assertEquals(java.util.Optional.of("abc"), Optional.toJavaUtil(Optional.of("abc")));
  }

  public void testToJavaUtil_instance() {
    assertEquals(java.util.Optional.empty(), Optional.absent().toJavaUtil());
    assertEquals(java.util.Optional.of("abc"), Optional.of("abc").toJavaUtil());
  }

  public void testFromJavaUtil() {
    assertNull(Optional.fromJavaUtil(null));

package json

import (
	"bytes"
	"testing"
)

func FuzzEqualFold(f *testing.F) {
	for _, ss := range [][2]string{
		{"", ""},
		{"123abc", "123ABC"},
		{"αβδ", "ΑΒΔ"},
		{"abc", "xyz"},
		{"abc", "XYZ"},
		{"1", "2"},
		{"hello, world!", "hello, world!"},
		{"hello, world!", "Hello, World!"},
		{"hello, world!", "HELLO, WORLD!"},
		{"hello, world!", "jello, world!"},
		{"γειά, κόσμε!", "γειά, κόσμε!"},

				}
			})
		}
	}
}

func TestIsValidSysctlPattern(t *testing.T) {
	valid := []string{
		"a.b.c.d",
		"a",
		"a_b",
		"a-b",
		"abc",
		"abc.def",
		"*",
		"a.*",
		"*",
		"abc*",
		"a.abc*",
		"a.b.*",
		"a/b/c/d",
		"a/*",
		"a/b/*",
		"a.b/c*",
		"a.b/c.d",
		"a/b.c/d",
	}
	invalid := []string{
		"",
		"ä",
		"a_",
		"_",

		t.Errorf("MSS: %v != %v", v, v2)
	}
}

func BenchmarkMarshalMsgMSS(b *testing.B) {
	v := MSS{"abc": "def", "ghi": "jkl"}
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.MarshalMsg(nil)
	}
}

func BenchmarkAppendMsgMSS(b *testing.B) {
	v := MSS{"abc": "def", "ghi": "jkl"}
	bts := make([]byte, 0, v.Msgsize())
	bts, _ = v.MarshalMsg(bts[0:0])
	b.SetBytes(int64(len(bts)))

		if s != test.s {
			t.Error("testN=64", test.f, string(test.fmt), test.prec, "want", test.s, "got", s)
		}
		x := AppendFloat([]byte("abc"), test.f, test.fmt, test.prec, 64)
		if string(x) != "abc"+test.s {
			t.Error("AppendFloat testN=64", test.f, string(test.fmt), test.prec, "want", "abc"+test.s, "got", string(x))
		}
		if float64(float32(test.f)) == test.f && test.fmt != 'b' {
			s := FormatFloat(test.f, test.fmt, test.prec, 32)

//
//  scope: Scope for grad operations.
//  output_grad: The gradient wrt the output of a unary einsum operation.
//  output_subs: The output subscript. (E.g. `ac` for equation `abc->ac`).
//  input_subs: The input subscript. (E.g. `abc` for equation `abc->ac`).
//  input_shape: The shape of the input operand.
//  reduced_label_set: The set of axis labels appearing in `input_subs` but
//    not in `output_subs`.

  }

  @Test
  fun testMockWebServer(server: MockWebServer) {
    server.enqueue(MockResponse(body = "abc"))

    val client = clientRule.newClient()

    client.newCall(Request(url = server.url("/"))).execute().use {
      assertThat(it.body.string()).isEqualTo("abc")
    }
  }

  @Test
  fun testExternalSite() {
    val client = clientRule.newClient()

	}
}

func TestDotWriter(t *testing.T) {
	var buf strings.Builder
	w := NewWriter(bufio.NewWriter(&buf))
	d := w.DotWriter()
	n, err := d.Write([]byte("abc\n.def\n..ghi\n.jkl\n."))
	if n != 21 || err != nil {
		t.Fatalf("Write: %d, %s", n, err)
	}
	d.Close()
	want := "abc\r\n..def\r\n...ghi\r\n..jkl\r\n..\r\n.\r\n"
	if s := buf.String(); s != want {
		t.Fatalf("wrote %q", s)
	}
}

			Spec: api.PodSpec{
				RestartPolicy: api.RestartPolicyAlways,
				DNSPolicy:     api.DNSClusterFirst,
				Containers:    []api.Container{{Name: "abc", Image: "image", ImagePullPolicy: "IfNotPresent"}},
			},
		},
	}
	ps := &apps.StatefulSet{
		ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
		Spec: apps.StatefulSetSpec{
			PodManagementPolicy: apps.OrderedReadyPodManagement,

    /**
     * @throws Exception
     */
    @Test
    public void pend_testDot() throws Exception {
        final Tokenizer tokenizer = new Tokenizer("abc.hoge");
        assertThat(tokenizer.nextToken(), is(Tokenizer.TT_WORD));
        assertThat(tokenizer.getStringValue(), is("abc.hoge"));
        assertThat(tokenizer.nextToken(), is(Tokenizer.TT_EOF));
    }