pdf.js/test/unit/annotation_layer_spec.js

/* globals expect, it, describe, Dict, Name, Annotation, AnnotationBorderStyle,
           AnnotationBorderStyleType, AnnotationFlag, PDFJS, combineUrl,
           beforeEach, afterEach, stringToBytes */

'use strict';

describe('Annotation layer', function() {
  describe('Annotation', function() {
    it('should set and get flags', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setFlags(13);

      expect(annotation.hasFlag(AnnotationFlag.INVISIBLE)).toEqual(true);
      expect(annotation.hasFlag(AnnotationFlag.NOZOOM)).toEqual(true);
      expect(annotation.hasFlag(AnnotationFlag.PRINT)).toEqual(true);
      expect(annotation.hasFlag(AnnotationFlag.READONLY)).toEqual(false);
    });

    it('should be viewable and not printable by default', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });

      expect(annotation.viewable).toEqual(true);
      expect(annotation.printable).toEqual(false);
    });

    it('should set and get a valid rectangle', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setRectangle([117, 694, 164.298, 720]);

      expect(annotation.rectangle).toEqual([117, 694, 164.298, 720]);
    });

    it('should not set and get an invalid rectangle', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setRectangle([117, 694, 164.298]);

      expect(annotation.rectangle).toEqual([0, 0, 0, 0]);
    });

    it('should reject a color if it is not an array', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setColor('red');

      expect(annotation.color).toEqual(new Uint8Array([0, 0, 0]));
    });

    it('should set and get a transparent color', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setColor([]);

      expect(annotation.color).toEqual(null);
    });

    it('should set and get a grayscale color', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setColor([0.4]);

      expect(annotation.color).toEqual(new Uint8Array([102, 102, 102]));
    });

    it('should set and get an RGB color', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setColor([0, 0, 1]);

      expect(annotation.color).toEqual(new Uint8Array([0, 0, 255]));
    });

    it('should set and get a CMYK color', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setColor([0.1, 0.92, 0.84, 0.02]);

      expect(annotation.color).toEqual(new Uint8Array([233, 59, 47]));
    });

    it('should not set and get an invalid color', function() {
      var dict = new Dict();
      dict.set('Subtype', '');
      var annotation = new Annotation({ dict: dict, ref: 0 });
      annotation.setColor([0.4, 0.6]);

      expect(annotation.color).toEqual(new Uint8Array([0, 0, 0]));
    });
  });

  describe('AnnotationBorderStyle', function() {
    it('should set and get a valid width', function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setWidth(3);

      expect(borderStyle.width).toEqual(3);
    });

    it('should not set and get an invalid width', function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setWidth('three');

      expect(borderStyle.width).toEqual(1);
    });

    it('should set and get a valid style', function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setStyle(Name.get('D'));

      expect(borderStyle.style).toEqual(AnnotationBorderStyleType.DASHED);
    });

    it('should not set and get an invalid style', function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setStyle('Dashed');

      expect(borderStyle.style).toEqual(AnnotationBorderStyleType.SOLID);
    });

    it('should set and get a valid dash array', function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setDashArray([1, 2, 3]);

      expect(borderStyle.dashArray).toEqual([1, 2, 3]);
    });

    it('should not set and get an invalid dash array', function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setDashArray([0, 0]);

      expect(borderStyle.dashArray).toEqual([3]);
    });

    it('should set and get a valid horizontal corner radius', function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setHorizontalCornerRadius(3);

      expect(borderStyle.horizontalCornerRadius).toEqual(3);
    });

    it('should not set and get an invalid horizontal corner radius',
        function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setHorizontalCornerRadius('three');

      expect(borderStyle.horizontalCornerRadius).toEqual(0);
    });

    it('should set and get a valid vertical corner radius', function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setVerticalCornerRadius(3);

      expect(borderStyle.verticalCornerRadius).toEqual(3);
    });

    it('should not set and get an invalid horizontal corner radius',
        function() {
      var borderStyle = new AnnotationBorderStyle();
      borderStyle.setVerticalCornerRadius('three');

      expect(borderStyle.verticalCornerRadius).toEqual(0);
    });
  });

  describe('FileAttachmentAnnotation', function() {
    var loadingTask;
    var annotations;

    beforeEach(function(done) {
      var pdfUrl = combineUrl(window.location.href,
                              '../pdfs/annotation-fileattachment.pdf');
      loadingTask = PDFJS.getDocument(pdfUrl);
      loadingTask.promise.then(function(pdfDocument) {
        return pdfDocument.getPage(1).then(function(pdfPage) {
          return pdfPage.getAnnotations().then(function (pdfAnnotations) {
            annotations = pdfAnnotations;
            done();
          });
        });
      }).catch(function (reason) {
        done.fail(reason);
      });
    });

    afterEach(function() {
      loadingTask.destroy();
    });

    it('should correctly parse a file attachment', function() {
      var annotation = annotations[0];
      expect(annotation.file.filename).toEqual('Test.txt');
      expect(annotation.file.content).toEqual(stringToBytes('Test attachment'));
    });
  });
});