package com.googlecode.aviator.runtime.function.system;
import static org.junit.Assert.*;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.HashMap;
import java.util.Map;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.googlecode.aviator.runtime.type.AviatorJavaType;
import com.googlecode.aviator.runtime.type.AviatorObject;
import com.googlecode.aviator.runtime.type.AviatorString;
public class PrintlnFunctionUnitTest {
private PrintlnFunction fun;
PrintStream systemOut;
@Before
public void setUp() {
fun = new PrintlnFunction();
systemOut = System.out;
}
@After
public void tearDown() {
System.setOut(systemOut);
}
@Test
public void testCall_WithEmpyArguments() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
System.setOut(new PrintStream(out));
fun.call(null, new AviatorObject[0]);
out.flush();
out.close();
String lineSeparator = System.getProperty("line.separator");
byte[] data = out.toByteArray();
assertEquals(lineSeparator, new String(data));
}
@Test
public void testCall_WithOneArgument() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
System.setOut(new PrintStream(out));
AviatorObject[] args = new AviatorObject[1];
args[0] = new AviatorString("hello");
fun.call(null, args);
out.flush();
out.close();
String lineSeparator = System.getProperty("line.separator");
byte[] data = out.toByteArray();
assertEquals("hello" + lineSeparator, new String(data));
}
@Test
public void testCall_WithTwoArgument() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
System.setOut(new PrintStream(out));
AviatorObject[] args = new AviatorObject[2];
args[0] = new AviatorJavaType("out");
args[1] = new AviatorString("hello");
Map<String, Object> env = new HashMap<String, Object>();
env.put("out", out);
fun.call(env, args);
out.flush();
out.close();
String lineSeparator = System.getProperty("line.separator");
byte[] data = out.toByteArray();
assertEquals("hello" + lineSeparator, new String(data));
}
@Test(expected = IllegalArgumentException.class)
public void testCall_WithFourArgument() throws Exception {
fun.call(null, new AviatorObject[4]);
}
}