LibJS: Implement stringification Temporal.PlainYearMonth prototypes

Author: https://github.com/trflynn89
Commit: 2da526423f
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2496

Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.js

@@ -51,10 +51,10 @@ describe("normal behavior", () => {
         expect(Object.getPrototypeOf(plainYearMonth)).toBe(Temporal.PlainYearMonth.prototype);
     });
 
-    // FIXME: Re-implement this test with Temporal.PlainYearMonth.prototype.toString({ calendarName: "always" }).
-    // test("default reference day is 1", () => {
-    //     const plainYearMonth = new Temporal.PlainYearMonth(2021, 7);
-    //     const fields = plainYearMonth.getISOFields();
-    //     expect(fields.isoDay).toBe(1);
-    // });
+    test("default reference day is 1", () => {
+        const plainYearMonth = new Temporal.PlainYearMonth(2021, 7);
+        const fields = plainYearMonth.toString({ calendarName: "always" });
+        const day = fields.split("-")[2].split("[")[0];
+        expect(day).toBe("01");
+    });
 });

Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toJSON.js

@@ -0,0 +1,23 @@
+describe("correct behavior", () => {
+    test("length is 0", () => {
+        expect(Temporal.PlainYearMonth.prototype.toJSON).toHaveLength(0);
+    });
+
+    test("basic functionality", () => {
+        let plainYearMonth;
+
+        plainYearMonth = new Temporal.PlainYearMonth(2021, 7);
+        expect(plainYearMonth.toJSON()).toBe("2021-07");
+
+        plainYearMonth = new Temporal.PlainYearMonth(2021, 7, "gregory", 6);
+        expect(plainYearMonth.toJSON()).toBe("2021-07-06[u-ca=gregory]");
+    });
+});
+
+describe("errors", () => {
+    test("this value must be a Temporal.PlainYearMonth object", () => {
+        expect(() => {
+            Temporal.PlainYearMonth.prototype.toJSON.call("foo");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
+    });
+});

Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toLocaleString.js

@@ -0,0 +1,23 @@
+describe("correct behavior", () => {
+    test("length is 0", () => {
+        expect(Temporal.PlainYearMonth.prototype.toLocaleString).toHaveLength(0);
+    });
+
+    test("basic functionality", () => {
+        let plainYearMonth;
+
+        plainYearMonth = new Temporal.PlainYearMonth(2021, 7);
+        expect(plainYearMonth.toLocaleString()).toBe("2021-07");
+
+        plainYearMonth = new Temporal.PlainYearMonth(2021, 7, "gregory", 6);
+        expect(plainYearMonth.toLocaleString()).toBe("2021-07-06[u-ca=gregory]");
+    });
+});
+
+describe("errors", () => {
+    test("this value must be a Temporal.PlainYearMonth object", () => {
+        expect(() => {
+            Temporal.PlainYearMonth.prototype.toLocaleString.call("foo");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
+    });
+});

Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toString.js

@@ -0,0 +1,64 @@
+describe("correct behavior", () => {
+    test("length is 0", () => {
+        expect(Temporal.PlainYearMonth.prototype.toString).toHaveLength(0);
+    });
+
+    test("basic functionality", () => {
+        let plainYearMonth;
+
+        plainYearMonth = new Temporal.PlainYearMonth(2021, 7);
+        expect(plainYearMonth.toString()).toBe("2021-07");
+        expect(plainYearMonth.toString({ calendarName: "auto" })).toBe("2021-07");
+        expect(plainYearMonth.toString({ calendarName: "always" })).toBe(
+            "2021-07-01[u-ca=iso8601]"
+        );
+        expect(plainYearMonth.toString({ calendarName: "never" })).toBe("2021-07");
+        expect(plainYearMonth.toString({ calendarName: "critical" })).toBe(
+            "2021-07-01[!u-ca=iso8601]"
+        );
+
+        plainYearMonth = new Temporal.PlainYearMonth(2021, 7, "gregory", 6);
+        expect(plainYearMonth.toString()).toBe("2021-07-06[u-ca=gregory]");
+        expect(plainYearMonth.toString({ calendarName: "auto" })).toBe("2021-07-06[u-ca=gregory]");
+        expect(plainYearMonth.toString({ calendarName: "always" })).toBe(
+            "2021-07-06[u-ca=gregory]"
+        );
+        expect(plainYearMonth.toString({ calendarName: "never" })).toBe("2021-07-06");
+        expect(plainYearMonth.toString({ calendarName: "critical" })).toBe(
+            "2021-07-06[!u-ca=gregory]"
+        );
+
+        plainYearMonth = new Temporal.PlainYearMonth(0, 1);
+        expect(plainYearMonth.toString()).toBe("0000-01");
+
+        plainYearMonth = new Temporal.PlainYearMonth(999, 1);
+        expect(plainYearMonth.toString()).toBe("0999-01");
+
+        plainYearMonth = new Temporal.PlainYearMonth(9999, 1);
+        expect(plainYearMonth.toString()).toBe("9999-01");
+
+        plainYearMonth = new Temporal.PlainYearMonth(12345, 1);
+        expect(plainYearMonth.toString()).toBe("+012345-01");
+
+        plainYearMonth = new Temporal.PlainYearMonth(123456, 1);
+        expect(plainYearMonth.toString()).toBe("+123456-01");
+
+        plainYearMonth = new Temporal.PlainYearMonth(-12345, 1);
+        expect(plainYearMonth.toString()).toBe("-012345-01");
+    });
+});
+
+describe("errors", () => {
+    test("this value must be a Temporal.PlainYearMonth object", () => {
+        expect(() => {
+            Temporal.PlainYearMonth.prototype.toString.call("foo");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
+    });
+
+    test("calendarName option must be one of 'auto', 'always', 'never', 'critical'", () => {
+        const plainYearMonth = new Temporal.PlainYearMonth(2021, 7);
+        expect(() => {
+            plainYearMonth.toString({ calendarName: "foo" });
+        }).toThrowWithMessage(RangeError, "foo is not a valid value for option calendarName");
+    });
+});