use AnnotationFinder to determine alias name from @Produces

src/main/java/net/hostsharing/hsadminng/reflection/AnnotationFinder.java

@@ -0,0 +1,47 @@
+package net.hostsharing.hsadminng.reflection;
+
+import lombok.experimental.UtilityClass;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+import java.util.Optional;
+
+import static java.util.Optional.empty;
+
+@UtilityClass
+public class AnnotationFinder {
+
+    public static <T extends Annotation> Optional<T> findCallerAnnotation(
+            final Class<T> annotationClassToFind,
+            final Class<? extends Annotation> annotationClassToStopLookup
+    ) {
+        for (var element : Thread.currentThread().getStackTrace()) {
+            try {
+                final var clazz = Class.forName(element.getClassName());
+                final var method = getMethodFromStackElement(clazz, element);
+
+                // Check if the method is annotated with the desired annotation
+                if (method != null) {
+                    if (method.isAnnotationPresent(annotationClassToFind)) {
+                        return Optional.of(method.getAnnotation(annotationClassToFind));
+                    } else if (method.isAnnotationPresent(annotationClassToStopLookup)) {
+                        return empty();
+                    }
+                }
+            } catch (final ClassNotFoundException | NoSuchMethodException e) {
+                throw new RuntimeException(e); // FIXME: when does this happen?
+            }
+        }
+        return empty();
+    }
+
+    private static Method getMethodFromStackElement(Class<?> clazz, StackTraceElement element)
+            throws NoSuchMethodException {
+        for (var method : clazz.getDeclaredMethods()) {
+            if (method.getName().equals(element.getMethodName())) {
+                return method;
+            }
+        }
+        return null;
+    }
+}

src/test/java/net/hostsharing/hsadminng/hs/office/usecases/HsOfficeUseCasesTest.java

@@ -3,6 +3,9 @@ package net.hostsharing.hsadminng.hs.office.usecases;
 import net.hostsharing.hsadminng.HsadminNgApplication;
 import net.hostsharing.hsadminng.hs.office.usecases.debitor.CreateExternalDebitorForPartner;
 import net.hostsharing.hsadminng.hs.office.usecases.debitor.CreateSelfDebitorForPartner;
+import net.hostsharing.hsadminng.hs.office.usecases.debitor.CreateSepaMandataForDebitor;
+import net.hostsharing.hsadminng.hs.office.usecases.debitor.DeleteSepaMandataForDebitor;
+import net.hostsharing.hsadminng.hs.office.usecases.debitor.InvalidateSepaMandateForDebitor;
 import net.hostsharing.hsadminng.hs.office.usecases.membership.CreateMembership;
 import net.hostsharing.hsadminng.hs.office.usecases.partner.CreatePartner;
 import net.hostsharing.hsadminng.hs.office.usecases.debitor.DeleteDebitor;
@@ -27,7 +30,7 @@ class HsOfficeUseCasesTest extends UseCaseTest {
     @Order(1010)
     @Produces(explicitly = "Partner: Test AG", implicitly = "Person: Test AG")
     void shouldCreatePartner() {
-        new CreatePartner(this, "Partner: Test AG")
+        new CreatePartner(this)
                 .given("partnerNumber", 31010)
                 .given("personType", "LEGAL_PERSON")
                 .given("tradeName", "Test AG")
@@ -48,6 +51,7 @@ class HsOfficeUseCasesTest extends UseCaseTest {
     @Test
     @Order(2010)
     @Requires("Partner: Test AG")
+    @Produces("Debitor: Test AG - main debitor")
     void shouldCreateSelfDebitorForPartner() {
         new CreateSelfDebitorForPartner(this, "Debitor: Test AG - main debitor")
                 .given("partnerPersonUuid", "%{Person: Test AG}")
@@ -69,7 +73,7 @@ class HsOfficeUseCasesTest extends UseCaseTest {
     @Requires("Person: Test AG")
     @Produces("Debitor: Billing GmbH")
     void shouldCreateExternalDebitorForPartner() {
-        new CreateExternalDebitorForPartner(this, "Debitor: Billing GmbH")
+        new CreateExternalDebitorForPartner(this)
                 .given("partnerPersonUuid", "%{Person: Test AG}")
                 .given("billingContactCaption", "Billing GmbH - billing department")
                 .given("billingContactEmailAddress", "billing@test-ag.example.org")
@@ -94,6 +98,39 @@ class HsOfficeUseCasesTest extends UseCaseTest {
                 .doRun();
     }
 
+    @Test
+    @Order(3100)
+    @Requires("Debitor: Test AG - main debitor")
+    @Produces("SEPA-Mandate: Test AG")
+    void shouldCreateSepaMandateForDebitor() {
+        new CreateSepaMandataForDebitor(this)
+                .given("debitor", "Test AG")
+                .given("memberNumberSuffix", "00")
+                .given("validFrom", "2024-10-15")
+                .given("membershipFeeBillable", "true")
+                .doRun()
+                .keep();
+    }
+
+    @Test
+    @Order(3108)
+    @Requires("SEPA-Mandate: Test AG")
+    void shouldInvalidateSepaMandateForDebitor() {
+        new InvalidateSepaMandateForDebitor(this)
+                .given("sepaMandateUuid", "%{SEPA-Mandate: Test AG}")
+                .given("validUntil", "2025-09-30")
+                .doRun();
+    }
+
+    @Test
+    @Order(3109)
+    @Requires("SEPA-Mandate: Test AG")
+    void shouldDeleteSepaMandateForDebitor() {
+        new DeleteSepaMandataForDebitor(this)
+                .given("sepaMandateUuid", "%{SEPA-Mandate: Test AG}")
+                .doRun();
+    }
+
     @Test
     @Order(3000)
     @Requires("Partner: Test AG")

src/test/java/net/hostsharing/hsadminng/hs/office/usecases/UseCase.java

@@ -4,7 +4,11 @@ import io.restassured.RestAssured;
 import io.restassured.http.ContentType;
 import io.restassured.response.Response;
 import io.restassured.response.ValidatableResponse;
+import net.hostsharing.hsadminng.reflection.AnnotationFinder;
 import org.apache.commons.collections4.map.LinkedMap;
+import org.hibernate.AssertionFailure;
+import org.jetbrains.annotations.Nullable;
+import org.junit.jupiter.api.Test;
 import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
 
@@ -14,7 +18,10 @@ import java.util.UUID;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.hamcrest.Matchers.startsWith;
+import static org.junit.platform.commons.util.StringUtils.isBlank;
+import static org.junit.platform.commons.util.StringUtils.isNotBlank;
 
 public abstract class UseCase<T extends UseCase<?>> {
 
@@ -25,7 +32,7 @@ public abstract class UseCase<T extends UseCase<?>> {
     private String nextTitle; // FIXME: ugly
 
     public UseCase(final UseCaseTest testSuite) {
-        this(testSuite, null);
+        this(testSuite, getResultAliasFromProducesAnnotationInCallStack());
     }
 
     public UseCase(final UseCaseTest testSuite, final String resultAlias) {
@@ -87,6 +94,18 @@ public abstract class UseCase<T extends UseCase<?>> {
         return new HttpResponse(HttpMethod.POST, uriPath, body, response);
     }
 
+    public final HttpResponse httpPatch(final String uriPath, final JsonTemplate bodyJsonTemplate) {
+        final var body = bodyJsonTemplate.resolvePlaceholders();
+        final var uri = "http://localhost" + uriPath;
+        final var response = RestAssured.given()
+                .header("current-subject", UseCaseTest.RUN_AS_USER)
+                .contentType(ContentType.JSON)
+                .body(body)
+                .port(testSuite.port)
+                .when().patch(uri);
+        return new HttpResponse(HttpMethod.PATCH, uriPath, body, response);
+    }
+
     public final HttpResponse httpDelete(final String uriPath) {
         final var response = RestAssured.given()
                 .header("current-subject", UseCaseTest.RUN_AS_USER)
@@ -99,7 +118,7 @@ public abstract class UseCase<T extends UseCase<?>> {
         return UseCaseTest.getAlias(alias).uuid();
     }
 
-    static class JsonTemplate {
+    public static class JsonTemplate {
 
         private final String template;
 
@@ -160,8 +179,10 @@ public abstract class UseCase<T extends UseCase<?>> {
         }
 
         public void keep() {
+            final var alias = nextTitle != null ? nextTitle : resultAlias;
+            assertThat(alias).as("cannot keep result, no alias found").isNotNull();
             UseCaseTest.putAlias(
-                    nextTitle != null ? nextTitle : resultAlias,
+                    alias,
                     new UseCaseTest.Alias<>(UseCase.this.getClass(), locationUuid));
         }
     }
@@ -174,4 +195,19 @@ public abstract class UseCase<T extends UseCase<?>> {
         //noinspection unchecked
         return (T) this;
     }
+
+    private static @Nullable String getResultAliasFromProducesAnnotationInCallStack() {
+        return AnnotationFinder.findCallerAnnotation(Produces.class, Test.class)
+                .map(produces -> oneOf(produces.value(), produces.explicitly()))
+                .orElse(null);
+    }
+
+    private static String oneOf(final String one, final String another) {
+        if (isNotBlank(one) && isBlank(another)) {
+            return one;
+        } else if ( isBlank(one) && isNotBlank(another)) {
+            return another;
+        }
+        throw new AssertionFailure("exactly one value required, but got '" + one + "' and '" + another + "'");
+    }
 }

src/test/java/net/hostsharing/hsadminng/hs/office/usecases/UseCaseTest.java

@@ -8,7 +8,6 @@ import net.hostsharing.hsadminng.lambda.Reducer;
 import net.hostsharing.hsadminng.rbac.context.ContextBasedTest;
 import net.hostsharing.hsadminng.rbac.test.JpaAttempt;
 import org.apache.commons.collections4.SetUtils;
-import org.hibernate.AssertionFailure;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Order;
@@ -19,12 +18,12 @@ import org.springframework.boot.test.web.server.LocalServerPort;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Set;
 import java.util.UUID;
 import java.util.stream.Collectors;
@@ -35,9 +34,10 @@ import static org.assertj.core.api.Assertions.assertThat;
 public abstract class UseCaseTest extends ContextBasedTest {
 
     final static String RUN_AS_USER = "superuser-alex@hostsharing.net"; // TODO.test: use global:AGENT when implemented
+    //String producesAlias;
 
-//    @Getter
-//    public static TestInfo currentTestInfo;
+    //    @Getter
+    //    public static TestInfo currentTestInfo;
 
     @Getter
     private PrintWriter markdownFile;
@@ -60,7 +60,7 @@ public abstract class UseCaseTest extends ContextBasedTest {
     @BeforeEach
     void init(final TestInfo testInfo) {
         createHostsharingPerson();
-        callRequiredProducers(testInfo);
+        testInfo.getTestMethod().ifPresent(this::callRequiredProducers);
         createTestLogMarkdownFile(testInfo);
     }
 
@@ -98,40 +98,41 @@ public abstract class UseCaseTest extends ContextBasedTest {
     private void createTestLogMarkdownFile(final TestInfo testInfo) throws IOException {
         final var testMethodName = testInfo.getTestMethod().map(Method::getName).orElseThrow();
         final var testMethodOrder = testInfo.getTestMethod().map(m -> m.getAnnotation(Order.class).value()).orElseThrow();
-        markdownFile = new PrintWriter(new FileWriter( testMethodOrder + "-" + testMethodName + ".md"));
+        markdownFile = new PrintWriter(new FileWriter(testMethodOrder + "-" + testMethodName + ".md"));
         log("## Testcase " + testMethodName.replaceAll("([a-z])([A-Z]+)", "$1 $2"));
     }
 
-    private void callRequiredProducers(final TestInfo testInfo) throws IllegalAccessException, InvocationTargetException {
-        final var testMethodRequired =  testInfo.getTestMethod()
+    @SneakyThrows
+    private void callRequiredProducers(final Method currentTestMethod) {
+        final var testMethodRequired = Optional.of(currentTestMethod)
                 .map(m -> m.getAnnotation(Requires.class))
                 .map(Requires::value)
                 .orElse(null);
         if (testMethodRequired != null) {
-            for (Method testMethod : getClass().getDeclaredMethods()) {
-                final var producesAnnot = testMethod.getAnnotation(Produces.class);
+            for (Method potentialProducerMethod : getClass().getDeclaredMethods()) {
+                final var producesAnnot = potentialProducerMethod.getAnnotation(Produces.class);
                 if (producesAnnot != null) {
-                    final var testMethodProduces = allOf(producesAnnot.value(), producesAnnot.explicitly(), producesAnnot.implicitly());
+                    final var testMethodProduces = allOf(
+                            producesAnnot.value(),
+                            producesAnnot.explicitly(),
+                            producesAnnot.implicitly());
+                    //  @formatter:off
                     if ( // that method can produce something required
                          testMethodProduces.contains(testMethodRequired) &&
 
                          // and it does not produce anything we already have (would cause errors)
-                         SetUtils.intersection(testMethodProduces, knowVariables().keySet()).isEmpty())
+                         SetUtils.intersection(testMethodProduces, knowVariables().keySet()).isEmpty()
+                    ) {
+                        // then we recursively produce the pre-requisites of the producer method
+                        callRequiredProducers(potentialProducerMethod);
 
-                        // then we call the producer method
-                        testMethod.invoke(this);
+                        // and finally we call the producer method
+                        potentialProducerMethod.invoke(this);
+                    }
+                    // @formatter:on
                 }
             }
         }
-
-
-
-//        public void requires(final String alias) {
-//            assumeThat(UseCaseTest.containsAlias(alias))
-//                    .as("skipping because alias '" + alias + "' not found, @Produces(...) missing?")
-//                    .isTrue();
-//            log("depends on [" + alias + "](" + UseCaseTest.getAlias(alias).useCase().getSimpleName() + ".md)");
-//        }
     }
 
     private Set<String> allOf(final String value, final String explicitly, final String[] implicitly) {
@@ -146,15 +147,6 @@ public abstract class UseCaseTest extends ContextBasedTest {
         return all;
     }
 
-    private String oneOf(final String one, final String another) {
-        if (one != null && another == null) {
-            return one;
-        } else if (one == null && another != null) {
-            return another;
-        }
-        throw new AssertionFailure("excactly one value required");
-    }
-
     static boolean containsAlias(final String alias) {
         return aliases.containsKey(alias);
     }
@@ -175,10 +167,6 @@ public abstract class UseCaseTest extends ContextBasedTest {
         properties.put(name, (value instanceof String string) ? resolve(string) : value);
     }
 
-    static LinkedHashMap<String, Object> properties() {
-        return new LinkedHashMap<>(properties);
-    }
-
     static Map<String, Object> knowVariables() {
         final var map = new LinkedHashMap<String, Object>();
         UseCaseTest.aliases.forEach((key, value) -> map.put(key, value.uuid()));

src/test/java/net/hostsharing/hsadminng/hs/office/usecases/debitor/CreateExternalDebitorForPartner.java

@@ -9,8 +9,8 @@ import static org.springframework.http.HttpStatus.CREATED;
 
 public class CreateExternalDebitorForPartner extends UseCase<CreateExternalDebitorForPartner> {
 
-    public CreateExternalDebitorForPartner(final UseCaseTest testSuite, final String resultAlias) {
-        super(testSuite, resultAlias);
+    public CreateExternalDebitorForPartner(final UseCaseTest testSuite) {
+        super(testSuite);
 
         requires("Person: Billing GmbH", alias -> new CreatePerson(testSuite, alias)
                 .given("personType", "LEGAL_PERSON")

src/test/java/net/hostsharing/hsadminng/hs/office/usecases/debitor/CreateSepaMandataForDebitor.java

@@ -0,0 +1,39 @@
+package net.hostsharing.hsadminng.hs.office.usecases.debitor;
+
+import net.hostsharing.hsadminng.hs.office.usecases.UseCase;
+import net.hostsharing.hsadminng.hs.office.usecases.UseCaseTest;
+
+import static io.restassured.http.ContentType.JSON;
+import static org.springframework.http.HttpStatus.CREATED;
+
+public class CreateSepaMandataForDebitor extends UseCase<CreateSepaMandataForDebitor> {
+
+    public CreateSepaMandataForDebitor(final UseCaseTest testSuite) {
+        super(testSuite);
+    }
+
+    @Override
+    protected HttpResponse run() {
+        keep("BankAccount: Test AG - debit bank account", () ->
+                httpPost("/api/hs/office/bankaccounts", usingJsonBody("""
+                         {
+                             "holder": "Test AG - debit bank account",
+                             "iban": "DE02701500000000594937",
+                             "bic": "SSKMDEMM"
+                        }
+                        """))
+                        .expecting(CREATED).expecting(JSON)
+        );
+
+        return httpPost("/api/hs/office/sepamandates", usingJsonBody("""
+                {
+                   "debitorUuid": ${Debitor: Test AG - main debitor},
+                   "bankAccountUuid": ${BankAccount: Test AG - debit bank account},
+                   "reference": "Test AG - main debitor",
+                   "agreement": "2022-10-12",
+                   "validFrom": "2022-10-13"
+                }
+                """))
+                .expecting(CREATED).expecting(JSON);
+    }
+}

src/test/java/net/hostsharing/hsadminng/hs/office/usecases/debitor/DeleteSepaMandataForDebitor.java

@@ -0,0 +1,20 @@
+package net.hostsharing.hsadminng.hs.office.usecases.debitor;
+
+import net.hostsharing.hsadminng.hs.office.usecases.UseCase;
+import net.hostsharing.hsadminng.hs.office.usecases.UseCaseTest;
+import org.springframework.http.HttpStatus;
+
+
+public class DeleteSepaMandataForDebitor extends UseCase<DeleteSepaMandataForDebitor> {
+
+    public DeleteSepaMandataForDebitor(final UseCaseTest testSuite) {
+        super(testSuite);
+    }
+
+    @Override
+    protected HttpResponse run() {
+        httpDelete("/api/hs/office/sepamandates/" + uuid("SEPA-Mandate: Test AG"))
+                .expecting(HttpStatus.NO_CONTENT);
+        return null;
+    }
+}

src/test/java/net/hostsharing/hsadminng/hs/office/usecases/debitor/InvalidateSepaMandateForDebitor.java

@@ -0,0 +1,25 @@
+package net.hostsharing.hsadminng.hs.office.usecases.debitor;
+
+import net.hostsharing.hsadminng.hs.office.usecases.UseCase;
+import net.hostsharing.hsadminng.hs.office.usecases.UseCaseTest;
+
+import static io.restassured.http.ContentType.JSON;
+import static org.springframework.http.HttpStatus.OK;
+
+public class InvalidateSepaMandateForDebitor extends UseCase<InvalidateSepaMandateForDebitor> {
+
+    public InvalidateSepaMandateForDebitor(final UseCaseTest testSuite) {
+        super(testSuite);
+    }
+
+    @Override
+    protected HttpResponse run() {
+
+        return httpPatch("/api/hs/office/sepamandates/" + uuid("SEPA-Mandate: Test AG"), usingJsonBody("""
+                {
+                   "validUntil": ${validUntil}
+                }
+                """))
+                .expecting(OK).expecting(JSON);
+    }
+}

src/test/java/net/hostsharing/hsadminng/hs/office/usecases/partner/CreatePartner.java

@@ -11,6 +11,10 @@ public class CreatePartner extends UseCase<CreatePartner> {
         super(testSuite, resultAlias);
     }
 
+    public CreatePartner(final UseCaseTest testSuite) {
+        super(testSuite);
+    }
+
     @Override
     protected HttpResponse run() {