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92
src/test/java/com/fasterxml/jackson/databind/deser/filter/NullConversionsForEnumsTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| package com.fasterxml.jackson.databind.deser.filter; | ||
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| import java.util.EnumMap; | ||
| import java.util.EnumSet; | ||
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| import com.fasterxml.jackson.annotation.JsonSetter; | ||
| import com.fasterxml.jackson.annotation.Nulls; | ||
| import com.fasterxml.jackson.core.type.TypeReference; | ||
| import com.fasterxml.jackson.databind.BaseMapTest; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
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| public class NullConversionsForEnumsTest extends BaseMapTest | ||
| { | ||
| static class NullValueAsEmpty<T> { | ||
| @JsonSetter(nulls=Nulls.AS_EMPTY) | ||
| public T value; | ||
| } | ||
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| static class NullContentAsEmpty<T> { | ||
| @JsonSetter(contentNulls=Nulls.AS_EMPTY) | ||
| public T values; | ||
| } | ||
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| static class NullContentSkip<T> { | ||
| @JsonSetter(contentNulls=Nulls.SKIP) | ||
| public T values; | ||
| } | ||
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| /* | ||
| /********************************************************** | ||
| /* Test methods, for container values as empty | ||
| /********************************************************** | ||
| */ | ||
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| private final ObjectMapper MAPPER = newJsonMapper(); | ||
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| public void testEnumSetAsEmpty() throws Exception | ||
| { | ||
| NullValueAsEmpty<EnumSet<ABC>> result = MAPPER.readValue(aposToQuotes("{'value': null }"), | ||
| new TypeReference<NullValueAsEmpty<EnumSet<ABC>>>() { }); | ||
| assertNotNull(result.value); | ||
| assertEquals(0, result.value.size()); | ||
| } | ||
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| public void testEnumMapAsEmpty() throws Exception | ||
| { | ||
| NullValueAsEmpty<EnumMap<ABC, String>> result = MAPPER.readValue(aposToQuotes("{'value': null }"), | ||
| new TypeReference<NullValueAsEmpty<EnumMap<ABC, String>>>() { }); | ||
| assertNotNull(result.value); | ||
| assertEquals(0, result.value.size()); | ||
| } | ||
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| /* | ||
| /********************************************************** | ||
| /* Test methods, for container contents, null as empty | ||
| /********************************************************** | ||
| */ | ||
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| // // NOTE: no "empty" value for Enums, so can't use with EnumSet, only EnumMap | ||
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| public void testEnumMapNullsAsEmpty() throws Exception | ||
| { | ||
| NullContentAsEmpty<EnumMap<ABC, String>> result = MAPPER.readValue(aposToQuotes("{'values': {'B':null} }"), | ||
| new TypeReference<NullContentAsEmpty<EnumMap<ABC, String>>>() { }); | ||
| assertNotNull(result.values); | ||
| assertEquals(1, result.values.size()); | ||
| assertEquals("", result.values.get(ABC.B)); | ||
| } | ||
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| /* | ||
| /********************************************************** | ||
| /* Test methods, for container contents, skip nulls | ||
| /********************************************************** | ||
| */ | ||
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| public void testEnumSetSkipNulls() throws Exception | ||
| { | ||
| NullContentSkip<EnumSet<ABC>> result = MAPPER.readValue(aposToQuotes("{'values': [ null ]}"), | ||
| new TypeReference<NullContentSkip<EnumSet<ABC>>>() { }); | ||
| assertNotNull(result.values); | ||
| assertEquals(0, result.values.size()); | ||
| } | ||
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| public void testEnumMapSkipNulls() throws Exception | ||
| { | ||
| NullContentSkip<EnumMap<ABC, String>> result = MAPPER.readValue(aposToQuotes("{'values': {'B':null} }"), | ||
| new TypeReference<NullContentSkip<EnumMap<ABC, String>>>() { }); | ||
| assertNotNull(result.values); | ||
| assertEquals(0, result.values.size()); | ||
| } | ||
| } |