2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2022 Nordix Foundation
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
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12 * distributed under the License is distributed on an "AS IS" BASIS,
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14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.cps.utils
23 import com.fasterxml.jackson.core.JsonProcessingException
24 import com.fasterxml.jackson.databind.ObjectMapper
25 import com.fasterxml.jackson.databind.SerializationFeature
26 import groovy.json.JsonSlurper
27 import org.onap.cps.TestUtils
28 import org.onap.cps.spi.exceptions.DataValidationException
29 import spock.lang.Specification
31 class JsonObjectMapperSpec extends Specification {
33 def spiedObjectMapper = Spy(ObjectMapper)
34 def jsonObjectMapper = new JsonObjectMapper(spiedObjectMapper)
36 def 'Map a structured object to json String.'() {
37 given: 'an object model'
38 def object = spiedObjectMapper.readValue(TestUtils.getResourceFileContent('bookstore.json'), Object)
39 when: 'the object is mapped to string'
40 def content = jsonObjectMapper.asJsonString(object);
41 then: 'the result is a valid json string (can be parsed)'
42 def contentMap = new JsonSlurper().parseText(content)
43 and: 'the parsed content is as expected'
44 assert contentMap.'test:bookstore'.'bookstore-name' == 'Chapters/Easons'
47 def 'Map a structured object to json String error.'() {
49 def object = new Object()
50 and: 'the Object mapper throws an exception'
51 spiedObjectMapper.writeValueAsString(object) >> { throw new JsonProcessingException('Sample problem'){} }
52 when: 'attempting to convert the object to a string'
53 jsonObjectMapper.asJsonString(object);
54 then: 'a Data Validation Exception is thrown'
55 def thrown = thrown(DataValidationException)
56 and: 'the details containing the original error message'
57 assert thrown.details == 'Sample problem'
60 def 'Map a structurally compatible object to class object of specific class type T.'() {
61 given: 'a map object model'
62 def contentMap = new JsonSlurper().parseText(TestUtils.getResourceFileContent('bookstore.json'))
63 when: 'converted into a Map'
64 def result = jsonObjectMapper.convertToValueType(contentMap, Map);
65 then: 'the result is a mapped into class of type Map'
66 assert result instanceof Map
67 and: 'the map contains the expected key'
68 assert result.containsKey('test:bookstore')
69 assert result.'test:bookstore'.categories[0].name == 'SciFi'
73 def 'Mapping an unstructured json string to class object of specific class type T.'() {
74 given: 'Unstructured json string'
75 def content = '{ "nest": { "birds": "bird"] } }'
76 when: 'mapping json string to given class type'
77 jsonObjectMapper.convertJsonString(content, Map);
78 then: 'an exception is thrown'
79 thrown(DataValidationException)
82 def 'Map an incompatible object to class object of specific class type T.'() {
83 given: 'a map object model'
84 def contentMap = new JsonSlurper().parseText(TestUtils.getResourceFileContent('bookstore.json'))
85 and: 'Object mapper throws an exception'
86 spiedObjectMapper.convertValue(*_) >> { throw new IllegalArgumentException() }
87 when: 'converted into specific class type'
88 jsonObjectMapper.convertToValueType(contentMap, Object);
89 then: 'an exception is thrown'
90 thrown(DataValidationException)
93 def 'Map a unstructured object to json String.'() {
94 given: 'Unstructured object'
95 def object = new Object()
96 and: 'disable serialization failure on empty bean'
97 spiedObjectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
98 when: 'the object is mapped to string'
99 jsonObjectMapper.asJsonString(object);
100 then: 'no exception is thrown'
104 def 'Map a structurally compatible json String to JsonNode.'() {
105 given: 'Unstructured object'
106 def content = '{ "nest": { "birds": "bird" } }'
107 when: 'the object is mapped to string'
108 def result = jsonObjectMapper.convertToJsonNode(content);
109 then: 'the result is a valid JsonNode'
110 result.fieldNames().next() == "nest"
113 def 'Map a unstructured json String to JsonNode.'() {
114 given: 'Unstructured object'
115 def content = '{ "nest": { "birds": "bird" }] }'
116 when: 'the object is mapped to string'
117 jsonObjectMapper.convertToJsonNode(content);
118 then: 'a data validation exception is thrown'
119 thrown(DataValidationException)