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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.system;
import junit.framework.TestCase;
public class CommandLineParserTestCase extends TestCase {
public void testParse1() {
String[] args = new String[] {"-d", "-f", "hello.txt"};
CommandLineParser parser = new CommandLineParser(args);
parser.addLegalBinarySwitch("-f");
parser.addLegalUnarySwitch("-d");
parser.parse();
assertNull(parser.getBinarySwitches().get("-g"));
assertFalse(parser.getUnarySwitches().contains("-e"));
assertEquals(parser.getBinarySwitches().get("-f"), "hello.txt");
assertTrue(parser.getUnarySwitches().contains("-d"));
assertFalse(parser.getArguments().contains("-d"));
assertFalse(parser.getArguments().contains("-f"));
assertFalse(parser.getArguments().contains("-hello.txt"));
assertEquals(parser.getArguments().size(), 0);
}
public void testParse2() {
String[] args = new String[] {"-d", "-f", "hello.txt", "-XX", "myName", "-o", "output file", "myLastField"};
CommandLineParser parser = new CommandLineParser("progname", args);
parser.setArgumentExplanation("Bla bla1");
parser.setExtendedHelpText("Bla bla blaaaaaaa bla2");
parser.addLegalBinarySwitch("-f");
parser.addLegalBinarySwitch("-o");
parser.addLegalUnarySwitch("-d");
parser.addLegalUnarySwitch("-XX");
parser.parse();
assertNull(parser.getBinarySwitches().get("-g"));
assertFalse(parser.getUnarySwitches().contains("-e"));
assertEquals(parser.getBinarySwitches().get("-f"), "hello.txt");
assertTrue(parser.getUnarySwitches().contains("-d"));
assertTrue(parser.getUnarySwitches().contains("-XX"));
assertEquals(parser.getBinarySwitches().get("-o"), "output file");
assertTrue(parser.getArguments().contains("myName"));
assertTrue(parser.getArguments().contains("myLastField"));
assertEquals(parser.getUnarySwitches().size(), 2);
assertEquals(parser.getBinarySwitches().size(), 2);
assertEquals(parser.getArguments().size(), 2);
assertEquals(parser.getArguments().get(0), "myName");
assertEquals(parser.getArguments().get(1), "myLastField");
assertEquals(parser.getUnarySwitches().get(0), "-d");
assertEquals(parser.getUnarySwitches().get(1), "-XX");
try {
parser.usageAndThrow();
fail("usageAndThrow didn't throw");
} catch (Exception e) {
assertTrue(e.getMessage().replaceAll("\n", "").matches(".*bla1.*"));
assertTrue(e.getMessage().replaceAll("\n", "").matches(".*bla2.*"));
}
}
public void testIllegal() {
String[] args = new String[] {"-d", "-f", "hello.txt", "-XX", "myName", "-o", "output file", "myLastField"};
CommandLineParser parser = new CommandLineParser(args);
parser.addLegalBinarySwitch("-f");
parser.addLegalBinarySwitch("-o");
parser.addLegalUnarySwitch("-d");
try {
parser.parse();
fail("Parse of cmd line with illegal arg worked");
} catch (IllegalArgumentException e) {
assertTrue(e.getMessage().startsWith("\nusage"));
}
args = new String[] {"-d", "-f", "hello.txt", "-XX", "myName", "-o", "output file", "myLastField"};
parser = new CommandLineParser(args);
parser.addLegalBinarySwitch("-f");
parser.addLegalUnarySwitch("-d");
parser.addLegalUnarySwitch("-XX");
try {
parser.parse();
fail("Parse of cmd line with illegal arg worked");
} catch (IllegalArgumentException e) {
assertTrue(e.getMessage().startsWith("\nusage"));
}
}
public void testRequired() {
String[] args1 = new String[] {"-d", "-f", "hello.txt", "-XX", "myName", "-o", "output file", "myLastField"};
String[] args2 = new String[] {"-XX", "myName", "-o", "output file", "myLastField"};
CommandLineParser parser = new CommandLineParser(args1);
parser.addLegalBinarySwitch("-f", "test1");
parser.addRequiredBinarySwitch("-o", "test2");
parser.addLegalUnarySwitch("-d", "test3");
parser.addLegalUnarySwitch("-XX", "test4");
parser.parse();
parser = new CommandLineParser(args2);
parser.addRequiredBinarySwitch("-o", "test2");
parser.addLegalUnarySwitch("-XX", "test4");
parser.parse();
assertEquals(parser.getBinarySwitches().size(),1);
assertEquals(parser.getUnarySwitches().size(),1);
parser = new CommandLineParser(args2);
parser.addLegalUnarySwitch("-XX", "test4");
parser.addRequiredBinarySwitch("-f", "test5");
parser.addRequiredBinarySwitch("-o", "test6");
try {
parser.parse();
fail("Illegal cmd line parsed");
} catch (Exception e) {
assertTrue(e.getMessage().startsWith("\nusage"));
}
args1 = new String[] {"-d"};
parser = new CommandLineParser(args1);
parser.addRequiredUnarySwitch("-d", "(required, there are so many bugs)");
try {
parser.addLegalBinarySwitch("-d");
fail("Switch clobber didn't throw");
} catch (Exception e) {
assertTrue(e.getMessage().matches(".*already.*"));
}
parser.parse();
assertEquals(parser.getUnarySwitches().get(0), "-d");
}
}
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