결재 단계 목록 화면과 테스트 도입

test/features/approvals/step/presentation/controllers/approval_step_controller_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:mocktail/mocktail.dart';
+
+import 'package:superport_v2/core/common/models/paginated_result.dart';
+import 'package:superport_v2/features/approvals/domain/entities/approval.dart';
+import 'package:superport_v2/features/approvals/step/domain/entities/approval_step_record.dart';
+import 'package:superport_v2/features/approvals/step/domain/repositories/approval_step_repository.dart';
+import 'package:superport_v2/features/approvals/step/presentation/controllers/approval_step_controller.dart';
+
+class _MockApprovalStepRepository extends Mock
+    implements ApprovalStepRepository {}
+
+void main() {
+  late ApprovalStepController controller;
+  late _MockApprovalStepRepository repository;
+
+  final sampleRecord = ApprovalStepRecord(
+    approvalId: 10,
+    approvalNo: 'APP-2024-0001',
+    transactionNo: 'TRX-2024-01',
+    templateName: '입고 기본',
+    step: ApprovalStep(
+      id: 100,
+      stepOrder: 1,
+      approver: ApprovalApprover(id: 21, employeeNo: 'E001', name: '최승인'),
+      status: ApprovalStatus(id: 1, name: '승인대기', color: null),
+      assignedAt: DateTime(2024, 4, 1, 9),
+      decidedAt: null,
+      note: '확인 요청',
+    ),
+  );
+
+  PaginatedResult<ApprovalStepRecord> createResult(
+    List<ApprovalStepRecord> items,
+  ) {
+    return PaginatedResult<ApprovalStepRecord>(
+      items: items,
+      page: 1,
+      pageSize: 20,
+      total: items.length,
+    );
+  }
+
+  setUp(() {
+    repository = _MockApprovalStepRepository();
+    controller = ApprovalStepController(repository: repository);
+  });
+
+  test('fetch 성공 시 결과를 갱신한다', () async {
+    when(
+      () => repository.list(
+        page: any(named: 'page'),
+        pageSize: any(named: 'pageSize'),
+        query: any(named: 'query'),
+        statusId: any(named: 'statusId'),
+        approverId: any(named: 'approverId'),
+        approvalId: any(named: 'approvalId'),
+      ),
+    ).thenAnswer((_) async => createResult([sampleRecord]));
+
+    await controller.fetch();
+
+    expect(controller.result?.items, isNotEmpty);
+    expect(controller.errorMessage, isNull);
+    verify(
+      () => repository.list(
+        page: 1,
+        pageSize: 20,
+        query: null,
+        statusId: null,
+        approverId: null,
+        approvalId: null,
+      ),
+    ).called(1);
+  });
+
+  test('에러 발생 시 errorMessage를 설정한다', () async {
+    when(
+      () => repository.list(
+        page: any(named: 'page'),
+        pageSize: any(named: 'pageSize'),
+        query: any(named: 'query'),
+        statusId: any(named: 'statusId'),
+        approverId: any(named: 'approverId'),
+        approvalId: any(named: 'approvalId'),
+      ),
+    ).thenThrow(Exception('fail'));
+
+    await controller.fetch();
+
+    expect(controller.errorMessage, isNotNull);
+    expect(controller.result, isNull);
+  });
+
+  test('필터 갱신 후 fetch 시 파라미터에 반영한다', () async {
+    when(
+      () => repository.list(
+        page: any(named: 'page'),
+        pageSize: any(named: 'pageSize'),
+        query: any(named: 'query'),
+        statusId: any(named: 'statusId'),
+        approverId: any(named: 'approverId'),
+        approvalId: any(named: 'approvalId'),
+      ),
+    ).thenAnswer((_) async => createResult([sampleRecord]));
+
+    controller.updateQuery('APP-2024');
+    controller.updateStatusId(2);
+
+    await controller.fetch(page: 3);
+
+    verify(
+      () => repository.list(
+        page: 3,
+        pageSize: 20,
+        query: 'APP-2024',
+        statusId: 2,
+        approverId: null,
+        approvalId: null,
+      ),
+    ).called(1);
+  });
+
+  test('fetchDetail 성공 시 selected가 설정된다', () async {
+    when(
+      () => repository.fetchDetail(any()),
+    ).thenAnswer((_) async => sampleRecord);
+
+    final detail = await controller.fetchDetail(100);
+
+    expect(detail, isNotNull);
+    expect(controller.selected, isNotNull);
+    verify(() => repository.fetchDetail(100)).called(1);
+  });
+
+  test('fetchDetail 실패 시 null을 반환한다', () async {
+    when(() => repository.fetchDetail(any())).thenThrow(Exception('fail'));
+
+    final detail = await controller.fetchDetail(100);
+
+    expect(detail, isNull);
+    expect(controller.errorMessage, isNotNull);
+  });
+}