1 /* 2 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package gc.arguments; 25 26 /* 27 * @test TestG1ConcMarkStepDurationMillis 28 * @key gc 29 * @requires vm.gc.G1 30 * @summary Tests argument processing for double type flag, G1ConcMarkStepDurationMillis 31 * @library /test/lib 32 * @library / 33 * @modules java.base/jdk.internal.misc 34 * java.management 35 * @run main gc.arguments.TestG1ConcMarkStepDurationMillis 36 */ 37 38 import jdk.test.lib.process.ProcessTools; 39 import jdk.test.lib.process.OutputAnalyzer; 40 import java.util.*; 41 import java.util.regex.*; 42 43 public class TestG1ConcMarkStepDurationMillis { 44 45 static final int PASS = 0; 46 static final int FAIL_IMPROPER_VALUE = 1; 47 static final int FAIL_OUT_RANGE = 2; 48 49 static final String DOUBLE_1 = "1.0"; 50 static final String DOUBLE_MAX = "1.79e+308"; 51 52 static final String DOUBLE_NEG_EXP = "1.0e-30"; 53 static final String NEG_DOUBLE_1 = "-1.0"; 54 55 static final String DOUBLE_INF = "1.79e+309"; 56 static final String NEG_DOUBLE_INF = "-1.79e+309"; 57 static final String DOUBLE_NAN = "abe+309"; 58 static final String WRONG_DOUBLE_1 = "1.79e+308e"; 59 static final String WRONG_DOUBLE_2 = "1.79ee+308"; 60 main(String args[])61 public static void main(String args[]) throws Exception { 62 // Pass cases 63 runG1ConcMarkStepDurationMillisTest(DOUBLE_1, PASS); 64 runG1ConcMarkStepDurationMillisTest(DOUBLE_MAX, PASS); 65 66 // Fail cases: out of range 67 runG1ConcMarkStepDurationMillisTest(DOUBLE_NEG_EXP, FAIL_OUT_RANGE); 68 runG1ConcMarkStepDurationMillisTest(NEG_DOUBLE_1, FAIL_OUT_RANGE); 69 70 // Fail cases: not double 71 runG1ConcMarkStepDurationMillisTest(DOUBLE_INF, FAIL_IMPROPER_VALUE); 72 runG1ConcMarkStepDurationMillisTest(NEG_DOUBLE_INF, FAIL_IMPROPER_VALUE); 73 runG1ConcMarkStepDurationMillisTest(DOUBLE_NAN, FAIL_IMPROPER_VALUE); 74 runG1ConcMarkStepDurationMillisTest(WRONG_DOUBLE_1, FAIL_IMPROPER_VALUE); 75 runG1ConcMarkStepDurationMillisTest(WRONG_DOUBLE_2, FAIL_IMPROPER_VALUE); 76 } 77 runG1ConcMarkStepDurationMillisTest(String expectedValue, int expectedResult)78 private static void runG1ConcMarkStepDurationMillisTest(String expectedValue, int expectedResult) throws Exception { 79 List<String> vmOpts = new ArrayList<>(); 80 81 Collections.addAll(vmOpts, "-XX:+UseG1GC", "-XX:G1ConcMarkStepDurationMillis="+expectedValue, "-XX:+PrintFlagsFinal", "-version"); 82 83 ProcessBuilder pb = GCArguments.createJavaProcessBuilder(vmOpts.toArray(new String[vmOpts.size()])); 84 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 85 86 output.shouldHaveExitValue(expectedResult == PASS ? 0 : 1); 87 String stdout = output.getStdout(); 88 if (expectedResult == PASS) { 89 checkG1ConcMarkStepDurationMillisConsistency(stdout, expectedValue); 90 } else if (expectedResult == FAIL_IMPROPER_VALUE) { 91 output.shouldContain("Improperly specified VM option"); 92 } else if (expectedResult == FAIL_OUT_RANGE) { 93 output.shouldContain("outside the allowed range"); 94 } 95 } 96 checkG1ConcMarkStepDurationMillisConsistency(String output, String expectedValue)97 private static void checkG1ConcMarkStepDurationMillisConsistency(String output, String expectedValue) { 98 double actualValue = getDoubleValue("G1ConcMarkStepDurationMillis", output); 99 100 if (Double.parseDouble(expectedValue) != actualValue) { 101 throw new RuntimeException( 102 "Actual G1ConcMarkStepDurationMillis(" + Double.toString(actualValue) 103 + ") is not equal to expected value(" + expectedValue + ")"); 104 } 105 } 106 getDoubleValue(String flag, String where)107 public static double getDoubleValue(String flag, String where) { 108 Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where); 109 if (!m.find()) { 110 throw new RuntimeException("Could not find value for flag " + flag + " in output string"); 111 } 112 String match = m.group(); 113 return Double.parseDouble(match.substring(match.lastIndexOf(" ") + 1, match.length())); 114 } 115 } 116