Up frontend coverage

src-ui/src/app/services/rest/ocr-template.service.spec.ts

@@ -0,0 +1,78 @@
+import { provideHttpClient } from '@angular/common/http'
+import {
+  HttpTestingController,
+  provideHttpClientTesting,
+} from '@angular/common/http/testing'
+import { TestBed } from '@angular/core/testing'
+import { OcrZoneTransform, ZoneTestRequest } from 'src/app/data/ocr-template'
+import { environment } from 'src/environments/environment'
+import { OcrTemplateService } from './ocr-template.service'
+
+describe('OcrTemplateService', () => {
+  let service: OcrTemplateService
+  let http: HttpTestingController
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [provideHttpClient(), provideHttpClientTesting()],
+    })
+    service = TestBed.inject(OcrTemplateService)
+    http = TestBed.inject(HttpTestingController)
+  })
+
+  afterEach(() => http.verify())
+
+  it('builds page image URLs with zero-based page numbers', () => {
+    expect(service.getPageImageUrl(12, 0)).toBe(
+      `${environment.apiBaseUrl}ocr_templates/document-page-image/12/0/`
+    )
+    expect(service.getPageImageUrl(12, 2)).toBe(
+      `${environment.apiBaseUrl}ocr_templates/document-page-image/12/2/`
+    )
+  })
+
+  it('posts a zone test and returns the extraction result', () => {
+    const zone: ZoneTestRequest = {
+      name: 'Total',
+      x: 10,
+      y: 20,
+      width: 100,
+      height: 50,
+      page: -1,
+      ocr_language: 'eng',
+      transform: OcrZoneTransform.Numeric,
+      validation_regex: '\\d+',
+      zone_source_width: 1000,
+      zone_source_height: 1500,
+    }
+    const result = {
+      raw_text: 'Total: 123',
+      value: '123',
+      regex: '\\d+',
+      regex_match: true,
+    }
+    const next = jest.fn()
+    service.testZone(12, zone).subscribe(next)
+    const request = http.expectOne(
+      `${environment.apiBaseUrl}ocr_templates/test-zone/`
+    )
+    expect(request.request.method).toBe('POST')
+    expect(request.request.body).toEqual({ document: 12, zone })
+    request.flush(result)
+    expect(next).toHaveBeenCalledWith(result)
+  })
+
+  it('passes zone-test failures to the caller', () => {
+    const error = jest.fn()
+    service.testZone(12, {} as ZoneTestRequest).subscribe({ error })
+    http
+      .expectOne(`${environment.apiBaseUrl}ocr_templates/test-zone/`)
+      .flush(
+        { error: 'Invalid zone' },
+        { status: 400, statusText: 'Bad Request' }
+      )
+    expect(error).toHaveBeenCalledWith(
+      expect.objectContaining({ status: 400, error: { error: 'Invalid zone' } })
+    )
+  })
+})