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262 lines
9.0 KiB
JavaScript
262 lines
9.0 KiB
JavaScript
/* Copyright 2017 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import {
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BaseException,
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bytesToString,
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createValidAbsoluteUrl,
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getModificationDate,
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getUuid,
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string32,
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stringToBytes,
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stringToPDFString,
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} from "../../src/shared/util.js";
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describe("util", function () {
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describe("BaseException", function () {
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it("can initialize exception classes derived from BaseException", function () {
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class DerivedException extends BaseException {
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constructor(message) {
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super(message, "DerivedException");
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this.foo = "bar";
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}
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}
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const exception = new DerivedException("Something went wrong");
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expect(exception instanceof DerivedException).toEqual(true);
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expect(exception instanceof BaseException).toEqual(true);
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expect(exception.message).toEqual("Something went wrong");
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expect(exception.name).toEqual("DerivedException");
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expect(exception.foo).toEqual("bar");
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expect(exception.stack).toContain("BaseExceptionClosure");
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});
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});
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describe("bytesToString", function () {
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it("handles non-array arguments", function () {
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expect(function () {
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bytesToString(null);
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}).toThrow(new Error("Invalid argument for bytesToString"));
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});
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it("handles array arguments with a length not exceeding the maximum", function () {
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expect(bytesToString(new Uint8Array([]))).toEqual("");
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expect(bytesToString(new Uint8Array([102, 111, 111]))).toEqual("foo");
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});
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it("handles array arguments with a length exceeding the maximum", function () {
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const length = 10000; // Larger than MAX_ARGUMENT_COUNT = 8192.
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// Create an array with `length` 'a' character codes.
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const bytes = new Uint8Array(length);
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for (let i = 0; i < length; i++) {
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bytes[i] = "a".charCodeAt(0);
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}
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// Create a string with `length` 'a' characters.
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const string = "a".repeat(length);
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expect(bytesToString(bytes)).toEqual(string);
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});
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});
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describe("string32", function () {
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it("converts unsigned 32-bit integers to strings", function () {
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expect(string32(0x74727565)).toEqual("true");
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expect(string32(0x74797031)).toEqual("typ1");
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expect(string32(0x4f54544f)).toEqual("OTTO");
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});
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});
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describe("stringToBytes", function () {
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it("handles non-string arguments", function () {
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expect(function () {
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stringToBytes(null);
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}).toThrow(new Error("Invalid argument for stringToBytes"));
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});
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it("handles string arguments", function () {
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expect(stringToBytes("")).toEqual(new Uint8Array([]));
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expect(stringToBytes("foo")).toEqual(new Uint8Array([102, 111, 111]));
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});
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});
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describe("stringToPDFString", function () {
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it("handles ISO Latin 1 strings", function () {
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const str = "\x8Dstring\x8E";
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expect(stringToPDFString(str)).toEqual("\u201Cstring\u201D");
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});
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it("handles UTF-16 big-endian strings", function () {
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const str = "\xFE\xFF\x00\x73\x00\x74\x00\x72\x00\x69\x00\x6E\x00\x67";
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expect(stringToPDFString(str)).toEqual("string");
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});
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it("handles incomplete UTF-16 big-endian strings", function () {
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const str = "\xFE\xFF\x00\x73\x00\x74\x00\x72\x00\x69\x00\x6E\x00";
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expect(stringToPDFString(str)).toEqual("strin");
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});
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it("handles UTF-16 little-endian strings", function () {
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const str = "\xFF\xFE\x73\x00\x74\x00\x72\x00\x69\x00\x6E\x00\x67\x00";
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expect(stringToPDFString(str)).toEqual("string");
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});
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it("handles incomplete UTF-16 little-endian strings", function () {
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const str = "\xFF\xFE\x73\x00\x74\x00\x72\x00\x69\x00\x6E\x00\x67";
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expect(stringToPDFString(str)).toEqual("strin");
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});
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it("handles UTF-8 strings", function () {
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const simpleStr = "\xEF\xBB\xBF\x73\x74\x72\x69\x6E\x67";
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expect(stringToPDFString(simpleStr)).toEqual("string");
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const complexStr =
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"\xEF\xBB\xBF\xE8\xA1\xA8\xE3\x83\x9D\xE3\x81\x82\x41\xE9\xB7\x97" +
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"\xC5\x92\xC3\xA9\xEF\xBC\xA2\xE9\x80\x8D\xC3\x9C\xC3\x9F\xC2\xAA" +
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"\xC4\x85\xC3\xB1\xE4\xB8\x82\xE3\x90\x80\xF0\xA0\x80\x80";
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expect(stringToPDFString(complexStr)).toEqual(
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"表ポあA鷗ŒéＢ逍Üߪąñ丂㐀𠀀"
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);
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});
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it("handles empty strings", function () {
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// ISO Latin 1
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const str1 = "";
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expect(stringToPDFString(str1)).toEqual("");
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// UTF-16BE
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const str2 = "\xFE\xFF";
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expect(stringToPDFString(str2)).toEqual("");
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// UTF-16LE
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const str3 = "\xFF\xFE";
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expect(stringToPDFString(str3)).toEqual("");
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// UTF-8
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const str4 = "\xEF\xBB\xBF";
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expect(stringToPDFString(str4)).toEqual("");
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});
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it("handles strings with language code", function () {
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// ISO Latin 1
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const str1 = "hello \x1benUS\x1bworld";
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expect(stringToPDFString(str1)).toEqual("hello world");
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// UTF-16BE
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const str2 =
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"\xFE\xFF\x00h\x00e\x00l\x00l\x00o\x00 \x00\x1b\x00e\x00n\x00U\x00S\x00\x1b\x00w\x00o\x00r\x00l\x00d";
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expect(stringToPDFString(str2)).toEqual("hello world");
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// UTF-16LE
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const str3 =
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"\xFF\xFEh\x00e\x00l\x00l\x00o\x00 \x00\x1b\x00e\x00n\x00U\x00S\x00\x1b\x00w\x00o\x00r\x00l\x00d\x00";
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expect(stringToPDFString(str3)).toEqual("hello world");
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});
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});
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describe("ReadableStream", function () {
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it("should return an Object", function () {
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const readable = new ReadableStream();
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expect(typeof readable).toEqual("object");
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});
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it("should have property getReader", function () {
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const readable = new ReadableStream();
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expect(typeof readable.getReader).toEqual("function");
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});
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});
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describe("URL", function () {
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it("should return an Object", function () {
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const url = new URL("https://example.com");
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expect(typeof url).toEqual("object");
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});
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it("should have property `href`", function () {
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const url = new URL("https://example.com");
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expect(typeof url.href).toEqual("string");
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});
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});
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describe("createValidAbsoluteUrl", function () {
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it("handles invalid URLs", function () {
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expect(createValidAbsoluteUrl(undefined, undefined)).toEqual(null);
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expect(createValidAbsoluteUrl(null, null)).toEqual(null);
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expect(createValidAbsoluteUrl("/foo", "/bar")).toEqual(null);
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});
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it("handles URLs that do not use an allowed protocol", function () {
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expect(createValidAbsoluteUrl("magnet:?foo", null)).toEqual(null);
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});
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it("correctly creates a valid URL for allowed protocols", function () {
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// `http` protocol
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expect(
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createValidAbsoluteUrl("http://www.mozilla.org/foo", null)
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).toEqual(new URL("http://www.mozilla.org/foo"));
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expect(createValidAbsoluteUrl("/foo", "http://www.mozilla.org")).toEqual(
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new URL("http://www.mozilla.org/foo")
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);
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// `https` protocol
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expect(
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createValidAbsoluteUrl("https://www.mozilla.org/foo", null)
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).toEqual(new URL("https://www.mozilla.org/foo"));
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expect(createValidAbsoluteUrl("/foo", "https://www.mozilla.org")).toEqual(
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new URL("https://www.mozilla.org/foo")
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);
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// `ftp` protocol
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expect(createValidAbsoluteUrl("ftp://www.mozilla.org/foo", null)).toEqual(
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new URL("ftp://www.mozilla.org/foo")
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);
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expect(createValidAbsoluteUrl("/foo", "ftp://www.mozilla.org")).toEqual(
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new URL("ftp://www.mozilla.org/foo")
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);
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// `mailto` protocol (base URLs have no meaning and should yield `null`)
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expect(createValidAbsoluteUrl("mailto:foo@bar.baz", null)).toEqual(
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new URL("mailto:foo@bar.baz")
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);
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expect(createValidAbsoluteUrl("/foo", "mailto:foo@bar.baz")).toEqual(
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null
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);
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// `tel` protocol (base URLs have no meaning and should yield `null`)
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expect(createValidAbsoluteUrl("tel:+0123456789", null)).toEqual(
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new URL("tel:+0123456789")
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);
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expect(createValidAbsoluteUrl("/foo", "tel:0123456789")).toEqual(null);
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});
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});
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describe("getModificationDate", function () {
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it("should get a correctly formatted date", function () {
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const date = new Date(Date.UTC(3141, 5, 9, 2, 6, 53));
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expect(getModificationDate(date)).toEqual("31410609020653");
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expect(getModificationDate(date.toString())).toEqual("31410609020653");
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});
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});
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describe("getUuid", function () {
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it("should get uuid string", function () {
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const uuid = getUuid();
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expect(typeof uuid).toEqual("string");
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expect(uuid.length).toBeGreaterThanOrEqual(32);
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});
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});
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});
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