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101 lines
4.2 KiB
Java
101 lines
4.2 KiB
Java
/*
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* Copyright (c) 2024, 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 8345145
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* @summary javap should not print LineNumberTable/LocalVariableTable (-l) without disassembled code (-c).
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* @compile -g ClassWriterNoLineVariableTableTest.java
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* @run junit ClassWriterNoLineVariableTableTest
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* @modules jdk.jdeps/com.sun.tools.javap
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*/
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.ValueSource;
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import static org.junit.jupiter.api.Assertions.*;
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public class ClassWriterNoLineVariableTableTest {
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String expectedErrorOutput = "Warning: bad combination of options: -l without -c, line number and local variable tables will not be printed";
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@Test
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public void testJavapWithoutCodeAttribute() {
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String output = javap("-l");
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assertContains(output, expectedErrorOutput,
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"javap should throw warning, when -l used without -c or -v");
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assertNotContains(output, "LineNumberTable",
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"There should be no LineNumberTable output when javap is provided l without -c or -v");
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assertNotContains(output, "LocalVariableTable",
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"There should be no LineNumberTable output when javap is provided l without -c or -v");
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}
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@ParameterizedTest(name = "Test javap with fixed option -l and varying option: {0}")
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@ValueSource(strings = {"-v", "-c"})
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public void testJavapWithCodeAttribute(String addedOption) {
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String output = javap("-l", addedOption);
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assertNotContains(output, expectedErrorOutput,
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"There should be no warning when javap is provided -l and " + addedOption);
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assertContains(output, "LineNumberTable",
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"There should be LineNumberTable output when javap is provided -l and " + addedOption);
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assertContains(output, "LocalVariableTable",
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"There should be LocalVariableTable output when javap is provided -l and " + addedOption);
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}
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private static void assertContains(String actual, String expectedSubstring, String message) {
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assertTrue(actual.contains(expectedSubstring),
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message + " - Expected '" + actual + "' to contain '" + expectedSubstring + "'");
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}
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private static void assertNotContains(String actual, String expectedSubstring, String message) {
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assertFalse(actual.contains(expectedSubstring),
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message + " - Expected '" + actual + "' not to contain '" + expectedSubstring + "'");
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}
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private String javap(String... args) {
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StringWriter sw = new StringWriter();
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PrintWriter out = new PrintWriter(sw);
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String[] fullArgs = new String[args.length + 1];
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System.arraycopy(args, 0, fullArgs, 0, args.length);
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fullArgs[args.length] = System.getProperty("test.classes") + "/RandomLoop8345145.class";
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int rc = com.sun.tools.javap.Main.run(fullArgs, out);
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if (rc != 0)
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throw new Error("javap failed. rc=" + rc);
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out.close();
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System.out.println(sw);
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return sw.toString();
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}
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}
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class RandomLoop8345145 {
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public void randomLoop() {
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int x = 5;
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for (int i = 0; i < 10; i++) {
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x*=2;
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}
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}
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} |