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How to use JsEngine class of com.intuit.karate.graal package

Best Karate code snippet using com.intuit.karate.graal.JsEngine

Source:JsEngineTest.java

...17/**18 *19 * @author pthomas320 */21class JsEngineTest {22    static final Logger logger = LoggerFactory.getLogger(JsEngineTest.class);23    JsEngine je;24    @BeforeEach25    void beforeEach() {26        je = JsEngine.global();27    }28    @AfterEach29    void afterEach() {30        JsEngine.remove();31    }32    @Test33    void testFunctionExecute() {34        JsValue v = je.eval("(function(){ return ['a', 'b', 'c'] })");35        JsValue res = new JsValue(JsEngine.execute(v.getOriginal()));36        assertTrue(res.isArray());37        assertEquals("[\"a\",\"b\",\"c\"]", res.toJsonOrXmlString(false));38        assertEquals("function(){ return ['a', 'b', 'c'] }", v.toString());39    }40    @Test41    void testArrowFunctionZeroArg() {42        JsValue v = je.eval("() => ['a', 'b', 'c']");43        assertTrue(v.isFunction());44        JsValue res = new JsValue(JsEngine.execute(v.getOriginal()));45        assertTrue(res.isArray());46        assertEquals("[\"a\",\"b\",\"c\"]", res.toJsonOrXmlString(false));47        assertEquals("() => ['a', 'b', 'c']", v.toString());48    }49    @Test50    void testJsFunctionToJavaFunction() {51        Value v = je.evalForValue("() => 'hello'");52        assertTrue(v.canExecute());53        Function temp = (Function) v.as(Object.class);54        String res = (String) temp.apply(null);55        assertEquals(res, "hello");56        v = je.evalForValue("(a, b) => a + b");57        assertTrue(v.canExecute());58        temp = v.as(Function.class);59        Number num = (Number) temp.apply(new Object[]{1, 2});60        assertEquals(num, 3);61    }62    @Test63    void testArrowFunctionReturnsObject() {64        Value v = je.evalForValue("() => { a: 1 }");65        assertTrue(v.canExecute());66        Value res = v.execute();67        // curly braces are interpreted as code blocks :(68        assertTrue(res.isNull());69        v = je.evalForValue("() => ({ a: 1 })");70        assertTrue(v.canExecute());71        res = v.execute();72        Match.that(res.as(Map.class)).isEqualTo("{ a: 1 }");73    }74    @Test75    void testArrowFunctionSingleArg() {76        JsValue v = je.eval("x => [x, x]");77        assertTrue(v.isFunction());78        JsValue res = new JsValue(JsEngine.execute(v.getOriginal(), 1));79        assertTrue(res.isArray());80        assertEquals("[1,1]", res.toJsonOrXmlString(false));81        assertEquals("x => [x, x]", v.toString());82    }83    @Test84    void testFunctionVariableExecute() {85        je.eval("var add = function(a, b){ return a + b }");86        JsValue jv = je.eval("add(1, 2)");87        assertEquals(jv.<Integer>getValue(), 3);88    }89    @Test90    void testJavaInterop() {91        je.eval("var SimplePojo = Java.type('com.intuit.karate.graal.SimplePojo')");92        JsValue sp = je.eval("new SimplePojo()");...

Source:VariableTest.java

1package com.intuit.karate.core;2import com.intuit.karate.graal.JsValue;3import com.intuit.karate.graal.JsEngine;4import java.util.function.BiFunction;5import java.util.function.Function;6import org.graalvm.polyglot.Value;7import org.junit.jupiter.api.AfterEach;8import org.junit.jupiter.api.BeforeEach;9import org.junit.jupiter.api.Test;10import org.slf4j.Logger;11import org.slf4j.LoggerFactory;12import static org.junit.jupiter.api.Assertions.*;13/**14 *15 * @author pthomas316 */17public class VariableTest {18    static final Logger logger = LoggerFactory.getLogger(VariableTest.class);19    JsEngine je;20    @BeforeEach21    void beforeEach() {22        je = JsEngine.global();23    }24    @AfterEach25    void afterEach() {26        JsEngine.remove();27    }28    @Test29    void testJsFunction() {30        JsValue jv = je.eval("(function(a, b){ return a + b })");31        Variable var = new Variable(jv);32        assertTrue(var.isJsFunction());33        assertFalse(var.isJavaFunction());34        JsValue res = new JsValue(JsEngine.execute(var.getValue(), new Object[]{1, 2}));35        assertEquals(3, res.<Integer>getValue());36    }37    @Test38    void testPojo() {39        JsValue jv = je.eval("new com.intuit.karate.core.SimplePojo()");40        assertTrue(jv.isOther());41    }42    @Test43    void testClass() {44        JsValue jv = je.eval("Java.type('com.intuit.karate.core.MockUtils')");45        assertTrue(jv.isOther());46        Variable v = new Variable(jv);47        assertEquals(v.type, Variable.Type.OTHER);48        assertTrue(v.getValue() instanceof Value);...

JsEngine

Using AI Code Generation

1import com.intuit.karate.graal.JsEngine;2import javax.script.ScriptContext;3import javax.script.ScriptEngine;4import javax.script.ScriptException;5public class 4 {6    public static void main(String[] args) throws ScriptException {7        ScriptEngine engine = JsEngine.jsEngine();8        engine.put("name", "John");9        engine.eval("print('Hello, ' + name)");10    }11}12import com.intuit.karate.graal.JsEngine;13import javax.script.ScriptContext;14import javax.script.ScriptEngine;15import javax.script.ScriptException;16public class 5 {17    public static void main(String[] args) throws ScriptException {18        ScriptEngine engine = JsEngine.jsEngine();19        engine.put("name", "John");20        engine.eval("print('Hello, ' + name)");21    }22}23import com.intuit.karate.graal.JsEngine;24import javax.script.ScriptContext;25import javax.script.ScriptEngine;26import javax.script.ScriptException;27public class 6 {28    public static void main(String[] args) throws ScriptException {29        ScriptEngine engine = JsEngine.jsEngine();30        engine.put("name", "John");31        engine.eval("print('Hello, ' + name)");32    }33}34import com.intuit.karate.graal.JsEngine;35import javax.script.ScriptContext;36import javax.script.ScriptEngine;37import javax.script.ScriptException;38public class 7 {39    public static void main(String[] args) throws ScriptException {40        ScriptEngine engine = JsEngine.jsEngine();41        engine.put("name", "John");42        engine.eval("print('Hello, ' + name)");43    }44}45import com.intuit.karate.graal.JsEngine;46import javax.script.ScriptContext;47import javax.script.ScriptEngine;48import javax.script.ScriptException;49public class 8 {50    public static void main(String[] args) throws ScriptException {51        ScriptEngine engine = JsEngine.jsEngine();52        engine.put("name", "

JsEngine

Using AI Code Generation

1import com.intuit.karate.graal.JsEngine;2import com.intuit.karate.graal.JsFunction;3import com.intuit.karate.graal.JsValue;4import java.util.HashMap;5import java.util.Map;6import javax.script.ScriptException;7public class 4 {8    public static void main(String[] args) throws ScriptException {9        JsEngine engine = JsEngine.start();10        JsValue jsValue = engine.eval("function add(a, b) { return a + b }");11        JsFunction jsFunction = jsValue.getAsFunction();12        Map<String, Object> map = new HashMap<>();13        map.put("a", 1);14        map.put("b", 2);15        Object result = jsFunction.call(map);16        System.out.println(result);17    }18}19import com.intuit.karate.graal.JsEngine;20import com.intuit.karate.graal.JsFunction;21import com.intuit.karate.graal.JsValue;22import java.util.HashMap;23import java.util.Map;24import javax.script.ScriptException;25public class 5 {26    public static void main(String[] args) throws ScriptException {27        JsEngine engine = JsEngine.start();28        JsValue jsValue = engine.eval("function add(a, b) { return a + b }");29        JsFunction jsFunction = jsValue.getAsFunction();30        Object result = jsFunction.call(1, 2);31        System.out.println(result);32    }33}34import com.intuit.karate.graal.JsEngine;35import com.intuit.karate.graal.JsFunction;36import com.intuit.karate.graal.JsValue;37import java.util.HashMap;38import java.util.Map;39import javax.script.ScriptException;40public class 6 {41    public static void main(String[] args) throws ScriptException {42        JsEngine engine = JsEngine.start();43        JsValue jsValue = engine.eval("function add(a, b) { return a + b }");44        JsFunction jsFunction = jsValue.getAsFunction();45        Object result = jsFunction.call(1, 2, 3);46        System.out.println(result);47    }48}

JsEngine

Using AI Code Generation

1import com.intuit.karate.graal.JsEngine;2import com.intuit.karate.graal.JsValue;3import java.util.HashMap;4import java.util.Map;5import java.util.concurrent.TimeUnit;6import java.util.concurrent.atomic.AtomicInteger;7import javax.script.ScriptException;8import org.graalvm.polyglot.Value;9import org.junit.Test;10import static org.junit.Assert.*;11public class JsEngineTest {12    public void testJsEngine() throws Exception {13        JsEngine engine = new JsEngine();14        engine.put("foo", "bar");15        JsValue result = engine.eval("foo");16        assertEquals("bar", result.getAsString());17        engine.put("foo", 123);18        result = engine.eval("foo");19        assertEquals(123, result.get());20        engine.put("foo", true);21        result = engine.eval("foo");22        assertEquals(true, result.getAsBoolean());23        Map<String, Object> map = new HashMap();24        map.put("foo", 123);25        engine.put("map", map);26        result = engine.eval("map.foo");27        assertEquals(123, result.get());28        engine.put("foo", new AtomicInteger(123));29        result = engine.eval("foo.incrementAndGet()");30        assertEquals(124, result.get());31        result = engine.eval("foo");32        assertEquals(124, result.get());33        engine.put("foo", new AtomicInteger(123));34        result = engine.eval("foo.incrementAndGet()");35        assertEquals(124, result.get());36        result = engine.eval("foo");37        assertEquals(124, result.get());38        result = engine.eval("function(x) { return x + 1; }");39        Value fn = result.get();

JsEngine

Using AI Code Generation

1package com.intuit.karate.graal;2import java.util.Map;3import java.util.HashMap;4import javax.script.ScriptEngine;5import javax.script.ScriptEngineManager;6import javax.script.ScriptException;7import javax.script.Invocable;8public class JsEngine {9    private final ScriptEngine engine;10    private final Invocable invocable;11    private final Map<String, Object> bindings;12    public JsEngine() {13        engine = new ScriptEngineManager().getEngineByName("nashorn");14        invocable = (Invocable) engine;15        bindings = new HashMap();16    }17    public JsEngine addBinding(String name, Object value) {18        bindings.put(name, value);19        return this;20    }21    public Object run(String code) {22        try {23            bindings.forEach((k, v) -> engine.put(k, v));24            return invocable.invokeFunction("eval", code);25        } catch (ScriptException | NoSuchMethodException e) {26            throw new RuntimeException(e);27        }28    }29    public Object run(String code, Map<String, Object> map) {30        map.forEach((k, v) -> engine.put(k, v));31        return run(code);32    }33    public Object run(String code, Object... args) {34        for (int i = 0; i < args.length; i += 2) {35            engine.put((String) args[i], args[i + 1]);36        }37        return run(code);38    }39}40package com.intuit.karate.graal;41import java.util.Map;42import javax.script.ScriptEngine;43import javax.script.ScriptEngineManager;44import javax.script.ScriptException;45import javax.script.Invocable;46public class JsEngine {47    private final ScriptEngine engine;48    private final Invocable invocable;49    private final Map<String, Object> bindings;50    public JsEngine() {51        engine = new ScriptEngineManager().getEngineByName("nashorn");52        invocable = (Invocable) engine;53        bindings = new HashMap();54    }55    public JsEngine addBinding(String name, Object value)

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