}
	}
}

func TestContains(t *testing.T) {
	containsTests := []struct {
		name  string
		elems []string
		elem  string
		out   bool
	}{
		{"exists", []string{"1", "2", "3"}, "1", true},
		{"not exists", []string{"1", "2", "3"}, "4", false},
	}
	for _, test := range containsTests {
		t.Run(test.name, func(t *testing.T) {
			if out := Contains(test.elems, test.elem); test.out != out {

"12.2.7 UNIMPLEMENTED"
"12.2.8 UNIMPLEMENTED"
"12.2.9 UNIMPLEMENTED"
"12.3.1 UNIMPLEMENTED"
"12.3.10 UNIMPLEMENTED"
"12.3.11 UNIMPLEMENTED"
"12.3.12 UNIMPLEMENTED"
"12.3.13 UNIMPLEMENTED"
"12.3.14 UNIMPLEMENTED"
"12.3.15 UNIMPLEMENTED"
"12.3.16 UNIMPLEMENTED"
"12.3.17 UNIMPLEMENTED"
"12.3.18 UNIMPLEMENTED"
"12.3.2 UNIMPLEMENTED"
"12.3.3 UNIMPLEMENTED"
"12.3.4 UNIMPLEMENTED"
"12.3.5 UNIMPLEMENTED"
"12.3.6 UNIMPLEMENTED"

For example, if the directory `6-stdlib/99-minor` is present,
then an `api/next` file with the line

    pkg net/http, function F #12345

should have a corresponding file named `doc/next/6-stdlib/99-minor/net/http/12345.md`.
At a minimum, that file should contain either a full sentence or a TODO,
ideally referring to a person with the responsibility to complete the note.

    ListMultimap<String, Integer> multimap = create();
    multimap.putAll("foo", asList(1, 2, 3, 4, 5));
    List<Integer> list = multimap.get("foo");
    assertThat(multimap.get("foo")).containsExactly(1, 2, 3, 4, 5).inOrder();
    List<Integer> sublist = list.subList(0, 5);
    assertThat(sublist).containsExactly(1, 2, 3, 4, 5).inOrder();

    sublist.clear();
    assertTrue(sublist.isEmpty());
    multimap.put("foo", 6);

		"",
	},
	{
		"simple",
		"1 (a)",
		"1.(.a.)",
	},
	{
		"simple define",
		lines(
			"#define A 1234",
			"A",
		),
		"1234.\n",
	},
	{
		"define without value",
		"#define A",
		"",
	},
	{
		"macro without arguments",
		"#define A() 1234\n" + "A()\n",
		"1234.\n",
	},
	{
		"macro with just parens as body",
		"#define A () \n" + "A\n",
		"(.).\n",
	},
	{

        assertThrows(
            IllegalArgumentException.class,
            () -> Stream.of(1, 2, 3, 4, 5, 6).collect(toOptional()));
    assertThat(expected).hasMessageThat().contains("1, 2, 3, 4, 5, ...");
  }

  public void testOnlyElement() {
    assertThrows(NoSuchElementException.class, () -> Stream.empty().collect(onlyElement()));
  }

  public void testOnlyElementSingleton() {

		target any
		want   bool
	}{
		{
			name:   "url.Error",
			err:    &url.Error{Op: "PUT", URL: "http://localhost/1234", Err: restError("remote server offline")},
			target: &url.Error{},
			want:   true,
		},
		{
			name: "net.Error",
			err:  &url.Error{Op: "PUT", URL: "http://localhost/1234", Err: restError("remote server offline")},
			want: true,
		},
		{
			name: "net.Error-unmatched",

## Crafting a Quality PR

A strong MinIO PR:
- Delivers a complete, valuable change (feature, bug fix, or improvement).
- Has a concise title (e.g., `[S3] Fix bucket policy parsing #1234`) and a summary with context, referencing issues (e.g., `#1234`).
- Contains well-written, logical commits explaining *why* changes were made (e.g., “Add S3 bucket tagging support so that users can organize resources efficiently”).

  really needed (ASCII art, table, or long link)
+ If there is a corresponding issue, add either `Fixes #1234` or `Updates #1234`
  (the latter if this is not a complete fix) to this comment
+ If referring to a repo other than `golang/go` you can use the
  `owner/repo#issue_number` syntax: `Fixes golang/tools#1234`
+ We do not use Signed-off-by lines in Go. Please don't add them.

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(0, 0, 0, 0),
      ),
    ).isEqualTo("0.0.0.0")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(1, 2, 3, 4),
      ),
    ).isEqualTo("1.2.3.4")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(127, 0, 0, 1),
      ),
    ).isEqualTo("127.0.0.1")

    assertThat(
      inet4AddressToAscii(