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115 changes: 115 additions & 0 deletions
115
src/test/java/com/fasterxml/jackson/databind/convert/CoerceIntToStringTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| package com.fasterxml.jackson.databind.convert; | ||
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| import com.fasterxml.jackson.core.JsonProcessingException; | ||
| import com.fasterxml.jackson.databind.BaseMapTest; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.fasterxml.jackson.databind.ObjectReader; | ||
| import com.fasterxml.jackson.databind.cfg.CoercionAction; | ||
| import com.fasterxml.jackson.databind.cfg.CoercionInputShape; | ||
| import com.fasterxml.jackson.databind.exc.MismatchedInputException; | ||
| import com.fasterxml.jackson.databind.type.LogicalType; | ||
|
|
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| public class CoerceIntToStringTest extends BaseMapTest | ||
| { | ||
| private final ObjectMapper DEFAULT_MAPPER = newJsonMapper(); | ||
|
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| private final ObjectMapper MAPPER_TO_FAIL = jsonMapperBuilder() | ||
| .withCoercionConfig(LogicalType.Textual, cfg -> | ||
| cfg.setCoercion(CoercionInputShape.Integer, CoercionAction.Fail)) | ||
| .build(); | ||
|
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| private final ObjectMapper MAPPER_TRY_CONVERT = jsonMapperBuilder() | ||
| .withCoercionConfig(LogicalType.Textual, cfg -> | ||
| cfg.setCoercion(CoercionInputShape.Integer, CoercionAction.TryConvert)) | ||
| .build(); | ||
|
|
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| private final ObjectMapper MAPPER_TO_NULL = jsonMapperBuilder() | ||
| .withCoercionConfig(LogicalType.Textual, cfg -> | ||
| cfg.setCoercion(CoercionInputShape.Integer, CoercionAction.AsNull)) | ||
| .build(); | ||
|
|
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| private final ObjectMapper MAPPER_TO_EMPTY = jsonMapperBuilder() | ||
| .withCoercionConfig(LogicalType.Textual, cfg -> | ||
| cfg.setCoercion(CoercionInputShape.Integer, CoercionAction.AsEmpty)) | ||
| .build(); | ||
|
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| public void testDefaultIntToStringCoercion() throws JsonProcessingException | ||
| { | ||
| assertSuccessfulIntToStringCoercionWith(DEFAULT_MAPPER); | ||
| } | ||
|
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| public void testCoerceConfigToConvert() throws JsonProcessingException | ||
| { | ||
| assertSuccessfulIntToStringCoercionWith(MAPPER_TRY_CONVERT); | ||
| } | ||
|
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| public void testCoerceConfigToNull() throws JsonProcessingException | ||
| { | ||
| assertNull(MAPPER_TO_NULL.readValue("1", String.class)); | ||
| StringWrapper w = MAPPER_TO_NULL.readValue("{\"str\": -5}", StringWrapper.class); | ||
| assertNull(w.str); | ||
| String[] arr = MAPPER_TO_NULL.readValue("[ 2 ]", String[].class); | ||
| assertEquals(1, arr.length); | ||
| assertNull(arr[0]); | ||
| } | ||
|
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| public void testCoerceConfigToEmpty() throws JsonProcessingException | ||
| { | ||
| assertEquals("", MAPPER_TO_EMPTY.readValue("3", String.class)); | ||
| StringWrapper w = MAPPER_TO_EMPTY.readValue("{\"str\": -5}", StringWrapper.class); | ||
| assertEquals("", w.str); | ||
| String[] arr = MAPPER_TO_EMPTY.readValue("[ 2 ]", String[].class); | ||
| assertEquals(1, arr.length); | ||
| assertEquals("", arr[0]); | ||
| } | ||
|
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| public void testCoerceConfigToFail() throws JsonProcessingException | ||
| { | ||
| _verifyCoerceFail(MAPPER_TO_FAIL, String.class, "3"); | ||
| _verifyCoerceFail(MAPPER_TO_FAIL, StringWrapper.class, "{\"str\": -5}", "string"); | ||
| _verifyCoerceFail(MAPPER_TO_FAIL, String[].class, "[ 2 ]", "element of `java.lang.String[]`"); | ||
| } | ||
|
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| /* | ||
| /******************************************************** | ||
| /* Helper methods | ||
| /******************************************************** | ||
| */ | ||
|
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| private void assertSuccessfulIntToStringCoercionWith(ObjectMapper objectMapper) | ||
| throws JsonProcessingException | ||
| { | ||
| assertEquals("3", objectMapper.readValue("3", String.class)); | ||
| assertEquals("-2", objectMapper.readValue("-2", String.class)); | ||
| { | ||
| StringWrapper w = objectMapper.readValue("{\"str\": -5}", StringWrapper.class); | ||
| assertEquals("-5", w.str); | ||
| String[] arr = objectMapper.readValue("[ 2 ]", String[].class); | ||
| assertEquals("2", arr[0]); | ||
| } | ||
| } | ||
|
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| private void _verifyCoerceFail(ObjectMapper m, Class<?> targetType, | ||
| String doc) throws JsonProcessingException | ||
| { | ||
| _verifyCoerceFail(m.reader(), targetType, doc, targetType.getName()); | ||
| } | ||
|
|
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| private void _verifyCoerceFail(ObjectMapper m, Class<?> targetType, | ||
| String doc, String targetTypeDesc) throws JsonProcessingException | ||
| { | ||
| _verifyCoerceFail(m.reader(), targetType, doc, targetTypeDesc); | ||
| } | ||
|
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| private void _verifyCoerceFail(ObjectReader r, Class<?> targetType, | ||
| String doc, String targetTypeDesc) throws JsonProcessingException | ||
| { | ||
| try { | ||
| r.forType(targetType).readValue(doc); | ||
| fail("Should not accept Integer for "+targetType.getName()+" when configured to"); | ||
| } catch (MismatchedInputException e) { | ||
| verifyException(e, "Cannot coerce Integer"); | ||
| verifyException(e, targetTypeDesc); | ||
| } | ||
| } | ||
| } |