328 lines
16 KiB
PHP
328 lines
16 KiB
PHP
<?php
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namespace Masterminds\HTML5\Tests\Parser;
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use Masterminds\HTML5\Parser\StringInputStream;
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class StringInputStreamTest extends \Masterminds\HTML5\Tests\TestCase
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{
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/**
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* A canary test to make sure the basics are setup and working.
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*/
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public function testConstruct()
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{
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$s = new StringInputStream("abc");
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$this->assertInstanceOf('\Masterminds\HTML5\Parser\StringInputStream', $s);
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}
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public function testNext()
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{
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$s = new StringInputStream("abc");
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$s->next();
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$this->assertEquals('b', $s->current());
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$s->next();
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$this->assertEquals('c', $s->current());
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}
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public function testKey()
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{
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$s = new StringInputStream("abc");
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$this->assertEquals(0, $s->key());
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$s->next();
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$this->assertEquals(1, $s->key());
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}
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public function testPeek()
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{
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$s = new StringInputStream("abc");
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$this->assertEquals('b', $s->peek());
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$s->next();
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$this->assertEquals('c', $s->peek());
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}
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public function testCurrent()
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{
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$s = new StringInputStream("abc");
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// Before scanning the string begins the current is empty.
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$this->assertEquals('a', $s->current());
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$s->next();
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$this->assertEquals('b', $s->current());
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// Test movement through the string.
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$s->next();
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$this->assertEquals('c', $s->current());
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}
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public function testColumnOffset()
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{
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$s = new StringInputStream("abc\ndef\n");
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$this->assertEquals(0, $s->columnOffset());
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$s->next();
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$this->assertEquals(1, $s->columnOffset());
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$s->next();
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$this->assertEquals(2, $s->columnOffset());
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$s->next();
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$this->assertEquals(3, $s->columnOffset());
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$s->next(); // LF
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$this->assertEquals(0, $s->columnOffset());
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$s->next();
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$canary = $s->current(); // e
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$this->assertEquals('e', $canary);
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$this->assertEquals(1, $s->columnOffset());
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$s = new StringInputStream("abc");
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$this->assertEquals(0, $s->columnOffset());
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$s->next();
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$this->assertEquals(1, $s->columnOffset());
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$s->next();
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$this->assertEquals(2, $s->columnOffset());
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}
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public function testCurrentLine()
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{
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$txt = "1\n2\n\n\n\n3";
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$stream = new StringInputStream($txt);
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$this->assertEquals(1, $stream->currentLine());
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// Advance over 1 and LF on to line 2 value 2.
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$stream->next();
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$stream->next();
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$canary = $stream->current();
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$this->assertEquals(2, $stream->currentLine());
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$this->assertEquals('2', $canary);
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// Advance over 4x LF
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$stream->next();
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$stream->next();
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$stream->next();
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$stream->next();
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$stream->next();
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$this->assertEquals(6, $stream->currentLine());
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$this->assertEquals('3', $stream->current());
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// Make sure it doesn't do 7.
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$this->assertEquals(6, $stream->currentLine());
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}
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public function testRemainingChars()
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{
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$text = "abcd";
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$s = new StringInputStream($text);
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$this->assertEquals($text, $s->remainingChars());
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$text = "abcd";
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$s = new StringInputStream($text);
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$s->next(); // Pop one.
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$this->assertEquals('bcd', $s->remainingChars());
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}
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public function testCharsUnitl()
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{
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$text = "abcdefffffffghi";
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$s = new StringInputStream($text);
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$this->assertEquals('', $s->charsUntil('a'));
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// Pointer at 'a', moves 2 to 'c'
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$this->assertEquals('ab', $s->charsUntil('w', 2));
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// Pointer at 'c', moves to first 'f'
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$this->assertEquals('cde', $s->charsUntil('fzxv'));
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// Only get five 'f's
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$this->assertEquals('fffff', $s->charsUntil('g', 5));
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// Get just the last two 'f's
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$this->assertEquals('ff', $s->charsUntil('g'));
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// This should scan to the end.
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$this->assertEquals('ghi', $s->charsUntil('w', 9));
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}
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public function testCharsWhile()
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{
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$text = "abcdefffffffghi";
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$s = new StringInputStream($text);
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$this->assertEquals('ab', $s->charsWhile('ba'));
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$this->assertEquals('', $s->charsWhile('a'));
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$this->assertEquals('cde', $s->charsWhile('cdeba'));
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$this->assertEquals('ff', $s->charsWhile('f', 2));
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$this->assertEquals('fffff', $s->charsWhile('f'));
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$this->assertEquals('g', $s->charsWhile('fg'));
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$this->assertEquals('hi', $s->charsWhile('fghi', 99));
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}
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public function testBOM()
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{
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// Ignore in-text BOM.
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$stream = new StringInputStream("a\xEF\xBB\xBF");
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$this->assertEquals("a\xEF\xBB\xBF", $stream->remainingChars(), 'A non-leading U+FEFF (BOM/ZWNBSP) should remain');
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// Strip leading BOM
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$leading = new StringInputStream("\xEF\xBB\xBFa");
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$this->assertEquals('a', $leading->current(), 'BOM should be stripped');
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}
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public function testCarriageReturn()
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{
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// Replace NULL with Unicode replacement.
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$stream = new StringInputStream("\0\0\0");
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$this->assertEquals("\xEF\xBF\xBD\xEF\xBF\xBD\xEF\xBF\xBD", $stream->remainingChars(), 'Null character should be replaced by U+FFFD');
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$this->assertEquals(3, count($stream->errors), 'Null character should set parse error: ' . print_r($stream->errors, true));
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// Remove CR when next to LF.
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$stream = new StringInputStream("\r\n");
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$this->assertEquals("\n", $stream->remainingChars(), 'CRLF should be replaced by LF');
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// Convert CR to LF when on its own.
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$stream = new StringInputStream("\r");
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$this->assertEquals("\n", $stream->remainingChars(), 'CR should be replaced by LF');
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}
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public function invalidParseErrorTestHandler($input, $numErrors, $name)
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{
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$stream = new StringInputStream($input, 'UTF-8');
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$this->assertEquals($input, $stream->remainingChars(), $name . ' (stream content)');
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$this->assertEquals($numErrors, count($stream->errors), $name . ' (number of errors)');
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}
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public function testInvalidReplace()
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{
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$invalidTest = array(
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// Min/max overlong
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"\xC0\x80a" => 'Overlong representation of U+0000',
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"\xE0\x80\x80a" => 'Overlong representation of U+0000',
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"\xF0\x80\x80\x80a" => 'Overlong representation of U+0000',
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"\xF8\x80\x80\x80\x80a" => 'Overlong representation of U+0000',
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"\xFC\x80\x80\x80\x80\x80a" => 'Overlong representation of U+0000',
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"\xC1\xBFa" => 'Overlong representation of U+007F',
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"\xE0\x9F\xBFa" => 'Overlong representation of U+07FF',
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"\xF0\x8F\xBF\xBFa" => 'Overlong representation of U+FFFF',
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"a\xDF" => 'Incomplete two byte sequence (missing final byte)',
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"a\xEF\xBF" => 'Incomplete three byte sequence (missing final byte)',
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"a\xF4\xBF\xBF" => 'Incomplete four byte sequence (missing final byte)',
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// Min/max continuation bytes
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"a\x80" => 'Lone 80 continuation byte',
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"a\xBF" => 'Lone BF continuation byte',
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// Invalid bytes (these can never occur)
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"a\xFE" => 'Invalid FE byte',
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"a\xFF" => 'Invalid FF byte'
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);
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foreach ($invalidTest as $test => $note) {
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$stream = new StringInputStream($test);
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$this->assertEquals('a', $stream->remainingChars(), $note);
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}
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// MPB:
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// It appears that iconv just leaves these alone. Not sure what to
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// do.
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/*
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* $converted = array( "a\xF5\x90\x80\x80" => 'U+110000, off unicode planes.', ); foreach ($converted as $test => $note) { $stream = new StringInputStream($test); $this->assertEquals(2, mb_strlen($stream->remainingChars()), $note); }
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*/
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}
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public function testInvalidParseError()
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{
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// C0 controls (except U+0000 and U+000D due to different handling)
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$this->invalidParseErrorTestHandler("\x01", 1, 'U+0001 (C0 control)');
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$this->invalidParseErrorTestHandler("\x02", 1, 'U+0002 (C0 control)');
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$this->invalidParseErrorTestHandler("\x03", 1, 'U+0003 (C0 control)');
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$this->invalidParseErrorTestHandler("\x04", 1, 'U+0004 (C0 control)');
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$this->invalidParseErrorTestHandler("\x05", 1, 'U+0005 (C0 control)');
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$this->invalidParseErrorTestHandler("\x06", 1, 'U+0006 (C0 control)');
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$this->invalidParseErrorTestHandler("\x07", 1, 'U+0007 (C0 control)');
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$this->invalidParseErrorTestHandler("\x08", 1, 'U+0008 (C0 control)');
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$this->invalidParseErrorTestHandler("\x09", 0, 'U+0009 (C0 control)');
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$this->invalidParseErrorTestHandler("\x0A", 0, 'U+000A (C0 control)');
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$this->invalidParseErrorTestHandler("\x0B", 1, 'U+000B (C0 control)');
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$this->invalidParseErrorTestHandler("\x0C", 0, 'U+000C (C0 control)');
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$this->invalidParseErrorTestHandler("\x0E", 1, 'U+000E (C0 control)');
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$this->invalidParseErrorTestHandler("\x0F", 1, 'U+000F (C0 control)');
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$this->invalidParseErrorTestHandler("\x10", 1, 'U+0010 (C0 control)');
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$this->invalidParseErrorTestHandler("\x11", 1, 'U+0011 (C0 control)');
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$this->invalidParseErrorTestHandler("\x12", 1, 'U+0012 (C0 control)');
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$this->invalidParseErrorTestHandler("\x13", 1, 'U+0013 (C0 control)');
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$this->invalidParseErrorTestHandler("\x14", 1, 'U+0014 (C0 control)');
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$this->invalidParseErrorTestHandler("\x15", 1, 'U+0015 (C0 control)');
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$this->invalidParseErrorTestHandler("\x16", 1, 'U+0016 (C0 control)');
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$this->invalidParseErrorTestHandler("\x17", 1, 'U+0017 (C0 control)');
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$this->invalidParseErrorTestHandler("\x18", 1, 'U+0018 (C0 control)');
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$this->invalidParseErrorTestHandler("\x19", 1, 'U+0019 (C0 control)');
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$this->invalidParseErrorTestHandler("\x1A", 1, 'U+001A (C0 control)');
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$this->invalidParseErrorTestHandler("\x1B", 1, 'U+001B (C0 control)');
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$this->invalidParseErrorTestHandler("\x1C", 1, 'U+001C (C0 control)');
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$this->invalidParseErrorTestHandler("\x1D", 1, 'U+001D (C0 control)');
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$this->invalidParseErrorTestHandler("\x1E", 1, 'U+001E (C0 control)');
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$this->invalidParseErrorTestHandler("\x1F", 1, 'U+001F (C0 control)');
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// DEL (U+007F)
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$this->invalidParseErrorTestHandler("\x7F", 1, 'U+007F');
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// C1 Controls
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$this->invalidParseErrorTestHandler("\xC2\x80", 1, 'U+0080 (C1 control)');
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$this->invalidParseErrorTestHandler("\xC2\x9F", 1, 'U+009F (C1 control)');
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$this->invalidParseErrorTestHandler("\xC2\xA0", 0, 'U+00A0 (first codepoint above highest C1 control)');
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// Charcters surrounding surrogates
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$this->invalidParseErrorTestHandler("\xED\x9F\xBF", 0, 'U+D7FF (one codepoint below lowest surrogate codepoint)');
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$this->invalidParseErrorTestHandler("\xEF\xBF\xBD", 0, 'U+DE00 (one codepoint above highest surrogate codepoint)');
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// Permanent noncharacters
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$this->invalidParseErrorTestHandler("\xEF\xB7\x90", 1, 'U+FDD0 (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xEF\xB7\xAF", 1, 'U+FDEF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xEF\xBF\xBE", 1, 'U+FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xEF\xBF\xBF", 1, 'U+FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF0\x9F\xBF\xBE", 1, 'U+1FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF0\x9F\xBF\xBF", 1, 'U+1FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF0\xAF\xBF\xBE", 1, 'U+2FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF0\xAF\xBF\xBF", 1, 'U+2FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF0\xBF\xBF\xBE", 1, 'U+3FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF0\xBF\xBF\xBF", 1, 'U+3FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF1\x8F\xBF\xBE", 1, 'U+4FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF1\x8F\xBF\xBF", 1, 'U+4FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF1\x9F\xBF\xBE", 1, 'U+5FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF1\x9F\xBF\xBF", 1, 'U+5FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF1\xAF\xBF\xBE", 1, 'U+6FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF1\xAF\xBF\xBF", 1, 'U+6FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF1\xBF\xBF\xBE", 1, 'U+7FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF1\xBF\xBF\xBF", 1, 'U+7FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF2\x8F\xBF\xBE", 1, 'U+8FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF2\x8F\xBF\xBF", 1, 'U+8FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF2\x9F\xBF\xBE", 1, 'U+9FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF2\x9F\xBF\xBF", 1, 'U+9FFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF2\xAF\xBF\xBE", 1, 'U+AFFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF2\xAF\xBF\xBF", 1, 'U+AFFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF2\xBF\xBF\xBE", 1, 'U+BFFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF2\xBF\xBF\xBF", 1, 'U+BFFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF3\x8F\xBF\xBE", 1, 'U+CFFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF3\x8F\xBF\xBF", 1, 'U+CFFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF3\x9F\xBF\xBE", 1, 'U+DFFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF3\x9F\xBF\xBF", 1, 'U+DFFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF3\xAF\xBF\xBE", 1, 'U+EFFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF3\xAF\xBF\xBF", 1, 'U+EFFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF3\xBF\xBF\xBE", 1, 'U+FFFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF3\xBF\xBF\xBF", 1, 'U+FFFFF (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF4\x8F\xBF\xBE", 1, 'U+10FFFE (permanent noncharacter)');
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$this->invalidParseErrorTestHandler("\xF4\x8F\xBF\xBF", 1, 'U+10FFFF (permanent noncharacter)');
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// MPB: These pass on some versions of iconv, and fail on others. Since we aren't in the
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// business of writing tests against iconv, I've just commented these out. Should revisit
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// at a later point.
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/*
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* $this->invalidParseErrorTestHandler("\xED\xA0\x80", 1, 'U+D800 (UTF-16 surrogate character)'); $this->invalidParseErrorTestHandler("\xED\xAD\xBF", 1, 'U+DB7F (UTF-16 surrogate character)'); $this->invalidParseErrorTestHandler("\xED\xAE\x80", 1, 'U+DB80 (UTF-16 surrogate character)'); $this->invalidParseErrorTestHandler("\xED\xAF\xBF", 1, 'U+DBFF (UTF-16 surrogate character)'); $this->invalidParseErrorTestHandler("\xED\xB0\x80", 1, 'U+DC00 (UTF-16 surrogate character)'); $this->invalidParseErrorTestHandler("\xED\xBE\x80", 1, 'U+DF80 (UTF-16 surrogate character)'); $this->invalidParseErrorTestHandler("\xED\xBF\xBF", 1, 'U+DFFF (UTF-16 surrogate character)'); // Paired UTF-16 surrogates $this->invalidParseErrorTestHandler("\xED\xA0\x80\xED\xB0\x80", 2, 'U+D800 U+DC00 (paired UTF-16 surrogates)'); $this->invalidParseErrorTestHandler("\xED\xA0\x80\xED\xBF\xBF", 2, 'U+D800 U+DFFF (paired UTF-16 surrogates)'); $this->invalidParseErrorTestHandler("\xED\xAD\xBF\xED\xB0\x80", 2, 'U+DB7F U+DC00 (paired UTF-16 surrogates)'); $this->invalidParseErrorTestHandler("\xED\xAD\xBF\xED\xBF\xBF", 2, 'U+DB7F U+DFFF (paired UTF-16 surrogates)'); $this->invalidParseErrorTestHandler("\xED\xAE\x80\xED\xB0\x80", 2, 'U+DB80 U+DC00 (paired UTF-16 surrogates)'); $this->invalidParseErrorTestHandler("\xED\xAE\x80\xED\xBF\xBF", 2, 'U+DB80 U+DFFF (paired UTF-16 surrogates)'); $this->invalidParseErrorTestHandler("\xED\xAF\xBF\xED\xB0\x80", 2, 'U+DBFF U+DC00 (paired UTF-16 surrogates)'); $this->invalidParseErrorTestHandler("\xED\xAF\xBF\xED\xBF\xBF", 2, 'U+DBFF U+DFFF (paired UTF-16 surrogates)');
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*/
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}
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}
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