Examples with UTF8Writer com.fasterxml.jackson.core.io.UTF8Writer used on opensource projects

Example 1 with UTF8Writer

use of com.fasterxml.jackson.core.io.UTF8Writer in project jackson-core by FasterXML.

the class UTF8WriterTest method testSimple.

public void testSimple() throws Exception {
    BufferRecycler rec = new BufferRecycler();
    IOContext ctxt = new IOContext(rec, null, false);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    UTF8Writer w = new UTF8Writer(ctxt, out);
    String str = "AB\u00A0\u1AE9\uFFFC";
    char[] ch = str.toCharArray();
    // Let's write 3 times, using different methods
    w.write(str);
    w.append(ch[0]);
    w.write(ch[1]);
    w.write(ch, 2, 3);
    w.flush();
    w.write(str, 0, str.length());
    w.close();
    // and thus should have 3 times contents
    byte[] data = out.toByteArray();
    assertEquals(3 * 10, data.length);
    String act = out.toString("UTF-8");
    assertEquals(15, act.length());
    assertEquals(3 * str.length(), act.length());
    assertEquals(str + str + str, act);
}

Example 2 with UTF8Writer

use of com.fasterxml.jackson.core.io.UTF8Writer in project jackson-core by FasterXML.

the class UTF8WriterTest method testSimpleAscii.

public void testSimpleAscii() throws Exception {
    BufferRecycler rec = new BufferRecycler();
    IOContext ctxt = new IOContext(rec, null, false);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    UTF8Writer w = new UTF8Writer(ctxt, out);
    String str = "abcdefghijklmnopqrst\u00A0";
    char[] ch = str.toCharArray();
    w.write(ch, 0, ch.length);
    // trigger different code path for close
    w.flush();
    w.close();
    byte[] data = out.toByteArray();
    // one 2-byte encoded char
    assertEquals(ch.length + 1, data.length);
    String act = out.toString("UTF-8");
    assertEquals(str, act);
}

Example 3 with UTF8Writer

use of com.fasterxml.jackson.core.io.UTF8Writer in project jackson-core by FasterXML.

the class UTF8WriterTest method testSurrogatesOk.

public void testSurrogatesOk() throws Exception {
    BufferRecycler rec = new BufferRecycler();
    IOContext ctxt = new IOContext(rec, null, false);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    UTF8Writer w = new UTF8Writer(ctxt, out);
    // First, valid case, char by char
    w.write(0xD83D);
    w.write(0xDE03);
    w.close();
    assertEquals(4, out.size());
    final byte[] EXP_SURROGATES = new byte[] { (byte) 0xF0, (byte) 0x9F, (byte) 0x98, (byte) 0x83 };
    Assert.assertArrayEquals(EXP_SURROGATES, out.toByteArray());
    // and then as String
    ctxt = new IOContext(rec, null, false);
    out = new ByteArrayOutputStream();
    w = new UTF8Writer(ctxt, out);
    w.write("\uD83D\uDE03");
    w.close();
    assertEquals(4, out.size());
    Assert.assertArrayEquals(EXP_SURROGATES, out.toByteArray());
}

Example 4 with UTF8Writer

use of com.fasterxml.jackson.core.io.UTF8Writer in project jackson-core by FasterXML.

the class UTF8WriterTest method testSurrogatesFail.

@SuppressWarnings("resource")
public void testSurrogatesFail() throws Exception {
    BufferRecycler rec = new BufferRecycler();
    IOContext ctxt;
    ByteArrayOutputStream out;
    UTF8Writer w;
    ctxt = new IOContext(rec, null, false);
    out = new ByteArrayOutputStream();
    w = new UTF8Writer(ctxt, out);
    try {
        w.write(0xDE03);
        fail("should not pass");
    } catch (IOException e) {
        verifyException(e, "Unmatched second part");
    }
    ctxt = new IOContext(rec, null, false);
    out = new ByteArrayOutputStream();
    w = new UTF8Writer(ctxt, out);
    w.write(0xD83D);
    try {
        w.write('a');
        fail("should not pass");
    } catch (IOException e) {
        verifyException(e, "Broken surrogate pair");
    }
    ctxt = new IOContext(rec, null, false);
    out = new ByteArrayOutputStream();
    w = new UTF8Writer(ctxt, out);
    try {
        w.write("\uDE03");
        fail("should not pass");
    } catch (IOException e) {
        verifyException(e, "Unmatched second part");
    }
    ctxt = new IOContext(rec, null, false);
    out = new ByteArrayOutputStream();
    w = new UTF8Writer(ctxt, out);
    try {
        w.write("\uD83Da");
        fail("should not pass");
    } catch (IOException e) {
        verifyException(e, "Broken surrogate pair");
    }
}

Example 5 with UTF8Writer

use of com.fasterxml.jackson.core.io.UTF8Writer in project jackson-core by FasterXML.

the class UTF8WriterTest method testFlushAfterClose.

public void testFlushAfterClose() throws Exception {
    BufferRecycler rec = new BufferRecycler();
    IOContext ctxt = new IOContext(rec, null, false);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    UTF8Writer w = new UTF8Writer(ctxt, out);
    w.write('X');
    char[] ch = { 'Y' };
    w.write(ch);
    w.close();
    assertEquals(2, out.size());
    // and this ought to be fine...
    w.flush();
    // as well as some more...
    w.close();
    w.flush();
}