Make base32 handling less forgiving

[Pisces] / binary.test.js

diff --git a/binary.test.js b/binary.test.js
index 161f8db2736ced1ac332c0f5ee3d8d105fa42a70..82fa4e030003ba18ca699eae9d742e2183e6e692 100755 (executable)
--- a/binary.test.js
+++ b/binary.test.js
@@ -1,7 +1,7 @@
 // ♓🌟 Piscēs ∷ binary.test.js
 // ====================================================================
 //
 // ♓🌟 Piscēs ∷ binary.test.js
 // ====================================================================
 //

-// Copyright © 2020–2022 Lady [@ Lady’s Computer].
+// Copyright © 2020–2023 Lady [@ Lady’s Computer].

 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this


@@ -16,50 +16,447 @@ import {
   it,
 } from "./dev-deps.js";
 import {
   it,
 } from "./dev-deps.js";
 import {

+  base16Binary,
+  base16String,
+  base32Binary,
+  base32String,

   base64Binary,
   base64String,
   filenameSafeBase64Binary,
   filenameSafeBase64String,
   base64Binary,
   base64String,
   filenameSafeBase64Binary,
   filenameSafeBase64String,

+  isBase16,
+  isBase32,

   isBase64,
   isFilenameSafeBase64,
   isBase64,
   isFilenameSafeBase64,

+  isWRMGBase32,
+  wrmgBase32Binary,
+  wrmgBase32String,

 } from "./binary.js";
 
 } from "./binary.js";
 

-const base64s = {
-  "AGIAYQBzAGUANgA0": "base64",
-  "R/Q=": new Uint16Array([62535]),
-  "S0lCSQ==": new Uint8ClampedArray([75, 73, 66, 73]).buffer,
-  YmFzZTY0: new DataView(
-    new Uint8Array([98, 97, 115, 101, 54, 52]).buffer,
-  ),
-};
+// These tests assume a LITTLE‐ENDIAN environment.
+const data = new Map([
+  ["", {
+    base16: "",
+    base32: "",
+    base64: "",
+    wrmg: "",
+  }],
+  ["base64", {
+    base16: "006200610073006500360034",
+    base32: "ABRAAYIAOMAGKABWAA2A====",
+    base64: "AGIAYQBzAGUANgA0",
+    wrmg: "01H00R80EC06A01P00T0",
+  }],
+  [new Uint16Array([62535]), {
+    base16: "47F4",
+    base32: "I72A====",
+    base64: "R/Q=",
+    wrmg: "8ZT0",
+  }],
+  [new Uint8ClampedArray([75, 73, 66, 73]).buffer, {
+    base16: "4B494249",
+    base32: "JNEUESI=",
+    base64: "S0lCSQ==",
+    wrmg: "9D4M4J8",
+  }],
+  [new DataView(new Uint8Array([98, 97, 115, 101, 54, 52]).buffer), {
+    base16: "626173653634",
+    base32: "MJQXGZJWGQ======",
+    base64: "YmFzZTY0",
+    wrmg: "C9GQ6S9P6G",
+  }],
+
+  // The following three examples are from RFC 3548.
+  [new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9, 0x7E]), {
+    base16: "14FB9C03D97E",
+    base32: "CT5ZYA6ZPY======",
+    base64: "FPucA9l+",
+    wrmg: "2KXSR0YSFR",
+  }],
+  [new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9]), {
+    base16: "14FB9C03D9",
+    base32: "CT5ZYA6Z",
+    base64: "FPucA9k=",
+    wrmg: "2KXSR0YS",
+  }],
+  [new Uint8Array([0x14, 0xFB, 0x9C, 0x03]), {
+    base16: "14FB9C03",
+    base32: "CT5ZYAY=",
+    base64: "FPucAw==",
+    wrmg: "2KXSR0R",
+  }],
+
+  // The following examples are from the Ruby base32 gem.
+  [new Uint8Array([0x28]), {
+    base16: "28",
+    base32: "FA======",
+    base64: "KA==",
+    wrmg: "50",
+  }],
+  [new Uint8Array([0xD6]), {
+    base16: "D6",
+    base32: "2Y======",
+    base64: "1g==",
+    wrmg: "TR",
+  }],
+  [new Uint16Array([0xF8D6]), {
+    base16: "D6F8",
+    base32: "234A====",
+    base64: "1vg=",
+    wrmg: "TVW0",
+  }],
+  [new Uint8Array([0xD6, 0xF8, 0x00]), {
+    base16: "D6F800",
+    base32: "234AA===",
+    base64: "1vgA",
+    wrmg: "TVW00",
+  }],
+  [new Uint8Array([0xD6, 0xF8, 0x10]), {
+    base16: "D6F810",
+    base32: "234BA===",
+    base64: "1vgQ",
+    wrmg: "TVW10",
+  }],
+  [new Uint32Array([0x0C11F8D6]), {
+    base16: "D6F8110C",
+    base32: "234BCDA=",
+    base64: "1vgRDA==",
+    wrmg: "TVW1230",
+  }],
+  [new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]), {
+    base16: "D6F8110C80",
+    base32: "234BCDEA",
+    base64: "1vgRDIA=",
+    wrmg: "TVW12340",
+  }],
+  [new Uint16Array([0xF8D6, 0x0C11, 0x3085]), {
+    base16: "D6F8110C8530",
+    base32: "234BCDEFGA======",
+    base64: "1vgRDIUw",
+    wrmg: "TVW1234560",
+  }],
+]);
+
+describe("base16Binary", () => {
+  it("[[Call]] returns the correct data", () => {
+    assertEquals(
+      new Uint8Array(base16Binary("")),
+      new Uint8Array([]),
+      "<empty>",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("006200610073006500360034")),
+      Uint8Array.from(
+        "\u{0}b\u{0}a\u{0}s\u{0}e\u{0}6\u{0}4",
+        ($) => $.charCodeAt(0),
+      ),
+      "006200610073006500360034",
+    );
+    assertEquals(
+      new Uint16Array(base16Binary("47F4")),
+      new Uint16Array([62535]),
+      "47F4",
+    );
+    assertEquals(
+      new Uint8ClampedArray(base16Binary("4B494249")),
+      new Uint8ClampedArray([75, 73, 66, 73]),
+      "4B494249",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("626173653634")),
+      new Uint8Array([98, 97, 115, 101, 54, 52]),
+      "626173653634",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("14FB9C03D97E")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9, 0x7E]),
+      "14FB9C03D97E",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("14FB9C03D9")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9]),
+      "14FB9C03D9",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("14FB9C03")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03]),
+      "14FB9C03",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("28")),
+      new Uint8Array([0x28]),
+      "28",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("D6")),
+      new Uint8Array([0xD6]),
+      "D6",
+    );
+    assertEquals(
+      new Uint16Array(base16Binary("D6F8")),
+      new Uint16Array([0xF8D6]),
+      "D6F8",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("D6F800")),
+      new Uint8Array([0xD6, 0xF8, 0x00]),
+      "D6F800",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("D6F810")),
+      new Uint8Array([0xD6, 0xF8, 0x10]),
+      "D6F810",
+    );
+    assertEquals(
+      new Uint32Array(base16Binary("D6F8110C")),
+      new Uint32Array([0x0C11F8D6]),
+      "D6F8110C",
+    );
+    assertEquals(
+      new Uint8Array(base16Binary("D6F8110C80")),
+      new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+      "D6F8110C80",
+    );
+    assertEquals(
+      new Uint16Array(base16Binary("D6F8110C8530")),
+      new Uint16Array([0xF8D6, 0x0C11, 0x3085]),
+      "D6F8110C8530",
+    );
+  });
+
+  it("[[Call]] is case‐insensitive", () => {
+    assertEquals(
+      new Uint8Array(base16Binary("d6f8110C80")),
+      new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+      "d6f8110C80",
+    );
+  });
+
+  it("[[Call]] throws when provided with an invalid character", () => {
+    assertThrows(() => base16Binary("ABCG"));
+  });
+
+  it("[[Call]] throws when provided with a length with a remainder of 1 when divided by 2", () => {
+    assertThrows(() => base16Binary("A"));
+    assertThrows(() => base16Binary("ABC"));
+  });
+});
+
+describe("base16String", () => {
+  it("[[Call]] returns the correct string", () => {
+    for (const [source, { base16 }] of data) {
+      assertStrictEquals(base16String(source), base16);
+    }
+  });
+});
+
+describe("base32Binary", () => {
+  it("[[Call]] returns the correct data", () => {
+    assertEquals(
+      new Uint8Array(base32Binary("")),
+      new Uint8Array([]),
+      "<empty>",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("ABRAAYIAOMAGKABWAA2A====")),
+      Uint8Array.from(
+        "\u{0}b\u{0}a\u{0}s\u{0}e\u{0}6\u{0}4",
+        ($) => $.charCodeAt(0),
+      ),
+      "ABRAAYIAOMAGKABWAA2A====",
+    );
+    assertEquals(
+      new Uint16Array(base32Binary("I72A====")),
+      new Uint16Array([62535]),
+      "I72A====",
+    );
+    assertEquals(
+      new Uint8ClampedArray(base32Binary("JNEUESI=")),
+      new Uint8ClampedArray([75, 73, 66, 73]),
+      "JNEUESI=",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("MJQXGZJWGQ======")),
+      new Uint8Array([98, 97, 115, 101, 54, 52]),
+      "MJQXGZJWGQ======",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("CT5ZYA6ZPY======")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9, 0x7E]),
+      "CT5ZYA6ZPY======",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("CT5ZYA6Z")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9]),
+      "CT5ZYA6Z",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("CT5ZYAY=")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03]),
+      "CT5ZYAY=",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("FA======")),
+      new Uint8Array([0x28]),
+      "FA======",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("2Y======")),
+      new Uint8Array([0xD6]),
+      "2Y======",
+    );
+    assertEquals(
+      new Uint16Array(base32Binary("234A====")),
+      new Uint16Array([0xF8D6]),
+      "234A====",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("234AA===")),
+      new Uint8Array([0xD6, 0xF8, 0x00]),
+      "234AA===",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("234BA===")),
+      new Uint8Array([0xD6, 0xF8, 0x10]),
+      "234BA===",
+    );
+    assertEquals(
+      new Uint32Array(base32Binary("234BCDA=")),
+      new Uint32Array([0x0C11F8D6]),
+      "234BCDA=",
+    );
+    assertEquals(
+      new Uint8Array(base32Binary("234BCDEA")),
+      new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+      "234BCDEA",
+    );
+    assertEquals(
+      new Uint16Array(base32Binary("234BCDEFGA======")),
+      new Uint16Array([0xF8D6, 0x0C11, 0x3085]),
+      "234BCDEFGA======",
+    );
+  });
+
+  it("[[Call]] is case‐insensitive", () => {
+    assertEquals(
+      new Uint8Array(base32Binary("234bcdEA")),
+      new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+      "234bcdEA",
+    );
+  });
+
+  it("[[Call]] throws when provided with an invalid character", () => {
+    assertThrows(() => base32Binary("ABC0"));
+    assertThrows(() => base32Binary("ABC1"));
+    assertThrows(() => base32Binary("ABC8"));
+    assertThrows(() => base32Binary("ABC9"));
+  });
+
+  it("[[Call]] throws when provided with an invalid equals", () => {
+    assertThrows(() => base32Binary("CT3ZYAY=="));
+  });
+
+  it("[[Call]] throws when provided with a length with a remainder of 1, 3 ∣ 6 when divided by 8", () => {
+    assertThrows(() => base32Binary("234BCDEAA"));
+    assertThrows(() => base32Binary("234BCDEAA======="));
+    assertThrows(() => base32Binary("UHI"));
+    assertThrows(() => base32Binary("UHIUJD"));
+  });
+});
+
+describe("base32String", () => {
+  it("[[Call]] returns the correct string", () => {
+    for (const [source, { base32 }] of data) {
+      assertStrictEquals(base32String(source), base32);
+    }
+  });
+});

 
 describe("base64Binary", () => {
   it("[[Call]] returns the correct data", () => {
     assertEquals(
 
 describe("base64Binary", () => {
   it("[[Call]] returns the correct data", () => {
     assertEquals(

-      base64Binary("AGIAYQBzAGUANgA0"),
-      new Uint8Array(
-        Array.prototype.map.call(
-          "\u{0}b\u{0}a\u{0}s\u{0}e\u{0}6\u{0}4",
-          ($) => $.charCodeAt(0),
-        ),
-      ).buffer,
+      new Uint8Array(base64Binary("")),
+      new Uint8Array([]),
+      "<empty>",
+    );
+    assertEquals(
+      new Uint8Array(base64Binary("AGIAYQBzAGUANgA0")),
+      Uint8Array.from(
+        "\u{0}b\u{0}a\u{0}s\u{0}e\u{0}6\u{0}4",
+        ($) => $.charCodeAt(0),
+      ),

       "AGIAYQBzAGUANgA0",
     );
     assertEquals(
       "AGIAYQBzAGUANgA0",
     );
     assertEquals(

-      base64Binary("R/Q="),
-      new Uint16Array([62535]).buffer,
+      new Uint16Array(base64Binary("R/Q=")),
+      new Uint16Array([62535]),

       "R/Q=",
     );
     assertEquals(
       "R/Q=",
     );
     assertEquals(

-      base64Binary("S0lCSQ=="),
-      new Uint8ClampedArray([75, 73, 66, 73]).buffer,
+      new Uint8ClampedArray(base64Binary("S0lCSQ==")),
+      new Uint8ClampedArray([75, 73, 66, 73]),

       "S0lCSQ==",
     );
     assertEquals(
       "S0lCSQ==",
     );
     assertEquals(

-      base64Binary("YmFzZTY0"),
-      new Uint8Array([98, 97, 115, 101, 54, 52]).buffer,
+      new Uint8Array(base64Binary("YmFzZTY0")),
+      new Uint8Array([98, 97, 115, 101, 54, 52]),

       "YmFzZTY0",
     );
       "YmFzZTY0",
     );

+    assertEquals(
+      new Uint8Array(base64Binary("FPucA9l+")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9, 0x7E]),
+      "FPucA9l+",
+    );
+    assertEquals(
+      new Uint8Array(base64Binary("FPucA9k=")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03, 0xD9]),
+      "FPucA9k=",
+    );
+    assertEquals(
+      new Uint8Array(base64Binary("FPucAw==")),
+      new Uint8Array([0x14, 0xFB, 0x9C, 0x03]),
+      "FPucAw==",
+    );
+    assertEquals(
+      new Uint8Array(base64Binary("KA==")),
+      new Uint8Array([0x28]),
+      "KA==",
+    );
+    assertEquals(
+      new Uint8Array(base64Binary("1g==")),
+      new Uint8Array([0xD6]),
+      "1g==",
+    );
+    assertEquals(
+      new Uint16Array(base64Binary("1vg")),
+      new Uint16Array([0xF8D6]),
+      "1vg",
+    );
+    assertEquals(
+      new Uint8Array(base64Binary("1vgA")),
+      new Uint8Array([0xD6, 0xF8, 0x00]),
+      "1vgA",
+    );
+    assertEquals(
+      new Uint8Array(base64Binary("1vgQ")),
+      new Uint8Array([0xD6, 0xF8, 0x10]),
+      "1vgQ",
+    );
+    assertEquals(
+      new Uint32Array(base64Binary("1vgRDA==")),
+      new Uint32Array([0x0C11F8D6]),
+      "1vgRDA==",
+    );
+    assertEquals(
+      new Uint8Array(base64Binary("1vgRDIA=")),
+      new Uint8Array([0xD6, 0xF8, 0x11, 0x0C, 0x80]),
+      "1vgRDIA=",
+    );
+    assertEquals(
+      new Uint16Array(base64Binary("1vgRDIUw")),
+      new Uint16Array([0xF8D6, 0x0C11, 0x3085]),
+      "1vgRDIUw",
+    );

   });
 
   it("[[Call]] throws when provided with an invalid character", () => {
   });
 
   it("[[Call]] throws when provided with an invalid character", () => {


@@ -78,39 +475,82 @@ describe("base64Binary", () => {
 
 describe("base64String", () => {
   it("[[Call]] returns the correct string", () => {
 
 describe("base64String", () => {
   it("[[Call]] returns the correct string", () => {

-    Object.entries(base64s).forEach(([key, value]) =>
-      assertStrictEquals(base64String(value), key)
-    );
+    for (const [source, { base64 }] of data) {
+      assertStrictEquals(base64String(source), base64);
+    }

   });
 });
 
 describe("filenameSafeBase64Binary", () => {
   it("[[Call]] returns the correct data", () => {
     assertEquals(
   });
 });
 
 describe("filenameSafeBase64Binary", () => {
   it("[[Call]] returns the correct data", () => {
     assertEquals(

-      filenameSafeBase64Binary("AGIAYQBzAGUANgA0"),
-      new Uint8Array(
-        Array.prototype.map.call(
-          "\u{0}b\u{0}a\u{0}s\u{0}e\u{0}6\u{0}4",
-          ($) => $.charCodeAt(0),
-        ),
-      ).buffer,
+      new Uint8Array(filenameSafeBase64Binary("")),
+      new Uint8Array([]),
+      "<empty>",
+    );
+    assertEquals(
+      new Uint8Array(filenameSafeBase64Binary("AGIAYQBzAGUANgA0")),
+      Uint8Array.from(
+        "\u{0}b\u{0}a\u{0}s\u{0}e\u{0}6\u{0}4",
+        ($) => $.charCodeAt(0),
+      ),

       "AGIAYQBzAGUANgA0",
     );
     assertEquals(
       "AGIAYQBzAGUANgA0",
     );
     assertEquals(

-      filenameSafeBase64Binary("R_Q="),
-      new Uint16Array([62535]).buffer,
+      new Uint16Array(filenameSafeBase64Binary("R_Q=")),
+      new Uint16Array([62535]),

       "R/Q=",
     );
     assertEquals(
       "R/Q=",
     );
     assertEquals(

-      filenameSafeBase64Binary("S0lCSQ=="),
-      new Uint8ClampedArray([75, 73, 66, 73]).buffer,
+      new Uint8ClampedArray(filenameSafeBase64Binary("S0lCSQ==")),
+      new Uint8ClampedArray([75, 73, 66, 73]),

       "S0lCSQ==",
     );
     assertEquals(
       "S0lCSQ==",
     );
     assertEquals(

-      filenameSafeBase64Binary("YmFzZTY0"),
-      new Uint8Array([98, 97, 115, 101, 54, 52]).buffer,
+      new Uint8Array(filenameSafeBase64Binary("YmFzZTY0")),
+      new Uint8Array([98, 97, 115, 101, 54, 52]),

       "YmFzZTY0",
     );
       "YmFzZTY0",
     );

+    assertEquals(
+      new Uint8Array(filenameSafeBase64Binary("KA==")),
+      new Uint8Array([0x28]),
+      "KA==",
+    );
+    assertEquals(
+      new Uint8Array(filenameSafeBase64Binary("1g==")),
+      new Uint8Array([0xD6]),
+      "1g==",
+    );
+    assertEquals(
+      new Uint16Array(filenameSafeBase64Binary("1vg")),
+      new Uint16Array([0xF8D6]),
+      "1vg",
+    );
+    assertEquals(
+      new Uint8Array(filenameSafeBase64Binary("1vgA")),
+      new Uint8Array([0xD6, 0xF8, 0x00]),
+      "1vgA",
+    );
+    assertEquals(
+      new Uint8Array(filenameSafeBase64Binary("1vgQ")),
+      new Uint8Array([0xD6, 0xF8, 0x10]),
+      "1vgQ",
+    );
+    assertEquals(
+      new Uint32Array(filenameSafeBase64Binary("1vgQDA==")),
+      new Uint32Array([0x0C10F8D6]),
+      "1vgQDA==",
+    );
+    assertEquals(
+      new Uint8Array(filenameSafeBase64Binary("1vgQDIA=")),
+      new Uint8Array([0xD6, 0xF8, 0x10, 0x0C, 0x80]),
+      "1vgQDIA=",
+    );
+    assertEquals(
+      new Uint16Array(filenameSafeBase64Binary("1vgQDIUw")),
+      new Uint16Array([0xF8D6, 0x0C10, 0x3085]),
+      "1vgQDIUw",
+    );

   });
 
   it("[[Call]] throws when provided with an invalid character", () => {
   });
 
   it("[[Call]] throws when provided with an invalid character", () => {


@@ -129,18 +569,75 @@ describe("filenameSafeBase64Binary", () => {
 
 describe("filenameSafeBase64String", () => {
   it("[[Call]] returns the correct string", () => {
 
 describe("filenameSafeBase64String", () => {
   it("[[Call]] returns the correct string", () => {

-    Object.entries(base64s).forEach(([key, value]) =>
+    for (const [source, { base64 }] of data) {

       assertStrictEquals(
       assertStrictEquals(

-        filenameSafeBase64String(value),
-        key.replace("+", "-").replace("/", "_"),
-      )
-    );
+        filenameSafeBase64String(source),
+        base64.replace("+", "-").replace("/", "_"),
+      );
+    }
+  });
+});
+
+describe("isBase16", () => {
+  it("[[Call]] returns true for base64 strings", () => {
+    for (const { base16 } of data.values()) {
+      assert(isBase16(base16));
+      assert(isBase16(base16.toLowerCase()));
+    }
+  });
+
+  it("[[Call]] returns false for others", () => {
+    [
+      undefined,
+      null,
+      true,
+      Symbol(),
+      27,
+      98n,
+      {},
+      [],
+      () => {},
+      new Proxy({}, {}),
+      "abc_",
+      "a",
+      "abc",
+      "abcg",
+    ].forEach((value) => assert(!isBase16(value)));
+  });
+});
+
+describe("isBase32", () => {
+  it("[[Call]] returns true for base32 strings", () => {
+    for (const { base32 } of data.values()) {
+      assert(isBase32(base32));
+      assert(isBase32(base32.toLowerCase()));
+    }
+  });
+
+  it("[[Call]] returns false for others", () => {
+    [
+      undefined,
+      null,
+      true,
+      Symbol(),
+      27,
+      98n,
+      {},
+      [],
+      () => {},
+      new Proxy({}, {}),
+      "ABC1",
+      "A=======",
+      "ABCDEFGHI",
+    ].forEach((value) => assert(!isBase32(value)));

   });
 });
 
 describe("isBase64", () => {
   it("[[Call]] returns true for base64 strings", () => {
   });
 });
 
 describe("isBase64", () => {
   it("[[Call]] returns true for base64 strings", () => {

-    Object.keys(base64s).forEach((key) => assert(isBase64(key)));
+    for (const { base64 } of data.values()) {
+      assert(isBase64(base64));
+    }

   });
 
   it("[[Call]] returns false for others", () => {
   });
 
   it("[[Call]] returns false for others", () => {


@@ -164,11 +661,13 @@ describe("isBase64", () => {
 
 describe("isFilenameSafeBase64", () => {
   it("[[Call]] returns true for filename‐safe base64 strings", () => {
 
 describe("isFilenameSafeBase64", () => {
   it("[[Call]] returns true for filename‐safe base64 strings", () => {

-    Object.keys(base64s).forEach((key) =>
+    for (const { base64 } of data.values()) {

       assert(
       assert(

-        isFilenameSafeBase64(key.replace("+", "-").replace("/", "_")),
-      )
-    );
+        isFilenameSafeBase64(
+          base64.replace("+", "-").replace("/", "_"),
+        ),
+      );
+    }

   });
 
   it("[[Call]] returns false for others", () => {
   });
 
   it("[[Call]] returns false for others", () => {


@@ -189,3 +688,200 @@ describe("isFilenameSafeBase64", () => {
     ].forEach((value) => assert(!isFilenameSafeBase64(value)));
   });
 });
     ].forEach((value) => assert(!isFilenameSafeBase64(value)));
   });
 });

+
+describe("isWRMGBase32", () => {
+  it("[[Call]] returns true for W·R·M·G base32 strings", () => {
+    for (const { wrmg } of data.values()) {
+      assert(isWRMGBase32(wrmg));
+      assert(isWRMGBase32(wrmg.toLowerCase()));
+      assert(isWRMGBase32(`--${wrmg}--`));
+      assert(isWRMGBase32(wrmg.replaceAll(/1/gu, "I")));
+      assert(isWRMGBase32(wrmg.replaceAll(/1/gu, "L")));
+      assert(isWRMGBase32(wrmg.replaceAll(/0/gu, "O")));
+      assert(isWRMGBase32(wrmg.replaceAll(/1/gu, "i")));
+      assert(isWRMGBase32(wrmg.replaceAll(/1/gu, "l")));
+      assert(isWRMGBase32(wrmg.replaceAll(/0/gu, "o")));
+      assert(isWRMGBase32(wrmg.replaceAll(/./gu, ($) => {
+        const rand = Math.random();
+        return rand < 0.25
+          ? $
+          : rand < 0.5
+          ? `-${$}`
+          : rand < 0.75
+          ? `${$}-`
+          : `-${$}-`;
+      })));
+    }
+  });
+
+  it("[[Call]] returns false for others", () => {
+    [
+      undefined,
+      null,
+      true,
+      Symbol(),
+      27,
+      98n,
+      {},
+      [],
+      () => {},
+      new Proxy({}, {}),
+      "ABCU",
+      "A",
+      "ABCDEFGH1",
+    ].forEach((value) => assert(!isWRMGBase32(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);
+    }
+  });
+});