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draft/tests/ScannerTestCase.php

+<?php
+spl_autoload_register(array('Doctrine', 'autoload'));
+
+class Doctrine_Query_Scanner_TestCase extends Doctrine_UnitTestCase
+{
+    public function testScannerRecognizesIdentifierWithLengthOfOneCharacter()
+    {
+        $scanner = new Doctrine_Query_Scanner('u');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_IDENTIFIER, $token->getType());
+        $this->assertEquals('u', $token->getValue());
+    }
+
+    public function testScannerRecognizesIdentifierConsistingOfLetters()
+    {
+        $scanner = new Doctrine_Query_Scanner('someIdentifier');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_IDENTIFIER, $token->getType());
+        $this->assertEquals('someIdentifier', $token->getValue());
+    }
+
+    public function testScannerRecognizesIdentifierIncludingDigits()
+    {
+        $scanner = new Doctrine_Query_Scanner('s0m31d3nt1f13r');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_IDENTIFIER, $token->getType());
+        $this->assertEquals('s0m31d3nt1f13r', $token->getValue());
+    }
+
+    public function testScannerRecognizesIdentifierIncludingUnderscore()
+    {
+        $scanner = new Doctrine_Query_Scanner('some_identifier');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_IDENTIFIER, $token->getType());
+        $this->assertEquals('some_identifier', $token->getValue());
+    }
+
+    public function testScannerRecognizesDecimalInteger()
+    {
+        $scanner = new Doctrine_Query_Scanner('1234');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_NUMERIC, $token->getType());
+        $this->assertEquals(1234, $token->getValue());
+    }
+
+    public function testScannerRecognizesNegativeDecimalInteger()
+    {
+        $scanner = new Doctrine_Query_Scanner('-123');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_NUMERIC, $token->getType());
+        $this->assertEquals(-123, $token->getValue());
+    }
+
+    public function testScannerRecognizesFloat()
+    {
+        $scanner = new Doctrine_Query_Scanner('1.234');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_NUMERIC, $token->getType());
+        $this->assertEquals(1.234, $token->getValue());
+    }
+
+    public function testScannerRecognizesFloatWithExponent()
+    {
+        $scanner = new Doctrine_Query_Scanner('1.2e3');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_NUMERIC, $token->getType());
+        $this->assertEquals(1.2e3, $token->getValue());
+    }
+
+    public function testScannerRecognizesFloatWithNegativeExponent()
+    {
+        $scanner = new Doctrine_Query_Scanner('7E-10');
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_NUMERIC, $token->getType());
+        $this->assertEquals(7E-10, $token->getValue());
+    }
+
+    public function testScannerRecognizesStringContainingWhitespace()
+    {
+        $scanner = new Doctrine_Query_Scanner("'This is a string.'");
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_STRING, $token->getType());
+        $this->assertEquals("'This is a string.'", $token->getValue());
+    }
+
+    public function testScannerRecognizesStringContainingSingleQuotes()
+    {
+        $scanner = new Doctrine_Query_Scanner("'abc''defg'''");
+
+        $token = $scanner->scan();
+        $this->assertEquals(Doctrine_Query_Token::T_STRING, $token->getType());
+        $this->assertEquals("'abc''defg'''", $token->getValue());
+    }
+
+}