class WebSocketExtensionsTest {
  @Test
  fun emptyHeader() {
    assertThat(parse("")).isEqualTo(WebSocketExtensions())
  }

  @Test
  fun noExtensionHeader() {
    assertThat(WebSocketExtensions.parse(headersOf()))
      .isEqualTo(WebSocketExtensions())
  }

  @Test
  fun emptyExtension() {
    assertThat(parse(", permessage-deflate"))

        "$@"

# Stop when "xargs" is not available.
if ! command -v xargs >/dev/null 2>&1
then
    die "xargs is not available"
fi

# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
#   set -- "${ARGS[@]}" "$@"

        parameters = "";
        parameterMap = ParameterUtil.parse(parameters);
        assertEquals(0, parameterMap.size());

        parameters = "domain";
        parameterMap = ParameterUtil.parse(parameters);
        assertEquals(1, parameterMap.size());
        assertEquals("", parameterMap.get("domain"));

        parameters = "domain=";
        parameterMap = ParameterUtil.parse(parameters);
        assertEquals(1, parameterMap.size());

 * <i>missing</i> information and the other is not. The {@link #convert} method handles this null
 * behavior for all converters; implementations of {@link #doForward} and {@link #doBackward} are
 * guaranteed to never be passed {@code null}, and must never return {@code null}.
 *
 * <h3>Common ways to use</h3>
 *
 * <p>Getting a converter:
 *
 * <ul>

            MediaType.parse("text/plain; charset=UTF-8"),
            MediaType.parse("text/plain ; charset=utf-8"),
            MediaType.parse("text/plain; charset =UTF-8"),
            MediaType.parse("text/plain; charset= UTF-8"),
            MediaType.parse("text/plain; charset  =  UTF-8"),
            MediaType.parse("text/plain; charset=\tUTF-8"))

        .addEqualityGroup(parse(""), parse(""))
        .addEqualityGroup(parse("concurrencyLevel=7"), parse("concurrencyLevel=7"))
        .addEqualityGroup(parse("concurrencyLevel=15"), parse("concurrencyLevel=15"))
        .addEqualityGroup(parse("initialCapacity=7"), parse("initialCapacity=7"))
        .addEqualityGroup(parse("initialCapacity=15"), parse("initialCapacity=15"))
        .addEqualityGroup(parse("maximumSize=7"), parse("maximumSize=7"))

        .addEqualityGroup(parse(""), parse(""))
        .addEqualityGroup(parse("concurrencyLevel=7"), parse("concurrencyLevel=7"))
        .addEqualityGroup(parse("concurrencyLevel=15"), parse("concurrencyLevel=15"))
        .addEqualityGroup(parse("initialCapacity=7"), parse("initialCapacity=7"))
        .addEqualityGroup(parse("initialCapacity=15"), parse("initialCapacity=15"))
        .addEqualityGroup(parse("maximumSize=7"), parse("maximumSize=7"))

        try {
            // parse(String)
            Method parseMethod = KuromojiCSVUtil.class.getMethod("parse", String.class);
            assertTrue("parse should be static", java.lang.reflect.Modifier.isStatic(parseMethod.getModifiers()));
            assertTrue("parse should be public", java.lang.reflect.Modifier.isPublic(parseMethod.getModifiers()));

  @Test fun invalidCharacters() {
    assertThat(parse(url, "a\u0000b=cd")).isNull()
    assertThat(parse(url, "ab=c\u0000d")).isNull()
    assertThat(parse(url, "a\u0001b=cd")).isNull()
    assertThat(parse(url, "ab=c\u0001d")).isNull()
    assertThat(parse(url, "a\u0009b=cd")).isNull()
    assertThat(parse(url, "ab=c\u0009d")).isNull()
    assertThat(parse(url, "a\u001fb=cd")).isNull()
    assertThat(parse(url, "ab=c\u001fd")).isNull()

        PrunedTag[] tags = PrunedTag.parse("");
        assertEquals(0, tags.length);

        // Test null
        tags = PrunedTag.parse(null);
        assertEquals(0, tags.length);

        // Test whitespace only
        tags = PrunedTag.parse("   ");
        assertEquals(0, tags.length);

        // Test commas only
        tags = PrunedTag.parse(",,,");
        assertEquals(0, tags.length);