+ "string",
+ new ArrayBuffer(),
+ new SharedArrayBuffer(),
+ ].forEach((value) =>
+ assertStrictEquals(isArrayBufferView(value), false)
+ );
+ });
+});
+
+describe("isBase16", () => {
+ it("[[Call]] returns true for base64 strings", () => {
+ for (const { base16 } of data.values()) {
+ assertStrictEquals(isBase16(base16), true);
+ assertStrictEquals(isBase16(base16.toLowerCase()), true);
+ }
+ });
+
+ it("[[Call]] returns false for others", () => {
+ [
+ undefined,
+ null,
+ true,
+ Symbol(),
+ 27,
+ 98n,
+ {},
+ [],
+ () => {},
+ new Proxy({}, {}),
+ "abc_",
+ "a",
+ "abc",
+ "abcg",
+ ].forEach((value) => assertStrictEquals(isBase16(value), false));
+ });
+});
+
+describe("isBase32", () => {
+ it("[[Call]] returns true for base32 strings", () => {
+ for (const { base32 } of data.values()) {
+ assertStrictEquals(isBase32(base32), true);
+ assertStrictEquals(isBase32(base32.toLowerCase()), true);
+ }
+ });
+
+ it("[[Call]] returns false for others", () => {
+ [
+ undefined,
+ null,
+ true,
+ Symbol(),
+ 27,
+ 98n,
+ {},
+ [],
+ () => {},
+ new Proxy({}, {}),
+ "ABC1",
+ "A=======",
+ "ABCDEFGHI",
+ ].forEach((value) => assertStrictEquals(isBase32(value), false));
+ });
+});
+
+describe("isBase64", () => {
+ it("[[Call]] returns true for base64 strings", () => {
+ for (const { base64 } of data.values()) {
+ assertStrictEquals(isBase64(base64), true);
+ }
+ });
+
+ it("[[Call]] returns false for others", () => {
+ [
+ undefined,
+ null,
+ true,
+ Symbol(),
+ 27,
+ 98n,
+ {},
+ [],
+ () => {},
+ new Proxy({}, {}),
+ "abc_",
+ "a",
+ "abc==",
+ ].forEach((value) => assertStrictEquals(isBase64(value), false));
+ });
+});
+
+describe("isFilenameSafeBase64", () => {
+ it("[[Call]] returns true for filename‐safe base64 strings", () => {
+ for (const { base64 } of data.values()) {
+ assertStrictEquals(
+ isFilenameSafeBase64(
+ base64.replace("+", "-").replace("/", "_"),
+ ),
+ true,
+ );
+ }
+ });
+
+ it("[[Call]] returns false for others", () => {
+ [
+ undefined,
+ null,
+ true,
+ Symbol(),
+ 27,
+ 98n,
+ {},
+ [],
+ () => {},
+ new Proxy({}, {}),
+ "abc/",
+ "a",
+ "abc==",
+ ].forEach((value) =>
+ assertStrictEquals(isFilenameSafeBase64(value), false)
+ );
+ });
+});
+
+describe("isSharedArrayBuffer", () => {
+ it("[[Call]] returns true for shared array buffers", () => {
+ assertStrictEquals(
+ isSharedArrayBuffer(new SharedArrayBuffer()),
+ true,
+ );
+ });
+
+ it("[[Call]] returns false for others", () => {
+ [
+ undefined,
+ null,
+ true,
+ Symbol(),
+ 27,
+ 98n,
+ {},
+ [],
+ () => {},
+ new Proxy({}, {}),
+ "string",
+ new ArrayBuffer(),
+ new DataView(new ArrayBuffer()),
+ new Uint8Array(),
+ ].forEach((value) =>
+ assertStrictEquals(isSharedArrayBuffer(value), false)
+ );
+ });
+});
+
+describe("isTypedArray", () => {
+ it("[[Call]] returns true for typed arrays", () => {
+ assertStrictEquals(
+ isTypedArray(new Uint8Array()),
+ true,
+ );
+ assertStrictEquals(
+ isTypedArray(new BigInt64Array()),
+ true,
+ );
+ });
+
+ it("[[Call]] returns false for others", () => {
+ [
+ undefined,
+ null,
+ true,
+ Symbol(),
+ 27,
+ 98n,
+ {},
+ [],
+ () => {},
+ new Proxy({}, {}),
+ "string",
+ new ArrayBuffer(),
+ new SharedArrayBuffer(),
+ new DataView(new ArrayBuffer()),
+ ].forEach((value) =>
+ assertStrictEquals(isTypedArray(value), false)
+ );
+ });
+});
+
+describe("isWRMGBase32", () => {
+ it("[[Call]] returns true for W·R·M·G base32 strings", () => {
+ for (const { wrmg } of data.values()) {
+ assertStrictEquals(isWRMGBase32(wrmg), true);
+ assertStrictEquals(isWRMGBase32(wrmg.toLowerCase()), true);
+ assertStrictEquals(isWRMGBase32(`--${wrmg}--`), true);
+ assertStrictEquals(
+ isWRMGBase32(wrmg.replaceAll(/1/gu, "I")),
+ true,
+ );
+ assertStrictEquals(
+ isWRMGBase32(wrmg.replaceAll(/1/gu, "L")),
+ true,
+ );
+ assertStrictEquals(
+ isWRMGBase32(wrmg.replaceAll(/0/gu, "O")),
+ true,
+ );
+ assertStrictEquals(
+ isWRMGBase32(wrmg.replaceAll(/1/gu, "i")),
+ true,
+ );
+ assertStrictEquals(
+ isWRMGBase32(wrmg.replaceAll(/1/gu, "l")),
+ true,
+ );
+ assertStrictEquals(
+ isWRMGBase32(wrmg.replaceAll(/0/gu, "o")),
+ true,
+ );
+ assertStrictEquals(
+ isWRMGBase32(wrmg.replaceAll(/./gu, ($) => {
+ const rand = Math.random();
+ return rand < 0.25
+ ? $
+ : rand < 0.5
+ ? `-${$}`
+ : rand < 0.75
+ ? `${$}-`
+ : `-${$}-`;
+ })),
+ true,
+ );
+ }
+ });
+
+ it("[[Call]] returns false for others", () => {
+ [
+ undefined,
+ null,
+ true,
+ Symbol(),
+ 27,
+ 98n,
+ {},
+ [],
+ () => {},
+ new Proxy({}, {}),
+ "ABCU",
+ "A",
+ "ABCDEFGH1",
+ ].forEach((value) =>
+ assertStrictEquals(isWRMGBase32(value), false)
+ );
+ });
+});
+
+describe("set8BitIntegralItem", () => {
+ it("[[Call]] sets the item", () => {
+ const buffer = new ArrayBuffer(3);
+ set8BitIntegralItem(buffer, 1, -1n);
+ set8BitIntegralItem(buffer, 2, (1 << 8) - 1);
+ assertEquals(
+ new Int8Array(buffer),
+ Int8Array.from([0, -1, -1]),
+ );
+ });
+});
+
+describe("set16BitIntegralItem", () => {
+ it("[[Call]] sets the item", () => {
+ const buffer = new ArrayBuffer(6);
+ set16BitIntegralItem(buffer, 2, -1n);
+ set16BitIntegralItem(buffer, 4, (1 << 16) - 1);
+ assertEquals(
+ new Int8Array(buffer),
+ Int8Array.from([0, 0, -1, -1, -1, -1]),
+ );
+ });
+});
+
+describe("set32BitFloatingPointItem", () => {
+ it("[[Call]] sets the item", () => {
+ const buffer = new ArrayBuffer(12);
+ const expected = new ArrayBuffer(12);
+ const view = new DataView(expected);
+ view.setFloat32(0, NaN);
+ set32BitFloatingPointItem(buffer, 0, NaN);
+ view.setFloat32(4, -Infinity);
+ set32BitFloatingPointItem(buffer, 4, -Infinity);
+ view.setFloat32(8, -0);
+ set32BitFloatingPointItem(buffer, 8, -0);
+ assertEquals(
+ new Uint8Array(buffer),
+ new Uint8Array(expected),
+ );
+ });
+});
+
+describe("set32BitIntegralItem", () => {
+ it("[[Call]] sets the item", () => {
+ const buffer = new ArrayBuffer(12);
+ set32BitIntegralItem(buffer, 4, -1n);
+ set32BitIntegralItem(buffer, 8, -1 >>> 0);
+ assertEquals(
+ new Int8Array(buffer),
+ Int8Array.from([0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1]),
+ );
+ });
+});
+
+describe("set64BitFloatingPointItem", () => {
+ it("[[Call]] sets the item", () => {
+ const buffer = new ArrayBuffer(24);
+ const expected = new ArrayBuffer(24);
+ const view = new DataView(expected);
+ view.setFloat64(0, NaN);
+ set64BitFloatingPointItem(buffer, 0, NaN);
+ view.setFloat64(4, -Infinity);
+ set64BitFloatingPointItem(buffer, 4, -Infinity);
+ view.setFloat64(8, -0);
+ set64BitFloatingPointItem(buffer, 8, -0);
+ assertEquals(
+ new Uint8Array(buffer),
+ new Uint8Array(expected),
+ );
+ });
+});
+
+describe("set64BitIntegralItem", () => {
+ it("[[Call]] sets the item", () => {
+ const buffer = new ArrayBuffer(12);
+ set64BitIntegralItem(buffer, 4, -1n);
+ assertEquals(
+ new Int8Array(buffer),
+ Int8Array.from([0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1]),
+ );
+ });
+});
+
+describe("toArrayBuffer", () => {
+ it("[[Call]] returns the argument for array buffers", () => {
+ const buffer = new ArrayBuffer();
+ assertStrictEquals(toArrayBuffer(buffer), buffer);
+ });
+
+ it("[[Call]] returns the buffer for data views", () => {
+ const src = Uint8Array.from([2, 3, 1]);
+ const buffer = toArrayBuffer(new DataView(src.buffer));
+ assert(buffer instanceof ArrayBuffer);
+ assertEquals(new Uint8Array(buffer), src);
+ });
+
+ it("[[Call]] returns the buffer for typed arrays", () => {
+ const src = Uint8Array.from([2, 3, 1]);
+ const buffer = toArrayBuffer(src);
+ assert(buffer instanceof ArrayBuffer);
+ assertEquals(new Uint8Array(buffer), src);
+ });
+
+ it("[[Call]] throws for others", () => {
+ [
+ undefined,
+ null,
+ true,
+ Symbol(),
+ 27,
+ 98n,
+ {},
+ [],
+ () => {},
+ new Proxy({}, {}),
+ "string",
+ ].forEach((value) =>
+ assertThrows(() => {
+ toArrayBuffer(value);
+ })
+ );
+ });
+});
+
+describe("wrmgBase32Binary", () => {
+ it("[[Call]] returns the correct data", () => {
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("")),
+ new Uint8Array([]),
+ "<empty>",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("01H00R80EC06A01P00T0")),
+ Uint8Array.from(
+ "\u{0}b\u{0}a\u{0}s\u{0}e\u{0}6\u{0}4",
+ ($) => $.charCodeAt(0),
+ ),
+ "01H00R80EC06A01P00T0",
+ );
+ assertEquals(
+ new Uint16Array(wrmgBase32Binary("8ZT0")),
+ new Uint16Array([62535]),
+ "8ZT0",
+ );
+ assertEquals(
+ new Uint8ClampedArray(wrmgBase32Binary("9D4M4J8")),
+ new Uint8ClampedArray([75, 73, 66, 73]),
+ "9D4M4J8",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("C9GQ6S9P6G")),
+ new Uint8Array([98, 97, 115, 101, 54, 52]),
+ "C9GQ6S9P6G",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("2KXSR0YSFR")),
+ new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9, 0x7E]),
+ "2KXSR0YSFR",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("2KXSR0YS")),
+ new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9]),
+ "2KXSR0YS",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("2KXSR0R")),
+ new Uint8Array([0x14, 0xFB, 0x9C, 0x03]),
+ "2KXSR0R",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("50")),
+ new Uint8Array([0x28]),
+ "50",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("TR")),
+ new Uint8Array([0xD6]),
+ "TR",
+ );
+ assertEquals(
+ new Uint16Array(wrmgBase32Binary("TVW0")),
+ new Uint16Array([0xF8D6]),
+ "TVW0",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("TVW00")),
+ new Uint8Array([0xD6, 0xF8, 0x00]),
+ "TVW00",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("TVW10")),
+ new Uint8Array([0xD6, 0xF8, 0x10]),
+ "TVW10",
+ );
+ assertEquals(
+ new Uint32Array(wrmgBase32Binary("TVW1230")),
+ new Uint32Array([0x0C11F8D6]),
+ "TVW1230",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("TVW12340")),
+ new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+ "TVW12340",
+ );
+ assertEquals(
+ new Uint16Array(wrmgBase32Binary("TVW1234560")),
+ new Uint16Array([0xF8D6, 0x0C11, 0x3085]),
+ "TVW1234560",
+ );
+ });
+
+ it("[[Call]] is case‐insensitive", () => {
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("tVw12340")),
+ new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+ "tVw12340",
+ );
+ });
+
+ it("[[Call]] casts I, L & O", () => {
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("TVWI234O")),
+ new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+ "TVWI234O",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("TVWi234o")),
+ new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+ "TVWi234o",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("TVWL234O")),
+ new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+ "TVWL234O",
+ );
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("TVWl234o")),
+ new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+ "TVWl234o",
+ );
+ });
+
+ it("[[Call]] ignores hyphens", () => {
+ assertEquals(
+ new Uint8Array(wrmgBase32Binary("--TVW---123-40-----")),
+ new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+ "--TVW---123-40-----",
+ );
+ });
+
+ it("[[Call]] throws when provided with an invalid character", () => {
+ assertThrows(() => wrmgBase32Binary("ABCu"));
+ assertThrows(() => wrmgBase32Binary("ABCU"));
+ assertThrows(() => wrmgBase32Binary("ABC="));
+ });
+
+ it("[[Call]] throws when provided with a length with a remainder of 1, 3 ∣ 6 when divided by 8", () => {
+ assertThrows(() => base32Binary("TVW123400"));
+ assertThrows(() => base32Binary("TVW123400======="));
+ assertThrows(() => base32Binary("M78"));
+ assertThrows(() => base32Binary("M78M93"));
+ });
+
+ it("[[Call]] throws when provided with a length with a remainder of 1 when divided by 4", () => {
+ assertThrows(() => wrmgBase32Binary("234BCDEAA"));
+ assertThrows(() => wrmgBase32Binary("2-34-B--CD-EA-A-"));
+ });
+});
+
+describe("wrmgBase32String", () => {
+ it("[[Call]] returns the correct string", () => {
+ for (const [source, { wrmg }] of data) {
+ assertStrictEquals(wrmgBase32String(source), wrmg);
+ }