Examples of edu.buffalo.cse.ir.wikiindexer.tokenizer.TokenStream.reset()

Package edu.buffalo.cse.ir.wikiindexer.tokenizer

Class edu.buffalo.cse.ir.wikiindexer.tokenizer.TokenStream

Examples of edu.buffalo.cse.ir.wikiindexer.tokenizer.TokenStream.reset()

edu.buffalo.cse.ir.wikiindexer.tokenizer.TokenStream.reset()
Iterator method: Method to reset the iterator to the start of the stream next must be called to get a token

   */
  @Test
  public void testReset() {
    //empty / null
    TokenStream stream = new TokenStream((String)null);
    stream.reset();
    assertNull(stream.next());
    stream = null;
    
    stream = new TokenStream("");
    stream.reset();

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    stream.reset();
    assertNull(stream.next());
    stream = null;
    
    stream = new TokenStream("");
    stream.reset();
    assertNull(stream.next());
    stream = null;
    
    //positive run
    stream = new TokenStream("this");

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    //positive run
    stream = new TokenStream("this");
    stream.append("is","a","test","stream");
    stream.next();
    stream.reset();
    assertEquals("this", stream.next());
    stream = null;
  }


  /**

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    stream = null;
    
    //with seek
    stream = new TokenStream("this");
    stream.append("is","a","test","stream");
    stream.reset();
    assertFalse(stream.hasPrevious());
    stream = null;
    
    //forward and reverse
    stream = new TokenStream("this");

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    assertEquals("this", stream.next());
    stream.previous();
    assertEquals("this", stream.next());
    assertEquals("is", stream.next());
    assertEquals("a", stream.next());
    stream.reset();
    assertEquals("this", stream.next());
    stream = null;
    
    //with remove
    stream = new TokenStream("this");

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    assertEquals("stream", stream.previous());
    stream.next();
    assertEquals("stream", stream.previous());
    assertEquals("test", stream.previous());
    assertEquals("a", stream.previous());
    stream.reset();
    assertEquals("this", stream.next());
    stream = null;
    
    //with remove
    stream = new TokenStream("this");

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    stream.append("is","a","test","stream");
    stream.seekEnd();
    assertFalse(stream.mergeWithNext());
    
    //proper merge
    stream.reset();
    assertTrue(stream.mergeWithNext());
    assertEquals("this is", stream.next());
    assertEquals(4, stream.getAllTokens().size());
    stream = null;

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