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<?php |
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namespace Vlaswinkel\UnitConverter\Parser\Tests; |
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use PHPUnit\Framework\TestCase; |
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use Vlaswinkel\UnitConverter\Parser\InputStream; |
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use Vlaswinkel\UnitConverter\Parser\Lexer; |
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use Vlaswinkel\UnitConverter\Parser\Operator; |
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use Vlaswinkel\UnitConverter\Parser\Token; |
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/** |
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* Class LexerTest |
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* |
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* @author Koen Vlaswinkel <[email protected]> |
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* @package Vlaswinkel\UnitConverter\Tests |
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*/ |
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class LexerTest extends TestCase { |
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public function testDigit() { |
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$lexer = $this->createLexer('2'); |
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$this->assertEquals(new Token(Token::TYPE_DIGIT, '2'), $lexer->next()); |
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$this->assertTrue($lexer->eof()); |
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} |
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public function testSingleUnit() { |
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$lexer = $this->createLexer('kg'); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'kg'), $lexer->next()); |
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$this->assertTrue($lexer->eof()); |
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} |
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public function testSingleUnitWithWhitespace() { |
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$lexer = $this->createLexer(" m \t\n"); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'm'), $lexer->next()); |
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$this->assertTrue($lexer->eof()); |
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} |
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View Code Duplication |
public function testMultipliedUnits() { |
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$lexer = $this->createLexer('N * m'); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'N'), $lexer->next()); |
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$this->assertEquals(new Operator('*', 1), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'm'), $lexer->next()); |
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$this->assertTrue($lexer->eof()); |
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} |
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View Code Duplication |
public function testDividedUnits() { |
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$lexer = $this->createLexer('m/s'); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'm'), $lexer->next()); |
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$this->assertEquals(new Operator('/', 1), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 's'), $lexer->next()); |
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$this->assertTrue($lexer->eof()); |
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} |
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View Code Duplication |
public function testExponentialUnit() { |
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$lexer = $this->createLexer('m^2'); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'm'), $lexer->next()); |
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$this->assertEquals(new Operator('^', 2), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_DIGIT, '2'), $lexer->next()); |
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$this->assertTrue($lexer->eof()); |
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} |
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public function testExponentialUnits() { |
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$lexer = $this->createLexer('m^2/s'); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'm'), $lexer->next()); |
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$this->assertEquals(new Operator('^', 2), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_DIGIT, '2'), $lexer->next()); |
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$this->assertEquals(new Operator('/', 1), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 's'), $lexer->next()); |
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$this->assertTrue($lexer->eof()); |
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} |
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public function testOhm() { |
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$lexer = $this->createLexer('kg*m^2*s^-3*A^-2'); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'kg'), $lexer->next()); |
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$this->assertEquals(new Operator('*', 1), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'm'), $lexer->next()); |
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$this->assertEquals(new Operator('^', 2), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_DIGIT, '2'), $lexer->next()); |
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$this->assertEquals(new Operator('*', 1), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 's'), $lexer->next()); |
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$this->assertEquals(new Operator('^', 2), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_DIGIT, '-3'), $lexer->next()); |
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$this->assertEquals(new Operator('*', 1), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_UNIT, 'A'), $lexer->next()); |
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$this->assertEquals(new Operator('^', 2), $lexer->next()); |
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$this->assertEquals(new Token(Token::TYPE_DIGIT, '-2'), $lexer->next()); |
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$this->assertTrue($lexer->eof()); |
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} |
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private function createLexer(string $expression): Lexer { |
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return new Lexer(new InputStream($expression)); |
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} |
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} |
koesie10 /
UnitConverter
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.