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| 1 | +package com.fasterxml.jackson.failing; |
| 2 | + |
| 3 | +import com.fasterxml.jackson.core.BaseTest; |
| 4 | +import com.fasterxml.jackson.core.JsonFactory; |
| 5 | +import com.fasterxml.jackson.core.JsonParser; |
| 6 | +import com.fasterxml.jackson.core.JsonToken; |
| 7 | +import com.fasterxml.jackson.core.TokenStreamFactory; |
| 8 | +import com.fasterxml.jackson.core.filter.FilteringParserDelegate; |
| 9 | +import com.fasterxml.jackson.core.filter.TokenFilter; |
| 10 | +import com.fasterxml.jackson.core.filter.TokenFilter.Inclusion; |
| 11 | + |
| 12 | +// for [core#708] |
| 13 | +public class ParserFilterEmpty708Test extends BaseTest |
| 14 | +{ |
| 15 | + // Could actually just return basic TokenFilter but... |
| 16 | + static class IncludeAllFilter extends TokenFilter { |
| 17 | + @Override |
| 18 | + public TokenFilter includeProperty(String name) { |
| 19 | + return this; |
| 20 | + } |
| 21 | + } |
| 22 | + |
| 23 | + /* |
| 24 | + /********************************************************************** |
| 25 | + /* Test methods |
| 26 | + /********************************************************************** |
| 27 | + */ |
| 28 | + |
| 29 | + private final JsonFactory JSON_F = newStreamFactory(); |
| 30 | + |
| 31 | + // [core#708] |
| 32 | + public void testEmptyArray() throws Exception |
| 33 | + { |
| 34 | + final String json = "[ ]"; |
| 35 | + // should become: {"value":12} |
| 36 | + JsonParser p0 = _createParser(JSON_F, json); |
| 37 | + JsonParser p = new FilteringParserDelegate(p0, |
| 38 | + new IncludeAllFilter(), |
| 39 | + Inclusion.INCLUDE_ALL_AND_PATH, |
| 40 | + true // multipleMatches |
| 41 | + ); |
| 42 | + |
| 43 | + assertToken(JsonToken.START_ARRAY, p.nextToken()); |
| 44 | + assertToken(JsonToken.END_ARRAY, p.nextToken()); |
| 45 | + assertNull(p.nextToken()); |
| 46 | + p.close(); |
| 47 | + } |
| 48 | + |
| 49 | + // [core#708] |
| 50 | + public void testEmptyObject() throws Exception |
| 51 | + { |
| 52 | + final String json = "{ }"; |
| 53 | + // should become: {"value":12} |
| 54 | + JsonParser p0 = _createParser(JSON_F, json); |
| 55 | + JsonParser p = new FilteringParserDelegate(p0, |
| 56 | + new IncludeAllFilter(), |
| 57 | + Inclusion.INCLUDE_ALL_AND_PATH, |
| 58 | + true // multipleMatches |
| 59 | + ); |
| 60 | + |
| 61 | + assertToken(JsonToken.START_OBJECT, p.nextToken()); |
| 62 | + assertToken(JsonToken.END_OBJECT, p.nextToken()); |
| 63 | + assertNull(p.nextToken()); |
| 64 | + p.close(); |
| 65 | + } |
| 66 | + |
| 67 | + /* |
| 68 | + /********************************************************************** |
| 69 | + /* Helper methods |
| 70 | + /********************************************************************** |
| 71 | + */ |
| 72 | + |
| 73 | + private JsonParser _createParser(TokenStreamFactory f, String json) throws Exception { |
| 74 | + return f.createParser(json); |
| 75 | + } |
| 76 | +} |
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