@Test
  public void testInitialState() {
    assertThat(file.blockCount()).isEqualTo(0);

    // no bounds checking, but there should never be a block at an index >= size
    assertThat(file.getBlock(0)).isNull();
  }
Tests for the lower-level operations dealing with the blocks of a {@link RegularFile}.

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