default:
		fatal("unknown test %q", os.Args[1])
	case "Call":
		testCall()
	case "Callback":
		testCallback()
	}
	println("OK")
}

func fatal(f string, args ...any) {
	fmt.Fprintln(os.Stderr, fmt.Sprintf(f, args...))
	os.Exit(1)
}

type GoCallback struct{}

func (p *GoCallback) Run() string {
	return "GoCallback.Run"
}

func testCall() {
	c := NewCaller()
	cb := NewCallback()

/**
 * Tests for {@link RelationshipTester}.
 *
 * @author Ben Yu
 */
public class RelationshipTesterTest extends TestCase {

  public void testNulls() {
    new ClassSanityTester()
        .setDefault(ItemReporter.class, new ItemReporter())
        .testNulls(RelationshipTester.class);
  }

import org.junit.jupiter.api.extension.ExtensionContext
import org.junit.rules.TestRule
import org.junit.runner.Description
import org.junit.runners.model.Statement

/**
 * A log handler that records which log messages were published so that a calling test can make
 * assertions about them.
 */
class TestLogHandler(
  private val logger: Logger,
) : TestRule, BeforeEachCallback, AfterEachCallback {

    setDistinctValues(Network.class, IMMUTABLE_NETWORK_A, IMMUTABLE_NETWORK_B);
    setDefault(EndpointPair.class, EndpointPair.ordered("A", "B"));
  }

  @Override
  public void testNulls() throws Exception {
    try {
      super.testNulls();
    } catch (AssertionFailedError e) {
      assertWithMessage("Method did not throw null pointer OR element not in graph exception.")
          .that(e)
          .hasCauseThat()

import java.lang.reflect.Method;
import junit.framework.TestCase;

/**
 * Tests for {@link Parameter}.
 *
 * @author Ben Yu
 */
public class ParameterTest extends TestCase {

  public void testNulls() {
    try {
      Class.forName("java.lang.reflect.AnnotatedType");
    } catch (ClassNotFoundException runningInAndroidVm) {
      /*

   * version, which checks package-private methods that we don't want to have to annotate as {@code
   * Nullable} because we don't want diffs from jsr166e.
   */
  public void testNulls() {}

  public void testOverflows() {
    LongAdder longAdder = new LongAdder();
    longAdder.add(Long.MAX_VALUE);
    assertThat(longAdder.sum()).isEqualTo(Long.MAX_VALUE);
    longAdder.add(1);

    Integer newValue = map.getInstance(Integer.class);
    assertEquals(7, (int) newValue);

    // Won't compile: map.putInstance(Double.class, new Long(42));
  }

  public void testNull() {
    assertThrows(NullPointerException.class, () -> map.put(null, new Integer(1)));
    map.putInstance(Integer.class, null);
    assertNull(map.get(Integer.class));
    assertNull(map.getInstance(Integer.class));

    Integer newValue = map.getInstance(Integer.class);
    assertEquals(7, (int) newValue);

    // Won't compile: map.putInstance(Double.class, new Long(42));
  }

  public void testNull() {
    assertThrows(NullPointerException.class, () -> map.put(null, new Integer(1)));
    map.putInstance(Integer.class, null);
    assertNull(map.get(Integer.class));
    assertNull(map.getInstance(Integer.class));

    assertTrue(filter.accept(dir, "aaaa"));
    assertFalse(filter.accept(dir, "b"));

    // Show that dir is ignored
    assertTrue(filter.accept(null, "a"));
  }

  public void testNulls() throws Exception {
    NullPointerTester tester = new NullPointerTester();

    tester.testConstructors(PatternFilenameFilter.class, Visibility.PACKAGE);

      fail();
    } catch (NullPointerException expected) {
    }
  }

  // ToStringHelper's tests are in ToStringHelperTest

  @J2ktIncompatible
  @GwtIncompatible("NullPointerTester")
  public void testNulls() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    tester.ignore(MoreObjects.class.getMethod("firstNonNull", Object.class, Object.class));
    tester.testAllPublicStaticMethods(MoreObjects.class);