test/langtools/tools/javap/typeAnnotations/AnnotationDefaultNewlineTest.java

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/*
 * @test
 * @bug 8041793
 * @summary Verify that javap prints newline character after AnnotationDefault value
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.main
 *          jdk.jdeps/com.sun.tools.javap
 * @build toolbox.ToolBox toolbox.JavacTask toolbox.JavapTask toolbox.Assert
 * @run main AnnotationDefaultNewlineTest
 */

import java.util.Collections;
import java.util.List;

import toolbox.Assert;
import toolbox.JavacTask;
import toolbox.JavapTask;
import toolbox.Task;
import toolbox.ToolBox;

public class AnnotationDefaultNewlineTest {

    private static final String TestSrc =
            "public @interface AnnotationDefault { \n" +
                "public abstract int value() default 1; \n" +
            "}";

    private static final String ExpectedSubstring =
            "    AnnotationDefault:\n" +
            "      default_value: I#7\n";

    public static void main(String[] args) throws Exception {
        ToolBox tb = new ToolBox();
        new JavacTask(tb).sources(TestSrc).run();

        List<String> res = new JavapTask(tb)
                .options("-v")
                .classes("AnnotationDefault.class")
                .run()
                .getOutputLines(Task.OutputKind.DIRECT);

        List<String> goldenList = tb.split(ExpectedSubstring, "\n");
        Boolean found = Collections.indexOfSubList(res, goldenList) > -1;

        Assert.check(found, "expected output not found: " + ExpectedSubstring);
    }
}