This has a number of negative effects on productivity, including:

- Unclear ownership of code.
- Difficult to focus on one particular area.
- Unintended coupling between areas of the code, including tests.

## Decision

Organize the Gradle code base into a set of coarse-grained "architecture modules".
An architecture module is responsible for providing a coherent set of features and:

    suite.addTestSuite(MutableTypeToInstanceMapTest.class);

    suite.addTest(
        MapTestSuiteBuilder.using(
                new TestTypeToInstanceMapGenerator() {
                  // Other tests will verify what real, warning-free usage looks like
                  // but here we have to do some serious fudging
                  @Override
                  @SuppressWarnings({"unchecked", "rawtypes"})

import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.TestCase;

/** Unit tests for CacheBuilder. */
@GwtCompatible(emulated = true)
// We are intentionally testing the TimeUnit overloads, too.
@SuppressWarnings("LongTimeUnit_ExpireAfterWrite_Seconds")
public class CacheBuilderTest extends TestCase {

		latency:        make([]atomic.Uint64, len(defaultLatencyBuckets)),
		conn: &StubKMS{
			KeyNames: []string{defaultKeyName},
		},
	}
}

// StubKMS is a KMS implementation for tests
type StubKMS struct {
	KeyNames []string
}

// Version returns the type of the KMS.
func (s StubKMS) Version(ctx context.Context) (string, error) {
	return "stub", nil
}

// APIs returns supported APIs

class HttpDateTest {
  private lateinit var originalDefault: TimeZone

  @BeforeEach
  fun setUp() {
    originalDefault = TimeZone.getDefault()
    // The default timezone should affect none of these tests: HTTP specified GMT, so we set it to
    // something else.
    TimeZone.setDefault(TimeZone.getTimeZone("America/Los_Angeles"))
  }

  @AfterEach
  @Throws(Exception::class)
  fun tearDown() {

import java.util.List;
import java.util.SortedSet;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@code ForwardingSortedSet}.
 *
 * @author Louis Wasserman
 */
public class ForwardingSortedSetTest extends TestCase {
  static class StandardImplForwardingSortedSet<T> extends ForwardingSortedSet<T> {

import java.io.ByteArrayOutputStream;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
import junit.framework.TestCase;

/** Tests for AbstractNonStreamingHashFunction. */
public class AbstractNonStreamingHashFunctionTest extends TestCase {
  /**
   * Constructs two trivial HashFunctions (output := input), one streaming and one non-streaming,

import java.util.Collections;
import java.util.List;
import java.util.Random;
import java.util.RandomAccess;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for repeated node and edge addition and removal in a {@link Network}. */
@RunWith(JUnit4.class)

public final class NetworkMutationTest {
  private static final int NUM_TRIALS = 5;
  private static final int NUM_NODES = 20;

import java.util.Collection;
import java.util.Set;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@code ForwardingSet}.
 *
 * @author Robert Konigsberg
 * @author Louis Wasserman
 */
public class ForwardingSetTest extends TestCase {
  static class StandardImplForwardingSet<T> extends ForwardingSet<T> {

        final ExtractData text = extractor.getText(new ByteArrayInputStream(testStr.getBytes()), params);
        assertEquals(content, text.getContent());
    }

    // TODO other tests

    static class TestApiExtractorServer {
        private Server server;

        public TestApiExtractorServer(final int port) {
            server = new Server(port);