Function createObjectStream

src/parser/object-stream-parser.test.ts:16–47

* Create a mock object stream with the given objects. * Index format: objNum1 offset1 objNum2 offset2 ... * Objects are stored as text representations.

(objects: Array<{ objNum: number; text: string }>)

 * Objects are stored as text representations.
 */
function createObjectStream(objects: Array<{ objNum: number; text: string }>): PdfStream {
  // Build index and object sections
  const indexParts: string[] = [];
  const objectParts: string[] = [];
  let currentOffset = 0;

  for (const { objNum, text } of objects) {
    indexParts.push(`${objNum} ${currentOffset}`);
    objectParts.push(text);
    // Add 1 for the newline separator
    currentOffset += new TextEncoder().encode(text).length + 1;
  }

  const indexSection = `${indexParts.join(" ")}\n`;
  const objectSection = objectParts.join("\n");
  const fullContent = indexSection + objectSection;

  const data = new TextEncoder().encode(fullContent);
  const first = new TextEncoder().encode(indexSection).length;

  // Create stream dictionary
  const stream = new PdfStream(
    [
      ["Type", PdfName.of("ObjStm")],
      ["N", PdfNumber.of(objects.length)],
      ["First", PdfNumber.of(first)],
    ],
    data,
  );

  return stream;
}

describe("ObjectStreamParser", () => {
  describe("constructor", () => {