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 #type.'() {
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 = type == 'String' ? jsonObjectMapper.asJsonString(object) : jsonObjectMapper.asJsonBytes(object)
41 then: 'the result is a valid json string (can be parsed)'
42 def contentMap = new JsonSlurper().parseText(new String(content))
43 and: 'the parsed content is as expected'
44 assert contentMap.'test:bookstore'.'bookstore-name' == 'Chapters/Easons'
45 where: 'the following data stores are used'
46 type << ['String', 'bytes']
49 def 'Map a structured object to json String error.'() {
51 def object = new Object()
52 and: 'the Object mapper throws an exception'
53 spiedObjectMapper.writeValueAsString(object) >> { throw new JsonProcessingException('Sample problem'){} }
54 when: 'attempting to convert the object to a string'
55 jsonObjectMapper.asJsonString(object);
56 then: 'a Data Validation Exception is thrown'
57 def thrown = thrown(DataValidationException)
58 and: 'the details containing the original error message'
59 assert thrown.details == 'Sample problem'
62 def 'Map a structurally compatible object to class object of specific class type T.'() {
63 given: 'a map object model'
64 def contentMap = new JsonSlurper().parseText(TestUtils.getResourceFileContent('bookstore.json'))
65 when: 'converted into a Map'
66 def result = jsonObjectMapper.convertToValueType(contentMap, Map);
67 then: 'the result is a mapped into class of type Map'
68 assert result instanceof Map
69 and: 'the map contains the expected key'
70 assert result.containsKey('test:bookstore')
71 assert result.'test:bookstore'.categories[0].name == 'SciFi'
75 def 'Mapping an unstructured json string to class object of specific class type T.'() {
76 given: 'Unstructured json string'
77 def content = '{ "nest": { "birds": "bird"] } }'
78 when: 'mapping json string to given class type'
79 jsonObjectMapper.convertJsonString(content, Map);
80 then: 'an exception is thrown'
81 thrown(DataValidationException)
84 def 'Map an incompatible object to class object of specific class type T.'() {
85 given: 'a map object model'
86 def contentMap = new JsonSlurper().parseText(TestUtils.getResourceFileContent('bookstore.json'))
87 and: 'Object mapper throws an exception'
88 spiedObjectMapper.convertValue(*_) >> { throw new IllegalArgumentException() }
89 when: 'converted into specific class type'
90 jsonObjectMapper.convertToValueType(contentMap, Object);
91 then: 'an exception is thrown'
92 thrown(DataValidationException)
95 def 'Map a unstructured object to json String.'() {
96 given: 'Unstructured object'
97 def object = new Object()
98 and: 'disable serialization failure on empty bean'
99 spiedObjectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
100 when: 'the object is mapped to string'
101 jsonObjectMapper.asJsonString(object);
102 then: 'no exception is thrown'
106 def 'Map a structurally compatible json String to JsonNode.'() {
107 given: 'Unstructured object'
108 def content = '{ "nest": { "birds": "bird" } }'
109 when: 'the object is mapped to string'
110 def result = jsonObjectMapper.convertToJsonNode(content);
111 then: 'the result is a valid JsonNode'
112 result.fieldNames().next() == "nest"
115 def 'Map a unstructured json String to JsonNode.'() {
116 given: 'Unstructured object'
117 def content = '{ "nest": { "birds": "bird" }] }'
118 when: 'the object is mapped to string'
119 jsonObjectMapper.convertToJsonNode(content);
120 then: 'a data validation exception is thrown'
121 thrown(DataValidationException)