assertSize(3);
  }

  public void testPutNullReplace() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');

    if (supportsNullValues()) {
      assertEquals((Character) 'b', table.put("bar", 1, nullableCellValue(null)));
      assertNull(table.get("bar", 1));
    } else {
      try {
        table.put("bar", 1, nullableCellValue(null));
        fail();
      } catch (NullPointerException expected) {

@ElementTypesAreNonnullByDefault
public class TreeTraverserTest extends TestCase {
  private static class Node {
    final char value;

    Node(char value) {
      this.value = value;
    }
  }

  private static final class Tree extends Node {
    final List<Tree> children;

    public Tree(char value, Tree... children) {
      super(value);
      this.children = Arrays.asList(children);
    }
  }

    assertEquals(Integer.valueOf(1), map.get("foo"));
    assertNull(map.putIfAbsent("bar", 3));
    assertEquals(Integer.valueOf(3), map.get("bar"));
  }

  public void testRemove() {
    TestMap map = new TestMap();
    map.put("foo", 1);
    assertFalse(map.remove("foo", 2));
    assertFalse(map.remove("bar", 1));
    assertEquals(Integer.valueOf(1), map.get("foo"));
    assertTrue(map.remove("foo", 1));

package com.google.common.io;

import static com.google.common.base.Charsets.UTF_8;

import java.io.FilterWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;

/**
 * A char sink for testing that has configurable behavior.
 *
 * @author Colin Decker
 */
public class TestCharSink extends CharSink implements TestStreamSupplier {

  private final TestByteSink byteSink;

    multimap.putAll("bar", Arrays.asList(1, 2, 3, 1));
    assertThat(multimap.removeAll("foo")).containsExactly(3, -1, 2, 4, 1).inOrder();
    assertFalse(multimap.containsKey("foo"));
    assertThat(multimap.replaceValues("bar", Arrays.asList(6, 5)))
        .containsExactly(1, 2, 3, 1)
        .inOrder();
    assertThat(multimap.get("bar")).containsExactly(6, 5).inOrder();
  }

  }

  public void testCharsIgnored() {
    for (char c : IGNORED.toCharArray()) {
      String str = String.valueOf(c);
      assertEquals(str, c, Ascii.toLowerCase(c));
      assertEquals(str, c, Ascii.toUpperCase(c));
      assertFalse(str, Ascii.isLowerCase(c));
      assertFalse(str, Ascii.isUpperCase(c));
    }
  }

  public void testCharsLower() {
    for (char c : LOWER.toCharArray()) {
      String str = String.valueOf(c);

    assertEquals("test >> 1", htmlEscaper().escape("test >> 1"));
    assertEquals("&lt;tab&gt;", htmlEscaper().escape("<tab>"));

    // Test simple escape of '&'.
    assertEquals("foo&amp;bar", htmlEscaper().escape("foo&bar"));

    // If the string contains no escapes, it should return the arg.
    // Note: assert<b>Same</b> for this implementation.
    String s = "blah blah farhvergnugen";

    @ExampleAnnotation
    FOO,
    BAR
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testGetField() {
    Field foo = Enums.getField(AnEnum.FOO);
    assertEquals("FOO", foo.getName());
    assertTrue(foo.isAnnotationPresent(ExampleAnnotation.class));

    Field bar = Enums.getField(AnEnum.BAR);
    assertEquals("BAR", bar.getName());

  public void testFindClassesToTest_ignoreUnderscores() {
    assertThat(findClassesToTest(ImmutableList.of(Foo.class, Foo_Bar.class)))
        .containsExactly(Foo.class, Foo_Bar.class);
    sanityTests.ignoreClasses(AbstractPackageSanityTests.UNDERSCORE_IN_NAME);
    assertThat(findClassesToTest(ImmutableList.of(Foo.class, Foo_Bar.class)))
        .containsExactly(Foo.class);
  }

  public void testFindClassesToTest_ignoreUnderscores() {
    assertThat(findClassesToTest(ImmutableList.of(Foo.class, Foo_Bar.class)))
        .containsExactly(Foo.class, Foo_Bar.class);
    sanityTests.ignoreClasses(AbstractPackageSanityTests.UNDERSCORE_IN_NAME);
    assertThat(findClassesToTest(ImmutableList.of(Foo.class, Foo_Bar.class)))
        .containsExactly(Foo.class);
  }