US"], {
+      granularity: "word"
+    });
+
+console.log(formatter.resolvedOptions());
+
+var segments = formatter.segment("This is a sentence with several words");
+
+console.log(segments);
+
+console.log(segments.containing());
+
+console.log(segments.containing(1));
+
+export {
+  _formatter ,
+  formatter ,
+  segments ,
+}
+/*  Not a pure module */