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 import com.oracle.java.testlibrary.Asserts;
  25 import com.oracle.java.testlibrary.Platform;
  26 
  27 import java.lang.reflect.InvocationTargetException;
  28 import java.lang.reflect.Method;
  29 import java.util.Arrays;
  30 import java.util.Collections;
  31 import java.util.EnumSet;
  32 import java.util.HashSet;
  33 import java.util.List;
  34 import java.util.Set;
  35 
  36 /**
  37  * @test
  38  * @summary Verify that for each group of mutually exclusive predicates defined
  39  *          in com.oracle.java.testlibrary.Platform one and only one predicate
  40  *          evaluates to true.
  41  * @library /testlibrary
  42  * @modules java.base/sun.misc
  43  *          java.management
  44  * @run main TestMutuallyExclusivePlatformPredicates
  45  */
  46 public class TestMutuallyExclusivePlatformPredicates {
  47     private static enum MethodGroup {
  48         ARCH("isARM", "isPPC", "isSparc", "isX86", "isX64"),
  49         BITNESS("is32bit", "is64bit"),
  50         OS("isAix", "isLinux", "isOSX", "isSolaris", "isWindows"),
  51         VM_TYPE("isClient", "isServer", "isGraal", "isMinimal", "isZero"),
  52         IGNORED("isEmbedded", "isDebugBuild", "shouldSAAttach",
  53                 "canPtraceAttachLinux", "canAttachOSX", "isTieredSupported");
  54 
  55         public final List<String> methodNames;
  56 
  57         private MethodGroup(String... methodNames) {
  58             this.methodNames = Collections.unmodifiableList(
  59                     Arrays.asList(methodNames));
  60         }
  61     }
  62 
  63     public static void main(String args[]) {
  64         EnumSet<MethodGroup> notIgnoredMethodGroups
  65                 = EnumSet.complementOf(EnumSet.of(MethodGroup.IGNORED));
  66 
  67         notIgnoredMethodGroups.forEach(
  68                 TestMutuallyExclusivePlatformPredicates::verifyPredicates);
  69 
  70         TestMutuallyExclusivePlatformPredicates.verifyCoverage();
  71     }
  72 
  73     /**
  74      * Verifies that one and only one predicate method defined in
  75      * {@link com.oracle.java.testlibrary.Platform}, whose name included into
  76      * methodGroup will return {@code true}.
  77      * @param methodGroup The group of methods that should be tested.
  78      */
  79     private static void verifyPredicates(MethodGroup methodGroup) {
  80         System.out.println("Verifying method group: " + methodGroup.name());
  81         long truePredicatesCount = methodGroup.methodNames.stream()
  82                 .filter(TestMutuallyExclusivePlatformPredicates
  83                         ::evaluatePredicate)
  84                 .count();
  85 
  86         Asserts.assertEQ(truePredicatesCount, 1L, String.format(
  87                 "Only one predicate from group %s should be evaluated to true "
  88                         + "(Actually %d predicates were evaluated to true).",
  89                 methodGroup.name(), truePredicatesCount));
  90     }
  91 
  92     /**
  93      * Verifies that all predicates defined in
  94      * {@link com.oracle.java.testlibrary.Platform} were either tested or
  95      * explicitly ignored.
  96      */
  97     private static void verifyCoverage() {
  98         Set<String> allMethods = new HashSet<>();
  99         for (MethodGroup group : MethodGroup.values()) {
 100             allMethods.addAll(group.methodNames);
 101         }
 102 
 103         for (Method m : Platform.class.getMethods()) {
 104             if (m.getParameterCount() == 0
 105                     && m.getReturnType() == boolean.class) {
 106                 Asserts.assertTrue(allMethods.contains(m.getName()),
 107                         "All Platform's methods with signature '():Z' should "
 108                                 + "be tested ");
 109             }
 110         }
 111     }
 112 
 113     /**
 114      * Evaluates predicate method with name {@code name} defined in
 115      * {@link com.oracle.java.testlibrary.Platform}.
 116      *
 117      * @param name The name of a predicate to be evaluated.
 118      * @return evaluated predicate's value.
 119      * @throws java.lang.Error if predicate is not defined or could not be
 120      *                         evaluated.
 121      */
 122     private static boolean evaluatePredicate(String name) {
 123         try {
 124             System.out.printf("Trying to evaluate predicate with name %s%n",
 125                     name);
 126             boolean value
 127                     = (Boolean) Platform.class.getMethod(name).invoke(null);
 128             System.out.printf("Predicate evaluated to: %s%n", value);
 129             return value;
 130         } catch (NoSuchMethodException e) {
 131             throw new Error("Predicate with name " + name
 132                     + " is not defined in " + Platform.class.getName(), e);
 133         } catch (IllegalAccessException | InvocationTargetException e) {
 134             throw new Error("Unable to evaluate predicate " + name, e);
 135         }

   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 import jdk.test.lib.Asserts;
  25 import jdk.test.lib.Platform;
  26 
  27 import java.lang.reflect.InvocationTargetException;
  28 import java.lang.reflect.Method;
  29 import java.util.Arrays;
  30 import java.util.Collections;
  31 import java.util.EnumSet;
  32 import java.util.HashSet;
  33 import java.util.List;
  34 import java.util.Set;
  35 
  36 /**
  37  * @test
  38  * @summary Verify that for each group of mutually exclusive predicates defined
  39  *          in jdk.test.lib.Platform one and only one predicate
  40  *          evaluates to true.
  41  * @library /testlibrary
  42  * @modules java.base/sun.misc
  43  *          java.management
  44  * @run main TestMutuallyExclusivePlatformPredicates
  45  */
  46 public class TestMutuallyExclusivePlatformPredicates {
  47     private static enum MethodGroup {
  48         ARCH("isARM", "isPPC", "isSparc", "isX86", "isX64"),
  49         BITNESS("is32bit", "is64bit"),
  50         OS("isAix", "isLinux", "isOSX", "isSolaris", "isWindows"),
  51         VM_TYPE("isClient", "isServer", "isGraal", "isMinimal", "isZero"),
  52         IGNORED("isEmbedded", "isDebugBuild", "shouldSAAttach",
  53                 "canPtraceAttachLinux", "canAttachOSX", "isTieredSupported");
  54 
  55         public final List<String> methodNames;
  56 
  57         private MethodGroup(String... methodNames) {
  58             this.methodNames = Collections.unmodifiableList(
  59                     Arrays.asList(methodNames));
  60         }
  61     }
  62 
  63     public static void main(String args[]) {
  64         EnumSet<MethodGroup> notIgnoredMethodGroups
  65                 = EnumSet.complementOf(EnumSet.of(MethodGroup.IGNORED));
  66 
  67         notIgnoredMethodGroups.forEach(
  68                 TestMutuallyExclusivePlatformPredicates::verifyPredicates);
  69 
  70         TestMutuallyExclusivePlatformPredicates.verifyCoverage();
  71     }
  72 
  73     /**
  74      * Verifies that one and only one predicate method defined in
  75      * {@link jdk.test.lib.Platform}, whose name included into
  76      * methodGroup will return {@code true}.
  77      * @param methodGroup The group of methods that should be tested.
  78      */
  79     private static void verifyPredicates(MethodGroup methodGroup) {
  80         System.out.println("Verifying method group: " + methodGroup.name());
  81         long truePredicatesCount = methodGroup.methodNames.stream()
  82                 .filter(TestMutuallyExclusivePlatformPredicates
  83                         ::evaluatePredicate)
  84                 .count();
  85 
  86         Asserts.assertEQ(truePredicatesCount, 1L, String.format(
  87                 "Only one predicate from group %s should be evaluated to true "
  88                         + "(Actually %d predicates were evaluated to true).",
  89                 methodGroup.name(), truePredicatesCount));
  90     }
  91 
  92     /**
  93      * Verifies that all predicates defined in
  94      * {@link jdk.test.lib.Platform} were either tested or
  95      * explicitly ignored.
  96      */
  97     private static void verifyCoverage() {
  98         Set<String> allMethods = new HashSet<>();
  99         for (MethodGroup group : MethodGroup.values()) {
 100             allMethods.addAll(group.methodNames);
 101         }
 102 
 103         for (Method m : Platform.class.getMethods()) {
 104             if (m.getParameterCount() == 0
 105                     && m.getReturnType() == boolean.class) {
 106                 Asserts.assertTrue(allMethods.contains(m.getName()),
 107                         "All Platform's methods with signature '():Z' should "
 108                                 + "be tested ");
 109             }
 110         }
 111     }
 112 
 113     /**
 114      * Evaluates predicate method with name {@code name} defined in
 115      * {@link jdk.test.lib.Platform}.
 116      *
 117      * @param name The name of a predicate to be evaluated.
 118      * @return evaluated predicate's value.
 119      * @throws java.lang.Error if predicate is not defined or could not be
 120      *                         evaluated.
 121      */
 122     private static boolean evaluatePredicate(String name) {
 123         try {
 124             System.out.printf("Trying to evaluate predicate with name %s%n",
 125                     name);
 126             boolean value
 127                     = (Boolean) Platform.class.getMethod(name).invoke(null);
 128             System.out.printf("Predicate evaluated to: %s%n", value);
 129             return value;
 130         } catch (NoSuchMethodException e) {
 131             throw new Error("Predicate with name " + name
 132                     + " is not defined in " + Platform.class.getName(), e);
 133         } catch (IllegalAccessException | InvocationTargetException e) {
 134             throw new Error("Unable to evaluate predicate " + name, e);
 135         }