flink-connector-influxdb2/src/test/java/org/apache/flink/streaming/connectors/influxdb/sink/InfluxDBSinkBuilderTest.java

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 * 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
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 * Unless required by applicable law or agreed to in writing, software
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 * See the License for the specific language governing permissions and
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package org.apache.flink.streaming.connectors.influxdb.sink;

import static org.junit.jupiter.api.Assertions.*;

import org.apache.flink.streaming.connectors.influxdb.util.InfluxDBContainer;
import org.apache.flink.streaming.connectors.influxdb.util.InfluxDBTestSerializer;
import org.junit.jupiter.api.Test;

class InfluxDBSinkBuilderTest {

    @Test
    void shouldNotBuildSinkWhenURLIsNotProvided() {
        final NullPointerException exception =
                assertThrows(
                        NullPointerException.class,
                        () ->
                                InfluxDBSink.builder()
                                        .setInfluxDBSchemaSerializer(new InfluxDBTestSerializer())
                                        .setInfluxDBUsername(InfluxDBContainer.username)
                                        .setInfluxDBPassword(InfluxDBContainer.password)
                                        .setInfluxDBBucket(InfluxDBContainer.bucket)
                                        .setInfluxDBOrganization(InfluxDBContainer.organization)
                                        .build());
        assertEquals(exception.getMessage(), "The InfluxDB URL is required but not provided.");
    }

    @Test
    void shouldNotBuildSinkWhenTokenNotProvidedAndUsernameIsNotProvided() {
        final IllegalArgumentException exception =
                assertThrows(
                        IllegalArgumentException.class,
                        () ->
                                InfluxDBSink.builder()
                                        .setInfluxDBUrl("http://localhost:8086")
                                        .setInfluxDBPassword(InfluxDBContainer.password)
                                        .setInfluxDBBucket(InfluxDBContainer.bucket)
                                        .setInfluxDBOrganization(InfluxDBContainer.organization)
                                        .setInfluxDBSchemaSerializer(new InfluxDBTestSerializer())
                                        .build());
        assertEquals(exception.getMessage(),
                "Either the InfluxDB username and password or InfluxDB token are required but neither provided");
    }

    @Test
    void shouldNotBuildSinkWhenTokenNotProvidedAndPasswordIsNotProvided() {
        final IllegalArgumentException exception =
                assertThrows(
                        IllegalArgumentException.class,
                        () ->
                                InfluxDBSink.builder()
                                        .setInfluxDBUrl("http://localhost:8086")
                                        .setInfluxDBUsername(InfluxDBContainer.username)
                                        .setInfluxDBBucket(InfluxDBContainer.bucket)
                                        .setInfluxDBOrganization(InfluxDBContainer.organization)
                                        .setInfluxDBSchemaSerializer(new InfluxDBTestSerializer())
                                        .build());
        assertEquals(exception.getMessage(),
                "Either the InfluxDB username and password or InfluxDB token are required but neither provided");
    }

    @Test
    void shouldNotBuildSinkWhenTokenProvidedAndUsernamePasswordIsProvided() {
        final IllegalArgumentException exception =
                assertThrows(
                        IllegalArgumentException.class,
                        () ->
                                InfluxDBSink.builder()
                                        .setInfluxDBUrl("http://localhost:8086")
                                        .setInfluxDBToken(InfluxDBContainer.token)
                                        .setInfluxDBUsername(InfluxDBContainer.username)
                                        .setInfluxDBPassword(InfluxDBContainer.password)
                                        .setInfluxDBBucket(InfluxDBContainer.bucket)
                                        .setInfluxDBOrganization(InfluxDBContainer.organization)
                                        .setInfluxDBSchemaSerializer(new InfluxDBTestSerializer())
                                        .build());
        assertEquals(exception.getMessage(),
                "Either the InfluxDB username and password or InfluxDB token are required but both provided");
    }

    @Test
    void shouldNotBuildSinkWhenBucketIsNotProvided() {
        final NullPointerException exception =
                assertThrows(
                        NullPointerException.class,
                        () ->
                                InfluxDBSink.builder()
                                        .setInfluxDBUrl("http://localhost:8086")
                                        .setInfluxDBUsername(InfluxDBContainer.username)
                                        .setInfluxDBPassword(InfluxDBContainer.password)
                                        .setInfluxDBOrganization(InfluxDBContainer.organization)
                                        .setInfluxDBSchemaSerializer(new InfluxDBTestSerializer())
                                        .build());
        assertEquals(exception.getMessage(), "The Bucket name is required but not provided.");
    }

    @Test
    void shouldNotBuildSinkWhenOrganizationIsNotProvided() {
        final NullPointerException exception =
                assertThrows(
                        NullPointerException.class,
                        () ->
                                InfluxDBSink.builder()
                                        .setInfluxDBUrl("http://localhost:8086")
                                        .setInfluxDBUsername(InfluxDBContainer.username)
                                        .setInfluxDBPassword(InfluxDBContainer.password)
                                        .setInfluxDBBucket(InfluxDBContainer.bucket)
                                        .setInfluxDBSchemaSerializer(new InfluxDBTestSerializer())
                                        .build());
        assertEquals(exception.getMessage(), "The Organization name is required but not provided.");
    }

    @Test
    void shouldNotBuildSinkWhenSchemaSerializerIsNotProvided() {
        final NullPointerException exception =
                assertThrows(
                        NullPointerException.class,
                        () ->
                                InfluxDBSink.builder()
                                        .setInfluxDBUrl("http://localhost:8086")
                                        .setInfluxDBUsername(InfluxDBContainer.username)
                                        .setInfluxDBPassword(InfluxDBContainer.password)
                                        .setInfluxDBBucket(InfluxDBContainer.bucket)
                                        .setInfluxDBOrganization(InfluxDBContainer.organization)
                                        .build());
        assertEquals(exception.getMessage(), "Serialization schema is required but not provided.");
    }

    @Test
    void shouldNotBuildSinkWhenBufferSizeIsZero() {
        final IllegalArgumentException exception =
                assertThrows(
                        IllegalArgumentException.class,
                        () -> InfluxDBSink.builder().setWriteBufferSize(0));
        assertEquals(exception.getMessage(), "The buffer size should be greater than 0.");
    }
}