src/test/java/com/dalab/discovery/common/TechnicalStructureTest.java

package com.dalab.discovery.common;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.Timeout;

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.lang.ArchRule;
import com.tngtech.archunit.lang.syntax.ArchRuleDefinition;

public class TechnicalStructureTest {

        private static final String BASE_PACKAGE = "com.dalab.discovery";

        @Test
        @Timeout(60)
        public void respectsTechnicalArchitectureLayers() {
                JavaClasses importedClasses = new ClassFileImporter()
                                .withImportOption(ImportOption.Predefined.DO_NOT_INCLUDE_TESTS)
                                .withImportOption(ImportOption.Predefined.DO_NOT_INCLUDE_ARCHIVES)
                                .importPackages(BASE_PACKAGE);

                // Basic rule - all web controllers should only depend on interfaces, not
                // implementations
                ArchRule controllerRule = ArchRuleDefinition.classes()
                                .that().haveNameMatching(".*Controller")
                                .should().onlyDependOnClassesThat()
                                .haveNameNotMatching(".*Impl");

                controllerRule.check(importedClasses);
        }
}