Javascript.java

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/*-
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 * #%L
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 * io.earcam.utilitarian.site.search.offline
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 * %%
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 * Copyright (C) 2017 earcam
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 * %%
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 * SPDX-License-Identifier: (BSD-3-Clause OR EPL-1.0 OR Apache-2.0 OR MIT)
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 *
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 * You <b>must</b> choose to accept, in full - any individual or combination of
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 * the following licenses:
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 * <ul>
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 * 	<li><a href="https://opensource.org/licenses/BSD-3-Clause">BSD-3-Clause</a></li>
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 * 	<li><a href="https://www.eclipse.org/legal/epl-v10.html">EPL-1.0</a></li>
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 * 	<li><a href="https://www.apache.org/licenses/LICENSE-2.0">Apache-2.0</a></li>
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 * 	<li><a href="https://opensource.org/licenses/MIT">MIT</a></li>
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 * </ul>
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 * #L%
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 */
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package io.earcam.utilitarian.site.search.offline;
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import static java.nio.charset.StandardCharsets.UTF_8;
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import static java.util.ServiceLoader.load;
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import static java.util.stream.StreamSupport.stream;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.nio.charset.Charset;
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import java.util.Optional;
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import javax.script.Invocable;
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import javax.script.ScriptEngine;
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import javax.script.ScriptEngineFactory;
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import javax.script.ScriptException;
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import io.earcam.unexceptional.Exceptional;
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final class Javascript {
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	private static final String ECMA_SCRIPT = "ECMAScript";
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	private static final Charset CHARSET = UTF_8;
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	private Javascript()
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	{
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		throw new IllegalStateException("nope");
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	}
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	public static Invocable createJavascriptEngine(InputStream... scripts)
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	{
51 1 1. createJavascriptEngine : mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::createJavascriptEngine to ( if (x != null) null else throw new RuntimeException ) → KILLED
 
		return createScriptEngine(ECMA_SCRIPT, scripts);
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	}
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	public static Invocable createScriptEngine(String language, InputStream... scripts)
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	{
57 1 1. lambda$createScriptEngine$0 : mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::lambda$createScriptEngine$0 to ( if (x != null) null else throw new RuntimeException ) → KILLED
 
		ScriptEngine engine = specified().orElseGet(() -> spi(language));
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		for(InputStream script : scripts) {
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			try {
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				engine.eval(new InputStreamReader(script, CHARSET));
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			} catch(ScriptException e) {
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				throw new ScriptRuntimeException(e);
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			}
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		}
66 1 1. createScriptEngine : mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::createScriptEngine to ( if (x != null) null else throw new RuntimeException ) → KILLED
 
		return (Invocable) engine;
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	}
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	private static Optional<ScriptEngine> specified()
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	{
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		String specified = System.getProperty(Resources.PROPERTY_USE_SCRIPT_ENGINE, "");
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74 2 1. specified : negated conditional → KILLED
2. specified : mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::specified to ( if (x != null) null else throw new RuntimeException ) → KILLED
 
		return ("".equals(specified)) ? Optional.empty() : Exceptional.apply(Javascript::loadSpecified, specified);
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	}
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	private static Optional<ScriptEngine> loadSpecified(String engineType) throws ReflectiveOperationException
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	{
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		Class<?> specific = Javascript.class.getClassLoader().loadClass(engineType);
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		ScriptEngineFactory factory = (ScriptEngineFactory) specific.newInstance();
82 1 1. loadSpecified : mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::loadSpecified to ( if (x != null) null else throw new RuntimeException ) → KILLED
 
		return Optional.of(factory.getScriptEngine());
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	}
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	private static ScriptEngine spi(String language)
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	{
88 1 1. spi : mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::spi to ( if (x != null) null else throw new RuntimeException ) → KILLED
 
		return stream(load(ScriptEngineFactory.class).spliterator(), false)
89 1 1. lambda$spi$1 : replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED
 
				.filter(f -> f.getLanguageName().equals(language))
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				.findAny()
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				.orElseThrow(ScriptRuntimeException::engineNotFound)
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				.getScriptEngine();
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	}
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	public static Object invokeFunction(Invocable engine, String name, Object... args)
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	{
98 1 1. invokeFunction : mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::invokeFunction to ( if (x != null) null else throw new RuntimeException ) → KILLED
 
		return Exceptional.apply(engine::invokeFunction, name, args);
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	}
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}

Mutations

51

1.1
Location : createJavascriptEngine
Killed by : io.earcam.utilitarian.site.search.offline.JavascriptTest.alternativeScriptEngineUsed() mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::createJavascriptEngine to ( if (x != null) null else throw new RuntimeException ) → KILLED
57

1.1
Location : lambda$createScriptEngine$0
Killed by : io.earcam.utilitarian.site.search.offline.JavascriptTest.throwsForInvalidScript() mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::lambda$createScriptEngine$0 to ( if (x != null) null else throw new RuntimeException ) → KILLED
66

1.1
Location : createScriptEngine
Killed by : io.earcam.utilitarian.site.search.offline.JavascriptTest.alternativeScriptEngineUsed() mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::createScriptEngine to ( if (x != null) null else throw new RuntimeException ) → KILLED
74

1.1
Location : specified
Killed by : io.earcam.utilitarian.site.search.offline.JavascriptTest.throwsWhenScriptEngineNotFoundForLanguage() negated conditional → KILLED

2.2
Location : specified
Killed by : io.earcam.utilitarian.site.search.offline.JavascriptTest.throwsWhenScriptEngineNotFoundForLanguage() mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::specified to ( if (x != null) null else throw new RuntimeException ) → KILLED
82

1.1
Location : loadSpecified
Killed by : io.earcam.utilitarian.site.search.offline.JavascriptTest.alternativeScriptEngineUsed() mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::loadSpecified to ( if (x != null) null else throw new RuntimeException ) → KILLED
88

1.1
Location : spi
Killed by : io.earcam.utilitarian.site.search.offline.JavascriptTest.throwsForInvalidScript() mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::spi to ( if (x != null) null else throw new RuntimeException ) → KILLED
89

1.1
Location : lambda$spi$1
Killed by : io.earcam.utilitarian.site.search.offline.JavascriptTest.throwsWhenScriptEngineNotFoundForLanguage() replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED
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1.1
Location : invokeFunction
Killed by : io.earcam.utilitarian.site.search.offline.DefaultIndexerTest.writesJsonToFileSystem() mutated return of Object value for io/earcam/utilitarian/site/search/offline/Javascript::invokeFunction to ( if (x != null) null else throw new RuntimeException ) → KILLED

Active mutators

Tests examined


Report generated by PIT 1.4.3