Make Health and Status immutable
Update Health and Status objects to be immutable, update the existing builder methods to return new instances and add static convenience methods to Health.pull/944/head
Phillip Webb
11 years ago
parent
660d9e24dc
commit
aa03d9a41c
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/*
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* Copyright 2012-2014 the original author or authors.
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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package org.springframework.boot.actuate.health;
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import java.util.Collections;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.rules.ExpectedException;
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import static org.hamcrest.Matchers.equalTo;
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import static org.hamcrest.Matchers.not;
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import static org.junit.Assert.assertThat;
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/**
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* Tests for {@link Health}.
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*
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* @author Phillip Webb
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*/
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public class HealthTests {
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@Rule
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public ExpectedException thrown = ExpectedException.none();
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@Test
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public void statusMustNotBeNull() throws Exception {
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this.thrown.expect(IllegalArgumentException.class);
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this.thrown.expectMessage("Status must not be null");
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new Health(null, null);
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}
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@Test
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public void createWithStatus() throws Exception {
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Health health = new Health(Status.UP, null);
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assertThat(health.getStatus(), equalTo(Status.UP));
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assertThat(health.getDetails().size(), equalTo(0));
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}
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@Test
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public void createWithDetails() throws Exception {
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Health health = new Health(Status.UP, Collections.singletonMap("a", "b"));
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assertThat(health.getStatus(), equalTo(Status.UP));
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assertThat(health.getDetails().get("a"), equalTo((Object) "b"));
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}
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@Test
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public void equalsAndHashCode() throws Exception {
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Health h1 = new Health(Status.UP, Collections.singletonMap("a", "b"));
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Health h2 = new Health(Status.UP, Collections.singletonMap("a", "b"));
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Health h3 = new Health(Status.UP, null);
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assertThat(h1, equalTo(h1));
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assertThat(h1, equalTo(h2));
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assertThat(h1, not(equalTo(h3)));
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assertThat(h1.hashCode(), equalTo(h1.hashCode()));
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assertThat(h1.hashCode(), equalTo(h2.hashCode()));
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assertThat(h1.hashCode(), not(equalTo(h3.hashCode())));
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}
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@Test
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public void withException() throws Exception {
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RuntimeException ex = new RuntimeException("bang");
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Health health = new Health(Status.UP, Collections.singletonMap("a", "b"))
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.withException(ex);
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assertThat(health.getDetails().get("a"), equalTo((Object) "b"));
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assertThat(health.getDetails().get("error"),
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equalTo((Object) "java.lang.RuntimeException: bang"));
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}
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@Test
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public void withDetails() throws Exception {
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Health health = new Health(Status.UP, Collections.singletonMap("a", "b"))
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.withDetail("c", "d");
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assertThat(health.getDetails().get("a"), equalTo((Object) "b"));
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assertThat(health.getDetails().get("c"), equalTo((Object) "d"));
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}
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@Test
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public void unknownWithDetails() throws Exception {
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Health health = Health.unknown().withDetail("a", "b");
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assertThat(health.getStatus(), equalTo(Status.UNKNOWN));
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assertThat(health.getDetails().get("a"), equalTo((Object) "b"));
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}
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@Test
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public void unknown() throws Exception {
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Health health = Health.unknown();
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assertThat(health.getStatus(), equalTo(Status.UNKNOWN));
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assertThat(health.getDetails().size(), equalTo(0));
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}
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@Test
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public void upWithDetails() throws Exception {
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Health health = Health.up().withDetail("a", "b");
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assertThat(health.getStatus(), equalTo(Status.UP));
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assertThat(health.getDetails().get("a"), equalTo((Object) "b"));
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}
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@Test
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public void up() throws Exception {
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Health health = Health.up();
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assertThat(health.getStatus(), equalTo(Status.UP));
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assertThat(health.getDetails().size(), equalTo(0));
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}
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@Test
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public void downWithException() throws Exception {
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RuntimeException ex = new RuntimeException("bang");
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Health health = Health.down(ex);
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assertThat(health.getStatus(), equalTo(Status.DOWN));
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assertThat(health.getDetails().get("error"),
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equalTo((Object) "java.lang.RuntimeException: bang"));
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}
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@Test
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public void down() throws Exception {
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Health health = Health.down();
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assertThat(health.getStatus(), equalTo(Status.DOWN));
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assertThat(health.getDetails().size(), equalTo(0));
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}
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@Test
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public void outOfService() throws Exception {
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Health health = Health.outOfService();
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assertThat(health.getStatus(), equalTo(Status.OUT_OF_SERVICE));
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assertThat(health.getDetails().size(), equalTo(0));
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}
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@Test
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public void statusCode() throws Exception {
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Health health = Health.status("UP");
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assertThat(health.getStatus(), equalTo(Status.UP));
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assertThat(health.getDetails().size(), equalTo(0));
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}
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@Test
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public void status() throws Exception {
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Health health = Health.status(Status.UP);
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assertThat(health.getStatus(), equalTo(Status.UP));
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assertThat(health.getDetails().size(), equalTo(0));
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}
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}
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