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angular-cn/modules/angular2/test/compiler/html_lexer_spec.ts

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import {
ddescribe,
describe,
it,
iit,
xit,
expect,
beforeEach,
afterEach
} from 'angular2/testing_internal';
import {BaseException} from 'angular2/src/facade/exceptions';
import {
tokenizeHtml,
HtmlToken,
HtmlTokenType,
HtmlTokenError
} from 'angular2/src/compiler/html_lexer';
import {ParseSourceSpan, ParseLocation, ParseSourceFile} from 'angular2/src/compiler/parse_util';
export function main() {
describe('HtmlLexer', () => {
describe('line/column numbers', () => {
it('should work without newlines', () => {
expect(tokenizeAndHumanizeLineColumn('<t>a</t>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, '0:0'],
[HtmlTokenType.TAG_OPEN_END, '0:2'],
[HtmlTokenType.TEXT, '0:3'],
[HtmlTokenType.TAG_CLOSE, '0:4'],
[HtmlTokenType.EOF, '0:8']
]);
});
it('should work with one newline', () => {
expect(tokenizeAndHumanizeLineColumn('<t>\na</t>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, '0:0'],
[HtmlTokenType.TAG_OPEN_END, '0:2'],
[HtmlTokenType.TEXT, '0:3'],
[HtmlTokenType.TAG_CLOSE, '1:1'],
[HtmlTokenType.EOF, '1:5']
]);
});
it('should work with multiple newlines', () => {
expect(tokenizeAndHumanizeLineColumn('<t\n>\na</t>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, '0:0'],
[HtmlTokenType.TAG_OPEN_END, '1:0'],
[HtmlTokenType.TEXT, '1:1'],
[HtmlTokenType.TAG_CLOSE, '2:1'],
[HtmlTokenType.EOF, '2:5']
]);
});
});
describe('comments', () => {
it('should parse comments', () => {
expect(tokenizeAndHumanizeParts('<!--test-->'))
.toEqual([
[HtmlTokenType.COMMENT_START],
[HtmlTokenType.RAW_TEXT, 'test'],
[HtmlTokenType.COMMENT_END],
[HtmlTokenType.EOF]
]);
});
it('should store the locations', () => {expect(tokenizeAndHumanizeSourceSpans('<!--test-->'))
.toEqual([
[HtmlTokenType.COMMENT_START, '<!--'],
[HtmlTokenType.RAW_TEXT, 'test'],
[HtmlTokenType.COMMENT_END, '-->'],
[HtmlTokenType.EOF, '']
])});
it('should report <!- without -', () => {
expect(tokenizeAndHumanizeErrors('<!-a'))
.toEqual([[HtmlTokenType.COMMENT_START, 'Unexpected character "a"', '0:3']]);
});
it('should report missing end comment', () => {
expect(tokenizeAndHumanizeErrors('<!--'))
.toEqual([[HtmlTokenType.RAW_TEXT, 'Unexpected character "EOF"', '0:4']]);
});
});
describe('doctype', () => {
it('should parse doctypes', () => {
expect(tokenizeAndHumanizeParts('<!doctype html>'))
.toEqual([[HtmlTokenType.DOC_TYPE, 'doctype html'], [HtmlTokenType.EOF]]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans('<!doctype html>'))
.toEqual([[HtmlTokenType.DOC_TYPE, '<!doctype html>'], [HtmlTokenType.EOF, '']]);
});
it('should report missing end doctype', () => {
expect(tokenizeAndHumanizeErrors('<!'))
.toEqual([[HtmlTokenType.DOC_TYPE, 'Unexpected character "EOF"', '0:2']]);
});
});
describe('cdata', () => {
it('should parse cdata', () => {
expect(tokenizeAndHumanizeParts('<![cdata[test]]>'))
.toEqual([
[HtmlTokenType.CDATA_START],
[HtmlTokenType.RAW_TEXT, 'test'],
[HtmlTokenType.CDATA_END],
[HtmlTokenType.EOF]
]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans('<![cdata[test]]>'))
.toEqual([
[HtmlTokenType.CDATA_START, '<![cdata['],
[HtmlTokenType.RAW_TEXT, 'test'],
[HtmlTokenType.CDATA_END, ']]>'],
[HtmlTokenType.EOF, '']
]);
});
it('should report <![ without cdata[', () => {
expect(tokenizeAndHumanizeErrors('<![a'))
.toEqual([[HtmlTokenType.CDATA_START, 'Unexpected character "a"', '0:3']]);
});
it('should report missing end cdata', () => {
expect(tokenizeAndHumanizeErrors('<![cdata['))
.toEqual([[HtmlTokenType.RAW_TEXT, 'Unexpected character "EOF"', '0:9']]);
});
});
describe('open tags', () => {
it('should parse open tags without prefix', () => {
expect(tokenizeAndHumanizeParts('<test>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'test'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse namespace prefix', () => {
expect(tokenizeAndHumanizeParts('<ns1:test>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, 'ns1', 'test'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse void tags', () => {
expect(tokenizeAndHumanizeParts('<test/>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'test'],
[HtmlTokenType.TAG_OPEN_END_VOID],
[HtmlTokenType.EOF]
]);
});
it('should allow whitespace', () => {
expect(tokenizeAndHumanizeParts('< test >'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'test'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans('<test>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, '<test'],
[HtmlTokenType.TAG_OPEN_END, '>'],
[HtmlTokenType.EOF, '']
]);
});
it('should report missing name after <', () => {
expect(tokenizeAndHumanizeErrors('<'))
.toEqual([[HtmlTokenType.TAG_OPEN_START, 'Unexpected character "EOF"', '0:1']]);
});
it('should report missing >', () => {
expect(tokenizeAndHumanizeErrors('<name'))
.toEqual([[HtmlTokenType.TAG_OPEN_START, 'Unexpected character "EOF"', '0:5']]);
});
});
describe('attributes', () => {
it('should parse attributes without prefix', () => {
expect(tokenizeAndHumanizeParts('<t a>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, 'a'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse attributes with prefix', () => {
expect(tokenizeAndHumanizeParts('<t ns1:a>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, 'ns1', 'a'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse attributes whose prefix is not valid', () => {
expect(tokenizeAndHumanizeParts('<t (ns1:a)>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, '(ns1:a)'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse attributes with single quote value', () => {
expect(tokenizeAndHumanizeParts("<t a='b'>"))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, 'a'],
[HtmlTokenType.ATTR_VALUE, 'b'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse attributes with double quote value', () => {
expect(tokenizeAndHumanizeParts('<t a="b">'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, 'a'],
[HtmlTokenType.ATTR_VALUE, 'b'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse attributes with unquoted value', () => {
expect(tokenizeAndHumanizeParts('<t a=b>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, 'a'],
[HtmlTokenType.ATTR_VALUE, 'b'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should allow whitespace', () => {
expect(tokenizeAndHumanizeParts('<t a = b >'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, 'a'],
[HtmlTokenType.ATTR_VALUE, 'b'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse attributes with entities in values', () => {
expect(tokenizeAndHumanizeParts('<t a="&#65;&#x41;">'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, 'a'],
[HtmlTokenType.ATTR_VALUE, 'AA'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should not decode entities without trailing ";"', () => {
expect(tokenizeAndHumanizeParts('<t a="&amp" b="c&&d">'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, 'a'],
[HtmlTokenType.ATTR_VALUE, '&amp'],
[HtmlTokenType.ATTR_NAME, null, 'b'],
[HtmlTokenType.ATTR_VALUE, 'c&&d'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should parse attributes with "&" in values', () => {
expect(tokenizeAndHumanizeParts('<t a="b && c &">'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 't'],
[HtmlTokenType.ATTR_NAME, null, 'a'],
[HtmlTokenType.ATTR_VALUE, 'b && c &'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.EOF]
]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans('<t a=b>'))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, '<t'],
[HtmlTokenType.ATTR_NAME, 'a'],
[HtmlTokenType.ATTR_VALUE, 'b'],
[HtmlTokenType.TAG_OPEN_END, '>'],
[HtmlTokenType.EOF, '']
]);
});
it('should report missing value after =', () => {
expect(tokenizeAndHumanizeErrors('<name a='))
.toEqual([[HtmlTokenType.ATTR_VALUE, 'Unexpected character "EOF"', '0:8']]);
});
it('should report missing end quote for \'', () => {
expect(tokenizeAndHumanizeErrors('<name a=\''))
.toEqual([[HtmlTokenType.ATTR_VALUE, 'Unexpected character "EOF"', '0:9']]);
});
it('should report missing end quote for "', () => {
expect(tokenizeAndHumanizeErrors('<name a="'))
.toEqual([[HtmlTokenType.ATTR_VALUE, 'Unexpected character "EOF"', '0:9']]);
});
});
describe('closing tags', () => {
it('should parse closing tags without prefix', () => {
expect(tokenizeAndHumanizeParts('</test>'))
.toEqual([[HtmlTokenType.TAG_CLOSE, null, 'test'], [HtmlTokenType.EOF]]);
});
it('should parse closing tags with prefix', () => {
expect(tokenizeAndHumanizeParts('</ns1:test>'))
.toEqual([[HtmlTokenType.TAG_CLOSE, 'ns1', 'test'], [HtmlTokenType.EOF]]);
});
it('should allow whitespace', () => {
expect(tokenizeAndHumanizeParts('</ test >'))
.toEqual([[HtmlTokenType.TAG_CLOSE, null, 'test'], [HtmlTokenType.EOF]]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans('</test>'))
.toEqual([[HtmlTokenType.TAG_CLOSE, '</test>'], [HtmlTokenType.EOF, '']]);
});
it('should report missing name after </', () => {
expect(tokenizeAndHumanizeErrors('</'))
.toEqual([[HtmlTokenType.TAG_CLOSE, 'Unexpected character "EOF"', '0:2']]);
});
it('should report missing >', () => {
expect(tokenizeAndHumanizeErrors('</test'))
.toEqual([[HtmlTokenType.TAG_CLOSE, 'Unexpected character "EOF"', '0:6']]);
});
});
describe('entities', () => {
it('should parse named entities', () => {
expect(tokenizeAndHumanizeParts('a&amp;b'))
.toEqual([[HtmlTokenType.TEXT, 'a&b'], [HtmlTokenType.EOF]]);
});
it('should parse hexadecimal entities', () => {
expect(tokenizeAndHumanizeParts('&#x41;'))
.toEqual([[HtmlTokenType.TEXT, 'A'], [HtmlTokenType.EOF]]);
});
it('should parse decimal entities', () => {
expect(tokenizeAndHumanizeParts('&#65;'))
.toEqual([[HtmlTokenType.TEXT, 'A'], [HtmlTokenType.EOF]]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans('a&amp;b'))
.toEqual([[HtmlTokenType.TEXT, 'a&amp;b'], [HtmlTokenType.EOF, '']]);
});
it('should report malformed/unknown entities', () => {
expect(tokenizeAndHumanizeErrors('&tbo;'))
.toEqual([
[
HtmlTokenType.TEXT,
'Unknown entity "tbo" - use the "&#<decimal>;" or "&#x<hex>;" syntax',
'0:0'
]
]);
expect(tokenizeAndHumanizeErrors('&#asdf;'))
.toEqual([[HtmlTokenType.TEXT, 'Unexpected character "s"', '0:3']]);
expect(tokenizeAndHumanizeErrors('&#xasdf;'))
.toEqual([[HtmlTokenType.TEXT, 'Unexpected character "s"', '0:4']]);
expect(tokenizeAndHumanizeErrors('&#xABC'))
.toEqual([[HtmlTokenType.TEXT, 'Unexpected character "EOF"', '0:6']]);
});
});
describe('regular text', () => {
it('should parse text', () => {
expect(tokenizeAndHumanizeParts('a'))
.toEqual([[HtmlTokenType.TEXT, 'a'], [HtmlTokenType.EOF]]);
});
it('should parse entities', () => {
expect(tokenizeAndHumanizeParts('a&amp;b'))
.toEqual([[HtmlTokenType.TEXT, 'a&b'], [HtmlTokenType.EOF]]);
});
it('should parse text starting with "&"', () => {
expect(tokenizeAndHumanizeParts('a && b &'))
.toEqual([[HtmlTokenType.TEXT, 'a && b &'], [HtmlTokenType.EOF]]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans('a'))
.toEqual([[HtmlTokenType.TEXT, 'a'], [HtmlTokenType.EOF, '']]);
});
});
describe('raw text', () => {
it('should parse text', () => {
expect(tokenizeAndHumanizeParts(`<script>a</script>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'script'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.RAW_TEXT, 'a'],
[HtmlTokenType.TAG_CLOSE, null, 'script'],
[HtmlTokenType.EOF]
]);
});
it('should not detect entities', () => {
expect(tokenizeAndHumanizeParts(`<script>&amp;</script>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'script'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.RAW_TEXT, '&amp;'],
[HtmlTokenType.TAG_CLOSE, null, 'script'],
[HtmlTokenType.EOF]
]);
});
it('should ignore other opening tags', () => {
expect(tokenizeAndHumanizeParts(`<script>a<div></script>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'script'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.RAW_TEXT, 'a<div>'],
[HtmlTokenType.TAG_CLOSE, null, 'script'],
[HtmlTokenType.EOF]
]);
});
it('should ignore other closing tags', () => {
expect(tokenizeAndHumanizeParts(`<script>a</test></script>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'script'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.RAW_TEXT, 'a</test>'],
[HtmlTokenType.TAG_CLOSE, null, 'script'],
[HtmlTokenType.EOF]
]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans(`<script>a</script>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, '<script'],
[HtmlTokenType.TAG_OPEN_END, '>'],
[HtmlTokenType.RAW_TEXT, 'a'],
[HtmlTokenType.TAG_CLOSE, '</script>'],
[HtmlTokenType.EOF, '']
]);
});
});
describe('escapable raw text', () => {
it('should parse text', () => {
expect(tokenizeAndHumanizeParts(`<title>a</title>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'title'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.ESCAPABLE_RAW_TEXT, 'a'],
[HtmlTokenType.TAG_CLOSE, null, 'title'],
[HtmlTokenType.EOF]
]);
});
it('should detect entities', () => {
expect(tokenizeAndHumanizeParts(`<title>&amp;</title>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'title'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.ESCAPABLE_RAW_TEXT, '&'],
[HtmlTokenType.TAG_CLOSE, null, 'title'],
[HtmlTokenType.EOF]
]);
});
it('should ignore other opening tags', () => {
expect(tokenizeAndHumanizeParts(`<title>a<div></title>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'title'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.ESCAPABLE_RAW_TEXT, 'a<div>'],
[HtmlTokenType.TAG_CLOSE, null, 'title'],
[HtmlTokenType.EOF]
]);
});
it('should ignore other closing tags', () => {
expect(tokenizeAndHumanizeParts(`<title>a</test></title>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, null, 'title'],
[HtmlTokenType.TAG_OPEN_END],
[HtmlTokenType.ESCAPABLE_RAW_TEXT, 'a</test>'],
[HtmlTokenType.TAG_CLOSE, null, 'title'],
[HtmlTokenType.EOF]
]);
});
it('should store the locations', () => {
expect(tokenizeAndHumanizeSourceSpans(`<title>a</title>`))
.toEqual([
[HtmlTokenType.TAG_OPEN_START, '<title'],
[HtmlTokenType.TAG_OPEN_END, '>'],
[HtmlTokenType.ESCAPABLE_RAW_TEXT, 'a'],
[HtmlTokenType.TAG_CLOSE, '</title>'],
[HtmlTokenType.EOF, '']
]);
});
});
describe('errors', () => {
it('should include 2 lines of context in message', () => {
let src = "111\n222\n333\nE\n444\n555\n666\n";
let file = new ParseSourceFile(src, 'file://');
let location = new ParseLocation(file, 12, 123, 456);
let error = new HtmlTokenError('**ERROR**', null, location);
expect(error.toString())
.toEqual(`**ERROR** ("\n222\n333\n[ERROR ->]E\n444\n555\n"): file://@123:456`);
});
});
});
}
function tokenizeWithoutErrors(input: string): HtmlToken[] {
var tokenizeResult = tokenizeHtml(input, 'someUrl');
if (tokenizeResult.errors.length > 0) {
var errorString = tokenizeResult.errors.join('\n');
throw new BaseException(`Unexpected parse errors:\n${errorString}`);
}
return tokenizeResult.tokens;
}
function tokenizeAndHumanizeParts(input: string): any[] {
return tokenizeWithoutErrors(input).map(token => [<any>token.type].concat(token.parts));
}
function tokenizeAndHumanizeSourceSpans(input: string): any[] {
return tokenizeWithoutErrors(input).map(token => [<any>token.type, token.sourceSpan.toString()]);
}
function humanizeLineColumn(location: ParseLocation): string {
return `${location.line}:${location.col}`;
}
function tokenizeAndHumanizeLineColumn(input: string): any[] {
return tokenizeWithoutErrors(input)
.map(token => [<any>token.type, humanizeLineColumn(token.sourceSpan.start)]);
}
function tokenizeAndHumanizeErrors(input: string): any[] {
return tokenizeHtml(input, 'someUrl')
.errors.map(
tokenError =>
[<any>tokenError.tokenType, tokenError.msg, humanizeLineColumn(tokenError.location)]);
}
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