Refactor ArchUnit tests

Author: pivovarit

src/test/java/com/pivovarit/function/ArchitectureTest.java

@@ -1,44 +1,32 @@
 package com.pivovarit.function;
 
-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.junit.AnalyzeClasses;
+import com.tngtech.archunit.junit.ArchTest;
 import com.tngtech.archunit.lang.ArchRule;
-import org.junit.jupiter.api.Test;
 
 import static com.tngtech.archunit.lang.syntax.ArchRuleDefinition.classes;
 
+@AnalyzeClasses(packages = "com.pivovarit", importOptions = ImportOption.DoNotIncludeTests.class)
 class ArchitectureTest {
 
-    private static final ArchRule SINGLE_PACKAGE_RULE = classes()
-      .should().resideInAPackage("com.pivovarit.function");
+    private static final String COM_PIVOVARIT_FUNCTION = "com.pivovarit.function";
 
-    private static final ArchRule PUBLIC_INTERFACES = classes()
+    @ArchTest
+    static final ArchRule shouldHaveSinglePackage = classes()
+      .should().resideInAPackage(COM_PIVOVARIT_FUNCTION);
+
+    @ArchTest
+    static final ArchRule shouldHaveOnlyPublicInterfaces = classes()
       .that().arePublic().and().areInterfaces()
       .should().beInterfaces()
       .andShould().haveSimpleNameStartingWith("Throwing");
 
-    private static final ArchRule ZERO_DEPS_RULE = classes()
-      .that().resideInAPackage("com.pivovarit.function")
+    @ArchTest
+    static final ArchRule shouldHaveZeroDependencies = classes()
+      .that().resideInAPackage(COM_PIVOVARIT_FUNCTION)
       .should()
       .dependOnClassesThat().resideInAPackage("java..")
       .as("the library should depend only on core Java classes")
       .because("users appreciate not experiencing a dependency hell");
-
-    private static final JavaClasses classes = new ClassFileImporter()
-      .importPackages("com.pivovarit");
-
-    @Test
-    void shouldHavePublicInterfacesWithCorrectNamingPattern() {
-        PUBLIC_INTERFACES.check(classes);
-    }
-
-    @Test
-    void shouldHaveZeroDependencies() {
-        ZERO_DEPS_RULE.check(classes);
-    }
-
-    @Test
-    void shouldHaveSinglePackage() {
-        SINGLE_PACKAGE_RULE.check(classes);
-    }
 }