langtools/test/tools/javac/lambda/MethodReferenceParserTest.java
author mcimadamore
Mon, 31 Aug 2015 17:33:34 +0100
changeset 32454 b0ac04e0fefe
parent 30730 d3ce7619db2c
permissions -rw-r--r--
8129962: Investigate performance improvements in langtools combo tests Summary: New combo API that runs all combo instances in a shared javac context (whenever possible). Reviewed-by: jjg, jlahoda, vromero
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/*
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 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 7115052 8003280 8006694 8129962
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 * @summary Add lambda tests
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 *  Add parser support for method references
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 *  temporarily workaround combo tests are causing time out in several platforms
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 * @library /tools/javac/lib
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 * @modules jdk.compiler/com.sun.tools.javac.api
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 *          jdk.compiler/com.sun.tools.javac.code
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 *          jdk.compiler/com.sun.tools.javac.comp
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 *          jdk.compiler/com.sun.tools.javac.main
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 *          jdk.compiler/com.sun.tools.javac.tree
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 *          jdk.compiler/com.sun.tools.javac.util
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 * @build combo.ComboTestHelper
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 * @run main MethodReferenceParserTest
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 */
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import java.io.IOException;
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import combo.ComboInstance;
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import combo.ComboParameter;
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import combo.ComboTask.Result;
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import combo.ComboTestHelper;
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public class MethodReferenceParserTest extends ComboInstance<MethodReferenceParserTest> {
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    enum ReferenceKind implements ComboParameter {
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        METHOD_REF("#{QUAL}::#{TARGS}m"),
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        CONSTRUCTOR_REF("#{QUAL}::#{TARGS}new"),
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        FALSE_REF("min < max"),
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        ERR_SUPER("#{QUAL}::#{TARGS}super"),
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        ERR_METH0("#{QUAL}::#{TARGS}m()"),
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        ERR_METH1("#{QUAL}::#{TARGS}m(X)"),
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        ERR_CONSTR0("#{QUAL}::#{TARGS}new()"),
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        ERR_CONSTR1("#{QUAL}::#{TARGS}new(X)");
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        String referenceTemplate;
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        ReferenceKind(String referenceTemplate) {
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            this.referenceTemplate = referenceTemplate;
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        }
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        boolean erroneous() {
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            switch (this) {
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                case ERR_SUPER:
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                case ERR_METH0:
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                case ERR_METH1:
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                case ERR_CONSTR0:
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                case ERR_CONSTR1:
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                    return true;
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                default: return false;
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            }
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        }
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        @Override
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        public String expand(String optParameter) {
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            return referenceTemplate;
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        }
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    }
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    enum ContextKind implements ComboParameter {
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        ASSIGN("SAM s = #{EXPR};"),
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        METHOD("m(#{EXPR}, i);");
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        String contextTemplate;
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        ContextKind(String contextTemplate) {
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            this.contextTemplate = contextTemplate;
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        }
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        @Override
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        public String expand(String optParameter) {
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            return contextTemplate;
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        }
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    }
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    enum GenericKind implements ComboParameter {
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        NONE(""),
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        ONE("<X>"),
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        TWO("<X,Y>");
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        String typeParameters;
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        GenericKind(String typeParameters) {
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            this.typeParameters = typeParameters;
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        }
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        @Override
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        public String expand(String optParameter) {
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            return typeParameters;
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        }
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    }
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    enum QualifierKind implements ComboParameter {
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        THIS("this"),
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        SUPER("super"),
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        NEW("new Foo()"),
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        METHOD("m()"),
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        FIELD("a.f"),
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        UBOUND_SIMPLE("A"),
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        UNBOUND_ARRAY1("int[]"),
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        UNBOUND_ARRAY2("A<G>[][]"),
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        UNBOUND_GENERIC1("A<X>"),
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        UNBOUND_GENERIC2("A<X, Y>"),
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        UNBOUND_GENERIC3("A<? extends X, ? super Y>"),
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        UNBOUND_GENERIC4("A<int[], short[][]>"),
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        NESTED_GENERIC1("A<A<X,Y>, A<X,Y>>"),
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        NESTED_GENERIC2("A<A<A<X,Y>,A<X,Y>>, A<A<X,Y>,A<X,Y>>>");
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        String qualifier;
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        QualifierKind(String qualifier) {
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            this.qualifier = qualifier;
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        }
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        @Override
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        public String expand(String optParameter) {
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            return qualifier;
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        }
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    }
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    enum ExprKind implements ComboParameter {
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        NONE("#{MREF}"),
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        SINGLE_PAREN1("(#{MREF}#{SUBEXPR})"),
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        SINGLE_PAREN2("(#{MREF})#{SUBEXPR}"),
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        DOUBLE_PAREN1("((#{MREF}#{SUBEXPR}))"),
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        DOUBLE_PAREN2("((#{MREF})#{SUBEXPR})"),
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        DOUBLE_PAREN3("((#{MREF}))#{SUBEXPR}");
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        String expressionTemplate;
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        ExprKind(String expressionTemplate) {
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            this.expressionTemplate = expressionTemplate;
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        }
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        @Override
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        public String expand(String optParameter) {
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            return expressionTemplate;
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        }
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    }
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    enum SubExprKind implements ComboParameter {
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        NONE(""),
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        SELECT_FIELD(".f"),
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        SELECT_METHOD(".f()"),
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        SELECT_NEW(".new Foo()"),
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        POSTINC("++"),
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        POSTDEC("--");
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        String subExpression;
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        SubExprKind(String subExpression) {
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            this.subExpression = subExpression;
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        }
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        @Override
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        public String expand(String optParameter) {
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            return subExpression;
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        }
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    }
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    public static void main(String... args) throws Exception {
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        new ComboTestHelper<MethodReferenceParserTest>()
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                .withDimension("MREF", (x, ref) -> x.rk = ref, ReferenceKind.values())
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                .withDimension("QUAL", QualifierKind.values())
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                .withDimension("TARGS", GenericKind.values())
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                .withDimension("EXPR", ExprKind.values())
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                .withDimension("SUBEXPR", SubExprKind.values())
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                .withDimension("CTX", ContextKind.values())
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                .run(MethodReferenceParserTest::new);
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    }
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    ReferenceKind rk;
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    String template = "class Test {\n" +
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                      "   void test() {\n" +
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                      "      #{CTX}\n" +
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                      "   }" +
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                      "}";
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    @Override
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    public void doWork() throws IOException {
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        check(newCompilationTask()
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                .withSourceFromTemplate(template)
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                .parse());
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    }
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    void check(Result<?> res) {
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        if (res.hasErrors() != rk.erroneous()) {
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            fail("invalid diagnostics for source:\n" +
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                res.compilationInfo() +
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                "\nFound error: " + res.hasErrors() +
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                "\nExpected error: " + rk.erroneous());
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        }
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    }
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}