java-topology/test/jdk/java/lang/constant/DynamicCallSiteDescTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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import java.lang.constant.*;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

/*
 * @test
 * @compile DynamicCallSiteDescTest.java
 * @run junit DynamicCallSiteDescTest
 * @summary unit tests for java.lang.constant.DynamicCallSiteDesc
 */

public class DynamicCallSiteDescTest extends SymbolicDescTest {
    /* note there is no unit test for method resolveCallSiteDesc as it is being tested in another test in this
     * suite, IndyDescTest
     */

    @Test
    public void testOf() throws ReflectiveOperationException {
        DirectMethodHandleDesc dmh = ConstantDescs.ofCallsiteBootstrap(
                ClassDesc.of("BootstrapAndTarget"),
                "bootstrap",
                ClassDesc.of("java.lang.invoke.CallSite")
        );
        assertThrows(IllegalArgumentException.class, () -> DynamicCallSiteDesc.of(
                dmh,
                "",
                MethodTypeDesc.ofDescriptor("()I")
        ));

        assertThrows(NullPointerException.class, () -> DynamicCallSiteDesc.of(
                null,
                "getTarget",
                MethodTypeDesc.ofDescriptor("()I")
        ));

        assertThrows(NullPointerException.class, () -> DynamicCallSiteDesc.of(
                dmh,
                null,
                MethodTypeDesc.ofDescriptor("()I")
        ));

        assertThrows(NullPointerException.class, () -> DynamicCallSiteDesc.of(
                dmh,
                "getTarget",
                null
        ));

        assertThrows(NullPointerException.class, () -> DynamicCallSiteDesc.of(
                dmh,
                "getTarget",
                MethodTypeDesc.ofDescriptor("()I"),
                null
        ));

        assertThrows(NullPointerException.class, () -> DynamicCallSiteDesc.of(
                dmh,
                "getTarget",
                MethodTypeDesc.ofDescriptor("()I"),
                new ConstantDesc[]{ null }
        ));
    }

    @Test
    public void testWithArgs() throws ReflectiveOperationException {
        DynamicCallSiteDesc desc = DynamicCallSiteDesc.of(ConstantDescs.ofCallsiteBootstrap(
                ClassDesc.of("BootstrapAndTarget"),
                "bootstrap",
                ClassDesc.of("java.lang.invoke.CallSite")
            ),
            "getTarget",
            MethodTypeDesc.ofDescriptor("()I")
        );

        assertThrows(NullPointerException.class, () -> desc.withArgs(null));
        assertThrows(NullPointerException.class, () -> desc.withArgs(new ConstantDesc[]{ null }));
    }

    @Test
    public void testWithNameAndType() throws ReflectiveOperationException {
        DynamicCallSiteDesc desc = DynamicCallSiteDesc.of(ConstantDescs.ofCallsiteBootstrap(
                ClassDesc.of("BootstrapAndTarget"),
                "bootstrap",
                ClassDesc.of("java.lang.invoke.CallSite")
                ),
                "getTarget",
                MethodTypeDesc.ofDescriptor("()I")
        );

        assertThrows(NullPointerException.class, () -> desc.withNameAndType(null, MethodTypeDesc.ofDescriptor("()I")));
        assertThrows(NullPointerException.class, () -> desc.withNameAndType("bootstrap", null));
    }

    @Test
    public void testAccessorsAndFactories() throws ReflectiveOperationException {
        DynamicCallSiteDesc desc = DynamicCallSiteDesc.of(ConstantDescs.ofCallsiteBootstrap(
                ClassDesc.of("BootstrapAndTarget"),
                "bootstrap",
                ClassDesc.of("java.lang.invoke.CallSite")
                ),
                "_",
                MethodTypeDesc.ofDescriptor("()I")
        );
        assertEquals(desc, DynamicCallSiteDesc.of((DirectMethodHandleDesc)desc.bootstrapMethod(), desc.invocationType()));
        assertEquals(desc, DynamicCallSiteDesc.of((DirectMethodHandleDesc)desc.bootstrapMethod(),
                desc.invocationName(), desc.invocationType()));
        assertEquals(desc, DynamicCallSiteDesc.of((DirectMethodHandleDesc)desc.bootstrapMethod(),
                desc.invocationName(), desc.invocationType(), desc.bootstrapArgs()));
    }
}