Add base test for StepRegistryPropertiesConfigAdapter

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/properties/StepRegistryPropertiesConfigAdapterTests.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright 2012-2018 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
+ *
+ *      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.springframework.boot.actuate.autoconfigure.metrics.export.properties;
+
+import java.time.Duration;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Base test for {@link StepRegistryPropertiesConfigAdapter} implementations.
+ *
+ * @author Stephane Nicoll
+ */
+public abstract class StepRegistryPropertiesConfigAdapterTests<P extends StepRegistryProperties, A extends StepRegistryPropertiesConfigAdapter<P>> {
+
+	protected abstract P createProperties();
+
+	protected abstract A createConfigAdapter(P properties);
+
+	@Test
+	public void whenPropertiesStepIsSetAdapterStepReturnsIt() {
+		P properties = createProperties();
+		properties.setStep(Duration.ofSeconds(42));
+		assertThat(createConfigAdapter(properties).step())
+				.isEqualTo(Duration.ofSeconds(42));
+	}
+
+	@Test
+	public void whenPropertiesEnabledIsSetAdapterEnabledReturnsIt() {
+		P properties = createProperties();
+		properties.setEnabled(false);
+		assertThat(createConfigAdapter(properties).enabled()).isFalse();
+	}
+
+	@Test
+	public void whenPropertiesConnectTimeoutIsSetAdapterConnectTimeoutReturnsIt() {
+		P properties = createProperties();
+		properties.setConnectTimeout(Duration.ofMinutes(42));
+		assertThat(createConfigAdapter(properties).connectTimeout())
+				.isEqualTo(Duration.ofMinutes(42));
+	}
+
+	@Test
+	public void whenPropertiesReadTimeoutIsSetAdapterReadTimeoutReturnsIt() {
+		P properties = createProperties();
+		properties.setReadTimeout(Duration.ofMillis(42));
+		assertThat(createConfigAdapter(properties).readTimeout())
+				.isEqualTo(Duration.ofMillis(42));
+	}
+
+	@Test
+	public void whenPropertiesNumThreadsIsSetAdapterNumThreadsReturnsIt() {
+		P properties = createProperties();
+		properties.setNumThreads(42);
+		assertThat(createConfigAdapter(properties).numThreads()).isEqualTo(42);
+	}
+
+	@Test
+	public void whenPropertiesBatchSizeIsSetAdapterBatchSizeReturnsIt() {
+		P properties = createProperties();
+		properties.setBatchSize(10042);
+		assertThat(createConfigAdapter(properties).batchSize()).isEqualTo(10042);
+	}
+
+}