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utilitiesTest.js (21795B)


      1 describe("Zotero.Utilities", function() {
      2 	describe("cleanAuthor", function() {
      3 		it('should parse author names', function() {
      4 			for(let useComma of [false, true]) {
      5 				for(let first_expected of [["First", "First"],
      6 				                           ["First Middle", "First Middle"],
      7 				                           ["F. R. S.", "F. R. S."],
      8 				                           ["F.R.S.", "F. R. S."],
      9 				                           ["F R S", "F. R. S."],
     10 				                           ["FRS", "F. R. S."]]) {
     11 					let [first, expected] = first_expected;
     12 					let str = useComma ? "Last, "+first : first+" Last";
     13 					let author = Zotero.Utilities.cleanAuthor(str, "author", useComma);
     14 					assert.equal(author.firstName, expected);
     15 					assert.equal(author.lastName, "Last");
     16 				}
     17 			}
     18 		});
     19 		
     20 		it('should not parse words starting with symbols as last name', function() {
     21 			let author = Zotero.Utilities.cleanAuthor('First Middle Last [CountryName]', false);
     22 			assert.equal(author.firstName, 'First Middle');
     23 			// Brackets at the beginning and end of a string get removed for strings
     24 			// such as [First Last] -> Last, First.
     25 			// The current output is not ideal, but better than "[CountryName, First Middle Last"
     26 			assert.equal(author.lastName, 'Last [CountryName');
     27 		});
     28 		
     29 		it('should parse names starting with unicode characters correctly', function() {
     30 			let author = Zotero.Utilities.cleanAuthor('Ąžuolas Žolynas', false);
     31 			assert.equal(author.firstName, 'Ąžuolas');
     32 			assert.equal(author.lastName, 'Žolynas');
     33 		})
     34 	});
     35 	
     36 	
     37 	describe("#cleanDOI()", function () {
     38 		var cleanDOI = Zotero.Utilities.cleanDOI;
     39 		var doi = '10.1088/1748-9326/11/4/048002';
     40 		var shortDOI = '10/aabbe';
     41 		
     42 		it("should parse a DOI", function () {
     43 			assert.equal(cleanDOI(`${doi}`), doi);
     44 		});
     45 		
     46 		it("should parse a short DOI", function () {
     47 			assert.equal(cleanDOI(`${shortDOI}`), shortDOI);
     48 		});
     49 		
     50 		it("should parse a DOI at the end of a sentence", function () {
     51 			assert.equal(cleanDOI(`Foo bar ${doi}. Foo bar`), doi);
     52 		});
     53 		
     54 		// FIXME
     55 		it.skip("should parse a DOI in parentheses", function () {
     56 			assert.equal(cleanDOI(`Foo bar (${doi}) foo bar`), doi);
     57 		});
     58 		
     59 		// FIXME
     60 		it.skip("should parse a DOI in brackets", function () {
     61 			assert.equal(cleanDOI(`Foo bar [${doi}] foo bar`), doi);
     62 		});
     63 	});
     64 	
     65 	
     66 	describe("#cleanISBN()", function() {
     67 		let cleanISBN = Zotero.Utilities.cleanISBN;
     68 		it("should return false for non-ISBN string", function() {
     69 			assert.isFalse(cleanISBN(''), 'returned false for empty string');
     70 			assert.isFalse(cleanISBN('Random String 123'), 'returned false for non-ISBN string');
     71 			assert.isFalse(cleanISBN('1234X67890'), 'returned false for ISBN10-looking string with X in the middle');
     72 			assert.isFalse(cleanISBN('987123456789X'), 'returned false for ISBN13-looking string with X as check-digit');
     73 		});
     74 		it("should return false for invalid ISBN string", function() {
     75 			assert.isFalse(cleanISBN('1234567890'), 'returned false for invalid ISBN10');
     76 			assert.isFalse(cleanISBN('9871234567890'), 'returned false for invalid ISBN13');
     77 		});
     78 		it("should return valid ISBN string given clean, valid ISBN string", function() {
     79 			assert.equal(cleanISBN('123456789X'), '123456789X', 'passed through valid ISBN10');
     80 			assert.equal(cleanISBN('123456789x'), '123456789X', 'passed through valid ISBN10 with lower case input');
     81 			assert.equal(cleanISBN('9781234567897'), '9781234567897', 'passed through valid ISBN13');
     82 			assert.equal(cleanISBN('9791843123391'), '9791843123391', 'passed through valid ISBN13 in 979 range');
     83 		});
     84 		it("should strip off internal characters in ISBN string", function() {
     85 			let ignoredChars = '\x2D\xAD\u2010\u2011\u2012\u2013\u2014\u2015\u2043\u2212' // Dashes
     86 				+ ' \xA0\r\n\t\x0B\x0C\u1680\u2000\u2001\u2002\u2003\u2004\u2005' // Spaces
     87 				+ '\u2006\u2007\u2008\u2009\u200A\u2028\u2029\u202F\u205F\u3000\uFEFF';
     88 			for (let i=0; i<ignoredChars.length; i++) {
     89 				let charCode = '\\u' + Zotero.Utilities.lpad(ignoredChars.charCodeAt(i).toString(16).toUpperCase(), '0', 4);
     90 				assert.equal(cleanISBN('9781' + ignoredChars.charAt(i) + '234567897'), '9781234567897', 'stripped off ' + charCode);
     91 			}
     92 			assert.equal(cleanISBN('9781' + ignoredChars + '234567897'), '9781234567897', 'stripped off all ignored characters');
     93 			
     94 			let isbnChars = ignoredChars + '1234567890';
     95 			for (let i=1; i<1327; i++) { // More common characters through Cyrillic letters
     96 				let c = String.fromCharCode(i);
     97 				if (isbnChars.indexOf(c) != -1) continue;
     98 				
     99 				let charCode = '\\u' + Zotero.Utilities.lpad(i.toString(16).toUpperCase(), '0', 4);
    100 				assert.isFalse(cleanISBN('9781' + c + '234567897'), 'did not ignore internal character ' + charCode);
    101 			}
    102 		});
    103 		it("should strip off surrounding non-ISBN string", function() {
    104 			assert.equal(cleanISBN('ISBN 9781234567897'), '9781234567897', 'stripped off preceding string (with space)');
    105 			assert.equal(cleanISBN('ISBN:9781234567897'), '9781234567897', 'stripped off preceding string (without space)');
    106 			assert.equal(cleanISBN('9781234567897 ISBN13'), '9781234567897', 'stripped off trailing string (with space)');
    107 			assert.equal(cleanISBN('9781234567897(ISBN13)'), '9781234567897', 'stripped off trailing string (without space)');
    108 			assert.equal(cleanISBN('ISBN13:9781234567897 (print)'), '9781234567897', 'stripped off surrounding string');
    109 			assert.equal(cleanISBN('978 9781234567 897'), '9781234567897', 'stripped off pseudo-ISBN prefix');
    110 		});
    111 		it("should return the first valid ISBN from a string with multiple ISBNs", function() {
    112 			assert.equal(cleanISBN('9781234567897, 9791843123391'), '9781234567897', 'returned first valid ISBN13 from list of valid ISBN13s');
    113 			assert.equal(cleanISBN('123456789X, 0199535922'), '123456789X', 'returned first valid ISBN13 from list of valid ISBN13s');
    114 			assert.equal(cleanISBN('123456789X 9781234567897'), '123456789X', 'returned first valid ISBN (10) from a list of mixed-length ISBNs');
    115 			assert.equal(cleanISBN('9781234567897 123456789X'), '9781234567897', 'returned first valid ISBN (13) from a list of mixed-length ISBNs');
    116 			assert.equal(cleanISBN('1234567890 9781234567897'), '9781234567897', 'returned first valid ISBN in the list with valid and invalid ISBNs');
    117 		});
    118 		it("should not return an ISBN from a middle of a longer number string", function() {
    119 			assert.isFalse(cleanISBN('1239781234567897'), 'did not ignore number prefix');
    120 			assert.isFalse(cleanISBN('9781234567897123'), 'did not ignore number suffix');
    121 			assert.isFalse(cleanISBN('1239781234567897123'), 'did not ignore surrounding numbers');
    122 		});
    123 		it("should return valid ISBN from a dirty string", function() {
    124 			assert.equal(cleanISBN('<b>ISBN</b>:978-1 234\xA056789 - 7(print)\n<b>ISBN-10</b>:123\x2D456789X (print)'), '9781234567897');
    125 		});
    126 		it("should not validate check digit when dontValidate is set", function() {
    127 			assert.equal(cleanISBN('9781234567890', true), '9781234567890', 'plain ISBN13 with wrong check digit');
    128 			assert.equal(cleanISBN('1234567890', true), '1234567890', 'plain ISBN10 with wrong check digit');
    129 			assert.equal(cleanISBN('1234567890 9781234567897', true), '1234567890', 'returned first ISBN10 (invalid) in the list with valid and invalid ISBNs');
    130 			assert.equal(cleanISBN('9781234567890 123456789X', true), '9781234567890', 'returned first ISBN13 (invalid) in the list with valid and invalid ISBNs');
    131 		});
    132 		it("should not pass non-ISBN strings if dontValidate is set", function() {
    133 			assert.isFalse(cleanISBN('', true), 'returned false for empty string');
    134 			assert.isFalse(cleanISBN('Random String 123', true), 'returned false for non-ISBN string');
    135 			assert.isFalse(cleanISBN('1234X67890', true), 'returned false for ISBN10-looking string with X in the middle');
    136 			assert.isFalse(cleanISBN('123456789Y', true), 'returned false for ISBN10-looking string with Y as check digit');
    137 			assert.isFalse(cleanISBN('987123456789X', true), 'returned false for ISBN13-looking string with X as check-digit');
    138 			assert.isFalse(cleanISBN('1239781234567897', true), 'did not ignore number prefix');
    139 			assert.isFalse(cleanISBN('9781234567897123', true), 'did not ignore number suffix');
    140 			assert.isFalse(cleanISBN('1239781234567897123', true), 'did not ignore surrounding numbers');
    141 		});
    142 	});
    143 	describe("toISBN13", function() {
    144 		let toISBN13 = Zotero.Utilities.toISBN13;
    145 		it("should throw on invalid ISBN", function() {
    146 			let errorMsg = 'ISBN not found in "',
    147 				invalidStrings = ['', 'random string', '1234567890123'];
    148 			for (let i=0; i<invalidStrings.length; i++) {
    149 				assert.throws(toISBN13.bind(null,invalidStrings[i]), errorMsg + invalidStrings[i] + '"');
    150 			}
    151 		});
    152 		it("should convert to ISBN13", function() {
    153 			assert.equal(toISBN13('123456789X'), '9781234567897', 'converts ISBN10 to ISBN13');
    154 			assert.equal(toISBN13('9781234567897'), '9781234567897', 'ISBN13 stays the same');
    155 			assert.equal(toISBN13('9791843123391'), '9791843123391', '979 ISBN13 stays the same');
    156 			assert.equal(toISBN13('978-1234567897'), '9781234567897', 'accepts hyphenated ISBN');
    157 		});
    158 		it("should ignore invalid check digit", function() {
    159 			assert.equal(toISBN13('1234567890'), '9781234567897', 'converts ISBN10 with invalid check digit to ISBN13');
    160 			assert.equal(toISBN13('9781234567890'), '9781234567897', 'corrects invalid ISBN13 check digit');
    161 		});
    162 	});
    163 	describe("cleanISSN", function() {
    164 		let cleanISSN = Zotero.Utilities.cleanISSN;
    165 		it("should return false for non-ISSN string", function() {
    166 			assert.isFalse(cleanISSN(''), 'returned false for empty string');
    167 			assert.isFalse(cleanISSN('Random String 123'), 'returned false for non-ISSN string');
    168 			assert.isFalse(cleanISSN('123X-5679'), 'returned false for ISSN-looking string with X in the middle');
    169 		});
    170 		it("should return false for invalid ISSN string", function() {
    171 			assert.isFalse(cleanISSN('12345678'), 'returned false for invalid ISSN');
    172 			assert.isFalse(cleanISSN('1234-5678'), 'returned false for invalid ISSN with hyphen');
    173 		});
    174 		it("should return valid ISSN string given clean, valid ISSN string", function() {
    175 			assert.equal(cleanISSN('1234-5679'), '1234-5679', 'passed through valid ISSN');
    176 			assert.equal(cleanISSN('2090-424X'), '2090-424X', 'passed through valid ISSN with X check digit');
    177 		});
    178 		it("should hyphenate valid ISSN", function() {
    179 			assert.equal(cleanISSN('12345679'), '1234-5679', 'hyphenated valid ISSN');
    180 		});
    181 		it("should strip off internal characters in ISSN string", function() {
    182 			let ignoredChars = '\x2D\xAD\u2010\u2011\u2012\u2013\u2014\u2015\u2043\u2212' // Dashes
    183 				+ ' \xA0\r\n\t\x0B\x0C\u1680\u2000\u2001\u2002\u2003\u2004\u2005' // Spaces
    184 				+ '\u2006\u2007\u2008\u2009\u200A\u2028\u2029\u202F\u205F\u3000\uFEFF';
    185 			for (let i=0; i<ignoredChars.length; i++) {
    186 				let charCode = '\\u' + Zotero.Utilities.lpad(ignoredChars.charCodeAt(i).toString(16).toUpperCase(), '0', 4);
    187 				assert.equal(cleanISSN('1' + ignoredChars.charAt(i) + '2345679'), '1234-5679', 'stripped off ' + charCode);
    188 			}
    189 			assert.equal(cleanISSN('1' + ignoredChars + '2345679'), '1234-5679', 'stripped off all ignored characters');
    190 			
    191 			let isbnChars = ignoredChars + '1234567890';
    192 			for (let i=1; i<1327; i++) { // More common characters through Cyrillic letters
    193 				let c = String.fromCharCode(i);
    194 				if (isbnChars.indexOf(c) != -1) continue;
    195 				
    196 				let charCode = '\\u' + Zotero.Utilities.lpad(i.toString(16).toUpperCase(), '0', 4);
    197 				assert.isFalse(cleanISSN('1' + c + '2345679'), 'did not ignore internal character ' + charCode);
    198 			}
    199 		});
    200 		it("should strip off surrounding non-ISSN string", function() {
    201 			assert.equal(cleanISSN('ISSN 1234-5679'), '1234-5679', 'stripped off preceding string (with space)');
    202 			assert.equal(cleanISSN('ISSN:1234-5679'), '1234-5679', 'stripped off preceding string (without space)');
    203 			assert.equal(cleanISSN('1234-5679 ISSN'), '1234-5679', 'stripped off trailing string (with space)');
    204 			assert.equal(cleanISSN('1234-5679(ISSN)'), '1234-5679', 'stripped off trailing string (without space)');
    205 			assert.equal(cleanISSN('ISSN:1234-5679 (print)'), '1234-5679', 'stripped off surrounding string');
    206 			assert.equal(cleanISSN('123 12345 679'), '1234-5679', 'stripped off pseudo-ISSN prefix');
    207 		});
    208 		it("should return the first valid ISSN from a string with multiple ISSNs", function() {
    209 			assert.equal(cleanISSN('1234-5679, 0028-0836'), '1234-5679', 'returned first valid ISSN from list of valid ISSNs');
    210 			assert.equal(cleanISSN('1234-5678, 0028-0836'), '0028-0836', 'returned first valid ISSN in the list with valid and invalid ISSNs');
    211 		});
    212 		it("should not return an ISSN from a middle of a longer number string", function() {
    213 			assert.isFalse(cleanISSN('12312345679'), 'did not ignore number prefix');
    214 			assert.isFalse(cleanISSN('12345679123'), 'did not ignore number suffix');
    215 			assert.isFalse(cleanISSN('12312345679123'), 'did not ignore surrounding numbers');
    216 		});
    217 		it("should return valid ISSN from a dirty string", function() {
    218 			assert.equal(cleanISSN('<b>ISSN</b>:1234\xA0-\t5679(print)\n<b>eISSN (electronic)</b>:0028-0836'), '1234-5679');
    219 		});
    220 	});
    221 	describe("itemToCSLJSON", function() {
    222 		it("should accept Zotero.Item and Zotero export item format", Zotero.Promise.coroutine(function* () {
    223 			let data = yield populateDBWithSampleData(loadSampleData('journalArticle'));
    224 			let item = yield Zotero.Items.getAsync(data.journalArticle.id);
    225 			
    226 			let fromZoteroItem;
    227 			try {
    228 				fromZoteroItem = Zotero.Utilities.itemToCSLJSON(item);
    229 			} catch(e) {
    230 				assert.fail(e, null, 'accepts Zotero Item');
    231 			}
    232 			assert.isObject(fromZoteroItem, 'converts Zotero Item to object');
    233 			assert.isNotNull(fromZoteroItem, 'converts Zotero Item to non-null object');
    234 			
    235 			
    236 			let fromExportItem;
    237 			try {
    238 				fromExportItem = Zotero.Utilities.itemToCSLJSON(
    239 					Zotero.Utilities.Internal.itemToExportFormat(item)
    240 				);
    241 			} catch(e) {
    242 				assert.fail(e, null, 'accepts Zotero export item');
    243 			}
    244 			assert.isObject(fromExportItem, 'converts Zotero export item to object');
    245 			assert.isNotNull(fromExportItem, 'converts Zotero export item to non-null object');
    246 			
    247 			assert.deepEqual(fromZoteroItem, fromExportItem, 'conversion from Zotero Item and from export item are the same');
    248 		}));
    249 		it("should convert standalone notes to expected format", Zotero.Promise.coroutine(function* () {
    250 			let note = new Zotero.Item('note');
    251 			note.setNote('Some note longer than 50 characters, which will become the title.');
    252 			yield note.saveTx();
    253 			
    254 			let cslJSONNote = Zotero.Utilities.itemToCSLJSON(note);
    255 			assert.equal(cslJSONNote.type, 'article', 'note is exported as "article"');
    256 			assert.equal(cslJSONNote.title, note.getNoteTitle(), 'note title is set to Zotero pseudo-title');
    257 		}));
    258 		it("should convert standalone attachments to expected format", Zotero.Promise.coroutine(function* () {
    259 			let file = getTestDataDirectory();
    260 			file.append("empty.pdf");
    261 			
    262 			let attachment = yield Zotero.Attachments.importFromFile({"file":file});
    263 			attachment.setField('title', 'Empty');
    264 			attachment.setField('accessDate', '2001-02-03 12:13:14');
    265 			attachment.setField('url', 'http://example.com');
    266 			attachment.setNote('Note');
    267 			
    268 			yield attachment.saveTx();
    269 			
    270 			let cslJSONAttachment = Zotero.Utilities.itemToCSLJSON(attachment);
    271 			assert.equal(cslJSONAttachment.type, 'article', 'attachment is exported as "article"');
    272 			assert.equal(cslJSONAttachment.title, 'Empty', 'attachment title is correct');
    273 			assert.deepEqual(cslJSONAttachment.accessed, {"date-parts":[["2001",2,3]]}, 'attachment access date is mapped correctly');
    274 		}));
    275 		it("should refuse to convert unexpected item types", Zotero.Promise.coroutine(function* () {
    276 			let data = yield populateDBWithSampleData(loadSampleData('journalArticle'));
    277 			let item = yield Zotero.Items.getAsync(data.journalArticle.id);
    278 			
    279 			let exportFormat = Zotero.Utilities.Internal.itemToExportFormat(item);
    280 			exportFormat.itemType = 'foo';
    281 			
    282 			assert.throws(Zotero.Utilities.itemToCSLJSON.bind(Zotero.Utilities, exportFormat), /^Unexpected Zotero Item type ".*"$/, 'throws an error when trying to map invalid item types');
    283 		}));
    284 		
    285 		it("should parse particles in creator names", function* () {
    286 			let creators = [
    287 				{
    288 					// No particles
    289 					firstName: 'John',
    290 					lastName: 'Smith',
    291 					creatorType: 'author',
    292 					expect: {
    293 						given: 'John',
    294 						family: 'Smith'
    295 					}
    296 				},
    297 				{
    298 					// dropping and non-dropping
    299 					firstName: 'Jean de',
    300 					lastName: 'la Fontaine',
    301 					creatorType: 'author',
    302 					expect: {
    303 						given: 'Jean',
    304 						"dropping-particle": 'de',
    305 						"non-dropping-particle": 'la',
    306 						family: 'Fontaine'
    307 					}
    308 				},
    309 				{
    310 					// only non-dropping
    311 					firstName: 'Vincent',
    312 					lastName: 'van Gogh',
    313 					creatorType: 'author',
    314 					expect: {
    315 						given: 'Vincent',
    316 						"non-dropping-particle": 'van',
    317 						family: 'Gogh'
    318 					}
    319 				},
    320 				{
    321 					// only dropping
    322 					firstName: 'Alexander von',
    323 					lastName: 'Humboldt',
    324 					creatorType: 'author',
    325 					expect: {
    326 						given: 'Alexander',
    327 						"dropping-particle": 'von',
    328 						family: 'Humboldt'
    329 					}
    330 				},
    331 				{
    332 					// institutional author
    333 					lastName: 'Jean de la Fontaine',
    334 					creatorType: 'author',
    335 					fieldMode: 1,
    336 					expect: {
    337 						literal: 'Jean de la Fontaine'
    338 					}
    339 				},
    340 				{
    341 					// protected last name
    342 					firstName: 'Jean de',
    343 					lastName: '"la Fontaine"',
    344 					creatorType: 'author',
    345 					expect: {
    346 						given: 'Jean de',
    347 						family: 'la Fontaine'
    348 					}
    349 				}
    350 			];
    351 			
    352 			let data = yield populateDBWithSampleData({
    353 				item: {
    354 					itemType: 'journalArticle',
    355 					creators: creators
    356 				}
    357 			});
    358 				
    359 			let item = Zotero.Items.get(data.item.id);
    360 			let cslCreators = Zotero.Utilities.itemToCSLJSON(item).author;
    361 			
    362 			assert.deepEqual(cslCreators[0], creators[0].expect, 'simple name is not parsed');
    363 			assert.deepEqual(cslCreators[1], creators[1].expect, 'name with dropping and non-dropping particles is parsed');
    364 			assert.deepEqual(cslCreators[2], creators[2].expect, 'name with only non-dropping particle is parsed');
    365 			assert.deepEqual(cslCreators[3], creators[3].expect, 'name with only dropping particle is parsed');
    366 			assert.deepEqual(cslCreators[4], creators[4].expect, 'institutional author is not parsed');
    367 			assert.deepEqual(cslCreators[5], creators[5].expect, 'protected last name prevents parsing');
    368 		});
    369 	});
    370 	describe("itemFromCSLJSON", function () {
    371 		it("should stably perform itemToCSLJSON -> itemFromCSLJSON -> itemToCSLJSON", function* () {
    372 			this.timeout(10000);
    373 			let data = loadSampleData('citeProcJSExport');
    374 			
    375 			for (let i in data) {
    376 				let json = data[i];
    377 				
    378 				let item = new Zotero.Item();
    379 				Zotero.Utilities.itemFromCSLJSON(item, json);
    380 				yield item.saveTx();
    381 				
    382 				let newJSON = Zotero.Utilities.itemToCSLJSON(item);
    383 				
    384 				delete newJSON.id;
    385 				delete json.id;
    386 				
    387 				assert.deepEqual(newJSON, json, i + ' export -> import -> export is stable');
    388 			}
    389 			
    390 		});
    391 		it("should import exported standalone note", function* () {
    392 			let note = new Zotero.Item('note');
    393 			note.setNote('Some note longer than 50 characters, which will become the title.');
    394 			yield note.saveTx();
    395 			
    396 			let jsonNote = Zotero.Utilities.itemToCSLJSON(note);
    397 			
    398 			let item = new Zotero.Item();
    399 			Zotero.Utilities.itemFromCSLJSON(item, jsonNote);
    400 			
    401 			assert.equal(item.getField('title'), jsonNote.title, 'title imported correctly');
    402 		});
    403 		it("should import exported standalone attachment", function* () {
    404 			let attachment = yield importFileAttachment("empty.pdf");
    405 			attachment.setField('title', 'Empty');
    406 			attachment.setField('accessDate', '2001-02-03 12:13:14');
    407 			attachment.setField('url', 'http://example.com');
    408 			attachment.setNote('Note');
    409 			yield attachment.saveTx();
    410 			
    411 			let jsonAttachment = Zotero.Utilities.itemToCSLJSON(attachment);
    412 			
    413 			let item = new Zotero.Item();
    414 			Zotero.Utilities.itemFromCSLJSON(item, jsonAttachment);
    415 			
    416 			assert.equal(item.getField('title'), jsonAttachment.title, 'title imported correctly');
    417 		});
    418 		// For Zotero.Item created in translation sandbox in connectors
    419 		it("should not depend on Zotero.Item existing", function* () {
    420 			let item = new Zotero.Item;
    421 			var Item = Zotero.Item;
    422 			delete Zotero.Item;
    423 			assert.throws(() => "" instanceof Zotero.Item);
    424 
    425 			let data = loadSampleData('citeProcJSExport');
    426 			assert.doesNotThrow(Zotero.Utilities.itemFromCSLJSON.bind(Zotero.Utilities, item, Object.values(data)[0]));
    427 			
    428 			Zotero.Item = Item;
    429 			assert.doesNotThrow(() => "" instanceof Zotero.Item);
    430 		})
    431 	});
    432 	
    433 	describe("#ellipsize()", function () {
    434 		describe("with wordBoundary", function () {
    435 			it("should truncate at word boundary", function* () {
    436 				assert.equal(Zotero.Utilities.ellipsize("abc def ghi", 3, true), "abc…");
    437 			});
    438 			
    439 			it("should trim whitespace after word boundary", function* () {
    440 				assert.equal(Zotero.Utilities.ellipsize("abc def ghi", 4, true), "abc…");
    441 			});
    442 			
    443 			it("should trim characters after word boundary", function () {
    444 				assert.equal(Zotero.Utilities.ellipsize("abc def ghi", 5, true), "abc…");
    445 			});
    446 			
    447 			it("should truncate in the middle of a word", function () {
    448 				assert.equal(Zotero.Utilities.ellipsize("abcdefghi", 6, true), "abcdef…");
    449 			});
    450 			
    451 			it("should truncate at word boundary with previous space within radius", function () {
    452 				assert.equal(Zotero.Utilities.ellipsize("abc def ghi", 7, true), "abc def…");
    453 			});
    454 			
    455 			it("should return string as is if shorter than length", function () {
    456 				assert.equal(Zotero.Utilities.ellipsize("abcdefg", 8, true), "abcdefg");
    457 			});
    458 			
    459 			it("should return string as is if equal to length", function () {
    460 				assert.equal(Zotero.Utilities.ellipsize("abcdefgh", 8, true), "abcdefgh");
    461 			});
    462 		});
    463 	});
    464 });