mirror of
https://github.com/open-metadata/OpenMetadata.git
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754 lines
18 KiB
Python
754 lines
18 KiB
Python
# Copyright 2021 Collate
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Avro parser tests
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"""
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from unittest import TestCase
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from metadata.parsers.avro_parser import parse_avro_schema
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SAMPLE_AVRO_SCHEMA = """
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{
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"namespace": "openmetadata.kafka",
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"name": "level",
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"type": "record",
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"doc": "This is a first level record",
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"fields": [
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{
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"name": "uid",
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"type": "int",
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"doc": "The field represents unique id"
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},
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{
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"name": "somefield",
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"type": "string"
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},
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{
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"name": "options",
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"doc": "The field represents options array",
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"type": {
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"type": "array",
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"items": {
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"type": "record",
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"name": "lvl2_record",
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"doc": "The field represents a level 2 record",
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"fields": [
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{
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"name": "item1_lvl2",
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"type": "string"
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},
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{
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"name": "item2_lvl2",
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"doc": "level 2 array",
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"type": {
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"type": "array",
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"items": {
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"type": "record",
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"name": "lvl3_record",
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"fields": [
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{
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"name": "item1_lvl3",
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"type": "string",
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"doc": "The field represents level3 item"
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},
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{
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"name": "item2_lvl3",
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"type": "string"
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}
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]
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}
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}
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}
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]
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}
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}
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}
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]
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}
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"""
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RECURSIVE_AVRO_SCHEMA = """
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{
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"name":"MainRecord",
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"type":"record",
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"fields":[
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{
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"default":"None",
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"name":"NestedRecord",
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"type":[
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"null",
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{
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"fields":[
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{
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"default":"None",
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"name":"FieldA",
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"type":[
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"null",
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{
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"items":{
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"fields":[
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{
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"name":"FieldAA",
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"type":"string"
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},
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{
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"default":"None",
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"name":"FieldBB",
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"type":[
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"null",
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"string"
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]
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},
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{
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"default":"None",
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"name":"FieldCC",
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"type":[
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"null",
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"RecursionIssueRecord"
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]
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}
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],
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"name":"RecursionIssueRecord",
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"type":"record"
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},
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"type":"array"
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}
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]
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}
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],
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"name":"FieldInNestedRecord",
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"type":"record"
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}
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]
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}
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]
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}
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"""
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ARRAY_OF_STR = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "matrix",
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"type": {
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"type": "array",
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"items": "string"
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}
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}
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]
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}
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"""
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ARRAY_OF_ARRAY = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "matrix",
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"type": {
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"type": "array",
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"items": {
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"type": "array",
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"items": "int"
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}
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}
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}
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]
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}
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"""
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ARRAY_OF_ARRAY_OF_RECORD = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "matrix",
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"type": {
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"type": "array",
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"items": {
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"type": "array",
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"items": {
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"type": "record",
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"name": "Record",
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"fields": [
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{
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"name": "field1",
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"type": "string"
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},
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{
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"name": "field2",
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"type": "int"
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}
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]
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}
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}
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}
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}
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]
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}
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"""
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ARRAY_OF_NESTED_ARRAY = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "matrix",
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"type": {
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"type": "array",
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"items": {
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"type": "array",
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"items": {
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"type": "array",
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"items": {
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"type": "array",
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"items": {
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"type": "array",
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"items": "int"
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}
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}
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}
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}
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}
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}
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]
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}
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"""
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ARRAY_OF_NESTED_ARRAY_WITH_CHILD = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "matrix",
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"type": {
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"type": "array",
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"items": {
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"type": "array",
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"items": {
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"type": "array",
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"items": {
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"type": "array",
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"items": {
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"type": "array",
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"items":{
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"type": "record",
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"name": "Record",
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"fields": [
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{
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"name": "field1",
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"type": "string"
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},
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{
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"name": "field2",
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"type": "int"
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}
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]
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}
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}
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}
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}
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}
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}
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}
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]
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}
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"""
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UNION_EXAMPLE_1 = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "id",
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"type": ["null","int"]
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}
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]
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}
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"""
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UNION_EXAMPLE_2 = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "id",
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"type": ["null","int","string","boolean"]
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}
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]
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}
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"""
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UNION_EXAMPLE_3 = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "id",
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"type": [
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"null",
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{
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"type": "record",
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"name": "Record",
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"fields": [
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{
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"name": "field1",
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"type": "string"
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},
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{
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"name": "field2",
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"type": "int"
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}
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]
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}
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]
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}
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]
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}
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"""
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UNION_EXAMPLE_4 = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "id",
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"type": [
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"null",
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{
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"type": "record",
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"name": "Record",
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"fields": [
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{
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"name": "field1",
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"type": "string"
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},
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{
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"name": "field2",
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"type": "int"
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}
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]
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},
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{
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"type": "record",
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"name": "Record2",
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"fields": [
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{
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"name": "field1",
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"type": "string"
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},
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{
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"name": "field2",
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"type": "int"
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}
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]
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}
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]
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}
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]
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}
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"""
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UNION_OF_STR_AND_RECORD = """
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{
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"type": "record",
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"name": "ArrayOfArrays",
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"fields": [
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{
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"name": "id",
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"type": [
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"string",
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{
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"type": "record",
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"name": "Record",
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"fields": [
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{
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"name": "field1",
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"type": "string"
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},
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{
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"name": "field2",
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"type": "int"
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}
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]
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}
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]
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}
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]
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}
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"""
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UNION_OF_ARRAY = """
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{
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"type": "record",
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"name": "UnionOfArray",
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"fields": [
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{
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"name": "matrix",
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"type":[
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"null",
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{
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"type": "array",
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"items": "int"
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}
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]
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}
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]
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}
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"""
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UNION_OF_ARRAY_OF_RECORD = """
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{
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"type": "record",
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"name": "UnionOfArray",
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"fields": [
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{
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"name": "matrix",
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"type":[
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"null",
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{
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"type": "array",
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"items": {
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"type": "record",
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"name": "Record2",
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"fields": [
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{
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"name": "field1",
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"type": "string"
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},
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{
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"name": "field2",
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"type": "int"
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}
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]
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}
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}
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]
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}
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]
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}
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"""
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UNION_OF_ARRAY_OF_RECORD_1 = """
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{
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"type": "record",
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"name": "UnionOfArray",
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"fields": [
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{
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"name": "matrix",
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"type":[
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"int",
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{
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"type": "array",
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"items": {
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"type": "record",
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"name": "Record2",
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"fields": [
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{
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"name": "field1",
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"type": "string"
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},
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{
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"name": "field2",
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"type": "int"
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}
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]
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}
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}
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]
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}
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]
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}
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"""
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RECORD_INSIDE_RECORD = """
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{
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"type": "record",
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"name": "OuterRecord",
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"fields": [
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{
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"name": "id",
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"type": "int"
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},
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{
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"name": "name",
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"type": "string"
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},
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{
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"name": "innerRecord",
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"type": {
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"type": "record",
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"name": "InnerRecord",
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"fields": [
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{
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"name": "address",
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"type": "string"
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},
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{
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"name": "phoneNumbers",
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"type": {
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"type": "array",
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"items": "string"
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}
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}
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]
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}
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},
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{
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"name": "tags",
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"type": {
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"type": "array",
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"items": "string"
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}
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}
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]
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}
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"""
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class AvroParserTests(TestCase):
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"""
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Check methods from avro_parser.py
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"""
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parsed_schema = parse_avro_schema(SAMPLE_AVRO_SCHEMA)
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def test_first_level(self):
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"""
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Test nested schema
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"""
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self.assertEqual(self.parsed_schema[0].name.__root__, "level")
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self.assertEqual(
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self.parsed_schema[0].description.__root__, "This is a first level record"
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)
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self.assertEqual(self.parsed_schema[0].dataType.name, "RECORD")
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def test_second_level(self):
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"""
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Test nested schema
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"""
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children = self.parsed_schema[0].children
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field_names = {str(field.name.__root__) for field in children}
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self.assertEqual(
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field_names,
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{"uid", "somefield", "options"},
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)
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field_types = {str(field.dataType.name) for field in children}
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self.assertEqual(field_types, {"INT", "STRING", "ARRAY"})
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field_descriptions = {
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field.description.__root__ if field.description else None
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for field in children
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}
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self.assertEqual(
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field_descriptions,
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{
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"The field represents unique id",
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None,
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"The field represents options array",
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},
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)
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def test_third_level(self):
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"""
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Test nested schema
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"""
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level3_record = self.parsed_schema[0].children[2].children[0]
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children = level3_record.children
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self.assertEqual(level3_record.name.__root__, "lvl2_record")
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self.assertEqual(
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level3_record.description.__root__, "The field represents a level 2 record"
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)
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self.assertEqual(level3_record.dataType.name, "RECORD")
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field_names = {str(field.name.__root__) for field in children}
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self.assertEqual(
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field_names,
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{"item1_lvl2", "item2_lvl2"},
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)
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field_types = {str(field.dataType.name) for field in children}
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self.assertEqual(field_types, {"STRING", "ARRAY"})
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field_descriptions = {
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field.description.__root__ if field.description else None
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for field in children
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}
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self.assertEqual(field_descriptions, {None, "level 2 array"})
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def test_fourth_level(self):
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"""
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Test nested schema
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"""
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level3_record = self.parsed_schema[0].children[2].children[0]
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children = level3_record.children[1].children[0].children
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field_names = {str(field.name.__root__) for field in children}
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self.assertEqual(
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field_names,
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{"item1_lvl3", "item2_lvl3"},
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)
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field_types = {str(field.dataType.name) for field in children}
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self.assertEqual(field_types, {"STRING"})
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def parse_schema_assert_without_child(self, schema: str, display: str):
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example = parse_avro_schema(schema)
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self.assertIsNotNone(example) # is parsed
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field = example[0].children[0]
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self.assertEqual(field.dataTypeDisplay, display)
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self.assertIsNone(field.children) # no child
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def parse_schema_assert_one_child(self, schema: str, display: str):
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example = parse_avro_schema(schema)
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self.assertIsNotNone(example) # is parsed
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field = example[0].children[0]
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self.assertEqual(field.dataTypeDisplay, display)
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# has one child
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self.assertIsNotNone(field.children)
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self.assertEqual(len(field.children), 1)
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def test_array_parsing(self):
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"""
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Test array parsing
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"""
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self.parse_schema_assert_without_child(ARRAY_OF_STR, "ARRAY<string>")
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self.parse_schema_assert_without_child(ARRAY_OF_ARRAY, "ARRAY<ARRAY<int>>")
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self.parse_schema_assert_without_child(
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ARRAY_OF_NESTED_ARRAY, "ARRAY<ARRAY<ARRAY<ARRAY<ARRAY<int>>>>>"
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)
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self.parse_schema_assert_one_child(
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ARRAY_OF_ARRAY_OF_RECORD, "ARRAY<ARRAY<record>>"
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)
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self.parse_schema_assert_one_child(
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ARRAY_OF_NESTED_ARRAY_WITH_CHILD,
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"ARRAY<ARRAY<ARRAY<ARRAY<ARRAY<record>>>>>",
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)
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|
|
def test_union_parsing(self):
|
|
"""
|
|
Test union parsing
|
|
"""
|
|
self.parse_schema_assert_without_child(UNION_EXAMPLE_1, "UNION<null,int>")
|
|
self.parse_schema_assert_without_child(
|
|
UNION_EXAMPLE_2, "UNION<null,int,string,boolean>"
|
|
)
|
|
self.parse_schema_assert_one_child(UNION_EXAMPLE_3, "UNION<null,record>")
|
|
self.parse_schema_assert_without_child(
|
|
UNION_EXAMPLE_4, "UNION<null,record,record>"
|
|
)
|
|
self.parse_schema_assert_without_child(UNION_OF_ARRAY, "UNION<null,ARRAY<int>>")
|
|
self.parse_schema_assert_without_child(
|
|
UNION_OF_STR_AND_RECORD, "UNION<string,record>"
|
|
)
|
|
self.parse_schema_assert_one_child(
|
|
UNION_OF_ARRAY_OF_RECORD, "UNION<null,ARRAY<record>>"
|
|
)
|
|
self.parse_schema_assert_without_child(
|
|
UNION_OF_ARRAY_OF_RECORD_1, "UNION<int,array>"
|
|
)
|
|
|
|
def test_nested_record_parsing(self):
|
|
parsed_record_schema = parse_avro_schema(RECORD_INSIDE_RECORD)
|
|
|
|
# test 1st level record
|
|
self.assertEqual(parsed_record_schema[0].name.__root__, "OuterRecord")
|
|
self.assertEqual(parsed_record_schema[0].dataType.name, "RECORD")
|
|
|
|
# test 2nd level record
|
|
self.assertEqual(
|
|
parsed_record_schema[0].children[2].name.__root__, "innerRecord"
|
|
)
|
|
self.assertEqual(parsed_record_schema[0].children[2].dataType.name, "RECORD")
|
|
|
|
# test fields inside 2nd level record
|
|
self.assertEqual(
|
|
parsed_record_schema[0].children[2].children[0].name.__root__, "InnerRecord"
|
|
)
|
|
self.assertEqual(
|
|
parsed_record_schema[0].children[2].children[0].dataType.name, "RECORD"
|
|
)
|
|
self.assertEqual(
|
|
parsed_record_schema[0].children[2].children[0].children[1].name.__root__,
|
|
"phoneNumbers",
|
|
)
|
|
self.assertEqual(
|
|
parsed_record_schema[0].children[2].children[0].children[1].dataType.name,
|
|
"ARRAY",
|
|
)
|
|
|
|
def test_recursive_record_parsing(self):
|
|
parsed_recursive_schema = parse_avro_schema(RECURSIVE_AVRO_SCHEMA)
|
|
|
|
# test that the recursive schema stops processing after 1st occurrence
|
|
self.assertEqual(
|
|
parsed_recursive_schema[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[0]
|
|
.name.__root__,
|
|
"RecursionIssueRecord",
|
|
)
|
|
self.assertEqual(
|
|
parsed_recursive_schema[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[2]
|
|
.name.__root__,
|
|
"FieldCC",
|
|
)
|
|
self.assertEqual(
|
|
parsed_recursive_schema[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[2]
|
|
.children[0]
|
|
.name.__root__,
|
|
"RecursionIssueRecord",
|
|
)
|
|
self.assertIsNone(
|
|
parsed_recursive_schema[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[0]
|
|
.children[2]
|
|
.children[0]
|
|
.children
|
|
)
|