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-rw-r--r--test/js/deno/encoding/encoding.test.ts343
1 files changed, 343 insertions, 0 deletions
diff --git a/test/js/deno/encoding/encoding.test.ts b/test/js/deno/encoding/encoding.test.ts
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+++ b/test/js/deno/encoding/encoding.test.ts
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+// Copyright 2018+ the Deno authors. All rights reserved. MIT license.
+// https://raw.githubusercontent.com/denoland/deno/main/cli/tests/unit/text_encoding_test.ts
+import { assert, assertEquals, assertThrows } from "deno:harness";
+Deno.test(function btoaSuccess() {
+ const text = "hello world";
+ const encoded = btoa(text);
+ assertEquals(encoded, "aGVsbG8gd29ybGQ=");
+});
+Deno.test(function atobSuccess() {
+ const encoded = "aGVsbG8gd29ybGQ=";
+ const decoded = atob(encoded);
+ assertEquals(decoded, "hello world");
+});
+Deno.test(function atobWithAsciiWhitespace() {
+ const encodedList = [
+ " aGVsbG8gd29ybGQ=",
+ " aGVsbG8gd29ybGQ=",
+ "aGVsbG8gd29ybGQ= ",
+ "aGVsbG8gd29ybGQ=\n",
+ "aGVsbG\t8gd29ybGQ=",
+ `aGVsbG\t8g
+ d29ybGQ=`
+ ];
+ for (const encoded of encodedList){
+ const decoded = atob(encoded);
+ assertEquals(decoded, "hello world");
+ }
+});
+Deno.test(function atobThrows() {
+ let threw = false;
+ try {
+ atob("aGVsbG8gd29ybGQ==");
+ } catch (_e) {
+ threw = true;
+ }
+ assert(threw);
+});
+Deno.test(function atobThrows2() {
+ let threw = false;
+ try {
+ atob("aGVsbG8gd29ybGQ===");
+ } catch (_e) {
+ threw = true;
+ }
+ assert(threw);
+});
+Deno.test(function atobThrows3() {
+ let threw = false;
+ try {
+ atob("foobar!!");
+ } catch (e) {
+ if (e instanceof DOMException && e.toString().startsWith("InvalidCharacterError:")) {
+ threw = true;
+ }
+ }
+ assert(threw);
+});
+Deno.test(function btoaFailed() {
+ const text = "ไฝ ๅฅฝ";
+ assertThrows(()=>{
+ btoa(text);
+ }, DOMException);
+});
+Deno.test(function textDecoder2() {
+ const fixture = new Uint8Array([
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xbd,
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xae,
+ 0xf0,
+ 0x9d,
+ 0x94,
+ 0x81,
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xbd
+ ]);
+ const decoder = new TextDecoder();
+ assertEquals(decoder.decode(fixture), "๐“ฝ๐“ฎ๐”๐“ฝ");
+});
+Deno.test(function textDecoderASCII() {
+ const fixture = new Uint8Array([
+ 0x89,
+ 0x95,
+ 0x9f,
+ 0xbf
+ ]);
+ const decoder = new TextDecoder("ascii");
+ assertEquals(decoder.decode(fixture), "โ€ฐโ€ขลธยฟ");
+});
+Deno.test(function textDecoderErrorEncoding() {
+ let didThrow = false;
+ try {
+ new TextDecoder("Foo");
+ } catch (e) {
+ didThrow = true;
+ assert(e instanceof Error);
+ assertEquals(e.message, "The encoding label provided ('Foo') is invalid.");
+ }
+ assert(didThrow);
+});
+Deno.test(function textEncoder() {
+ const fixture = "๐“ฝ๐“ฎ๐”๐“ฝ";
+ const encoder = new TextEncoder();
+ assertEquals(Array.from(encoder.encode(fixture)), [
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xbd,
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xae,
+ 0xf0,
+ 0x9d,
+ 0x94,
+ 0x81,
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xbd
+ ]);
+});
+Deno.test(function textEncodeInto() {
+ const fixture = "text";
+ const encoder = new TextEncoder();
+ const bytes = new Uint8Array(5);
+ const result = encoder.encodeInto(fixture, bytes);
+ assertEquals(result.read, 4);
+ assertEquals(result.written, 4);
+ assertEquals(Array.from(bytes), [
+ 0x74,
+ 0x65,
+ 0x78,
+ 0x74,
+ 0x00
+ ]);
+});
+Deno.test(function textEncodeInto2() {
+ const fixture = "๐“ฝ๐“ฎ๐”๐“ฝ";
+ const encoder = new TextEncoder();
+ const bytes = new Uint8Array(17);
+ const result = encoder.encodeInto(fixture, bytes);
+ assertEquals(result.read, 8);
+ assertEquals(result.written, 16);
+ assertEquals(Array.from(bytes), [
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xbd,
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xae,
+ 0xf0,
+ 0x9d,
+ 0x94,
+ 0x81,
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xbd,
+ 0x00
+ ]);
+});
+Deno.test(function textEncodeInto3() {
+ const fixture = "๐“ฝ๐“ฎ๐”๐“ฝ";
+ const encoder = new TextEncoder();
+ const bytes = new Uint8Array(5);
+ const result = encoder.encodeInto(fixture, bytes);
+ assertEquals(result.read, 2);
+ assertEquals(result.written, 4);
+ assertEquals(Array.from(bytes), [
+ 0xf0,
+ 0x9d,
+ 0x93,
+ 0xbd,
+ 0x00
+ ]);
+});
+Deno.test(function loneSurrogateEncodeInto() {
+ const fixture = "lone๐„ž\ud888surrogate";
+ const encoder = new TextEncoder();
+ const bytes = new Uint8Array(20);
+ const result = encoder.encodeInto(fixture, bytes);
+ assertEquals(result.read, 16);
+ assertEquals(result.written, 20);
+ assertEquals(Array.from(bytes), [
+ 0x6c,
+ 0x6f,
+ 0x6e,
+ 0x65,
+ 0xf0,
+ 0x9d,
+ 0x84,
+ 0x9e,
+ 0xef,
+ 0xbf,
+ 0xbd,
+ 0x73,
+ 0x75,
+ 0x72,
+ 0x72,
+ 0x6f,
+ 0x67,
+ 0x61,
+ 0x74,
+ 0x65
+ ]);
+});
+Deno.test(function loneSurrogateEncodeInto2() {
+ const fixture = "\ud800";
+ const encoder = new TextEncoder();
+ const bytes = new Uint8Array(3);
+ const result = encoder.encodeInto(fixture, bytes);
+ assertEquals(result.read, 1);
+ assertEquals(result.written, 3);
+ assertEquals(Array.from(bytes), [
+ 0xef,
+ 0xbf,
+ 0xbd
+ ]);
+});
+Deno.test(function loneSurrogateEncodeInto3() {
+ const fixture = "\udc00";
+ const encoder = new TextEncoder();
+ const bytes = new Uint8Array(3);
+ const result = encoder.encodeInto(fixture, bytes);
+ assertEquals(result.read, 1);
+ assertEquals(result.written, 3);
+ assertEquals(Array.from(bytes), [
+ 0xef,
+ 0xbf,
+ 0xbd
+ ]);
+});
+Deno.test(function swappedSurrogatePairEncodeInto4() {
+ const fixture = "\udc00\ud800";
+ const encoder = new TextEncoder();
+ const bytes = new Uint8Array(8);
+ const result = encoder.encodeInto(fixture, bytes);
+ assertEquals(result.read, 2);
+ assertEquals(result.written, 6);
+ assertEquals(Array.from(bytes), [
+ 0xef,
+ 0xbf,
+ 0xbd,
+ 0xef,
+ 0xbf,
+ 0xbd,
+ 0x00,
+ 0x00
+ ]);
+});
+Deno.test(function textDecoderSharedUint8Array() {
+ const ab = new SharedArrayBuffer(6);
+ const dataView = new DataView(ab);
+ const charCodeA = "A".charCodeAt(0);
+ for(let i = 0; i < ab.byteLength; i++){
+ dataView.setUint8(i, charCodeA + i);
+ }
+ const ui8 = new Uint8Array(ab);
+ const decoder = new TextDecoder();
+ const actual = decoder.decode(ui8);
+ assertEquals(actual, "ABCDEF");
+});
+Deno.test(function textDecoderSharedInt32Array() {
+ const ab = new SharedArrayBuffer(8);
+ const dataView = new DataView(ab);
+ const charCodeA = "A".charCodeAt(0);
+ for(let i = 0; i < ab.byteLength; i++){
+ dataView.setUint8(i, charCodeA + i);
+ }
+ const i32 = new Int32Array(ab);
+ const decoder = new TextDecoder();
+ const actual = decoder.decode(i32);
+ assertEquals(actual, "ABCDEFGH");
+});
+Deno.test(function toStringShouldBeWebCompatibility() {
+ const encoder = new TextEncoder();
+ assertEquals(encoder.toString(), "[object TextEncoder]");
+ const decoder = new TextDecoder();
+ assertEquals(decoder.toString(), "[object TextDecoder]");
+});
+Deno.test(function textEncoderShouldCoerceToString() {
+ const encoder = new TextEncoder();
+ const fixutreText = "text";
+ const fixture = {
+ toString () {
+ return fixutreText;
+ }
+ };
+ const bytes = encoder.encode(fixture as unknown as string);
+ const decoder = new TextDecoder();
+ const decoded = decoder.decode(bytes);
+ assertEquals(decoded, fixutreText);
+});
+Deno.test(function binaryEncode() {
+ const ops = Deno[Deno.internal].core.ops;
+ function asBinaryString(bytes: Uint8Array): string {
+ return Array.from(bytes).map((v: number)=>String.fromCodePoint(v)).join("");
+ }
+ function decodeBinary(binaryString: string) {
+ const chars: string[] = Array.from(binaryString);
+ return chars.map((v: string): number | undefined =>v.codePointAt(0));
+ }
+ const invalid = new Uint8Array([
+ 0xC0
+ ]);
+ assertEquals(ops.op_encode_binary_string(invalid), asBinaryString(invalid));
+ const invalid2 = new Uint8Array([
+ 0xC1
+ ]);
+ assertEquals(ops.op_encode_binary_string(invalid2), asBinaryString(invalid2));
+ for(let i = 0, j = 255; i <= 255; i++, j--){
+ const bytes = new Uint8Array([
+ i,
+ j
+ ]);
+ const binaryString = ops.op_encode_binary_string(bytes);
+ assertEquals(binaryString, asBinaryString(bytes));
+ assertEquals(Array.from(bytes), decodeBinary(binaryString));
+ }
+ const inputs = [
+ "ฯƒ๐Ÿ˜€",
+ "ะšะธั€ะธะปะปะธั†ะฐ is Cyrillic",
+ "๐“ฝ๐“ฎ๐”๐“ฝ",
+ "lone๐„ž\ud888surrogate",
+ "\udc00\ud800",
+ "\ud800"
+ ];
+ for (const input of inputs){
+ const bytes = new TextEncoder().encode(input);
+ const binaryString = ops.op_encode_binary_string(bytes);
+ assertEquals(binaryString, asBinaryString(bytes));
+ assertEquals(Array.from(bytes), decodeBinary(binaryString));
+ }
+});
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