/*
* Copyright ( c ) 2014 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
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*/
/* @test
* @ summary unit tests for java . lang . invoke . LambdaForm
* @ modules java . base / java . lang . invoke : open
* @ run junit / othervm test . java . lang . invoke . LambdaFormTest
*/
package test.java.lang.invoke;
import org.junit.Test;
import java.lang.reflect.Method;
import static org.junit.Assert .*;
public class LambdaFormTest {
static final Method M_shortenSignature;
static {
try {
Class <?> impl = Class .forName("java.lang.invoke.LambdaForm" , false , null );
Method m = impl.getDeclaredMethod("shortenSignature" , String.class );
m.setAccessible(true );
M_shortenSignature = m;
} catch (Exception e) {
throw new AssertionError(e);
}
}
public static String shortenSignature(String signature) throws ReflectiveOperationException {
return (String)M_shortenSignature.invoke(null , signature);
}
@Test
public void testShortenSignature() throws ReflectiveOperationException {
for (String s : new String[] {
// invariant strings:
"L" , "LL" , "ILL" , "LIL" , "LLI" , "IILL" , "ILIL" , "ILLI" ,
// a few mappings:
"LLL=L3" , "LLLL=L4" , "LLLLLLLLLL=L10" ,
"IIIDDD=I3D3" , "IDDD=ID3" , "IIDDD=IID3" , "IIID=I3D" , "IIIDD=I3DD"
}) {
String s2 = s.substring(s.indexOf('=' )+1 );
String s1 = s.equals(s2) ? s : s.substring(0 , s.length() - s2.length() - 1 );
// mix the above cases with before and after reps of Z*
for (int k = -3 ; k <= 3 ; k++) {
String beg = (k < 0 ? "ZZZZ" .substring(-k) : "" );
String end = (k > 0 ? "ZZZZ" .substring(+k) : "" );
String ks1 = beg+s1+end;
String ks2 = shortenSignature(beg)+s2+shortenSignature(end);
String ks3 = shortenSignature(ks1);
assertEquals(ks2, ks3);
}
}
}
public static void main(String[] args) throws ReflectiveOperationException {
LambdaFormTest test = new LambdaFormTest();
test.testShortenSignature();
}
}
Messung V0.5 in Prozent C=96 H=92 G=93
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-10-11)
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