lucene 4: fix TokenFilterTests

Author: imotov

src/test/java/org/apache/lucene/analysis/miscellaneous/TruncateTokenFilterTests.java

@@ -49,6 +49,7 @@ protected TokenStreamComponents createComponents(String fieldName,
  };
 
  TokenStream test = analyzer.tokenStream("test", new StringReader("a bb ccc dddd eeeee"));
+ test.reset();
  CharTermAttribute termAttribute = test.addAttribute(CharTermAttribute.class);
  assertThat(test.incrementToken(), equalTo(true));
  assertThat(termAttribute.toString(), equalTo("a"));

src/test/java/org/apache/lucene/analysis/miscellaneous/UniqueTokenFilterTests.java

@@ -49,6 +49,7 @@ protected TokenStreamComponents createComponents(String fieldName,
  };
 
  TokenStream test = analyzer.tokenStream("test", new StringReader("this test with test"));
+ test.reset();
  CharTermAttribute termAttribute = test.addAttribute(CharTermAttribute.class);
  assertThat(test.incrementToken(), equalTo(true));
  assertThat(termAttribute.toString(), equalTo("this"));