src/main/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionController.java

@@ -240,7 +240,7 @@ public class HsOfficeCoopAssetsTransactionController implements HsOfficeCoopAsse
                 final var adoptionAssetTx = revertedAssetTx.getAdoptionAssetTx();
                 final var adoptionReversalAssetTx = HsOfficeCoopAssetsTransactionEntity.builder()
                         .transactionType(REVERSAL)
-                        .membership(adoptionAssetTx.getMembership()) // FIXME: check
+                        .membership(adoptionAssetTx.getMembership())
                         .revertedAssetTx(adoptionAssetTx)
                         .assetValue(adoptionAssetTx.getAssetValue().negate())
                         .comment(resource.getComment())
@@ -254,6 +254,10 @@ public class HsOfficeCoopAssetsTransactionController implements HsOfficeCoopAsse
 
         if (resource.getTransactionType() == HsOfficeCoopAssetsTransactionTypeResource.TRANSFER) {
             final var adoptingMembership = determineAdoptingMembership(resource);
+            if ( entity.getMembership() == adoptingMembership) {
+                throw new ValidationException("transferring and adopting membership must be different, but both are " +
+                        adoptingMembership.getTaggedMemberNumber());
+            }
             final var adoptingAssetTx = createAdoptingAssetTx(entity, adoptingMembership);
             entity.setAdoptionAssetTx(adoptingAssetTx);
         }
@@ -289,13 +293,9 @@ public class HsOfficeCoopAssetsTransactionController implements HsOfficeCoopAsse
                     + "' not found or not accessible");
         }
 
-        if (resource.getTransactionType() == HsOfficeCoopAssetsTransactionTypeResource.TRANSFER) {
+        throw new ValidationException(
-            throw new ValidationException(
+                "either adoptingMembership.uuid or adoptingMembership.memberNumber must be given for transactionType="
-                    "either adoptingMembership.uuid or adoptingMembership.memberNumber must be given for transactionType="
+                        + HsOfficeCoopAssetsTransactionTypeResource.TRANSFER);
-                            + HsOfficeCoopAssetsTransactionTypeResource.TRANSFER);
-        }
-
-        return null;
     }
 
     private HsOfficeCoopAssetsTransactionEntity createAdoptingAssetTx(

src/test/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionControllerRestTest.java

@@ -31,11 +31,13 @@ import java.util.UUID;
 import java.util.function.Function;
 
 import static net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionType.ADOPTION;
+import static net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionType.DEPOSIT;
 import static net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionType.DISBURSAL;
 import static net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionType.REVERSAL;
 import static net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionType.TRANSFER;
 import static net.hostsharing.hsadminng.rbac.test.JsonBuilder.jsonObject;
 import static net.hostsharing.hsadminng.rbac.test.JsonMatcher.lenientlyEquals;
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assumptions.assumeThat;
 import static org.hamcrest.Matchers.is;
 import static org.mockito.ArgumentMatchers.any;
@@ -49,13 +51,13 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 @RunWith(SpringRunner.class)
 class HsOfficeCoopAssetsTransactionControllerRestTest {
 
-    // If you need to run just a single test-case in this data-driven test-method,
+    // If you need to run just a single test-case in this data-driven test-method, set SINGLE_TEST_CASE_EXECUTION to true!
-    // set SINGLE_TEST_CASE_EXECUTION to true and make sure you do NOT EVER commit it to git!
+    // There is a test which fails if single test-case execution active to avoid merging this to master.
     private static final boolean SINGLE_TEST_CASE_EXECUTION = false;
 
     private static final int DYNAMIC_UUID_START_INDEX = 13;
 
-    private static final UUID UNAVAILABLE_MEMBERSHIP_UUID = TestUuidGenerator.use(0);
+    private static final UUID UNAVAILABLE_UUID = TestUuidGenerator.use(0);
     private static final String UNAVAILABLE_MEMBER_NUMBER = "M-1234699";
 
     private static final UUID ORIGIN_MEMBERSHIP_UUID = TestUuidGenerator.use(1);
@@ -202,6 +204,34 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
                 .setRevertedAssetTx(SOME_REVERTED_TRANSFER_ASSET_TX_ENTITY.getAdoptionAssetTx());
     }
 
+    private static final String EXPECTED_RESULT_FROM_GET_SINGLE = """
+            {
+                 "uuid": "99999999-9999-9999-9999-999999999999",
+                 "membership.uuid": "11111111-1111-1111-1111-111111111111",
+                 "membership.memberNumber": "M-1111100",
+                 "transactionType": "TRANSFER",
+                 "assetValue": -1024,
+                 "valueDate": "2024-11-10",
+                 "reference": "some transfer",
+                 "comment": "some transfer to get reverted",
+                 "adoptionAssetTx": {
+                   "uuid": "bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb",
+                   "membership.uuid": "22222222-2222-2222-2222-222222222222",
+                   "membership.memberNumber": "M-1234500",
+                   "transactionType": "ADOPTION",
+                   "assetValue": 1024,
+                   "valueDate": "2024-11-10",
+                   "reference": "related adoption",
+                   "comment": "some reversal of a transfer asset tx",
+                   "adoptionAssetTx.uuid": null,
+                   "transferAssetTx.uuid": "99999999-9999-9999-9999-999999999999",
+                   "revertedAssetTx.uuid": null,
+                   "reversalAssetTx.uuid": "cccccccc-cccc-cccc-cccc-cccccccccccc"
+                }
+            }
+            """;
+
+
     private static final String EXPECTED_RESULT_FROM_GET_LIST = """
             [
                {
@@ -501,29 +531,43 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
                 "[membershipUuid must not be null but is \"null\"]"), // TODO.impl: should be membership.uuid, Spring validation-problem?
 
         MEMBERSHIP_UUID_NOT_FOUND_OR_NOT_ACCESSIBLE(
-                requestBody -> requestBody.with("membership.uuid", UNAVAILABLE_MEMBERSHIP_UUID.toString()),
+                requestBody -> requestBody.with("membership.uuid", UNAVAILABLE_UUID),
-                "membership.uuid " + UNAVAILABLE_MEMBERSHIP_UUID + " not found"),
+                "membership.uuid " + UNAVAILABLE_UUID + " not found"),
 
         MEMBERSHIP_UUID_AND_MEMBER_NUMBER_MUST_NOT_BE_GIVEN_BOTH(
                 requestBody -> requestBody
                         .with("transactionType", TRANSFER.name())
                         .with("assetValue", "-128.00")
-                        .with("adoptingMembership.uuid", UNAVAILABLE_MEMBERSHIP_UUID.toString())
+                        .with("adoptingMembership.uuid", UNAVAILABLE_UUID)
                         .with("adoptingMembership.memberNumber", UNAVAILABLE_MEMBER_NUMBER),
                 "either adoptingMembership.uuid or adoptingMembership.memberNumber can be given, not both"),
 
         MEMBERSHIP_UUID_OR_MEMBER_NUMBER_MUST_BE_GIVEN(
                 requestBody -> requestBody
-                        .with("transactionType", TRANSFER.name())
+                        .with("transactionType", TRANSFER)
                         .with("assetValue", "-128.00"),
                 "either adoptingMembership.uuid or adoptingMembership.memberNumber must be given for transactionType=TRANSFER"),
 
         REVERSAL_ASSET_TRANSACTION_REQUIRES_REVERTED_ASSET_TX_UUID(
                 requestBody -> requestBody
-                            .with("transactionType", REVERSAL.name())
+                            .with("transactionType", REVERSAL)
                             .with("assetValue", "-128.00"),
                 "REVERSAL asset transaction requires revertedAssetTx.uuid"),
 
+        REVERSAL_ASSET_TRANSACTION_REQUIRES_AVAILABLE_REVERTED_ASSET_TX_UUID(
+                requestBody -> requestBody
+                        .with("transactionType", REVERSAL)
+                        .with("assetValue", "-128.00")
+                        .with("revertedAssetTx.uuid", UNAVAILABLE_UUID),
+                "revertedAssetTx.uuid " + UNAVAILABLE_UUID + " not found"),
+
+        REVERSAL_ASSET_TRANSACTION_MUST_NEGATE_VALUE_OF_REVERTED_ASSET_TX(
+                requestBody -> requestBody
+                        .with("transactionType", REVERSAL)
+                        .with("assetValue", "128.00")
+                        .with("revertedAssetTx.uuid", SOME_EXISTING_LOSS_ASSET_TX_UUID),
+                "given assetValue=128.00 but must be negative value from reverted asset tx: -64"),
+
         TRANSACTION_TYPE_MISSING(
                 requestBody -> requestBody.without("transactionType"),
                 "[transactionType must not be null but is \"null\"]"),
@@ -534,35 +578,40 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
 
         ASSETS_VALUE_FOR_DEPOSIT_MUST_BE_POSITIVE(
                 requestBody -> requestBody
-                        .with("transactionType", "DEPOSIT")
+                        .with("transactionType", DEPOSIT)
                         .with("assetValue", -64.00),
                 "[for DEPOSIT, assetValue must be positive but is \"-64.00\"]"),
 
         ASSETS_VALUE_FOR_DISBURSAL_MUST_BE_NEGATIVE(
                 requestBody -> requestBody
-                        .with("transactionType", "DISBURSAL")
+                        .with("transactionType", DISBURSAL)
                         .with("assetValue", 64.00),
                 "[for DISBURSAL, assetValue must be negative but is \"64.00\"]"),
 
-        //TODO: other transaction types
+        ADOPTING_MEMBERSHIP_MUST_NOT_BE_THE_SAME(
+                requestBody -> requestBody
+                        .with("transactionType", TRANSFER)
+                        .with("assetValue", -64.00)
+                        .with("adoptingMembership.uuid", ORIGIN_MEMBERSHIP_UUID),
+                "transferring and adopting membership must be different, but both are M-1111100"),
 
         ADOPTING_MEMBERSHIP_NUMBER_FOR_TRANSFER_MUST_BE_GIVEN_AND_AVAILABLE(
                 requestBody -> requestBody
-                        .with("transactionType", "TRANSFER")
+                        .with("transactionType", TRANSFER)
                         .with("assetValue", -64.00)
                         .with("adoptingMembership.memberNumber", UNAVAILABLE_MEMBER_NUMBER),
                 "adoptingMembership.memberNumber='M-1234699' not found or not accessible"),
 
         ADOPTING_MEMBERSHIP_UUID_FOR_TRANSFER_MUST_BE_GIVEN_AND_AVAILABLE(
                 requestBody -> requestBody
-                        .with("transactionType", "TRANSFER")
+                        .with("transactionType", TRANSFER)
                         .with("assetValue", -64.00)
-                        .with("adoptingMembership.uuid", UNAVAILABLE_MEMBERSHIP_UUID.toString()),
+                        .with("adoptingMembership.uuid", UNAVAILABLE_UUID),
-                "adoptingMembership.uuid='" + UNAVAILABLE_MEMBERSHIP_UUID + "' not found or not accessible"),
+                "adoptingMembership.uuid='" + UNAVAILABLE_UUID + "' not found or not accessible"),
 
         ASSETS_VALUE_MUST_NOT_BE_NULL(
                 requestBody -> requestBody
-                        .with("transactionType", "REVERSAL")
+                        .with("transactionType", REVERSAL)
                         .with("assetValue", 0.00),
                 "[assetValue must not be 0 but is \"0.00\"]"),
 
@@ -600,7 +649,7 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
         //  - set SINGLE_TEST_CASE_EXECUTION to true - see above
         //  - select the test case enum value you want to run
         assumeThat(!SINGLE_TEST_CASE_EXECUTION ||
-                testCase == BadRequestTestCases.MEMBERSHIP_UUID_OR_MEMBER_NUMBER_MUST_BE_GIVEN).isTrue();
+                testCase == BadRequestTestCases.ADOPTING_MEMBERSHIP_MUST_NOT_BE_THE_SAME).isTrue();
 
         // when
         mockMvc.perform(MockMvcRequestBuilders
@@ -611,9 +660,9 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
                         .accept(MediaType.APPLICATION_JSON))
 
                 // then
-                .andExpect(jsonPath("message", is("ERROR: [400] " + testCase.expectedErrorMessage)))
                 .andExpect(jsonPath("statusCode", is(400)))
                 .andExpect(jsonPath("statusPhrase", is("Bad Request")))
+                .andExpect(jsonPath("message", is("ERROR: [400] " + testCase.expectedErrorMessage)))
                 .andExpect(status().is4xxClientError());
     }
 
@@ -621,37 +670,37 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
 
         REVERTING_SIMPLE_ASSET_TRANSACTION(
                 requestBody -> requestBody
-                        .with("transactionType", "REVERSAL")
+                        .with("transactionType", REVERSAL)
                         .with("assetValue", "64.00")
                         .with("valueDate", "2024-10-15")
                         .with("reference", "reversal of loss ref")
                         .with("comment", "reversal of loss asset tx comment")
-                        .with("revertedAssetTx.uuid", SOME_EXISTING_LOSS_ASSET_TX_UUID.toString()),
+                        .with("revertedAssetTx.uuid", SOME_EXISTING_LOSS_ASSET_TX_UUID),
                 Expected.REVERT_LOSS_RESPONSE),
 
         TRANSFER_TO_GIVEN_AVAILABLE_MEMBERSHIP_NUMBER(
                 requestBody -> requestBody
-                        .with("transactionType", "TRANSFER")
+                        .with("transactionType", TRANSFER)
                         .with("assetValue", -64.00)
                         .with("adoptingMembership.memberNumber", AVAILABLE_TARGET_MEMBER_NUMBER),
                 Expected.TRANSFER_RESPONSE),
 
         TRANSFER_TO_GIVEN_AVAILABLE_MEMBERSHIP_UUID(
                 requestBody -> requestBody
-                        .with("transactionType", "TRANSFER")
+                        .with("transactionType", TRANSFER)
                         .with("assetValue", -64.00)
-                        .with("membership.uuid", ORIGIN_MEMBERSHIP_UUID.toString())
+                        .with("membership.uuid", ORIGIN_MEMBERSHIP_UUID)
-                        .with("adoptingMembership.uuid", AVAILABLE_TARGET_MEMBERSHIP_UUID.toString()),
+                        .with("adoptingMembership.uuid", AVAILABLE_TARGET_MEMBERSHIP_UUID),
                 Expected.TRANSFER_RESPONSE),
 
         REVERTING_TRANSFER_ASSET_TRANSACTION_IMPLICITLY_REVERTS_ADOPTING_ASSET_TRANSACTION(
                 requestBody -> requestBody
-                        .with("transactionType", "REVERSAL")
+                        .with("transactionType", REVERSAL)
                         .with("assetValue", "256.00")
                         .with("valueDate", "2024-10-15")
                         .with("reference", "reversal of transfer ref")
                         .with("comment", "reversal of transfer asset tx comment")
-                        .with("revertedAssetTx.uuid", SOME_EXISTING_TRANSFER_ASSET_TX_UUID.toString()),
+                        .with("revertedAssetTx.uuid", SOME_EXISTING_TRANSFER_ASSET_TX_UUID),
                 Expected.REVERT_TRANSFER_RESPONSE);
 
         private final Function<JsonBuilder, JsonBuilder> givenBodyTransformation;
@@ -790,6 +839,38 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
                 .andExpect(jsonPath("$", lenientlyEquals(testCase.expectedResponseBody)));
     }
 
+    @Test
+    void getSingleGeneratesProperJsonForAvailableUuid() throws Exception {
+        // given
+        when(coopAssetsTransactionRepo.findByUuid(SOME_REVERTED_TRANSFER_ASSET_TX_ENTITY.getUuid()))
+                .thenReturn(Optional.of(SOME_REVERTED_TRANSFER_ASSET_TX_ENTITY));
+
+        // when
+        mockMvc.perform(MockMvcRequestBuilders
+                        .get("/api/hs/office/coopassetstransactions/" + SOME_REVERTED_TRANSFER_ASSET_TX_ENTITY.getUuid())
+                        .header("current-subject", "superuser-alex@hostsharing.net")
+                        .contentType(MediaType.APPLICATION_JSON))
+
+                // then
+                .andExpect(status().is2xxSuccessful())
+                .andExpect(jsonPath("$", lenientlyEquals(EXPECTED_RESULT_FROM_GET_SINGLE)));
+    }
+
+    @Test
+    void getSingleGeneratesNotFoundForUnavailableUuid() throws Exception {
+        // given
+        when(coopAssetsTransactionRepo.findByUuid(UNAVAILABLE_UUID)).thenReturn(Optional.empty());
+
+        // when
+        mockMvc.perform(MockMvcRequestBuilders
+                        .get("/api/hs/office/coopassetstransactions/" + UNAVAILABLE_UUID)
+                        .header("current-subject", "superuser-alex@hostsharing.net")
+                        .contentType(MediaType.APPLICATION_JSON))
+
+                // then
+                .andExpect(status().isNotFound());
+    }
+
     @Test
     void getListGeneratesProperJson() throws Exception {
         // given
@@ -817,6 +898,11 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
                 .andExpect(jsonPath("$", lenientlyEquals(EXPECTED_RESULT_FROM_GET_LIST)));
     }
 
+    @Test
+    void singleTestCaseExecutionMustBeDisabled() {
+        assertThat(SINGLE_TEST_CASE_EXECUTION).isFalse();
+    }
+
     @BeforeEach
     void initMocks() {
         TestUuidGenerator.start(DYNAMIC_UUID_START_INDEX);

src/test/java/net/hostsharing/hsadminng/rbac/test/JsonBuilder.java

@@ -27,7 +27,7 @@ public class JsonBuilder {
      * @param value JSON value
      * @return this JsonBuilder
      */
-    public JsonBuilder with(final String key, final String value) {
+    public JsonBuilder with(final String key, final Object value) {
         try {
             jsonObject.put(key, value);
         } catch (JSONException e) {