StaticMethodsInvokationCompilationTest.java

package me.tomassetti.turin.compiler;

import me.tomassetti.turin.classloading.TurinClassLoader;
import me.tomassetti.turin.classloading.ClassFileDefinition;
import me.tomassetti.turin.parser.Parser;
import me.tomassetti.turin.parser.ast.TurinFile;
import org.junit.Test;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.List;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

public class StaticMethodsInvokationCompilationTest extends AbstractCompilerTest {

    @Test
    public void compileInvokationsToCollectionsEmptyList() throws IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchMethodException, IOException {
        TurinFile turinFile = new Parser().parse(this.getClass().getResourceAsStream("/static_methods_invokation.to"));

        // generate bytecode
        Compiler instance = new Compiler(getResolverFor(turinFile), new Compiler.Options());
        List<ClassFileDefinition> classFileDefinitions = instance.compile(turinFile, new MyErrorCollector());
        assertEquals(1, classFileDefinitions.size());

        TurinClassLoader turinClassLoader = new TurinClassLoader();
        Class functionClass = turinClassLoader.addClass(classFileDefinitions.get(0).getName(),
                classFileDefinitions.get(0).getBytecode());
        assertEquals(0, functionClass.getConstructors().length);

        Method invoke = functionClass.getMethod("invoke");
        Object result = invoke.invoke(null);
        assertTrue(result instanceof List);
        List list = (List)result;
        assertTrue(list.isEmpty());
    }

}