package com.oracle.truffle.js.scriptengine.test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.awt.Point;
import java.util.Map;
import java.util.function.Supplier;
import javax.script.Bindings;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import org.junit.Test;
public class TestNashornTypeConversion {
public static class ValueHolder {
private String value;
public void setValue(String value) {
this.value = value;
}
public String getValue() {
return value;
}
}
private static ScriptEngine getEngineNashornCompat() {
ScriptEngineManager manager = new ScriptEngineManager();
return TestUtil.getEngineNashornCompat(manager);
}
private static void testToString(Object value, String expectedResult) throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
ValueHolder holder = new ValueHolder();
Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("holder", holder);
bindings.put("value", value);
engine.eval("holder.setValue(value)");
assertEquals(expectedResult, holder.getValue());
}
@Test
public void testNumberToString() throws ScriptException {
testToString(42, "42");
}
@Test
public void testBooleanToString() throws ScriptException {
testToString(true, "true");
}
@Test
public void testObjectToString() throws ScriptException {
Point p = new java.awt.Point(42, 211);
testToString(p, p.toString());
}
@Test
public void testNumberToDouble() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Object result = engine.eval("java.lang.Math.sin(java.math.BigDecimal.valueOf(42));");
assertEquals(String.valueOf(result), Math.sin(42), result);
}
@Test
public void testNumberToInteger() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Object result;
result = engine.eval("java.lang.Integer.hashCode(java.math.BigDecimal.valueOf(42));");
assertEquals(String.valueOf(result), Integer.hashCode(42), result);
result = engine.eval("java.lang.Integer.hashCode(42.5);");
assertEquals(String.valueOf(result), Integer.hashCode(42), result);
}
@Test
public void testNumberToLong() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Object result;
result = engine.eval("java.lang.Long.hashCode(java.math.BigDecimal.valueOf(42));");
assertEquals(String.valueOf(result), Long.hashCode(42), result);
result = engine.eval("java.lang.Long.hashCode(42.5);");
assertEquals(String.valueOf(result), Long.hashCode(42), result);
}
@Test
public void testStringToBoolean() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Object result;
result = engine.eval("var list = new java.util.ArrayList(); list.add('x'); list.add(''); list.stream().filter(function(e) { return e; }).count();");
assertEquals(String.valueOf(result), 1, result);
result = engine.eval("java.lang.Boolean.hashCode('x');");
assertEquals(String.valueOf(result), Boolean.hashCode(true), result);
result = engine.eval("java.lang.Boolean.hashCode('');");
assertEquals(String.valueOf(result), Boolean.hashCode(false), result);
}
@Test
public void testNumberToBoolean() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Object result;
result = engine.eval("java.lang.Boolean.hashCode(java.math.BigDecimal.valueOf(42));");
assertEquals(String.valueOf(result), Boolean.hashCode(true), result);
result = engine.eval("java.lang.Boolean.hashCode(java.math.BigDecimal.valueOf(0));");
assertEquals(String.valueOf(result), Boolean.hashCode(false), result);
result = engine.eval("java.lang.Boolean.hashCode(42);");
assertEquals(String.valueOf(result), Boolean.hashCode(true), result);
result = engine.eval("java.lang.Boolean.hashCode(0);");
assertEquals(String.valueOf(result), Boolean.hashCode(false), result);
}
@Test
public void testNewLong() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
engine.eval("var Long = Java.type('java.lang.Long');");
Object result;
result = engine.eval("new Long(33);");
assertEquals(String.valueOf(result), 33, result);
result = engine.eval("Long.valueOf(33);");
assertEquals(String.valueOf(result), 33, result);
}
@Test
public void testUser1() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("user", new User1());
Object result;
result = engine.eval("user.test(1, 3);");
assertTrue(String.valueOf(result), "(int,Integer)".equals(result));
result = engine.eval("user.test(1, 'test');");
assertTrue(String.valueOf(result), "(int,String)".equals(result));
}
@Test
public void testUser2() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("user", new User2());
bindings.put("throwable", new Throwable());
Object result;
result = engine.eval("user.test('msg');");
assertTrue(String.valueOf(result), "(String)".equals(result));
result = engine.eval("user.test('msg', throwable);");
assertTrue(String.valueOf(result), "(String,Throwable)".equals(result));
result = engine.eval("user.test('msg', {});");
assertTrue(String.valueOf(result), "(String,Object)".equals(result));
result = engine.eval("user.test('msg', 'str');");
assertTrue(String.valueOf(result), "(String,String)".equals(result));
result = engine.eval("user.test('msg', {}, {});");
assertTrue(String.valueOf(result), "(String,Object,Object)".equals(result));
result = engine.eval("user.test('msg', 'str', {}, 3);");
assertTrue(String.valueOf(result), "(String,Object[])".equals(result));
}
@Test
public void testUser3() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("user", new User3());
bindings.put("throwable", new Throwable());
Object result;
result = engine.eval("user.test(33);");
assertTrue(String.valueOf(result), "(String)".equals(result));
result = engine.eval("user.test({});");
assertTrue(String.valueOf(result), "(Map)".equals(result));
}
@Test
public void testUser4() throws ScriptException {
ScriptEngine engine = getEngineNashornCompat();
Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("user", new User4());
bindings.put("throwable", new Throwable());
Object result;
result = engine.eval("user.test(33);");
assertTrue(String.valueOf(result), "(String)".equals(result));
result = engine.eval("user.test({get: () => 42});");
assertTrue(String.valueOf(result), "(Supplier)".equals(result));
}
@SuppressWarnings("unused")
public static class User1 {
public String test(int n1, Integer n2) {
return "(int,Integer)";
}
public String test(int n1, String n2) {
return "(int,String)";
}
}
@SuppressWarnings("unused")
public static class User2 {
public String test(String msg) {
return "(String)";
}
public String test(String format, Object arg) {
return "(String,Object)";
}
public String test(String format, Object arg1, Object arg2) {
return "(String,Object,Object)";
}
public String test(String msg, Throwable t) {
return "(String,Throwable)";
}
public String test(String format, Object... args) {
return "(String,Object[])";
}
public String test(String format, String arg) {
return "(String,String)";
}
public String test(String msg, Map<?, ?> t) {
return "(String,Map)";
}
}
@SuppressWarnings("unused")
public static class User3 {
public String test(String arg) {
return "(String)";
}
public String test(Map<?, ?> t) {
return "(Map)";
}
}
@SuppressWarnings("unused")
public static class User4 {
public String test(String arg) {
return "(String)";
}
public String test(Supplier<Object> t) {
assertEquals(42, t.get());
return "(Supplier)";
}
}
}