assertFalse(targetFile.exists(), "Target file should not exist initially");

        // Copy file
        sourceFile.copyTo(targetFile);

        assertTrue(sourceFile.exists(), "Source file should still exist after copy");
        assertTrue(targetFile.exists(), "Target file should exist after copy");

        // Verify content in both files
        try (InputStream in = sourceFile.getInputStream()) {

    EnumMap<SomeEnum, Integer> copy = Maps.newEnumMap(original);
    assertEquals(original, copy);
  }

  public void testEnumMapWithInitialEmptyEnumMap() {
    EnumMap<SomeEnum, Integer> original = Maps.newEnumMap(SomeEnum.class);
    EnumMap<SomeEnum, Integer> copy = Maps.newEnumMap(original);
    assertEquals(original, copy);
    assertThat(copy).isNotSameInstanceAs(original);
  }

      for (Set<? extends E> set : sets) {
        ImmutableSet<E> copy = ImmutableSet.copyOf(set);
        if (copy.isEmpty()) {
          return ImmutableSet.of();
        }
        axesBuilder.add(copy);
      }
      ImmutableList<ImmutableSet<E>> axes = axesBuilder.build();
      ImmutableList<List<E>> listAxes =

      for (Set<? extends E> set : sets) {
        ImmutableSet<E> copy = ImmutableSet.copyOf(set);
        if (copy.isEmpty()) {
          return ImmutableSet.of();
        }
        axesBuilder.add(copy);
      }
      ImmutableList<ImmutableSet<E>> axes = axesBuilder.build();
      ImmutableList<List<E>> listAxes =

		if _, err := w.ReadFrom(rw); err != rw.expected {
			t.Errorf("w.ReadFrom(errorReaderFromTests[%d]) = _, %v, want _,%v", i, err, rw.expected)
		}
	}
}

// TestWriterReadFromCounts tests that using io.Copy to copy into a
// bufio.Writer does not prematurely flush the buffer. For example, when
// buffering writes to a network socket, excessive network writes should be
// avoided.
func TestWriterReadFromCounts(t *testing.T) {

					}
					fanOutEntries = append(fanOutEntries, m)
				}
				part.Close()
				continue
			}

			buf := bytebufferpool.Get()
			// value, store as string in memory
			n, err := io.CopyN(buf, part, maxMemoryBytes+1)
			value := buf.String()
			buf.Reset()
			bytebufferpool.Put(buf)
			part.Close()

			if err != nil && err != io.EOF {

    E newEntry(S segment, K key, int hash, @Nullable E next);

    /**
     * Returns a freshly created entry, typed at the {@code E} type, for the given {@code segment},
     * that is a copy of the given {@code entry}.
     */
    E copy(S segment, E entry, @Nullable E newNext);

    /**
     * Sets the value of the given {@code entry} in the given {@code segment} to be the given {@code
     * value}
     */

   * key/value mapping in the underlying multimap and determine which satisfy the filter. When a
   * live view is <i>not</i> needed, it may be faster to copy the filtered multimap and use the
   * copy.
   *
   * <p><b>Warning:</b> {@code keyPredicate} must be <i>consistent with equals</i>, as documented at
   * {@link Predicate#apply}. Do not provide a predicate such as {@code

   * key/value mapping in the underlying multimap and determine which satisfy the filter. When a
   * live view is <i>not</i> needed, it may be faster to copy the filtered multimap and use the
   * copy.
   *
   * <p><b>Warning:</b> {@code keyPredicate} must be <i>consistent with equals</i>, as documented at
   * {@link Predicate#apply}. Do not provide a predicate such as {@code

#             "*.bara.sky",
#             "*.dic",
#             "*.ftrcp",
#         ],
#         exclude = [
#             "copy.bara.sky",
#         ],
#     ),
#     visibility = ["//visibility:public"],
# )
#
# filegroup(
#     name = "copybara_config",
#     srcs = ["copy.bara.sky"],
#     data = [
#         ":copybara_library",
#         "//learning/brain/testing/copybara:all_bara_sky",