Class JNALoadTest

test/com/sun/jna/JNALoadTest.java:41–276

Test loading and unloading native support from various locations. Note that no JNI classes are directly referenced in these tests.

 * that no JNI classes are directly referenced in these tests.
 */
public class JNALoadTest extends TestCase implements Paths {

    private class TestLoader extends URLClassLoader {
        public TestLoader(boolean fromJar) throws MalformedURLException {
            super(new URL[]{
                Platform.isWindowsCE()
                ? new File("/Storage Card/" + (fromJar ? "jna.jar" : "test.jar")).toURI().toURL()
                    : new File(BUILDDIR + (fromJar ? "/jna.jar" : "/classes")).toURI().toURL()},
                new CloverLoader());
            if (fromJar) {
                assertJarExists();
            }
            else {
                assertLibraryExists();
            }
        }

        @Override
        protected Class<?> findClass(String name) throws ClassNotFoundException {
            String boot = System.getProperty("jna.boot.library.path");
            if (boot != null) {
                System.setProperty("jna.boot.library.path", "");
            }
            Class<?> cls = super.findClass(name);
            if (boot != null) {
                System.setProperty("jna.boot.library.path", boot);
            }
            return cls;
        }
    }

    protected void assertJarExists() {
        File jar = new File(JNAJAR);
        if (!jar.exists()) {
            throw new Error("Expected JNA jar file at " + jar + " is missing");
        }
    }

    protected void assertLibraryExists() {
        String osPrefix = Platform.getNativeLibraryResourcePrefix();
        String name = System.mapLibraryName("jnidispatch").replace(".dylib", ".jnilib");
        if(Platform.isAIX()) {
            name = name.replaceAll(".so$", ".a");
        }
        File lib = new File(CLASSES + "/com/sun/jna/" + osPrefix + "/" + name);
        if (!lib.exists()) {
            throw new Error("Expected JNA library at " + lib + " is missing");
        }
    }

    public void testAvoidJarUnpacking() throws Exception {
        System.setProperty("jna.nounpack", "true");
        try {
            Class<?> cls = Class.forName("com.sun.jna.Native", true, new TestLoader(true));

            fail("Class com.sun.jna.Native should not be loadable if jna.nounpack=true: "
                 + cls.getClassLoader());
        }