assertEscaping(e, "%27", '\'');

    // Plus for spaces
    assertEscaping(e, "+", ' ');
    assertEscaping(e, "%2B", '+');

    assertThat(e.escape("safe with spaces")).isEqualTo("safe+with+spaces");
    assertThat(e.escape("******@****.***")).isEqualTo("foo%40bar.com");
  }

  public void testUrlPathSegmentEscaper() {
    UnicodeEscaper e = (UnicodeEscaper) urlPathSegmentEscaper();
    assertPathEscaper(e);

      String expected = Ascii.toLowerCase(fieldName).replaceAll("_", ".");
      assertThat(property.key()).isEqualTo(expected);
    }
  }

  public void testGetValue() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {
      assertThat(property.value()).isEqualTo(System.getProperty(property.key()));
    }
  }

  public void testToString() {

    generator.addSampleInstances(String.class, ImmutableList.of("a", "b"));
    assertThat(generator.generateFresh(String.class)).isEqualTo("a");
    assertThat(generator.generateFresh(String.class)).isEqualTo("b");
    assertThat(generator.generateFresh(String.class)).isEqualTo("a");
  }

  public void testAddSampleInstances_oneInstance() {
    FreshValueGenerator generator = new FreshValueGenerator();

    assumeNetwork()

    val request = Request.Builder().url("https://mozilla.org/robots.txt").build()

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }
  }

    url = server.url("/")
  }

  @Test
  fun levelGetter() {
    // The default is NONE.
    assertThat(applicationInterceptor.level).isEqualTo(Level.NONE)
    for (level in Level.entries) {
      applicationInterceptor.setLevel(level)
      assertThat(applicationInterceptor.level).isEqualTo(level)
    }
  }

  @Test
  fun setLevelShouldReturnSameInstanceOfInterceptor() {
    for (level in Level.entries) {

        assertThrows(
            ConflictingRequirementsException.class, () -> buildTesterRequirements(Tester.class));
    assertThat(e.getConflicts()).containsExactly(FOO);
    assertThat(e.getSource()).isEqualTo(Tester.class.getAnnotation(Require.class));
  }

  public void testBuildTesterRequirements_classClassConflict_inherited() {
    @Require(FOO)
    abstract class BaseTester {}
    @Require(absent = FOO)

    if (socketMode is TlsInstance) {
      assertThat(response.handshake!!.tlsVersion).isEqualTo(socketMode.tlsVersion)

      assertThat(acceptedHostName).isEqualTo(hostname)

      if (socketMode.tlsExtensionMode == STANDARD) {
        assertThat(response.protocol).isEqualTo(socketMode.protocol)
      } else {
        assertThat(response.protocol).isEqualTo(HTTP_1_1)
      }
    }
  }
}

sealed class SocketMode

    assertTrue(range.hasUpperBound());
    assertEquals(8, (int) range.upperEndpoint());
    assertEquals(OPEN, range.upperBoundType());
    assertFalse(range.isEmpty());
    assertThat(range.toString()).isEqualTo("(4..8)");
    reserializeAndAssert(range);
  }

  public void testOpen_invalid() {
    assertThrows(IllegalArgumentException.class, () -> Range.open(4, 3));

  }

  public void testToString() {
    assertThat(COMMA_SPLITTER.split("").toString()).isEqualTo("[]");
    assertThat(COMMA_SPLITTER.split("a,b,c").toString()).isEqualTo("[a, b, c]");
    assertThat(Splitter.on(", ").split("yam, bam, jam, ham").toString())
        .isEqualTo("[yam, bam, jam, ham]");
  }

  public void testCharacterSimpleSplitWithNoDelimiter() {
    String simple = "a,b,c";

  }

  public void testGet() {
    for (ImmutableTable<Character, Integer, String> testInstance : getTestInstances()) {
      assertThat(testInstance.get('a', 1)).isEqualTo("foo");
      assertThat(testInstance.get('b', 1)).isEqualTo("bar");
      assertThat(testInstance.get('a', 2)).isEqualTo("baz");
      assertThat(testInstance.get('b', 2)).isNull();
      assertThat(testInstance.get('c', 3)).isNull();
    }
  }