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113 lines
4.9 KiB
C++
113 lines
4.9 KiB
C++
/*
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* Copyright (c) 2022, 2025, 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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#include "classfile/classPrinter.hpp"
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#include "memory/resourceArea.hpp"
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#include "runtime/interfaceSupport.inline.hpp"
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#include "runtime/javaThread.hpp"
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#include "utilities/ostream.hpp"
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#include "unittest.hpp"
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using testing::ContainsRegex;
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using testing::HasSubstr;
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TEST_VM(ClassPrinter, print_classes) {
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JavaThread* THREAD = JavaThread::current();
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ThreadInVMfromNative invm(THREAD);
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ResourceMark rm;
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stringStream s1;
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ClassPrinter::print_classes("java/lang/Object", 0x03, &s1);
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const char* o1 = s1.freeze();
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ASSERT_THAT(o1, HasSubstr("class: java/lang/Object mirror:")) << "must find java/lang/Object";
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ASSERT_THAT(o1, HasSubstr("method wait : (J)V")) << "must find java/lang/Object::wait";
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ASSERT_THAT(o1, HasSubstr("method finalize : ()V\n 0 return")) << "must find java/lang/Object::finalize and disasm";
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// "." should also work as separator in class name
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stringStream s2;
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ClassPrinter::print_classes("java.lang.Object", 0x03, &s2);
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const char* o2 = s2.freeze();
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ASSERT_THAT(o2, HasSubstr("class: java/lang/Object mirror:")) << "must find java/lang/Object";
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// 0x20 is PRINT_CLASS_DETAILS
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stringStream s3;
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ClassPrinter::print_classes("java.lang.Integer", 0x20, &s3);
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const char* o3 = s3.freeze();
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ASSERT_THAT(o3, HasSubstr("class: java/lang/Integer mirror:")) << "must find java/lang/Integer";
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ASSERT_THAT(o3, HasSubstr("InstanceKlass: java.lang.Integer {0x")) << "must print InstanceKlass";
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ASSERT_THAT(o3, HasSubstr("Java mirror oop for java/lang/Integer:")) << "must print mirror oop";
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#if GTEST_USES_POSIX_RE
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// Complex regex not available on Windows
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ASSERT_THAT(o3, ContainsRegex("public static final 'MIN_VALUE' 'I'.* -2147483648 [(]0x80000000[)]")) << "must print static fields";
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#endif
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}
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TEST_VM(ClassPrinter, print_methods) {
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JavaThread* THREAD = JavaThread::current();
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ThreadInVMfromNative invm(THREAD);
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ResourceMark rm;
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stringStream s1;
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ClassPrinter::print_methods("*ang/Object*", "wait", 0x1, &s1);
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const char* o1 = s1.freeze();
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ASSERT_THAT(o1, HasSubstr("class: java/lang/Object mirror:")) << "must find java/lang/Object";
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ASSERT_THAT(o1, HasSubstr("method wait : (J)V")) << "must find java/lang/Object::wait(long)";
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ASSERT_THAT(o1, HasSubstr("method wait : ()V")) << "must find java/lang/Object::wait()";
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ASSERT_THAT(o1, Not(HasSubstr("method finalize : ()V"))) << "must not find java/lang/Object::finalize";
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stringStream s2;
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ClassPrinter::print_methods("j*ang/Object*", "wait:(*J*)V", 0x1, &s2);
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const char* o2 = s2.freeze();
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ASSERT_THAT(o2, HasSubstr("class: java/lang/Object mirror:")) << "must find java/lang/Object";
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ASSERT_THAT(o2, HasSubstr("method wait : (J)V")) << "must find java/lang/Object::wait(long)";
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ASSERT_THAT(o2, HasSubstr("method wait : (JI)V")) << "must find java/lang/Object::wait(long,int)";
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ASSERT_THAT(o2, Not(HasSubstr("method wait : ()V"))) << "must not find java/lang/Object::wait()";
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// 0x02 is PRINT_BYTECODE
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// 0x04 is PRINT_BYTECODE_ADDRESS
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// 0x40 is PRINT_METHOD_DETAILS
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stringStream s3;
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ClassPrinter::print_methods("java.lang.Object", "wait:()V", 0x46, &s3);
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const char* o3 = s3.freeze();
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ASSERT_THAT(o3, HasSubstr("method wait : ()V")) << "must find java/lang/Object::wait()";
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#ifndef PRODUCT
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// PRINT_METHOD_DETAILS -- available only in debug builds
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ASSERT_THAT(o3, HasSubstr("{method}")) << "must print Method metadata";
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#if GTEST_USES_POSIX_RE
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// Complex regex not available on Windows
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ASSERT_THAT(o3, ContainsRegex("method holder:.*'java/lang/Object'")) << "must print Method metadata details";
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ASSERT_THAT(o3, ContainsRegex("name: *'wait'")) << "must print Method metadata details";
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#endif
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#endif
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#if GTEST_USES_POSIX_RE
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// Bytecodes: we should have at least one 'return' bytecide for Object.wait()
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// The print out should look like this:
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// 0x000000004adf73ad 5 return
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ASSERT_THAT(o3, ContainsRegex("0x[0-9a-f]+ +[0-9]+ +return")) << "must print return bytecode";
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#endif
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}
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