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package com.beust.jcommander;
import org.testng.Assert;
import org.testng.annotations.Test;
import java.util.List;
/**
* Tests for @Parameter on top of methods.
*/
@Test
public class MethodSetterTest {
public void arityStringsSetter() {
class ArgsArityStringSetter {
@Parameter(names = "-pairs", arity = 2, description = "Pairs")
public void setPairs(List<String> pairs) {
this.pairs = pairs;
}
public List<String> getPairs() {
return this.pairs;
}
public List<String> pairs;
@Parameter(description = "Rest")
public void setRest(List<String> rest) {
this.rest = rest;
}
public List<String> rest;
}
ArgsArityStringSetter args = new ArgsArityStringSetter();
String[] argv = { "-pairs", "pair0", "pair1", "rest" };
new JCommander(args, argv);
Assert.assertEquals(args.pairs.size(), 2);
Assert.assertEquals(args.pairs.get(0), "pair0");
Assert.assertEquals(args.pairs.get(1), "pair1");
Assert.assertEquals(args.rest.size(), 1);
Assert.assertEquals(args.rest.get(0), "rest");
}
public void setterThatThrows() {
class Arg {
@Parameter(names = "--host")
public void setHost(String host) {
throw new ParameterException("Illegal host");
}
}
boolean passed = false;
try {
new JCommander(new Arg(), "--host", "host");
} catch(ParameterException ex) {
Assert.assertEquals(ex.getCause(), null);
passed = true;
}
Assert.assertTrue(passed, "Should have thrown an exception");
}
public void getterReturningNonString() {
class Arg {
private Integer port;
@Parameter(names = "--port")
public void setPort(String port) {
this.port = Integer.parseInt(port);
}
public Integer getPort() {
return port;
}
}
Arg arg = new Arg();
new JCommander(arg, "--port", "42");
Assert.assertEquals(arg.port, new Integer(42));
}
public void noGetterButWithField() {
class Arg {
private Integer port = 43;
@Parameter(names = "--port")
public void setPort(String port) {
this.port = Integer.parseInt(port);
}
}
Arg arg = new Arg();
JCommander jc = new JCommander(arg, "--port", "42");
ParameterDescription pd = jc.getParameters().get(0);
Assert.assertEquals(pd.getDefault(), 43);
}
@Test(enabled = false)
public static void main(String[] args) throws Exception {
new MethodSetterTest().noGetterButWithField();
}
}
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