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Add failing test for #400 (yaml, char decoding) #401

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Merged
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Mar 8, 2023
Merged

Add failing test for #400 (yaml, char decoding) #401

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29 changes: 29 additions & 0 deletions yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/failing/FuzzYAMLRead50431Test.java
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package com.fasterxml.jackson.dataformat.yaml.failing;

import com.fasterxml.jackson.core.exc.StreamReadException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.ModuleTestBase;

/**
* Reproduction of:
*
* https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50431
*/
public class FuzzYAMLRead50431Test extends ModuleTestBase
{
private final ObjectMapper YAML_MAPPER = newObjectMapper();

// https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50431
public void testUnicodeDecoding50431() throws Exception
{
String input = "\n\"\\UE30EEE";
try {
YAML_MAPPER.readTree(input);
fail("Should not pass");
} catch (StreamReadException e) {
// Not sure what to verify, but should be exposed as one of Jackson's
// exceptions (or possibly IOException)
verifyException(e, "Not a valid Unicode code point: 0xE30EEE");
}
}
}