IdentityLoader<Object> loader = identityLoader();
    for (int i = 1; i < 1000; i++) {
      LoadingCache<Object, Object> cache = CacheBuilder.newBuilder().maximumSize(i).build(loader);
      assertEquals(i, CacheTesting.getTotalSegmentSize(cache));
    }
  }

  public void testEviction_setMaxSegmentWeight() {
    IdentityLoader<Object> loader = identityLoader();
    for (int i = 1; i < 1000; i++) {

    assertThrows(IllegalStateException.class, () -> builder.build(identityLoader()));
  }

  @GwtIncompatible // weigher
  public void testWeigher_withoutMaximumWeight() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().weigher(constantWeigher(42));
    assertThrows(IllegalStateException.class, () -> builder.build(identityLoader()));
  }

  @GwtIncompatible // weigher

    CacheLoader<Object, Object> loader = identityLoader();
    tester.testAllPublicInstanceMethods(makeCache(createCacheBuilder(), loader));
  }

  // stats tests

  public void testStats() {
    CacheBuilder<Object, Object> builder = createCacheBuilder().concurrencyLevel(1).maximumSize(2);
    LocalLoadingCache<Object, Object> cache = makeCache(builder, identityLoader());
    assertEquals(EMPTY_STATS, cache.stats());

    CacheLoader<Object, Object> loader = identityLoader();
    tester.testAllPublicInstanceMethods(makeCache(createCacheBuilder(), loader));
  }

  // stats tests

  public void testStats() {
    CacheBuilder<Object, Object> builder = createCacheBuilder().concurrencyLevel(1).maximumSize(2);
    LocalLoadingCache<Object, Object> cache = makeCache(builder, identityLoader());
    assertEquals(EMPTY_STATS, cache.stats());

      // all caches should be different: instance equality
      new EqualsTester()
          .addEqualityGroup(builder.build(identityLoader()))
          .addEqualityGroup(builder.build(identityLoader()))
          .addEqualityGroup(builder.build(identityLoader()))
          .testEquals();
    }
  }

  public void testGet_null() throws ExecutionException {

      // all caches should be different: instance equality
      new EqualsTester()
          .addEqualityGroup(builder.build(identityLoader()))
          .addEqualityGroup(builder.build(identityLoader()))
          .addEqualityGroup(builder.build(identityLoader()))
          .testEquals();
    }
  }

  public void testGet_null() throws ExecutionException {

package com.google.common.cache;

import static com.google.common.cache.CacheTesting.checkEmpty;
import static com.google.common.cache.CacheTesting.checkValidState;
import static com.google.common.cache.TestingCacheLoaders.identityLoader;
import static com.google.common.truth.Truth.assertThat;
import static java.util.concurrent.TimeUnit.DAYS;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.junit.Assert.assertThrows;

package com.google.common.cache;

import static com.google.common.cache.CacheTesting.checkEmpty;
import static com.google.common.cache.CacheTesting.checkValidState;
import static com.google.common.cache.TestingCacheLoaders.identityLoader;
import static com.google.common.truth.Truth.assertThat;
import static java.util.concurrent.TimeUnit.DAYS;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.junit.Assert.assertThrows;