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23
24
25 // This is the main test class for testing transformation of related classes
26 // in combination with CDS, to ensure these features work well together.
27 // The relationships that can be tested using this test class are:
28 // superclass/subclass, and interface/implementor relationships.
29 //
30 // The test uses combinatorial approach.
31 // For details on test table and test cases see main() method in this class.
32 //
33 // This test consists of multiple classes for better flexibility and reuse,
34 // and also relies on certain common utility code.
35 // Here are the details on the structure of the test
36 //
37 // Structure of the test:
38 // TransformRelatedClasses -- common main test driver
39 // The TransformRelatedClasses is invoked from test driver classes:
40 // TransformInterfaceAndImplementor, TransformSuperAndSubClasses.java
41 // It is responsible for preparing test artifacts (test jar, agent jar
42 // the shared archive), running test cases and checking the results.
43 // The following test classes below are launched in a sub-process with use
44 // of shared archive:
45 // SuperClazz, SubClass -- super/sub class pair under test
46 // Interface, Implementor -- classes under test
47 // This test will transform these classes, based on the test case data,
48 // by changing a predefined unique string in each class.
49 // For more details, see the test classes code and comments.
50 //
51 // Other related classes:
52 // TestEntry - a class representing a single test case, as test entry in the table
53 // TransformTestCommon.java - common methods for transformation test cases
54 //
55 // Other utility/helper classes used in this test:
56 // TransformerAgent -- an agent that is used when JVM-under-test is executed
57 // to transform specific strings inside specified classes
58 // TransformerAgent.mf - accompanies transformer agent
59 // CDSTestUtils.java - Test Utilities common to all CDS tests
60
61 import java.io.File;
62 import java.util.ArrayList;
63 import jdk.test.lib.process.OutputAnalyzer;
64 import jdk.test.lib.process.ProcessTools;
65
66
67 public class TransformRelatedClasses {
68 static final String archiveName = "./TransformRelatedClasses.jsa";
69 static String agentClasses[] = {
70 "TransformerAgent",
71 "TransformerAgent$SimpleTransformer",
72 "TransformUtil"
73 };
74
75 String parent;
76 String child;
77 String[] testClasses = new String[2];
78 String[] testNames = new String[2];
79 String testJar;
80 String agentJar;
81
82
83 private static void log(String msg) {
84 System.out.println("TransformRelatedClasses: " + msg);
85 }
86
87
88 // This class is intended to test 2 parent-child relationships:
89 // 1. Base Class (parent) and Derived Class (child)
90 // 2. Interface (parent) and Implementor (child)
91 // Parameters to main(): parent, child
92 public static void main(String args[]) throws Exception {
93 TransformRelatedClasses test = new TransformRelatedClasses(args[0], args[1]);
94 test.prepare();
95
96 // Test Table
97 // testCaseId | transformParent | tranformChild | isParentExpectedShared | isChildExpectedShared
98 ArrayList<TestEntry> testTable = new ArrayList<>();
99
100 // base case - no tranformation - all expected to be shared
101 testTable.add(new TestEntry(0, false, false, true, true));
102
103 // transform parent only - both parent and child should not be shared
104 testTable.add(new TestEntry(1, true, false, false, false));
105
106 // transform parent and child - both parent and child should not be shared
107 testTable.add(new TestEntry(2, true, true, false, false));
108
109 // transform child only - parent should still be shared, but not child
110 testTable.add(new TestEntry(3, false, true, true, false));
111
112 // run the tests
113 for (TestEntry entry : testTable) {
114 test.runTest(entry);
115 }
116 }
117
118
119 public TransformRelatedClasses(String parent, String child) {
120 log("Constructor: parent = " + parent + ", child = " + child);
121 this.parent = parent;
122 this.child = child;
123 testClasses[0] = parent;
124 testClasses[1] = child;
125 testNames[0] = parent.replace('.', '/');
126 testNames[1] = child.replace('.', '/');
127 }
128
129
130 // same test jar and archive can be used for all test cases
131 private void prepare() throws Exception {
132 // create agent jar
133 // Agent is the same for all test cases
134 String pathToManifest = "../../../../testlibrary/jvmti/TransformerAgent.mf";
135 agentJar = ClassFileInstaller.writeJar("TransformerAgent.jar",
136 ClassFileInstaller.Manifest.fromSourceFile(pathToManifest),
137 agentClasses);
138
139 // create a test jar
140 testJar =
141 ClassFileInstaller.writeJar(parent + "-" + child + ".jar",
142 testClasses);
143
144 // create an archive
145 File classList = CDSTestUtils.makeClassList("transform-" + parent,
146 testNames);
147 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true,
148 "-Xbootclasspath/a:" + testJar,
149 "-XX:+UnlockDiagnosticVMOptions",
150 "-XX:ExtraSharedClassListFile=" +
151 classList.getPath(),
152 "-XX:SharedArchiveFile=" + archiveName,
153 "-XX:+PrintSharedSpaces",
154 "-Xshare:dump");
155 OutputAnalyzer out = new OutputAnalyzer(pb.start());
156 CDSTestUtils.checkDump(out);
157 }
158
159
160 private void runTest(TestEntry entry) throws Exception {
161 log("runTest(): testCaseId = " + entry.testCaseId);
162
163 // execute with archive
164 String agentParam = "-javaagent:" + agentJar + "=" +
165 TransformTestCommon.getAgentParams(entry, parent, child);
166
167 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true,
168 "-Xbootclasspath/a:" + testJar,
169 "-XX:+UnlockDiagnosticVMOptions",
170 "-XX:SharedArchiveFile=" + archiveName,
171 "-Xlog:class+load=info",
172 "-Xshare:on", "-showversion",
173 agentParam, child);
174 OutputAnalyzer out = new OutputAnalyzer(pb.start());
175
176 TransformTestCommon.checkResults(entry, out, parent, child);
177 }
178 }