// Test case 3: Double padding
        final byte[] data3 = "abcde".getBytes();
        assertEquals("YWJjZGU=", Base64Util.encode(data3));

        // Test case 4: No padding
        final byte[] data4 = "abcdef".getBytes();
        assertEquals("YWJjZGVm", Base64Util.encode(data4));
    }

	}{
		{
			name:    "small store w desc",
			content: []byte("gophers"),
			method:  Store,
			flags:   0x8,
		},
		{
			name:    "small deflate wo desc",
			content: bytes.Repeat([]byte("abcdefg"), 2048),
			method:  Deflate,
		},
	}

	// write a zip file
	archive := new(bytes.Buffer)
	w := NewWriter(archive)

	for i := range files {
		f := &files[i]

	{"αβδ", "ΑΒΔ", true},
	{"abc", "xyz", false},
	{"abc", "XYZ", false},
	{"abcdefghijk", "abcdefghijX", false},
	{"abcdefghijk", "abcdefghij\u212A", true},
	{"abcdefghijK", "abcdefghij\u212A", true},
	{"abcdefghijkz", "abcdefghij\u212Ay", false},
	{"abcdefghijKz", "abcdefghij\u212Ay", false},
}

func TestEqualFold(t *testing.T) {
	for _, tt := range EqualFoldTests {

	}
}

func TestReaderReset(t *testing.T) {
	r := NewReader([]byte("世界"))
	if _, _, err := r.ReadRune(); err != nil {
		t.Errorf("ReadRune: unexpected error: %v", err)
	}

	const want = "abcdef"
	r.Reset([]byte(want))
	if err := r.UnreadRune(); err == nil {
		t.Errorf("UnreadRune: expected error, got nil")
	}
	buf, err := io.ReadAll(r)
	if err != nil {
		t.Errorf("ReadAll: unexpected error: %v", err)

    // An 8n+{1,3,6} length string is never legal base32.
    assertFailsToDecode(base32(), "A", "Invalid input length 1");
    assertFailsToDecode(base32(), "ABC");
    assertFailsToDecode(base32(), "ABCDEF");
    // These have a combination of invalid length, unrecognized characters and wrong padding.
    assertFailsToDecode(base32(), "AB=C", "Unrecognized character: =");

    Reader reader = new StringReader("abcde");
    assertThrows(EOFException.class, () -> CharStreams.skipFully(reader, 6));
  }

  public void testSkipFully() throws IOException {
    String testString = "abcdef";
    Reader reader = new StringReader(testString);

    assertEquals(testString.charAt(0), reader.read());
    CharStreams.skipFully(reader, 1);
    assertEquals(testString.charAt(2), reader.read());

    Reader reader = new StringReader("abcde");
    assertThrows(EOFException.class, () -> CharStreams.skipFully(reader, 6));
  }

  public void testSkipFully() throws IOException {
    String testString = "abcdef";
    Reader reader = new StringReader(testString);

    assertEquals(testString.charAt(0), reader.read());
    CharStreams.skipFully(reader, 1);
    assertEquals(testString.charAt(2), reader.read());

			testReadFrom{fileOps{int64(2), "abc", int64(1), "\x00"}, 7, nil},
			testRemaining{0, 0},
		},
	}, {
		maker: makeSparse{makeReg{3, ""}, sparseHoles{{0, 2}, {5, 2}}, 7},
		tests: []testFnc{
			testWrite{"abcdefg", 0, errWriteHole},
		},
	}, {
		maker: makeSparse{makeReg{3, "abc"}, sparseHoles{{0, 2}, {5, 2}}, 7},
		tests: []testFnc{
			testWrite{"\x00\x00abcde", 5, errWriteHole},
		},
	}, {

	for rno, read := range readers {
		// Some input data that is longer than the minimum reader buffer size.
		const n = 10
		var buf bytes.Buffer
		for i := 0; i < n; i++ {
			buf.WriteString("abcdefg")
		}

		r := NewReaderSize(&buf, minReadBufferSize)
		readTo := func(delim byte, want string) {
			data, err := read(r, delim)
			if err != nil {

            // Read next chunk
            bytesRead = in.read(buffer);
            assertEquals(10, bytesRead, "Should read next chunk");
            assertEquals("ABCDEFGHIJ", new String(buffer, 0, bytesRead, "UTF-8"));
        }
    }

    @Test
    void testZeroByteFile() throws Exception {
        // Test handling of zero-byte files