yanchengPowerSupply/node_modules/pdfjs-dist/lib/test/unit/struct_tree_spec.js

122 lines
3.4 KiB
JavaScript

/**
* @licstart The following is the entire license notice for the
* JavaScript code in this page
*
* Copyright 2022 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.
*
* @licend The above is the entire license notice for the
* JavaScript code in this page
*/
"use strict";
var _test_utils = require("./test_utils.js");
var _api = require("../../display/api.js");
function equalTrees(rootA, rootB) {
function walk(a, b) {
expect(a.role).toEqual(b.role);
expect(a.lang).toEqual(b.lang);
expect(a.type).toEqual(b.type);
expect("children" in a).toEqual("children" in b);
if (!a.children) {
return;
}
expect(a.children.length).toEqual(b.children.length);
for (let i = 0; i < rootA.children.length; i++) {
walk(a.children[i], b.children[i]);
}
}
return walk(rootA, rootB);
}
describe("struct tree", function () {
describe("getStructTree", function () {
it("parses basic structure", async function () {
const filename = "structure_simple.pdf";
const params = (0, _test_utils.buildGetDocumentParams)(filename);
const loadingTask = (0, _api.getDocument)(params);
const doc = await loadingTask.promise;
const page = await doc.getPage(1);
const struct = await page.getStructTree();
equalTrees({
role: "Root",
children: [{
role: "Document",
lang: "en-US",
children: [{
role: "H1",
children: [{
role: "NonStruct",
children: [{
type: "content"
}]
}]
}, {
role: "P",
children: [{
role: "NonStruct",
children: [{
type: "content"
}]
}]
}, {
role: "H2",
children: [{
role: "NonStruct",
children: [{
type: "content"
}]
}]
}, {
role: "P",
children: [{
role: "NonStruct",
children: [{
type: "content"
}]
}]
}]
}]
}, struct);
await loadingTask.destroy();
});
it("parses structure with marked content reference", async function () {
const filename = "issue6782.pdf";
const params = (0, _test_utils.buildGetDocumentParams)(filename);
const loadingTask = (0, _api.getDocument)(params);
const doc = await loadingTask.promise;
const page = await doc.getPage(1);
const struct = await page.getStructTree();
equalTrees({
role: "Root",
children: [{
role: "Part",
children: [{
role: "P",
children: Array(27).fill({
type: "content"
})
}]
}]
}, struct);
await loadingTask.destroy();
});
});
});