How to use MockTestcontainersConfigurationRule method of org.testcontainers.dockerclient.EnvironmentAndSystemPropertyClientProviderStrategyTest class

Best Testcontainers-java code snippet using org.testcontainers.dockerclient.EnvironmentAndSystemPropertyClientProviderStrategyTest.MockTestcontainersConfigurationRule

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...7import org.junit.Test;8import org.junit.runner.RunWith;9import org.mockito.Mockito;10import org.mockito.junit.MockitoJUnitRunner;11import org.testcontainers.utility.MockTestcontainersConfigurationRule;12import org.testcontainers.utility.TestcontainersConfiguration;13import java.io.IOException;14import java.net.URI;15import java.nio.file.Files;16import java.nio.file.Path;17import java.util.Collections;18import java.util.HashMap;19import java.util.Map;20import static org.junit.Assert.assertEquals;21import static org.junit.Assert.assertFalse;22import static org.junit.Assert.assertNotNull;23import static org.junit.Assert.assertTrue;24import static org.mockito.ArgumentMatchers.any;25import static org.mockito.ArgumentMatchers.anyString;26import static org.mockito.ArgumentMatchers.eq;27import static org.mockito.ArgumentMatchers.isNull;28/​**29 * Test that we can use Testcontainers configuration file to override settings. We assume that docker-java has test30 * coverage for detection of environment variables (e.g. DOCKER_HOST) and its own properties config file.31 */​32@RunWith(MockitoJUnitRunner.class)33public class EnvironmentAndSystemPropertyClientProviderStrategyTest {34 @Rule35 public MockTestcontainersConfigurationRule mockConfig = new MockTestcontainersConfigurationRule();36 private URI defaultDockerHost;37 private com.github.dockerjava.core.SSLConfig defaultSSLConfig;38 @Before39 public void checkEnvironmentClear() {40 /​/​ If docker-java picks up non-default settings from the environment, our test needs to know to expect those41 DefaultDockerClientConfig defaultConfig = DefaultDockerClientConfig.createDefaultConfigBuilder().build();42 defaultDockerHost = defaultConfig.getDockerHost();43 defaultSSLConfig = defaultConfig.getSSLConfig();44 }45 @Test46 public void testWhenConfigAbsent() {47 Mockito.doReturn("auto").when(TestcontainersConfiguration.getInstance()).getEnvVarOrProperty(eq("dockerconfig.source"), anyString());48 Mockito.doReturn(null).when(TestcontainersConfiguration.getInstance()).getEnvVarOrUserProperty(eq("docker.host"), isNull());49 Mockito.doReturn(null).when(TestcontainersConfiguration.getInstance()).getEnvVarOrUserProperty(eq("docker.tls.verify"), isNull());...

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MockTestcontainersConfigurationRule

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1 public void testMockTestcontainersConfigurationRule() {2 MockTestcontainersConfigurationRule mockTestcontainersConfigurationRule = new MockTestcontainersConfigurationRule();3 mockTestcontainersConfigurationRule.init();4 String dockerHost = System.getenv("DOCKER_HOST");5 mockTestcontainersConfigurationRule.close();6 }7}

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MockTestcontainersConfigurationRule

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1new MockTestcontainersConfigurationRule();2public void getDockerHostIpAddressWithoutDockerHost() {3new EnvironmentAndSystemPropertyClientProviderStrategy();4String dockerHostIpAddress = environmentAndSystemPropertyClientProviderStrategy.getDockerHostIpAddress();5assertThat(dockerHostIpAddress, is("localhost"));6}7The problem is that the method getDockerHostIpAddress() uses the class DockerClientConfigUtils which uses the class DockerMachineClientProviderStrategy . Therefore, I need to mock the class DockerMachineClientProviderStrategy . I am using the following code to mock the class8public class MockDockerMachineClientProviderStrategy extends DockerMachineClientProviderStrategy {9public DockerClientConfig provide() {10return null;11}12}13public void getDockerHostIpAddressWithoutDockerHost() {14new MockDockerMachineClientProviderStrategy();15new EnvironmentAndSystemPropertyClientProviderStrategy(mockDockerMachineClientProviderStrategy);16String dockerHostIpAddress = environmentAndSystemPropertyClientProviderStrategy.getDockerHostIpAddress();17assertThat(dockerHostIpAddress, is("localhost"));18}19at org.testcontainers.dockerclient.EnvironmentAndSystemPropertyClientProviderStrategy.getFirstValidStrategy(EnvironmentAndSystemPropertyClientProviderStrategy.java:105)20at org.testcontainers.dockerclient.EnvironmentAndSystemPropertyClientProviderStrategy.getDockerHostIpAddress(EnvironmentAndSystemPropertyClientProviderStrategy.java:145)21at org.testcontainers.dockerclient.EnvironmentAndSystemPropertyClientProviderStrategyTest.getDockerHostIpAddressWithoutDockerHost(EnvironmentAndSystemPropertyClientProviderStrategyTest.java:37)22at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

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MockTestcontainersConfigurationRule

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1public class TestClass {2 private final String value;3 public TestClass(String value) {4 this.value = value;5 }6 public String getValue() {7 return value;8 }9}10public class TestClassTest {11 private TestClass testClass;12 public void init() {13 testClass = new TestClass("test");14 }15 public void getValueTest() {16 assertEquals("test", testClass.getValue());17 }18}19Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testClass': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private final java.lang.String TestClass.value; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mock(TestClass)': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private final java.lang.String TestClass.value; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mock(TestClass)': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private final java.lang.String TestClass.value; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mock(TestClass)': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private final java.lang.String TestClass.value; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mock(TestClass)': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private final java.lang.String TestClass.value; nested

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