Refactor test: remove micrometer mocking, micrometer is testable (#32)

src/test/java/io/kokuwa/keycloak/metrics/junit/AbstractMockitoTest.java

@@ -0,0 +1,29 @@
+package io.kokuwa.keycloak.metrics.junit;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.ClassOrderer;
+import org.junit.jupiter.api.MethodOrderer;
+import org.junit.jupiter.api.TestClassOrder;
+import org.junit.jupiter.api.TestMethodOrder;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import io.micrometer.core.instrument.Metrics;
+import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
+
+/**
+ * Mockito base class with configured logging.
+ *
+ * @author Stephan Schnabel
+ */
+@ExtendWith(MockitoExtension.class)
+@TestClassOrder(ClassOrderer.DisplayName.class)
+@TestMethodOrder(MethodOrderer.DisplayName.class)
+public abstract class AbstractMockitoTest {
+
+	@BeforeEach
+	void reset() {
+		Metrics.globalRegistry.clear();
+		Metrics.addRegistry(new SimpleMeterRegistry());
+	}
+}