/**
* @expectedException \Tbm\Peval\EvaluationException
*/
public function testInvalidBooleanExpressionException()
{
/*
* These tests involve invalid expressions.
*/
$evaluator = new Evaluator();
$evaluator->evaluate1(new String("3 3 < 3"));
$evaluator->evaluate1(new String("3 << 3"));
$evaluator->evaluate1(new String("3 <> 4"));
$evaluator->evaluate1(new String("!!(3 <> 4)"));
$evaluator->evaluate1(new String("3 = 4"));
$evaluator->evaluate1(new String("2 < 3 && 1 = 1"));
$evaluator->evaluate1(new String("(3) (3 < 3)"));
$evaluator->evaluate1(new String("3 (<<) 3"));
$evaluator->evaluate1(new String("(2 < 3) && (1 = 1"));
}
/**
* @expectedException Tbm\Peval\EvaluationException
*/
public function testInvalidMathExpressionException()
{
/*
* These tests involve invalid expressions.
*/
$evaluator = new Evaluator();
$evaluator->evaluate1(new String("-"));
$evaluator->evaluate1(new String("4 + "));
$evaluator->evaluate1(new String("4 - "));
$evaluator->evaluate1(new String("4 + -"));
$evaluator->evaluate1(new String("--4"));
$evaluator->evaluate1(new String("4 * / 3"));
$evaluator->evaluate1(new String("* 3"));
$evaluator->evaluate1(new String("((4"));
$evaluator->evaluate1(new String("4 ("));
$evaluator->evaluate1(new String("(4))"));
$evaluator->evaluate1(new String("((4 + 3)) * 2)"));
$evaluator->evaluate1(new String("4 ()"));
$evaluator->evaluate1(new String("4 (+) 3"));
}
public function testCharAtFunction()
{
$evaluator = new Evaluator();
$this->assertEquals("'s'", $evaluator->evaluate1(new String("charAt('test', 2)")));
$this->assertEquals("'A'", $evaluator->evaluate1(new String("'A'")));
}
/**
* Test expressions containing string operations.
*/
public function testEvaluateStringOperations()
{
$evaluator = new Evaluator();
try {
/*
* These tests involve valid expressions.
*/
//$this->assertEquals("'A'", $evaluator->evaluate1(new String("'A'")));
$this->assertEquals("'AC'", $evaluator->evaluate1(new String("'A' + 'C'")));
$this->assertEquals("'A + C'", $evaluator->evaluate1(new String("'A + C'")));
$this->assertEquals("'ABC'", $evaluator->evaluate1(new String("'AB' + 'C'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("'A' < 'C'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_FALSE, $evaluator->evaluate1(new String("'C' < 'A'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("'C' < 'F'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("'C' < 'c'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_FALSE, $evaluator->evaluate1(new String("'c' < 'C'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_FALSE, $evaluator->evaluate1(new String("'A' > 'C'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("'C' > 'A'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_FALSE, $evaluator->evaluate1(new String("'C' > 'F'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("'A' <= 'A'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_FALSE, $evaluator->evaluate1(new String("'C' <= 'A'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("'C' <= 'F'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("'A' >= 'A'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("'C' >= 'A'")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_FALSE, $evaluator->evaluate1(new String("'C' >= 'F'")));
$this->assertEquals("'A'", $evaluator->evaluate1(new String("('A')")));
$this->assertEquals("'ABC'", $evaluator->evaluate1(new String("('AB' + 'C')")));
$this->assertEquals("'123ABC'", $evaluator->evaluate1(new String("'123' + ('AB' + 'C')")));
$this->assertEquals(EvaluationConstants . BOOLEAN_STRING_TRUE, $evaluator->evaluate1(new String("(('C' >= 'A'))")));
} catch (Exception $e) {
throw new Exception($e);
}
}
/**
* This method process nested function calls that may be in the arguments
* passed into a higher level function.
*
* @param String|\Tbm\Peval\Types\String $arguments
*
* @throws \Tbm\Peval\EvaluationException
* @return \Tbm\Peval\Types\String The arguments with any nested function calls evaluated.
*
*/
public function processNestedFunctions(string $arguments)
{
$evaluatedArguments = new String();
// Process nested function calls.
if ($arguments->length() > 0) {
$argumentsEvaluator = new Evaluator($this->quoteCharacter, $this->loadMathVariables, $this->loadMathFunctions, $this->loadStringFunctions, $this->processNestedFunctions);
$this->argumentsEvaluator->setFunctions(getFunctions());
$this->argumentsEvaluator->setVariables(getVariables());
$this->argumentsEvaluator->setVariableResolver(getVariableResolver());
$tokenizer = new ArgumentTokenizer($arguments, EvaluationConstants::FUNCTION_ARGUMENT_SEPARATOR);
$evaluatedArgumentList = new ArrayList();
while ($tokenizer . hasMoreTokens()) {
$argument = $tokenizer->nextToken()->trim();
try {
$argument = $argumentsEvaluator->evaluate1($argument);
} catch (Exception $e) {
throw new EvaluationException($e->getMessage(), $e);
}
$evaluatedArgumentList->add($argument);
}
$evaluatedArgumentIterator = $evaluatedArgumentList->iterator();
while ($evaluatedArgumentIterator->valid()) {
if ($evaluatedArguments->length() > 0) {
$evaluatedArguments->append(EvaluationConstants::FUNCTION_ARGUMENT_SEPARATOR);
}
$evaluatedArgumentIterator->next();
$evaluatedArgument = (string) $evaluatedArgumentIterator->current();
$evaluatedArguments . append($evaluatedArgument);
}
}
return $evaluatedArguments;
}