test/jdk/java/lang/invoke/condy/CondyNameValidationTest.java

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/*
 * @test
 * @bug 8186046
 * @summary Test invalid name in name and type
 * @library /java/lang/invoke/common
 * @build test.java.lang.invoke.lib.InstructionHelper
 * @run testng CondyNameValidationTest
 * @run testng/othervm -XX:+UnlockDiagnosticVMOptions -XX:UseBootstrapCallInfo=3 CondyNameValidationTest
 */

import org.testng.Assert;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import test.java.lang.invoke.lib.InstructionHelper;

import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.util.stream.Stream;

import static java.lang.invoke.MethodType.methodType;

public class CondyNameValidationTest {
    static final MethodHandles.Lookup L = MethodHandles.lookup();
    static final MethodType BSM_TYPE = methodType(Object.class, MethodHandles.Lookup.class, String.class, Object.class);

    @DataProvider
    public Object[][] invalidNamesProvider() {
        return Stream.of(
                        new Object[]{"", "zero-length member name"},
                        new Object[]{".", "Invalid member name"},
                        new Object[]{";", "Invalid member name"},
                        new Object[]{"[", "Invalid member name"},
                        new Object[]{"/", "Invalid member name"}
                )
                .toArray(Object[][]::new);
    }

    @Test(dataProvider = "invalidNamesProvider")
    public void testInvalidNames(String name, String errMessContent) throws Exception {
        try {
            MethodHandle mh = InstructionHelper.ldcDynamicConstant(
                    L, name, Object.class,
                    "bsm", BSM_TYPE
            );
        } catch (IllegalArgumentException e) {
            Assert.assertTrue(e.getMessage().contains(errMessContent));
        }
    }

    @DataProvider
    public Object[][] validNamesProvider() throws Exception {
        return Stream.of("<clinit>",
                        "<init>")
                .map(e -> new Object[]{e}).toArray(Object[][]::new);
    }

    @Test(dataProvider = "validNamesProvider")
    public void testValidNames(String name) throws Exception {
        MethodHandle mh = InstructionHelper.ldcDynamicConstant(
                L, name, Object.class,
                "bsm", BSM_TYPE
        );
    }
}