edu.ucsb.cs56.pconrad.parsing.parser

Class ParserTest

java.lang.Object

edu.ucsb.cs56.pconrad.parsing.parser.ParserTest

public class ParserTest
extends Object

Tests the code in Parser. Specifically, this ensures that we properly go from lists of Tokens to ASTs.

See Also:

Parser, Token, AST

Field Summary

Fields

Modifier and Type	Field and Description
org.junit.rules.ExpectedException	thrown

Constructor Summary

Constructors

Constructor and Description
ParserTest()

Method Summary

Modifier and Type	Method and Description
static AST	parse(String input) Convenience method to tokenize and parse the given input
AST	parseExpectFailure(String input)
static AST	parseNoException(String input) Like parse, but it does not throw any annotated exceptions.
void	testInvalidDoubleNumber()
void	testMissingSecondOperand()
void	testMissingSecondOperandInParens()
void	testParseAdd()
void	testParseNum()
void	testParseParensBinop()
void	testParseParensLiteral()
void	testPrecedenceHigherFirst()
void	testPrecedenceParensApplyRight()
void	testUnaryMinusLiteral()
void	testUnaryMinusNonMinusBinop()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

thrown

public org.junit.rules.ExpectedException thrown

Constructor Detail

ParserTest

public ParserTest()

Method Detail

parse

public static AST parse(String input)
                 throws TokenizerException,
                        ParserException

Convenience method to tokenize and parse the given input

Parameters:

input - The expression to be evaluated, as a string

Returns:

An abstract syntax tree for that expression

Throws:

TokenizerException - if there is a token error

ParserException - if there is a parsing error

parseNoException

public static AST parseNoException(String input)

Like parse, but it does not throw any annotated exceptions. This is to avoid repeatedly annotating tests to throw exceptions. Internally, if tokenizing or parsing input throws either a TokenizerException or a ParserException, this will trigger test failure.

Parameters:

input - The expression to be evaluated, as a string

Returns:

An abstract syntax tree for that expression

testParseNum

public void testParseNum()

testParseAdd

public void testParseAdd()

testParseParensLiteral

public void testParseParensLiteral()

testParseParensBinop

public void testParseParensBinop()

testPrecedenceHigherFirst

public void testPrecedenceHigherFirst()

testPrecedenceParensApplyRight

public void testPrecedenceParensApplyRight()

testUnaryMinusLiteral

public void testUnaryMinusLiteral()

testUnaryMinusNonMinusBinop

public void testUnaryMinusNonMinusBinop()

parseExpectFailure

public AST parseExpectFailure(String input)
                       throws TokenizerException,
                              ParserException

Throws:

TokenizerException

ParserException

testInvalidDoubleNumber

public void testInvalidDoubleNumber()
                             throws TokenizerException,
                                    ParserException

Throws:

TokenizerException

ParserException

testMissingSecondOperand

public void testMissingSecondOperand()
                              throws TokenizerException,
                                     ParserException

Throws:

TokenizerException

ParserException

testMissingSecondOperandInParens

public void testMissingSecondOperandInParens()
                                      throws TokenizerException,
                                             ParserException

Throws:

TokenizerException

ParserException