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Polish support for reactive Elasticsearch healthcheck
Fixes gh-21042
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147 changes: 147 additions & 0 deletions
147
...springframework/boot/actuate/elasticsearch/ElasticsearchReactiveHealthIndicatorTests.java
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| /* | ||
| * Copyright 2012-2020 the original author or authors. | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * https://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. | ||
| */ | ||
|
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| package org.springframework.boot.actuate.elasticsearch; | ||
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| import java.util.Map; | ||
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| import okhttp3.mockwebserver.MockResponse; | ||
| import okhttp3.mockwebserver.MockWebServer; | ||
| import org.junit.jupiter.api.AfterEach; | ||
| import org.junit.jupiter.api.BeforeEach; | ||
| import org.junit.jupiter.api.Test; | ||
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| import org.springframework.boot.actuate.health.Health; | ||
| import org.springframework.boot.actuate.health.Status; | ||
| import org.springframework.data.elasticsearch.client.ClientConfiguration; | ||
| import org.springframework.data.elasticsearch.client.reactive.DefaultReactiveElasticsearchClient; | ||
| import org.springframework.data.elasticsearch.client.reactive.ReactiveElasticsearchClient; | ||
| import org.springframework.http.HttpHeaders; | ||
| import org.springframework.http.HttpStatus; | ||
| import org.springframework.http.MediaType; | ||
| import org.springframework.web.reactive.function.client.WebClient; | ||
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| import static org.assertj.core.api.Assertions.assertThat; | ||
| import static org.assertj.core.api.Assertions.entry; | ||
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| /** | ||
| * Tests for {@link ElasticsearchReactiveHealthIndicator} | ||
| * | ||
| * @author Brian Clozel | ||
| */ | ||
| class ElasticsearchReactiveHealthIndicatorTests { | ||
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| private MockWebServer server; | ||
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| private WebClient.Builder builder; | ||
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| private ElasticsearchReactiveHealthIndicator healthIndicator; | ||
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| @BeforeEach | ||
| void setup() throws Exception { | ||
| this.server = new MockWebServer(); | ||
| this.server.start(); | ||
| this.builder = WebClient.builder().baseUrl(this.server.url("/").toString()); | ||
| ReactiveElasticsearchClient client = DefaultReactiveElasticsearchClient | ||
| .create(ClientConfiguration.create(this.server.getHostName() + ":" + this.server.getPort())); | ||
| this.healthIndicator = new ElasticsearchReactiveHealthIndicator(client); | ||
| } | ||
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| @AfterEach | ||
| void shutdown() throws Exception { | ||
| this.server.shutdown(); | ||
| } | ||
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| @Test | ||
| void elasticsearchIsUp() { | ||
| setupMockResponse(200, "green"); | ||
| Health health = this.healthIndicator.health().block(); | ||
| assertThat(health.getStatus()).isEqualTo(Status.UP); | ||
| assertHealthDetailsWithStatus(health.getDetails(), "green"); | ||
| } | ||
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| @Test | ||
| void elasticsearchWithYellowStatusIsUp() { | ||
| setupMockResponse(200, "yellow"); | ||
| Health health = this.healthIndicator.health().block(); | ||
| assertThat(health.getStatus()).isEqualTo(Status.UP); | ||
| assertHealthDetailsWithStatus(health.getDetails(), "yellow"); | ||
| } | ||
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| @Test | ||
| void elasticsearchIsDown() throws Exception { | ||
| this.server.shutdown(); | ||
| Health health = this.healthIndicator.health().block(); | ||
| assertThat(health.getStatus()).isEqualTo(Status.DOWN); | ||
| assertThat(health.getDetails().get("error")).asString() | ||
| .contains("org.springframework.data.elasticsearch.client.NoReachableHostException"); | ||
| } | ||
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| @Test | ||
| void elasticsearchIsDownByResponseCode() { | ||
| // first enqueue an OK response since the HostChecker first sends a HEAD request | ||
| // to "/" | ||
| this.server.enqueue(new MockResponse().setResponseCode(HttpStatus.OK.value())); | ||
| this.server.enqueue(new MockResponse().setResponseCode(HttpStatus.INTERNAL_SERVER_ERROR.value())); | ||
| Health health = this.healthIndicator.health().block(); | ||
| assertThat(health.getStatus()).isEqualTo(Status.DOWN); | ||
| assertThat(health.getDetails().get("statusCode")).asString().isEqualTo("500"); | ||
| assertThat(health.getDetails().get("reasonPhrase")).asString().isEqualTo("Internal Server Error"); | ||
| } | ||
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| @Test | ||
| void elasticsearchIsOutOfServiceByStatus() { | ||
| setupMockResponse(200, "red"); | ||
| Health health = this.healthIndicator.health().block(); | ||
| assertThat(health.getStatus()).isEqualTo(Status.OUT_OF_SERVICE); | ||
| assertHealthDetailsWithStatus(health.getDetails(), "red"); | ||
| } | ||
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| private void assertHealthDetailsWithStatus(Map<String, Object> details, String status) { | ||
| assertThat(details).contains(entry("cluster_name", "elasticsearch"), entry("status", status), | ||
| entry("timed_out", false), entry("number_of_nodes", 1), entry("number_of_data_nodes", 1), | ||
| entry("active_primary_shards", 0), entry("active_shards", 0), entry("relocating_shards", 0), | ||
| entry("initializing_shards", 0), entry("unassigned_shards", 0), entry("delayed_unassigned_shards", 0), | ||
| entry("number_of_pending_tasks", 0), entry("number_of_in_flight_fetch", 0), | ||
| entry("task_max_waiting_in_queue_millis", 0), entry("active_shards_percent_as_number", 100.0)); | ||
| } | ||
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| private void setupMockResponse(int responseCode, String status) { | ||
| // first enqueue an OK response since the HostChecker first sends a HEAD request | ||
| // to "/" | ||
| this.server.enqueue(new MockResponse()); | ||
| MockResponse mockResponse = new MockResponse().setResponseCode(HttpStatus.valueOf(responseCode).value()) | ||
| .setBody(createJsonResult(responseCode, status)) | ||
| .setHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE); | ||
| this.server.enqueue(mockResponse); | ||
| } | ||
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| private String createJsonResult(int responseCode, String status) { | ||
| if (responseCode == 200) { | ||
| return String.format( | ||
| "{\"cluster_name\":\"elasticsearch\"," | ||
| + "\"status\":\"%s\",\"timed_out\":false,\"number_of_nodes\":1," | ||
| + "\"number_of_data_nodes\":1,\"active_primary_shards\":0," | ||
| + "\"active_shards\":0,\"relocating_shards\":0,\"initializing_shards\":0," | ||
| + "\"unassigned_shards\":0,\"delayed_unassigned_shards\":0," | ||
| + "\"number_of_pending_tasks\":0,\"number_of_in_flight_fetch\":0," | ||
| + "\"task_max_waiting_in_queue_millis\":0,\"active_shards_percent_as_number\":100.0}", | ||
| status); | ||
| } | ||
| return "{\n \"error\": \"Server Error\",\n \"status\": " + responseCode + "\n}"; | ||
| } | ||
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| } |