ContentOutputStream cos = new ContentOutputStream(5, Curl.tmpDir);
        cos.write(new byte[] { 0, 1, 2, 3, 4, 5 });
        assertFalse(cos.isInMemory());
        assertFalse(cos.done);
        File file = cos.getFile();
        assertTrue(file.exists());
        cos.close();
    }

    @Test
    public void testMultipleWrites() throws IOException {

    }

    @Test
    public void test_normalize() throws Exception {
        Normalizer normalizer = SuggestUtil.createDefaultNormalizer(runner.client(), suggester.settings());
        assertEquals("12345,.*[]「」abcケンサクabcdけんさくガギグゲゴ", normalizer.normalize("１２３４５,.*[]「」ＡBCｹﾝｻｸabcdけんさくｶﾞｷﾞｸﾞｹﾞｺﾞ", null));
    }

            assertEquals("transliteratorId must not be null", e.getMessage());
        }
    }

    public void test_invalidTransliteratorId() {
        try {
            new ICUNormalizer("Invalid-Transliterator-ID-12345");
            fail("Expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            assertTrue(e.getMessage().contains("Invalid transliterator ID"));
        }
    }

    @Test
    public void testReplace() throws Exception {
        assertEquals("1", "1bc45", StringUtil.replace("12345", "23", "bc"));
        assertEquals("2", "1234ef", StringUtil.replace("12345", "5", "ef"));
        assertEquals("3", "ab2345", StringUtil.replace("12345", "1", "ab"));
        assertEquals("4", "a234a", StringUtil.replace("12341", "1", "a"));
        assertEquals("5", "ab234abab234ab", StringUtil.replace("1234112341", "1", "ab"));

        RequestData data = RequestDataBuilder.newRequestData().get().url("https://example.com/article/12345").weight(1.0f).build();

        assertNotNull(data);
        assertEquals(Method.GET, data.getMethod());
        assertEquals("https://example.com/article/12345", data.getUrl());
    }

    public void test_realWorldUsageExample2() {
        // Real-world example: posting data

        byte[] buffer = new byte[10];
        int bytesRead = stream.read(buffer, 2, 5);

        assertEquals(5, bytesRead);
        assertEquals("01234", new String(buffer, 2, 5));
    }

    public void test_available_delegatesToUnderlying() throws IOException {
        // Test that available() delegates to underlying stream
        byte[] data = "Test data".getBytes();