@Test
  public void testInitialSettings_basic() {
    HeapDisk disk = new HeapDisk(8192, 100, 100);

    assertThat(disk.blockSize()).isEqualTo(8192);
    assertThat(disk.getTotalSpace()).isEqualTo(819200);
    assertThat(disk.getUnallocatedSpace()).isEqualTo(819200);
    assertThat(disk.blockCache.blockCount()).isEqualTo(0);
  }
Tests for {@link HeapDisk}.

@author Colin Decker
jimfs/src/test/java/com/google/common/jimfs/HeapDiskTest.java