nifi-commons/nifi-json-utils/src/test/groovy/org/apache/nifi/processor/TestStandardValidators.groovy

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License") you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.nifi.processor

import org.apache.nifi.components.ValidationContext
import org.apache.nifi.components.ValidationResult
import org.apache.nifi.components.Validator
import org.apache.nifi.processor.util.JsonValidator
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test

import static groovy.json.JsonOutput.prettyPrint
import static groovy.json.JsonOutput.toJson
import static org.junit.Assert.assertFalse
import static org.junit.Assert.assertTrue
import static org.mockito.Mockito.mock

class TestStandardValidators {
    final String DUMMY_JSON_PROPERTY = "JSONProperty"
    Validator validator
    ValidationContext context

    @BeforeEach
    void setup() {
        validator = JsonValidator.INSTANCE
        context = mock(ValidationContext.class)
    }

    @Test
    void testFlat() {
        def msg = prettyPrint(toJson([
            Name: "Crockford, Douglas"
        ]))
        ValidationResult validationResult = validator.validate(DUMMY_JSON_PROPERTY, msg, context)
        assertTrue(validationResult.isValid())
    }

    @Test
    void testNested() {
        def msg = prettyPrint(toJson([
            Name: "Crockford, Douglas",
            ContactInfo: [
                Mobile: 987654321,
                Email: "mrx@xyz.zyx"
            ]
        ]))
        ValidationResult validationResult = validator.validate(DUMMY_JSON_PROPERTY, msg, context)
        assertTrue(validationResult.isValid())
    }

    @Test
    void testObjectWithArray() {
        def msg = prettyPrint(toJson([
            name: "Smith, John",
            age: 30,
            cars: [ "Ford", "BMW", "Fiat" ]
        ]))
        ValidationResult validationResult = validator.validate(DUMMY_JSON_PROPERTY, msg, context)
        assertTrue(validationResult.isValid())
    }

    @Test
    void testJSONArray() {
        def msg = prettyPrint(toJson([
            "one", "two", "three"
        ]))
        ValidationResult validationResult = validator.validate(DUMMY_JSON_PROPERTY, msg, context)
        assertTrue(validationResult.isValid())
    }

    @Test
    void testEmpty() {
        // Empty JSON
        ValidationResult validationResult = validator.validate(DUMMY_JSON_PROPERTY, "{}", context)
        assertTrue(validationResult.isValid())
    }

    @Test
    void testInvalidJson() {
        // Invalid JSON
        ValidationResult validationResult = validator.validate(DUMMY_JSON_PROPERTY, "\"Name\" : \"Smith, John\"", context)
        assertFalse(validationResult.isValid())
        assertTrue(validationResult.getExplanation().contains("not a valid JSON representation"))
        validationResult = validator.validate(DUMMY_JSON_PROPERTY, "bncjbhjfjhj", context)
        assertFalse(validationResult.isValid())
    }
}