CommandLineParserTest.java
From Andrey
Revision as of 22:31, 22 October 2011; view current revision
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package com.taitl.world.commandline;
import java.util.List;
import junit.framework.TestCase;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/*
* Copyright 2011 Taitl Design. All rights reserved.
*/
/**
* Tests for CommandLineParser class.
*
* @author Andrey Potekhin
*
*/
public class CommandLineParserTest extends TestCase
{
CommandLineParser commandLineParser = null;
CommandLineParser newCommandLineParser = null;
// Error strings
static final String MISSING_EXCEPTION = "Exception not thrown where it should";
static final String ERRONEOUS_EXCEPTION = "Exception thrown where it shouldn't";
// Trivial command lines
static final String cmdlineNULL = null;
static final String cmdlineEmpty = "";
static final String cmdlineUsage = "--prev --usage --next";
static final String cmdlineVersion = "--prev --version --next";
static final String cmdlineHelp = "--prev --help --next";
static final String cmdlineHelpWithArgument = "--prev --help general --next";
// Values of switches
static final String cmdlineNoValue = "--novalue --next";
static final String cmdlineOneValue = "--onevalue val --next";
static final String cmdlineOneValueOnEnd = "--prev --onevalue val";
static final String cmdlineTwoValues = "--twovalues val1 val2 --next";
static final String cmdlineTwoValuesOnEnd = "--prev --twovalues val1 val2";
static final String cmdlineThreeValues = "--threevalues val1 val2 val3 --next";
static final String cmdlineThreeValuesOnEnd = "--prev --threevalues val1 val2 val3";
static final String cmdlineOneToThree = "--prev --onetothree val1 val2 --next";
static final String cmdlineOneToThreeTooFew = "--prev --onetothree --next";
static final String cmdlineOneToThreeTooMany = "--prev --onetothree val1 val2 val3 val4 --next";
// Multiple values of a switch
static final String cmdlineMultiValues = "--prev --multi val1 val2 val3 val4 val5 --next";
static final String cmdlineMultiValuesOnEnd = "--prev --multi val1 val2 val3 val4 val5";
static final String cmdlineMany = "--prev --many val1 val2 \"val3\" val4 val5 val6 --next";
static final String cmdlineManyTooFew = "--prev --many val1 \"val2\" --next";
// Default switch
static final String cmdlineImplicitSwitch = "--prev file.txt --next";
static final String cmdlineImplicitSwitchTooManyValues = "--prev file.txt file2.txt --next";
// Quoted arguments
static final String cmdlineQuote = "--prev --onevalue \"val1 --next val2 val3\" --next";
// Switchless arguments
static final String cmdlineSwitchlessArguments1 = "--prev file1.txt --next file2.txt file3.txt file4.txt";
static final String cmdlineSwitchlessArguments2 = "file1.txt --prev file2.txt file3.txt --next file4.txt";
static final String possibleSwitches = "--usage(0) --version(0) --help(0-1) --prev(0) --next(0)"
+ " --novalue(0) --onevalue(1) --twovalues(2) --threevalues(3) --onetothree(1-3)"
+ " --multi(*) --many(3-*)";
static final String possibleThreeSwitches = "--prev(0) --next(0) --onevalue(1)";
static final String incorrectPossibleSwitches1 = "--usage";
static final String incorrectPossibleSwitches2 = "--usage(?)";
static final String incorrectPossibleSwitches3 = "--usage(3-2)";
static final String incorrectPossibleSwitches4 = "--usage[0]";
static final String implicitSwitch = "--file(1)";
static final String implicitSwitchAlternative = "--file";
/** Sets up test class object. */
@Override
@Before
public void setUp() throws Exception
{
commandLineParser = new CommandLineParser();
commandLineParser.setPossibleSwitches(possibleSwitches);
commandLineParser.setImplicitSwitch(implicitSwitch);
newCommandLineParser = new CommandLineParser(); // Not to be initialized
}
/**
* Performs cleanup of objects created in setUp() method.
*
* @throws Exception
* An exception to indicate problems during tear-down.
*/
@Override
@After
public void tearDown() throws Exception
{
commandLineParser = null;
}
/*
* Trivial tests
*/
/** */
@Test
public final void testCommandLineParser()
{
assertFalse(commandLineParser.isInitialized());
}
/** */
@Test
public final void testSetPossibleSwitches()
{
commandLineParser.setPossibleSwitches(possibleThreeSwitches);
final int requiredNumberOfSwitches = 3;
assertEquals(requiredNumberOfSwitches, commandLineParser
.getPossibleSwitches().size());
}
/** */
@Test
public final void testSetCommandLine()
{
commandLineParser.setCommandLine(cmdlineUsage);
assertEquals(cmdlineUsage, commandLineParser.getOriginalCommandLine());
}
/** */
@Test
public final void testSetArguments()
{
String commandLine;
String[] arguments;
arguments = new String[] { "--prev", "--usage", "--next" };
commandLineParser.setArguments(arguments);
assertEquals("--prev --usage --next",
commandLineParser.getOriginalCommandLine());
arguments = new String[] { "--prev", "--usage",
"usagevalue1 usagevalue2", "--next" };
commandLineParser.setArguments(arguments);
commandLine = commandLineParser.getOriginalCommandLine();
assertEquals("--prev --usage \"usagevalue1 usagevalue2\" --next",
commandLine);
arguments = commandLineParser.getArguments();
assertTrue(arguments.length == 4);
}
/** */
@Test
public final void testParse()
{
// String[] arguments = new String[] { "--prev", "--usage", "--next" };
// commandLineParser.setCommandLine(cmdlineUsage); // Calls parse()
// method
// assertTrue(commandLineParser.isInitialized());
newCommandLineParser.setPossibleSwitches(possibleSwitches);
// Try parsing without specifying command line arguments
try
{
newCommandLineParser.parse();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException ise)
{
}
try
{
newCommandLineParser.doParsing(null);
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException ise)
{
}
newCommandLineParser.setCommandLine(cmdlineUsage);
assertTrue(newCommandLineParser.isInitialized());
}
/** */
@Test
public final void testGetArguments()
{
commandLineParser.setCommandLine(cmdlineQuote);
String[] arguments = commandLineParser.getArguments();
assertTrue(arguments.length == 4);
}
/** */
@Test
public final void testAddPossibleSwitch()
{
commandLineParser.setPossibleSwitches(possibleThreeSwitches);
assertTrue(commandLineParser.isPossibleSwitch("--prev"));
assertFalse(commandLineParser.isPossibleSwitch("--usage"));
// Try adding a malformed switch
try
{
commandLineParser.addPossibleSwitch("--usage");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
commandLineParser.addPossibleSwitch("--usage(0)");
assertTrue(commandLineParser.isPossibleSwitch("--usage"));
}
/** */
@Test
public final void testRemovePossibleSwitch()
{
commandLineParser.setPossibleSwitches(possibleThreeSwitches);
// Try removing a non-existing switch
try
{
commandLineParser.removePossibleSwitch("--nonexisting");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Remove switch with fully-specified name (including cardinality)
commandLineParser.removePossibleSwitch("--next(0)");
int requiredNumberOfSwitches = 2;
assertEquals(requiredNumberOfSwitches, commandLineParser
.getPossibleSwitches().size());
// Try removing a malformed switch
try
{
commandLineParser.removePossibleSwitch("--prev(0");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Try removing a malformed switch
try
{
commandLineParser.removePossibleSwitch("--prev0)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Remove switch with omitted cardinality
commandLineParser.removePossibleSwitch("--prev");
requiredNumberOfSwitches = 1;
assertEquals(requiredNumberOfSwitches, commandLineParser
.getPossibleSwitches().size());
}
/** */
@Test
public final void testIsSwitchPresent()
{
commandLineParser.setCommandLine(cmdlineUsage);
assertTrue(commandLineParser.isSwitchPresent(commandLineParser
.getUsageSwitchName()));
assertFalse(commandLineParser.isSwitchPresent(commandLineParser
.getHelpSwitchName()));
}
/** */
@Test
public final void testGetSwitchValue()
{
String switchValue = null;
commandLineParser.setCommandLine(cmdlineNoValue);
assertTrue(commandLineParser.isSwitchPresent("--novalue"));
assertTrue(commandLineParser.isSwitchPresent("--next"));
assertFalse(commandLineParser.isSwitchPresent("--prev"));
try
{
commandLineParser.getSwitchValue("--prev");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
switchValue = commandLineParser.getSwitchValue("--novalue");
assertEquals(switchValue, "");
commandLineParser.setCommandLine(cmdlineOneValue);
assertTrue(commandLineParser.isSwitchPresent("--onevalue"));
switchValue = commandLineParser.getSwitchValue("--onevalue");
assertEquals(switchValue, "val");
commandLineParser.setCommandLine(cmdlineOneValueOnEnd);
assertTrue(commandLineParser.isSwitchPresent("--onevalue"));
switchValue = commandLineParser.getSwitchValue("--onevalue");
assertEquals(switchValue, "val");
commandLineParser.setCommandLine(cmdlineTwoValues);
assertTrue(commandLineParser.isSwitchPresent("--twovalues"));
try
{
// An exception must be thrown if switch has more than one value
switchValue = commandLineParser.getSwitchValue("--twovalues");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
}
/** */
@Test
public final void testGetSwitchValues()
{
List<String> switchValues = null;
commandLineParser.setCommandLine(cmdlineNoValue);
assertTrue(commandLineParser.isSwitchPresent("--novalue"));
assertTrue(commandLineParser.isSwitchPresent("--next"));
assertFalse(commandLineParser.isSwitchPresent("--prev"));
switchValues = commandLineParser.getSwitchValues("--novalue");
assertEquals(switchValues.size(), 0);
commandLineParser.setCommandLine(cmdlineOneValue);
switchValues = commandLineParser.getSwitchValues("--onevalue");
assertEquals(switchValues.size(), 1);
commandLineParser.setCommandLine(cmdlineOneValueOnEnd);
assertEquals(switchValues.size(), 1);
commandLineParser.setCommandLine(cmdlineTwoValues);
switchValues = commandLineParser.getSwitchValues("--twovalues");
assertEquals(switchValues.size(), 2);
commandLineParser.setCommandLine(cmdlineTwoValuesOnEnd);
switchValues = commandLineParser.getSwitchValues("--twovalues");
assertEquals(switchValues.size(), 2);
commandLineParser.setCommandLine(cmdlineThreeValues);
switchValues = commandLineParser.getSwitchValues("--threevalues");
assertEquals(switchValues.size(), 3);
commandLineParser.setCommandLine(cmdlineThreeValuesOnEnd);
switchValues = commandLineParser.getSwitchValues("--threevalues");
assertEquals(switchValues.size(), 3);
commandLineParser.setCommandLine(cmdlineOneToThree);
switchValues = commandLineParser.getSwitchValues("--onetothree");
assertEquals(switchValues.size(), 2);
commandLineParser.setCommandLine(cmdlineMultiValues);
switchValues = commandLineParser.getSwitchValues("--multi");
assertTrue(switchValues.size() >= 4);
commandLineParser.setCommandLine(cmdlineMultiValuesOnEnd);
switchValues = commandLineParser.getSwitchValues("--multi");
assertTrue(switchValues.size() >= 4);
commandLineParser.setCommandLine(cmdlineMany);
switchValues = commandLineParser.getSwitchValues("--many");
assertTrue(switchValues.size() >= 4);
}
/** */
@Test
public final void testCreateSwitch()
{
Switch s;
s = commandLineParser.createSwitch("--prev(0)");
assertTrue(s != null && s.getMinValues() == 0 && s.getMaxValues() == 0);
// Now try creating the switch by only specifying its name - without
// cardinality
s = commandLineParser.createSwitch("--prev");
assertTrue(s != null && s.getMinValues() == 0 && s.getMaxValues() == 0);
// Attempt to redefine cardinality of existing switch ("--prev(0)")
try
{
commandLineParser.addPossibleSwitch("--prev(1)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Try creating a switch with malformed specification
try
{
commandLineParser.createSwitch("--prev(0");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
try
{
commandLineParser.createSwitch("--prev0)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Try creating a switch with incorrect cardinality (different from
// what was specified in setPossibleSwitches()
try
{
commandLineParser.createSwitch("--prev(1)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Try creating a switch with incorrect cardinality (non-number)
try
{
commandLineParser.addPossibleSwitch("--myswitch1(x)");
commandLineParser.createSwitch("--myswitch1(x)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
try
{
commandLineParser.addPossibleSwitch("--myswitch2(1-x)");
commandLineParser.createSwitch("--myswitch2(1-x)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
try
{
commandLineParser.addPossibleSwitch("--myswitch3(x-100)");
commandLineParser.createSwitch("--myswitch3(x-100)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Try creating a switch which does not exist among possible switches
try
{
commandLineParser.createSwitch("--nonexisting(0)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
}
/*******************************
* Trivial tests
*******************************/
/** */
@Test
public final void testGetSwitchValueCount()
{
commandLineParser.setCommandLine(cmdlineThreeValues);
assertEquals(commandLineParser.getSwitchValueCount("--threevalues"), 3);
}
/** */
@Test
public final void testGetOriginalCommandLine()
{
commandLineParser.setCommandLine(cmdlineUsage);
assertEquals(cmdlineUsage, commandLineParser.getOriginalCommandLine());
}
/** */
@Test
public final void testIsUsageRequested()
{
commandLineParser.setCommandLine(cmdlineHelp);
assertFalse(commandLineParser.isUsageRequested());
commandLineParser.setCommandLine(cmdlineUsage);
assertTrue(commandLineParser.isUsageRequested());
}
/** */
@Test
public final void testIsHelpRequested()
{
commandLineParser.setCommandLine(cmdlineUsage);
assertFalse(commandLineParser.isHelpRequested());
commandLineParser.setCommandLine(cmdlineHelp);
assertTrue(commandLineParser.isHelpRequested());
}
/** */
@Test
public final void testIsVersionRequested()
{
commandLineParser.setCommandLine(cmdlineEmpty);
assertFalse(commandLineParser.isVersionRequested());
commandLineParser.setCommandLine(cmdlineVersion);
assertTrue(commandLineParser.isVersionRequested());
}
/** */
@Test
public final void testGetUsageSwitch()
{
commandLineParser.setUsageSwitchName("a");
assertEquals("a", commandLineParser.getUsageSwitchName());
}
/** */
@Test
public final void testSetUsageSwitch()
{
commandLineParser.setUsageSwitchName("a");
assertEquals("a", commandLineParser.getUsageSwitchName());
}
/** */
@Test
public final void testGetHelpSwitch()
{
commandLineParser.setHelpSwitchName("a");
assertEquals("a", commandLineParser.getHelpSwitchName());
}
/** */
@Test
public final void testSetHelpSwitch()
{
commandLineParser.setHelpSwitchName("a");
assertEquals("a", commandLineParser.getHelpSwitchName());
}
/** */
@Test
public final void testGetVersionSwitch()
{
commandLineParser.setVersionSwitchName("a");
assertEquals("a", commandLineParser.getVersionSwitchName());
}
/** */
@Test
public final void testSetVersionSwitch()
{
commandLineParser.setVersionSwitchName("a");
assertEquals("a", commandLineParser.getVersionSwitchName());
}
/** */
@Test
public final void testRequireInitialization()
{
try
{
newCommandLineParser.requireInitialization();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException iae)
{
}
try
{
newCommandLineParser.setPossibleSwitches(possibleSwitches);
newCommandLineParser.requireInitialization();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException iae)
{
}
try
{
// Specify erroneous command line to prevent parse() from completing
newCommandLineParser.setCommandLine(cmdlineUsage + " --unknown");
// newCommandLineParser.requireInitialization();
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
// fail(ERRONEOUS_EXCEPTION);
}
try
{
newCommandLineParser.requireInitialization();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException iae)
{
// fail(ERRONEOUS_EXCEPTION);
}
try
{
commandLineParser.requireInitialization();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException iae)
{
}
// Initialize
commandLineParser.setCommandLine(cmdlineUsage);
commandLineParser.parse();
try
{
commandLineParser.requireInitialization();
}
catch (IllegalStateException iae)
{
fail(ERRONEOUS_EXCEPTION);
}
}
/** */
@Test
public final void testForbidNullString()
{
try
{
commandLineParser.forbidNullString("", "No error message");
}
catch (IllegalArgumentException iae)
{
fail(ERRONEOUS_EXCEPTION);
}
try
{
commandLineParser.forbidNullString(null, "Error message");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
assertTrue(iae.getMessage().contains("Error message"));
}
}
/** */
@Test
public final void testForbidEmptyString()
{
try
{
commandLineParser.forbidEmptyString("Non-empty string",
"No error message");
}
catch (IllegalArgumentException iae)
{
fail(ERRONEOUS_EXCEPTION);
}
try
{
commandLineParser.forbidEmptyString(null, "Error message");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
assertTrue(iae.getMessage().contains("Error message"));
}
try
{
commandLineParser.forbidEmptyString("", "Error message");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
assertTrue(iae.getMessage().contains("Error message"));
}
}
/** */
@Test
public final void testForbid()
{
try
{
commandLineParser.forbid(false, "No error message");
}
catch (IllegalArgumentException iae)
{
fail(ERRONEOUS_EXCEPTION);
}
try
{
commandLineParser.forbid(true, "Error message");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
}
/** */
@Test
public final void testRemoveCardinality()
{
// String switchSpecification = "--next(1-10)";
// Null string
try
{
commandLineParser.removeCardinality(null);
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Forgotten left brace
try
{
commandLineParser.removeCardinality("--next(1-10");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Forgotten right brace
try
{
commandLineParser.removeCardinality("--next1-10)");
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
assertEquals(commandLineParser.removeCardinality("--next(1-10)"),
"--next");
// If cardinality is not specified, return unmodified string
assertEquals(commandLineParser.removeCardinality("--next"), "--next");
}
/*******************************
* Initialization sequence tests
*******************************/
/** */
@Test
public final void testInitSequence()
{
// Disallowed operations on an uninitialized command line parser
// Require setPossibleSwitches() before setCommandLine()
try
{
newCommandLineParser.setCommandLine(cmdlineUsage);
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException iae)
{
}
}
/** */
@Test
public final void testGetters()
{
CommandLineParser p = newCommandLineParser;
// Require setPossibleSwitches() before getPossibleSwitches()
try
{
p.getPossibleSwitches();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException ise)
{
}
// Require setImplicitSwitch() before getImplicitSwitch()
try
{
p.getImplicitSwitch();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException ise)
{
}
// Require setCommandLine() before getCommandLine()
try
{
p.getOriginalCommandLine();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException ise)
{
}
// Require setArguments() before getArguments()
try
{
p.getArguments();
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException ise)
{
}
p.setPossibleSwitches(possibleSwitches);
assertTrue(p.isPossibleSwitch("--prev"));
p.setImplicitSwitch("--file(1)");
assertEquals("--file", p.getImplicitSwitch());
p.setCommandLine(cmdlineOneValue);
assertEquals(cmdlineOneValue, p.getOriginalCommandLine());
assertEquals(p.getSwitchMap().size(), 2);
}
/*********************
* Less trivial tests
*********************/
/** Test command line with quotes in arguments */
@Test
public final void testDoubleQuotesInCommandLine()
{
String s;
s = "--onevalue \"val\" --next";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--onevalue"), "val");
s = "--onevalue \"val1 val2\" --next";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--onevalue"),
"val1 val2");
s = "--onevalue \"val1 --next val2\" --next";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--onevalue"),
"val1 --next val2");
s = "--onevalue \"val3 val4\"";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--onevalue"),
"val3 val4");
}
/** Test command line with several switch values per switch */
@Test
public final void testSwitchCardinality()
{
List<String> switchValues = null;
// Require an exception in case of too few switch values
try
{
commandLineParser.setCommandLine(cmdlineOneToThreeTooFew);
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
try
{
commandLineParser.setCommandLine(cmdlineManyTooFew);
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
// Require an exception in case of too many switch values
try
{
commandLineParser
.setCommandLine(cmdlineImplicitSwitchTooManyValues);
fail(MISSING_EXCEPTION);
}
catch (IllegalStateException iae)
{
String message = iae.getMessage();
assertTrue(message != null
&& message.contains("already has a value"));
assertTrue(message != null && message.contains("implicit"));
}
// In case of too many switch values, assure that the 'overflow' values
// get assigned to implicit switch and to switchless arguments:
commandLineParser.setCommandLine(cmdlineOneToThreeTooMany);
switchValues = commandLineParser.getSwitchValues("--onetothree");
assertTrue(switchValues.size() == 3);
String implicitSwitchValue = commandLineParser
.getSwitchValue(commandLineParser.getImplicitSwitch());
assertEquals(implicitSwitchValue, "val4");
String[] switchlessArguments = commandLineParser
.getSwitchlessArguments();
assertEquals(switchlessArguments[0], "val4");
commandLineParser.setCommandLine(cmdlineMany);
switchValues = commandLineParser.getSwitchValues("--many");
assertTrue(switchValues.size() == 6);
}
/** Test command line with a switch-less value */
@Test
public final void testSwitchlessValue()
{
String s;
s = "--onevalue val1 val2 --next";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--onevalue"), "val1");
assertEquals(commandLineParser.getSwitchValue(commandLineParser
.getImplicitSwitch()), "val2");
String[] switchlessArguments = commandLineParser
.getSwitchlessArguments();
assertEquals(switchlessArguments[0], "val2");
}
/** Test succession of command lines */
@Test
public final void testCommandLineSuccession()
{
String s;
s = "--onevalue val1 val2 --next";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--onevalue"), "val1");
assertEquals(commandLineParser.getSwitchValue(commandLineParser
.getImplicitSwitch()), "val2");
s = "--onevalue val3 val4 --next";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--onevalue"), "val3");
assertEquals(commandLineParser.getSwitchValue(commandLineParser
.getImplicitSwitch()), "val4");
}
/** Test succession of possible parameters */
@Test
public final void testSuccessionOfPossibleParameters()
{
String s;
commandLineParser.setPossibleSwitches("--one(1) --next(0)");
s = "--one val1 val2 --next";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--one"), "val1");
assertEquals(commandLineParser.getSwitchValue(commandLineParser
.getImplicitSwitch()), "val2");
commandLineParser.setPossibleSwitches("--another(1) --prev(0)");
// Require old switch to be invalid
try
{
s = "--another val3 val4 --next";
commandLineParser.setCommandLine(s);
fail(MISSING_EXCEPTION);
}
catch (IllegalArgumentException iae)
{
}
s = "--prev --another val3 val4";
commandLineParser.setCommandLine(s);
assertEquals(commandLineParser.getSwitchValue("--another"), "val3");
assertEquals(commandLineParser.getSwitchValue(commandLineParser
.getImplicitSwitch()), "val4");
}
}
