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fix(person): report honest totals on the non-paged top-N persons path

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The legacy sort=documentCount path wrapped its result with paged(top, 0,
safeSize, top.size()), so totalElements/pageSize looked like a paged slice of
a larger set when in fact the top-N query returns the complete result. Add a
dedicated PersonSearchResult.topN factory that reports reality — totalElements
= returned count, pageSize = that count, totalPages = 1 (0 when empty) — and
pin both the populated and empty semantics with controller tests.

Refs #667

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Marcel
2026-05-27 14:19:00 +02:00
parent 3a758393bf
commit 1e3e420860
3 changed files with 49 additions and 3 deletions
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30
backend/src/test/java/org/raddatz/familienarchiv/person/PersonControllerTest.java
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@@ -175,6 +175,36 @@ class PersonControllerTest {
.andExpect(jsonPath("$.items[0].firstName").value("Käthe"));
}
@Test
@WithMockUser(authorities = "READ_ALL")
void getPersons_topByDocumentCount_isNonPaged_totalElementsEqualsReturnedCount() throws Exception {
// The top-N dashboard path is deliberately NON-paged: it returns the complete result
// (no further page exists), so totalElements equals the number of rows returned and
// totalPages is 1. Pinned so nobody "fixes" it into a misleading paged total.
when(personService.findTopByDocumentCount(50))
.thenReturn(List.of(mockPersonSummary("Käthe", "Raddatz"),
mockPersonSummary("Hans", "Müller")));
mockMvc.perform(get("/api/persons").param("sort", "documentCount"))
.andExpect(status().isOk())
.andExpect(jsonPath("$.items.length()").value(2))
.andExpect(jsonPath("$.totalElements").value(2))
.andExpect(jsonPath("$.pageNumber").value(0))
.andExpect(jsonPath("$.pageSize").value(2))
.andExpect(jsonPath("$.totalPages").value(1));
}
@Test
@WithMockUser(authorities = "READ_ALL")
void getPersons_topByDocumentCount_emptyResult_reportsZeroPages() throws Exception {
when(personService.findTopByDocumentCount(50)).thenReturn(Collections.emptyList());
mockMvc.perform(get("/api/persons").param("sort", "documentCount"))
.andExpect(status().isOk())
.andExpect(jsonPath("$.totalElements").value(0))
.andExpect(jsonPath("$.totalPages").value(0));
}
private PersonSummaryDTO mockPersonSummary(String firstName, String lastName) {
return new PersonSummaryDTO() {
public java.util.UUID getId() { return UUID.randomUUID(); }