[BAEL-4381] Intro to ArchUnit

2020-07-28 10:26:00 -03:00
parent b8116f2b38
commit f1359b620f
9 changed files with 349 additions and 3 deletions
--- a/libraries-testing/src/test/java/com/baeldung/archunit/smurfs/SmurfsArchUnitTest.java
+++ b/libraries-testing/src/test/java/com/baeldung/archunit/smurfs/SmurfsArchUnitTest.java
@@ -0,0 +1,92 @@
+/**
+ * 
+ */
+package com.baeldung.archunit.smurfs;
+
+
+import com.tngtech.archunit.core.domain.JavaClasses;
+import com.tngtech.archunit.core.importer.ClassFileImporter;
+import com.tngtech.archunit.lang.ArchRule;
+import com.tngtech.archunit.library.Architectures.LayeredArchitecture;
+
+import static com.tngtech.archunit.lang.syntax.ArchRuleDefinition.classes;
+import static com.tngtech.archunit.lang.syntax.ArchRuleDefinition.noClasses;
+import static com.tngtech.archunit.library.Architectures.layeredArchitecture;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * @author Philippe
+ *
+ */
+public class SmurfsArchUnitTest {
+    
+    @Test
+    public void givenPresentationLayerClasses_thenWrongCheckFails() {        
+        JavaClasses jc = new ClassFileImporter().importPackages("com.baldung.archunit.smurfs");
+        
+        ArchRule r1 = classes()
+          .that()
+            .resideInAPackage("..presentation..")
+          .should()
+            .onlyDependOnClassesThat()
+              .resideInAPackage("..service..");
+    
+        assertThrows(AssertionError.class, ()-> r1.check(jc)) ;
+    }
+    
+
+    @Test
+    public void givenPresentationLayerClasses_thenCheckWithFrameworkDependenciesSuccess() {        
+        JavaClasses jc = new ClassFileImporter().importPackages("com.baldung.archunit.smurfs");
+        
+        ArchRule r1 = classes()
+          .that()
+            .resideInAPackage("..presentation..")
+          .should()
+            .onlyDependOnClassesThat()
+              .resideInAnyPackage("..service..", "java..", "javax..", "org.springframework..");
+
+        r1.check(jc);
+    }
+
+    @Test
+    public void givenPresentationLayerClasses_thenNoPersistenceLayerAccess() {        
+        JavaClasses jc = new ClassFileImporter().importPackages("com.baldung.archunit.smurfs");
+        
+        ArchRule r1 = noClasses()
+          .that()
+            .resideInAPackage("..presentation..")
+          .should()
+            .dependOnClassesThat()
+              .resideInAPackage("..persistence..");
+          
+        
+        r1.check(jc);
+    }
+    
+    @Test
+    public void givenApplicationClasses_thenNoLayerViolationsShouldExist() {
+        
+        JavaClasses jc = new ClassFileImporter().importPackages("com.baldung.archunit.smurfs");
+        
+        LayeredArchitecture arch = layeredArchitecture()
+           // Define layers
+          .layer("Presentation").definedBy("..presentation..")
+          .layer("Service").definedBy("..service..")
+          .layer("Persistence").definedBy("..persistence..")
+          // Add constraints
+          .whereLayer("Presentation").mayNotBeAccessedByAnyLayer()
+          .whereLayer("Service").mayOnlyBeAccessedByLayers("Presentation")
+          .whereLayer("Persistence").mayOnlyBeAccessedByLayers("Service");
+          
+        
+        arch.check(jc);
+        
+    }
+    
+    
+
+}