fenom/tests/cases/Fenom/TokenizerTest.php

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<?php
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namespace Fenom;
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use Fenom\Error\UnexpectedTokenException;
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use Fenom\Tokenizer;
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class TokenizerTest extends \PHPUnit_Framework_TestCase
{
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public function testTokens()
{
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$code = 'hello, please resolve this example: sin($x)+tan($x*$t) = {U|[0,1]}';
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$tokens = new Tokenizer($code);
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$this->assertSame(27, $tokens->count());
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$this->assertSame($tokens, $tokens->back());
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$this->assertSame(T_STRING, $tokens->key());
$this->assertSame("hello", $tokens->current());
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$this->assertSame(1, $tokens->getLine());
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$this->assertTrue($tokens->isNext(","));
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$this->assertFalse($tokens->isNext("="));
$this->assertFalse($tokens->isNext(T_STRING));
$this->assertFalse($tokens->isNext($tokens::MACRO_UNARY));
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$this->assertFalse($tokens->isNext("=", T_STRING, $tokens::MACRO_UNARY));
$this->assertTrue($tokens->isNext("=", T_STRING, $tokens::MACRO_UNARY, ","));
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$this->assertSame(",", $tokens->getNext());
$this->assertSame(",", $tokens->key());
$this->assertSame("please", $tokens->getNext(T_STRING));
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$this->assertSame(array(
T_STRING,
'please',
' ',
1,
'T_STRING'
), $tokens->curr);
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$this->assertSame("resolve", $tokens->getNext($tokens::MACRO_UNARY, T_STRING));
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$tokens->next();
$tokens->next();
$tokens->next();
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$this->assertSame(":", $tokens->current());
$this->assertSame(":", $tokens->key());
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$this->assertSame("sin", $tokens->getNext($tokens::MACRO_STRING));
$this->assertSame("sin", $tokens->current());
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$this->assertTrue($tokens->isPrev(":"));
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$this->assertSame(T_STRING, $tokens->key());
$this->assertTrue($tokens->is(T_STRING));
$this->assertTrue($tokens->is($tokens::MACRO_STRING));
$this->assertFalse($tokens->is($tokens::MACRO_EQUALS));
$this->assertFalse($tokens->is(T_DNUMBER));
$this->assertFalse($tokens->is(":"));
$this->assertSame("(", $tokens->getNext("(", ")"));
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$this->assertTrue($tokens->hasBackList(T_STRING, ':'));
$this->assertFalse($tokens->hasBackList(T_LNUMBER, ':'));
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$tokens->next();
$tokens->next();
$this->assertSame("+", $tokens->getNext($tokens::MACRO_BINARY));
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$this->assertSame($code, $tokens->getSnippetAsString(-100, 100));
$this->assertSame('+', $tokens->getSnippetAsString(100, -100));
$this->assertSame('sin($x)+tan($x*$t)', $tokens->getSnippetAsString(-4, 6));
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}
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public function testSkip()
{
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$text = "1 foo: bar ( 3 + double ) ";
$tokens = new Tokenizer($text);
$tokens->skip()->skip(T_STRING)->skip(':');
try {
$tokens->skip(T_STRING)->skip('(')->skip(':');
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} catch (\Exception $e) {
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$this->assertInstanceOf('Fenom\Error\UnexpectedTokenException', $e);
$this->assertStringStartsWith("Unexpected token '3' in expression, expect ':'", $e->getMessage());
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}
$this->assertTrue($tokens->valid());
$this->assertSame("3", $tokens->current());
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$this->assertSame(T_LNUMBER, $tokens->key());
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$this->assertSame($tokens, $tokens->next());
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$tokens->next();
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$this->assertSame("double", $tokens->getAndNext());
$this->assertSame(")", $tokens->current());
$this->assertTrue($tokens->isLast());
$this->assertSame($tokens, $tokens->next());
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$tokens->p = 1000;
$this->assertSame($tokens, $tokens->next());
$tokens->p = -1000;
$this->assertSame($tokens, $tokens->back());
$this->assertNull($tokens->undef);
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}
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}