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test/unit/pdf_viewer.component_spec.js

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+/* Copyright 2023 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { FindState, PDFFindController } from "../../web/pdf_find_controller.js";
+import {
+  LinkTarget,
+  PDFLinkService,
+  SimpleLinkService,
+} from "../../web/pdf_link_service.js";
+import {
+  parseQueryString,
+  ProgressBar,
+  RenderingStates,
+  ScrollMode,
+  SpreadMode,
+} from "../../web/ui_utils.js";
+import { AnnotationLayerBuilder } from "../../web/annotation_layer_builder.js";
+import { DownloadManager } from "../../web/download_manager.js";
+import { EventBus } from "../../web/event_utils.js";
+import { GenericL10n } from "../../web/genericl10n.js";
+import { PDFHistory } from "../../web/pdf_history.js";
+import { PDFPageView } from "../../web/pdf_page_view.js";
+import { PDFScriptingManager } from "../../web/pdf_scripting_manager.component.js";
+import { PDFSinglePageViewer } from "../../web/pdf_single_page_viewer.js";
+import { PDFViewer } from "../../web/pdf_viewer.js";
+import { StructTreeLayerBuilder } from "../../web/struct_tree_layer_builder.js";
+import { TextLayerBuilder } from "../../web/text_layer_builder.js";
+import { XfaLayerBuilder } from "../../web/xfa_layer_builder.js";
+
+const expectedAPI = Object.freeze({
+  AnnotationLayerBuilder,
+  DownloadManager,
+  EventBus,
+  FindState,
+  GenericL10n,
+  LinkTarget,
+  parseQueryString,
+  PDFFindController,
+  PDFHistory,
+  PDFLinkService,
+  PDFPageView,
+  PDFScriptingManager,
+  PDFSinglePageViewer,
+  PDFViewer,
+  ProgressBar,
+  RenderingStates,
+  ScrollMode,
+  SimpleLinkService,
+  SpreadMode,
+  StructTreeLayerBuilder,
+  TextLayerBuilder,
+  XfaLayerBuilder,
+});
+
+describe("pdfviewer_api", function () {
+  it("checks that the *official* PDF.js-viewer API exposes the expected functionality", async function () {
+    const pdfviewerAPI = await import("../../web/pdf_viewer.component.js");
+
+    // The imported Object contains an (automatically) inserted Symbol,
+    // hence we copy the data to allow using a simple comparison below.
+    expect({ ...pdfviewerAPI }).toEqual(expectedAPI);
+
+    expect(Object.keys(globalThis.pdfjsViewer).sort()).toEqual(
+      Object.keys(expectedAPI).sort()
+    );
+  });
+});