gshute.ioutil
Class Tester

java.lang.Object
  |
  +--gshute.ioutil.Tester

Direct Known Subclasses:

CircularListTester, DictionaryTester, DispenserTester, FormattingTester, RandomAccessTester, SearchTreeTester, TableTester

public class Tester

extends java.lang.Object

Class Tester is a base class for line-oriented, command-driven, interactive and batch testing.

Field Summary

protected LineStream	commandStream commandStream is the LineStream from which this Tester reads commands.
protected CommandTable	commandTable commandTable is the table of Commands that this Tester can execute.
protected java.lang.String	prompt prompt is the prompt that this Tester uses for interactive input.

Constructor Summary

Tester()
Tester() returns a new Tester.

Method Summary

void	addCommands() addCommands() adds testing commands to the command table.
void	doCommands() doCommands() executes commands from the command stream.
static void	main(java.lang.String[] args) If this program is executed with no command line argument then it executes commands entered from the terminal.
void	openStream(java.lang.String[] args) openStream(args) checks the command line for a correct number of arguments and opens a source file if specified.
void	startInteractive() startInteractive() prints messages to the interactive user describing how to use the program.

Methods inherited from class java.lang.Object

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

Field Detail

commandStream

protected LineStream commandStream

commandStream is the LineStream from which this Tester reads commands.

commandTable

protected CommandTable commandTable

commandTable is the table of Commands that this Tester can execute.

prompt

protected java.lang.String prompt

prompt is the prompt that this Tester uses for interactive input.

Constructor Detail

Tester

public Tester()

Tester() returns a new Tester.

Method Detail

addCommands

public void addCommands()

addCommands() adds testing commands to the command table.

startInteractive

public void startInteractive()

startInteractive() prints messages to the interactive user describing how to use the program.

openStream

public void openStream(java.lang.String[] args)
                throws java.io.FileNotFoundException,
                       java.io.IOException

openStream(args) checks the command line for a correct number of arguments and opens a source file if specified.

doCommands

public void doCommands()
                throws java.io.IOException

doCommands() executes commands from the command stream.

main

public static void main(java.lang.String[] args)
                 throws java.io.FileNotFoundException,
                        java.io.IOException

If this program is executed with no command line argument then it executes commands entered from the terminal. If this program is executed with a single command-line argument then that argument is interpreted as a file name. The program attempts to open the named file and execute the commands in it. If the open fails, or if there is more than one command-line argument, then the program terminates with an error message.