1 /* 2 * Copyright (c) 2015, 2016, 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 /* 25 * @test TestG1ConcMarkStepDurationMillis 26 * @key gc 27 * @requires vm.gc.G1 28 * @summary Tests argument processing for double type flag, G1ConcMarkStepDurationMillis 29 * @library /test/lib 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 */ 33 34 import jdk.test.lib.process.ProcessTools; 35 import jdk.test.lib.process.OutputAnalyzer; 36 import java.util.*; 37 import java.util.regex.*; 38 39 public class TestG1ConcMarkStepDurationMillis { 40 41 static final int PASS = 0; 42 static final int FAIL_IMPROPER_VALUE = 1; 43 static final int FAIL_OUT_RANGE = 2; 44 45 static final String DOUBLE_1 = "1.0"; 46 static final String DOUBLE_MAX = "1.79e+308"; 47 48 static final String DOUBLE_NEG_EXP = "1.0e-30"; 49 static final String NEG_DOUBLE_1 = "-1.0"; 50 51 static final String DOUBLE_INF = "1.79e+309"; 52 static final String NEG_DOUBLE_INF = "-1.79e+309"; 53 static final String DOUBLE_NAN = "abe+309"; 54 static final String WRONG_DOUBLE_1 = "1.79e+308e"; 55 static final String WRONG_DOUBLE_2 = "1.79ee+308"; 56 57 public static void main(String args[]) throws Exception { 58 // Pass cases 59 runG1ConcMarkStepDurationMillisTest(DOUBLE_1, PASS); 60 runG1ConcMarkStepDurationMillisTest(DOUBLE_MAX, PASS); 61 62 // Fail cases: out of range 63 runG1ConcMarkStepDurationMillisTest(DOUBLE_NEG_EXP, FAIL_OUT_RANGE); 64 runG1ConcMarkStepDurationMillisTest(NEG_DOUBLE_1, FAIL_OUT_RANGE); 65 66 // Fail cases: not double 67 runG1ConcMarkStepDurationMillisTest(DOUBLE_INF, FAIL_IMPROPER_VALUE); 68 runG1ConcMarkStepDurationMillisTest(NEG_DOUBLE_INF, FAIL_IMPROPER_VALUE); 69 runG1ConcMarkStepDurationMillisTest(DOUBLE_NAN, FAIL_IMPROPER_VALUE); 70 runG1ConcMarkStepDurationMillisTest(WRONG_DOUBLE_1, FAIL_IMPROPER_VALUE); 71 runG1ConcMarkStepDurationMillisTest(WRONG_DOUBLE_2, FAIL_IMPROPER_VALUE); 72 } 73 74 private static void runG1ConcMarkStepDurationMillisTest(String expectedValue, int expectedResult) throws Exception { 75 List<String> vmOpts = new ArrayList<>(); 76 77 Collections.addAll(vmOpts, "-XX:+UseG1GC", "-XX:G1ConcMarkStepDurationMillis="+expectedValue, "-XX:+PrintFlagsFinal", "-version"); 78 79 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(vmOpts.toArray(new String[vmOpts.size()])); 80 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 81 82 output.shouldHaveExitValue(expectedResult == PASS ? 0 : 1); 83 String stdout = output.getStdout(); 84 if (expectedResult == PASS) { 85 checkG1ConcMarkStepDurationMillisConsistency(stdout, expectedValue); 86 } else if (expectedResult == FAIL_IMPROPER_VALUE) { 87 output.shouldContain("Improperly specified VM option"); 88 } else if (expectedResult == FAIL_OUT_RANGE) { 89 output.shouldContain("outside the allowed range"); 90 } 91 } 92 93 private static void checkG1ConcMarkStepDurationMillisConsistency(String output, String expectedValue) { 94 double actualValue = getDoubleValue("G1ConcMarkStepDurationMillis", output); 95 96 if (Double.parseDouble(expectedValue) != actualValue) { 97 throw new RuntimeException( 98 "Actual G1ConcMarkStepDurationMillis(" + Double.toString(actualValue) 99 + ") is not equal to expected value(" + expectedValue + ")"); 100 } 101 } 102 103 public static double getDoubleValue(String flag, String where) { 104 Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where); 105 if (!m.find()) { 106 throw new RuntimeException("Could not find value for flag " + flag + " in output string"); 107 } 108 String match = m.group(); 109 return Double.parseDouble(match.substring(match.lastIndexOf(" ") + 1, match.length())); 110 } 111 }