}
  }

  public void testEnsureCapacity() {
    assertThat(Doubles.ensureCapacity(EMPTY, 0, 1)).isSameInstanceAs(EMPTY);
    assertThat(Doubles.ensureCapacity(ARRAY1, 0, 1)).isSameInstanceAs(ARRAY1);
    assertThat(Doubles.ensureCapacity(ARRAY1, 1, 1)).isSameInstanceAs(ARRAY1);
    assertThat(
            Arrays.equals(
                new double[] {(double) 1, (double) 0, (double) 0},

    }
  }

  public void testEnsureCapacity() {
    assertThat(Booleans.ensureCapacity(EMPTY, 0, 1)).isSameInstanceAs(EMPTY);
    assertThat(Booleans.ensureCapacity(ARRAY_FALSE, 0, 1)).isSameInstanceAs(ARRAY_FALSE);
    assertThat(Booleans.ensureCapacity(ARRAY_FALSE, 1, 1)).isSameInstanceAs(ARRAY_FALSE);
    assertThat(Booleans.ensureCapacity(new boolean[] {true}, 2, 1))
        .isEqualTo(new boolean[] {true, false, false});

    }
  }

  public void testEnsureCapacity() {
    assertThat(Bytes.ensureCapacity(EMPTY, 0, 1)).isSameInstanceAs(EMPTY);
    assertThat(Bytes.ensureCapacity(ARRAY1, 0, 1)).isSameInstanceAs(ARRAY1);
    assertThat(Bytes.ensureCapacity(ARRAY1, 1, 1)).isSameInstanceAs(ARRAY1);
    assertThat(Bytes.ensureCapacity(ARRAY1, 2, 1))
        .isEqualTo(new byte[] {(byte) 1, (byte) 0, (byte) 0});
  }

      getDone(future);
      fail();
    } catch (ExecutionException e) {
      assertThat(e.getCause()).isSameInstanceAs(expectedException);
    }

    try {
      getDoneFromTimeoutOverload(future);
      fail();
    } catch (ExecutionException e) {
      assertThat(e).hasCauseThat().isSameInstanceAs(expectedException);
    }
  }

    ValueAndCloser<?> valueAndCloser = finishToValueAndCloser(closingFuture);
    try {
      valueAndCloser.get();
      fail();
    } catch (ExecutionException expected) {
      assertThat(expected).hasCauseThat().isSameInstanceAs(exception);
    }
    valueAndCloser.closeAsync();
  }

  @Override
  void assertBecomesCanceled(ClosingFuture<?> closingFuture) throws ExecutionException {

        ImmutableValueGraph.copyOf(ValueGraphBuilder.directed().<String, Integer>build());
    ValueGraph<String, Integer> graph2 = ImmutableValueGraph.copyOf(graph1);

    assertThat(graph2).isSameInstanceAs(graph1);
  }

  @Test
  public void incidentEdgeOrder_stable() {
    ImmutableValueGraph<String, Integer> immutableValueGraph =

      getDone(future);
      fail();
    } catch (ExecutionException e) {
      assertThat(e.getCause()).isSameInstanceAs(expectedException);
    }

    try {
      getDoneFromTimeoutOverload(future);
      fail();
    } catch (ExecutionException e) {
      assertThat(e).hasCauseThat().isSameInstanceAs(expectedException);
    }
  }

  public void copyOfImmutableGraph_optimized() {
    Graph<String> graph1 = ImmutableGraph.copyOf(GraphBuilder.directed().<String>build());
    Graph<String> graph2 = ImmutableGraph.copyOf(graph1);

    assertThat(graph2).isSameInstanceAs(graph1);
  }

  @Test
  public void immutableGraphBuilder_appliesGraphBuilderConfig() {
    ImmutableGraph<String> emptyGraph =
        GraphBuilder.directed()
            .allowsSelfLoops(true)

            .build(exceptionLoader(e));

    UncheckedExecutionException uee =
        assertThrows(UncheckedExecutionException.class, () -> map.getUnchecked(new Object()));
    assertThat(uee).hasCauseThat().isSameInstanceAs(e);
    assertTrue(listener.isEmpty());
    checkEmpty(map);
  }

            .build(exceptionLoader(e));

    UncheckedExecutionException uee =
        assertThrows(UncheckedExecutionException.class, () -> map.getUnchecked(new Object()));
    assertThat(uee).hasCauseThat().isSameInstanceAs(e);
    assertTrue(listener.isEmpty());
    checkEmpty(map);
  }