public void testToString() throws Exception {
    char[] b = {'a', 'l', 'o', 'h', 'a'};
    CharTermAttributeImpl t = new CharTermAttributeImpl();
    t.copyBuffer(b, 0, 5);
    assertEquals("aloha", t.toString());

    t.setEmpty().append("hi there");
    assertEquals("hi there", t.toString());
  }
 public void testResize() {
   CharTermAttributeImpl t = new CharTermAttributeImpl();
   char[] content = "hello".toCharArray();
   t.copyBuffer(content, 0, content.length);
   for (int i = 0; i < 2000; i++) {
     t.resizeBuffer(i);
     assertTrue(i <= t.buffer().length);
     assertEquals("hello", t.toString());
   }
 }
 public void testAttributeReflection() throws Exception {
   CharTermAttributeImpl t = new CharTermAttributeImpl();
   t.append("foobar");
   TestUtil.assertAttributeReflection(
       t,
       new HashMap<String, Object>() {
         {
           put(CharTermAttribute.class.getName() + "#term", "foobar");
           put(TermToBytesRefAttribute.class.getName() + "#bytes", new BytesRef("foobar"));
         }
       });
 }
 public void testEquals() throws Exception {
   CharTermAttributeImpl t1a = new CharTermAttributeImpl();
   char[] content1a = "hello".toCharArray();
   t1a.copyBuffer(content1a, 0, 5);
   CharTermAttributeImpl t1b = new CharTermAttributeImpl();
   char[] content1b = "hello".toCharArray();
   t1b.copyBuffer(content1b, 0, 5);
   CharTermAttributeImpl t2 = new CharTermAttributeImpl();
   char[] content2 = "hello2".toCharArray();
   t2.copyBuffer(content2, 0, 6);
   assertTrue(t1a.equals(t1b));
   assertFalse(t1a.equals(t2));
   assertFalse(t2.equals(t1b));
 }
  public void testExceptions() {
    CharTermAttributeImpl t = new CharTermAttributeImpl();
    t.append("test");
    assertEquals("test", t.toString());

    try {
      t.charAt(-1);
      fail("Should throw IndexOutOfBoundsException");
    } catch (IndexOutOfBoundsException iobe) {
    }

    try {
      t.charAt(4);
      fail("Should throw IndexOutOfBoundsException");
    } catch (IndexOutOfBoundsException iobe) {
    }

    try {
      t.subSequence(0, 5);
      fail("Should throw IndexOutOfBoundsException");
    } catch (IndexOutOfBoundsException iobe) {
    }

    try {
      t.subSequence(5, 0);
      fail("Should throw IndexOutOfBoundsException");
    } catch (IndexOutOfBoundsException iobe) {
    }
  }
  public void testCopyTo() throws Exception {
    CharTermAttributeImpl t = new CharTermAttributeImpl();
    CharTermAttributeImpl copy = TestToken.assertCopyIsEqual(t);
    assertEquals("", t.toString());
    assertEquals("", copy.toString());

    t = new CharTermAttributeImpl();
    char[] content = "hello".toCharArray();
    t.copyBuffer(content, 0, 5);
    char[] buf = t.buffer();
    copy = TestToken.assertCopyIsEqual(t);
    assertEquals(t.toString(), copy.toString());
    assertNotSame(buf, copy.buffer());
  }
  public void testCharSequenceInterface() {
    final String s = "0123456789";
    final CharTermAttributeImpl t = new CharTermAttributeImpl();
    t.append(s);

    assertEquals(s.length(), t.length());
    assertEquals("12", t.subSequence(1, 3).toString());
    assertEquals(s, t.subSequence(0, s.length()).toString());

    assertTrue(Pattern.matches("01\\d+", t));
    assertTrue(Pattern.matches("34", t.subSequence(3, 5)));

    assertEquals(s.subSequence(3, 7).toString(), t.subSequence(3, 7).toString());

    for (int i = 0; i < s.length(); i++) {
      assertTrue(t.charAt(i) == s.charAt(i));
    }
  }
  public void testGrow() {
    CharTermAttributeImpl t = new CharTermAttributeImpl();
    StringBuilder buf = new StringBuilder("ab");
    for (int i = 0; i < 20; i++) {
      char[] content = buf.toString().toCharArray();
      t.copyBuffer(content, 0, content.length);
      assertEquals(buf.length(), t.length());
      assertEquals(buf.toString(), t.toString());
      buf.append(buf.toString());
    }
    assertEquals(1048576, t.length());

    // now as a StringBuilder, first variant
    t = new CharTermAttributeImpl();
    buf = new StringBuilder("ab");
    for (int i = 0; i < 20; i++) {
      t.setEmpty().append(buf);
      assertEquals(buf.length(), t.length());
      assertEquals(buf.toString(), t.toString());
      buf.append(t);
    }
    assertEquals(1048576, t.length());

    // Test for slow growth to a long term
    t = new CharTermAttributeImpl();
    buf = new StringBuilder("a");
    for (int i = 0; i < 20000; i++) {
      t.setEmpty().append(buf);
      assertEquals(buf.length(), t.length());
      assertEquals(buf.toString(), t.toString());
      buf.append("a");
    }
    assertEquals(20000, t.length());
  }
 public void testNonCharSequenceAppend() {
   CharTermAttributeImpl t = new CharTermAttributeImpl();
   t.append("0123456789");
   t.append("0123456789");
   assertEquals("01234567890123456789", t.toString());
   t.append(new StringBuilder("0123456789"));
   assertEquals("012345678901234567890123456789", t.toString());
   CharTermAttribute t2 = new CharTermAttributeImpl();
   t2.append("test");
   t.append(t2);
   assertEquals("012345678901234567890123456789test", t.toString());
   t.append((String) null);
   t.append((StringBuilder) null);
   t.append((CharTermAttribute) null);
   assertEquals("012345678901234567890123456789testnullnullnull", t.toString());
 }
  public void testAppendableInterfaceWithLongSequences() {
    CharTermAttributeImpl t = new CharTermAttributeImpl();
    t.append((CharSequence) "01234567890123456789012345678901234567890123456789");
    t.append(
        (CharSequence)
            CharBuffer.wrap("01234567890123456789012345678901234567890123456789".toCharArray()),
        3,
        50);
    assertEquals(
        "0123456789012345678901234567890123456789012345678934567890123456789012345678901234567890123456789",
        t.toString());
    t.setEmpty().append((CharSequence) new StringBuilder("01234567890123456789"), 5, 17);
    assertEquals((CharSequence) "567890123456", t.toString());
    t.append(new StringBuffer(t));
    assertEquals((CharSequence) "567890123456567890123456", t.toString());
    // very wierd, to test if a subSlice is wrapped correct :)
    CharBuffer buf = CharBuffer.wrap("012345678901234567890123456789".toCharArray(), 3, 15);
    assertEquals("345678901234567", buf.toString());
    t.setEmpty().append(buf, 1, 14);
    assertEquals("4567890123456", t.toString());

    // finally use a completely custom CharSequence that is not catched by instanceof checks
    final String longTestString = "012345678901234567890123456789";
    t.append(
        new CharSequence() {
          @Override
          public char charAt(int i) {
            return longTestString.charAt(i);
          }

          @Override
          public int length() {
            return longTestString.length();
          }

          @Override
          public CharSequence subSequence(int start, int end) {
            return longTestString.subSequence(start, end);
          }

          @Override
          public String toString() {
            return longTestString;
          }
        });
    assertEquals("4567890123456" + longTestString, t.toString());
  }
  public void testAppendableInterface() {
    CharTermAttributeImpl t = new CharTermAttributeImpl();
    Formatter formatter = new Formatter(t, Locale.ROOT);
    formatter.format("%d", 1234);
    assertEquals("1234", t.toString());
    formatter.format("%d", 5678);
    assertEquals("12345678", t.toString());
    t.append('9');
    assertEquals("123456789", t.toString());
    t.append((CharSequence) "0");
    assertEquals("1234567890", t.toString());
    t.append((CharSequence) "0123456789", 1, 3);
    assertEquals("123456789012", t.toString());
    t.append((CharSequence) CharBuffer.wrap("0123456789".toCharArray()), 3, 5);
    assertEquals("12345678901234", t.toString());
    t.append((CharSequence) t);
    assertEquals("1234567890123412345678901234", t.toString());
    t.append((CharSequence) new StringBuilder("0123456789"), 5, 7);
    assertEquals("123456789012341234567890123456", t.toString());
    t.append((CharSequence) new StringBuffer(t));
    assertEquals("123456789012341234567890123456123456789012341234567890123456", t.toString());
    // very wierd, to test if a subSlice is wrapped correct :)
    CharBuffer buf = CharBuffer.wrap("0123456789".toCharArray(), 3, 5);
    assertEquals("34567", buf.toString());
    t.setEmpty().append((CharSequence) buf, 1, 2);
    assertEquals("4", t.toString());
    CharTermAttribute t2 = new CharTermAttributeImpl();
    t2.append("test");
    t.append((CharSequence) t2);
    assertEquals("4test", t.toString());
    t.append((CharSequence) t2, 1, 2);
    assertEquals("4teste", t.toString());

    try {
      t.append((CharSequence) t2, 1, 5);
      fail("Should throw IndexOutOfBoundsException");
    } catch (IndexOutOfBoundsException iobe) {
    }

    try {
      t.append((CharSequence) t2, 1, 0);
      fail("Should throw IndexOutOfBoundsException");
    } catch (IndexOutOfBoundsException iobe) {
    }

    t.append((CharSequence) null);
    assertEquals("4testenull", t.toString());
  }