YamlMessageConverterConfig.java

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package edu.ucsb.cs.scaffold.config;
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import com.fasterxml.jackson.databind.DeserializationFeature;
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import com.fasterxml.jackson.dataformat.yaml.YAMLMapper;
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import java.util.List;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.http.MediaType;
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import org.springframework.http.converter.HttpMessageConverter;
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import org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
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/**
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 * Registers a YAML HttpMessageConverter so that endpoints can accept {@code application/yaml}
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 * request bodies (e.g. {@code POST /api/concept}). YAML block scalars make multi-line Markdown
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 * fields far easier to enter through Swagger than JSON's escaped one-line strings.
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 *
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 * <p>The converter is <b>read-only</b> ({@code canWrite} is false): it only deserializes request
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 * bodies. Responses continue to be serialized as JSON by the default converters, even for clients
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 * that send {@code Accept: *&#47;*}.
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 */
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@Configuration
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public class YamlMessageConverterConfig implements WebMvcConfigurer {
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  @Override
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  public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
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    converters.add(new YamlHttpMessageConverter());
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  }
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  static class YamlHttpMessageConverter extends AbstractJackson2HttpMessageConverter {
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    YamlHttpMessageConverter() {
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      // Unknown properties are ignored, matching Spring Boot's default JSON behavior.
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      super(
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          YAMLMapper.builder().disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES).build(),
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          MediaType.parseMediaType("application/yaml"),
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          MediaType.parseMediaType("application/x-yaml"),
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          MediaType.parseMediaType("text/yaml"));
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    }
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    @Override
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    public boolean canWrite(Class<?> clazz, MediaType mediaType) {
41 1 1. canWrite : replaced boolean return with true for edu/ucsb/cs/scaffold/config/YamlMessageConverterConfig$YamlHttpMessageConverter::canWrite → KILLED
 
      return false;
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    }
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  }
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}

Mutations

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1.1
Location : canWrite
Killed by : edu.ucsb.cs.scaffold.config.YamlMessageConverterConfigTests.[engine:junit-jupiter]/[class:edu.ucsb.cs.scaffold.config.YamlMessageConverterConfigTests]/[method:testYamlHttpMessageConverter()] replaced boolean return with true for edu/ucsb/cs/scaffold/config/YamlMessageConverterConfig$YamlHttpMessageConverter::canWrite → KILLED

Active mutators

Tests examined


Report generated by PIT 1.17.0