public void testDefaults() {
    MapMakerInternalMap<Object, Object, ?, ?> map = makeMap(createMapMaker());

    assertSame(Strength.STRONG, map.keyStrength());
    assertSame(Strength.STRONG, map.valueStrength());
    assertSame(map.keyStrength().defaultEquivalence(), map.keyEquivalence);
    assertSame(map.valueStrength().defaultEquivalence(), map.valueEquivalence());

    assertThat(map.entryHelper)

  public void testDefaults() {
    MapMakerInternalMap<Object, Object, ?, ?> map = makeMap(createMapMaker());

    assertSame(Strength.STRONG, map.keyStrength());
    assertSame(Strength.STRONG, map.valueStrength());
    assertSame(map.keyStrength().defaultEquivalence(), map.keyEquivalence);
    assertSame(map.valueStrength().defaultEquivalence(), map.valueEquivalence());

    assertThat(map.entryHelper)

    sortedTable.put("", 42, 'x');
    assertSame(Ordering.natural(), sortedTable.columnComparator());
    assertSame(
        Ordering.natural(),
        ((SortedMap<Integer, Character>) sortedTable.rowMap().values().iterator().next())
            .comparator());

    sortedTable = TreeBasedTable.create(Collections.reverseOrder(), Ordering.usingToString());
    sortedTable.put("", 42, 'x');

    assertSame(copy, ImmutableSortedMap.copyOf(copy));
    assertSame(Ordering.natural(), copy.comparator());
  }

  public void testCopyOfSingletonMap() {
    ImmutableSortedMap<String, Integer> copy =
        ImmutableSortedMap.copyOf(Collections.singletonMap("one", 1));
    assertMapEquals(copy, "one", 1);
    assertSame(copy, ImmutableSortedMap.copyOf(copy));

    sortedTable.put("", 42, 'x');
    assertSame(Ordering.natural(), sortedTable.columnComparator());
    assertSame(
        Ordering.natural(),
        ((SortedMap<Integer, Character>) sortedTable.rowMap().values().iterator().next())
            .comparator());

    sortedTable = TreeBasedTable.create(Collections.reverseOrder(), Ordering.usingToString());
    sortedTable.put("", 42, 'x');

    assertEquals(Collections.<String, Integer>emptyMap(), copy);
    assertSame(copy, ImmutableBiMap.copyOf(copy));
    assertSame(ImmutableBiMap.of(), copy);
  }

  public void testCopyOfSingletonMap() {
    ImmutableBiMap<String, Integer> copy =
        ImmutableBiMap.copyOf(Collections.singletonMap("one", 1));
    assertMapEquals(copy, "one", 1);
    assertSame(copy, ImmutableBiMap.copyOf(copy));
  }

    assertSame(c, copyOf(c));
  }

  public void testCopyOf_shortcut_singleton() {
    Collection<String> c = of("a");
    assertEquals(Collections.singleton("a"), copyOf(c));
    assertSame(c, copyOf(c));
  }

  public void testCopyOf_shortcut_sameType() {
    Collection<String> c = of("a", "b", "c");
    assertSame(c, copyOf(c));
  }

    assertSame(c, copyOf(c));
  }

  public void testCopyOf_shortcut_singleton() {
    Collection<String> c = of("a");
    assertEquals(Collections.singleton("a"), copyOf(c));
    assertSame(c, copyOf(c));
  }

  public void testCopyOf_shortcut_sameType() {
    Collection<String> c = of("a", "b", "c");
    assertSame(c, copyOf(c));
  }

    assertFalse(Strings.isNullOrEmpty("a"));
  }

  public void testPadStart_noPadding() {
    assertSame("", Strings.padStart("", 0, '-'));
    assertSame("x", Strings.padStart("x", 0, '-'));
    assertSame("x", Strings.padStart("x", 1, '-'));
    assertSame("xx", Strings.padStart("xx", 0, '-'));
    assertSame("xx", Strings.padStart("xx", 2, '-'));
  }

  public void testPadStart_somePadding() {

    // more excruciating tests! Hooray!

    assertSame(CharMatcher.any(), CharMatcher.none().negate());
    assertSame(CharMatcher.none(), CharMatcher.any().negate());

    assertSame(WHATEVER, CharMatcher.any().and(WHATEVER));
    assertSame(CharMatcher.any(), CharMatcher.any().or(WHATEVER));

    assertSame(CharMatcher.none(), CharMatcher.none().and(WHATEVER));
    assertSame(WHATEVER, CharMatcher.none().or(WHATEVER));
  }