优化

lastleg-service/src/test/java/com/baiyue/lastleg/MapperRegistrationArchitectureTest.java

@@ -0,0 +1,30 @@
+package com.baiyue.lastleg;
+
+import com.tngtech.archunit.core.domain.JavaClasses;
+import com.tngtech.archunit.core.importer.ClassFileImporter;
+import org.apache.ibatis.annotations.Mapper;
+import org.junit.jupiter.api.Test;
+import org.mybatis.spring.annotation.MapperScan;
+
+import static com.tngtech.archunit.lang.syntax.ArchRuleDefinition.classes;
+import static org.assertj.core.api.Assertions.assertThat;
+
+class MapperRegistrationArchitectureTest {
+    private static final JavaClasses PRODUCTION_CLASSES = new ClassFileImporter()
+        .importPackages("com.baiyue.lastleg");
+
+    @Test
+    void everyMapperInterfaceDeclaresItsRegistrationMarker() {
+        classes().that().areInterfaces().and().haveSimpleNameEndingWith("Mapper")
+            .should().beAnnotatedWith(Mapper.class)
+            .because("Mapper registration must fail during tests instead of service startup")
+            .check(PRODUCTION_CLASSES);
+    }
+
+    @Test
+    void applicationUsesOneAnnotationFilteredRootScan() {
+        MapperScan scan = BaiyueLastlegApplication.class.getAnnotation(MapperScan.class);
+        assertThat(scan.basePackages()).containsExactly("com.baiyue.lastleg");
+        assertThat(scan.annotationClass()).isEqualTo(Mapper.class);
+    }
+}