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package com.oracle.truffle.js.scriptengine.test;

import org.junit.Test;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;

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

public class TestEngineLookup {

    
Regression test for github.com/graalvm/graaljs/issues/279.
/**
     * Regression test for github.com/graalvm/graaljs/issues/279.
     */
    private final ScriptEngineManager manager = new ScriptEngineManager();

    @Test
    public void testByExtension() throws ScriptException {
        for (String extension : new String[]{"js", "mjs"}) {
            ScriptEngine engine = manager.getEngineByExtension(extension);
            assertEquals(42, engine.eval("42;"));
        }
        assertNull(manager.getEngineByExtension("foo"));
    }

    @Test
    public void testByMimeType() throws ScriptException {
        for (String mime : new String[]{"application/javascript", "application/ecmascript", "text/javascript", "text/ecmascript"}) {
            ScriptEngine engine = manager.getEngineByMimeType(mime);
            assertEquals(42, engine.eval("42;"));
        }
        assertNull(manager.getEngineByMimeType("foo/bar"));
    }

    @Test
    public void testByNames() throws ScriptException {
        for (String name : new String[]{"Graal.js", "graal.js", "Graal-js", "graal-js", "Graal.JS", "Graal-JS", "GraalJS", "GraalJSPolyglot", "js", "JS", "JavaScript",
                        "javascript", "ECMAScript", "ecmascript"}) {
            ScriptEngine engine = manager.getEngineByName(name);
            assertEquals(42, engine.eval("42;"));
        }
        assertNull(manager.getEngineByName("foo"));
    }
}