add archunit tests

web/src/integrationTest/java/de/cotto/lndmanagej/controller/ArchUnitIT.java

@@ -0,0 +1,49 @@
+package de.cotto.lndmanagej.controller;
+
+import com.codahale.metrics.annotation.Timed;
+import com.tngtech.archunit.core.domain.JavaClasses;
+import com.tngtech.archunit.core.importer.ClassFileImporter;
+import com.tngtech.archunit.core.importer.ImportOption;
+import com.tngtech.archunit.core.importer.Location;
+import com.tngtech.archunit.lang.ArchRule;
+import com.tngtech.archunit.lang.syntax.ArchRuleDefinition;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import java.util.regex.Pattern;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class ArchUnitIT {
+
+    private static JavaClasses importedClasses;
+
+    @BeforeAll
+    static void setUp() {
+        importedClasses = new ClassFileImporter()
+                .withImportOption(new DoNotIncludeTests())
+                .importPackages("de.cotto.lndmanagej.controller");
+    }
+
+    @Test
+    void public_controller_methods_are_timed() {
+        ArchRule rule = ArchRuleDefinition.methods().that()
+                .areDeclaredInClassesThat().areAnnotatedWith(RequestMapping.class)
+                .and()
+                .arePublic()
+                .should()
+                .beAnnotatedWith(Timed.class);
+        assertThat(importedClasses).isNotEmpty();
+        rule.check(importedClasses);
+    }
+
+    private static class DoNotIncludeTests implements ImportOption {
+        private static final Pattern GRADLE_PATTERN = Pattern.compile(".*/build/classes/([^/]+/)?[a-zA-Z-]*[tT]est/.*");
+
+        @Override
+        public boolean includes(Location location) {
+            return !location.matches(GRADLE_PATTERN);
+        }
+    }
+}