tileserver-gl/test/static.js

const testStatic = function (prefix, q, format, status, scale, type, query) {
  if (scale) q += '@' + scale + 'x';
  let path = '/styles/' + prefix + '/static/' + q + '.' + format;
  if (query) {
    path += query;
  }
  it(path + ' returns ' + status, function (done) {
    const test = supertest(app).get(path);
    if (status) test.expect(status);
    if (type) test.expect('Content-Type', type);
    test.end(done);
  });
};

const prefix = 'test-style';

describe('Static endpoints', function () {
  describe('center-based', function () {
    describe('valid requests', function () {
      describe('various formats', function () {
        testStatic(
          prefix,
          '0,0,0/256x256',
          'png',
          200,
          undefined,
          /image\/png/,
        );
        testStatic(
          prefix,
          '0,0,0/256x256',
          'jpg',
          200,
          undefined,
          /image\/jpeg/,
        );
        testStatic(
          prefix,
          '0,0,0/256x256',
          'jpeg',
          200,
          undefined,
          /image\/jpeg/,
        );
        testStatic(
          prefix,
          '0,0,0/256x256',
          'webp',
          200,
          undefined,
          /image\/webp/,
        );
      });

      describe('different parameters', function () {
        testStatic(prefix, '0,0,0/300x300', 'png', 200, 2);
        testStatic(prefix, '0,0,0/300x300', 'png', 200, 3);

        testStatic(prefix, '0,0,1.5/256x256', 'png', 200);

        testStatic(prefix, '80,40,20/600x300', 'png', 200, 3);
        testStatic(prefix, '8.5,40.5,20/300x150', 'png', 200, 3);
        testStatic(prefix, '-8.5,-40.5,20/300x150', 'png', 200, 3);

        testStatic(prefix, '8,40,2@0,0/300x150', 'png', 200);
        testStatic(prefix, '8,40,2@180,45/300x150', 'png', 200, 2);
        testStatic(prefix, '8,40,2@10/300x150', 'png', 200, 3);
        testStatic(prefix, '8,40,2@10.3,20.4/300x300', 'png', 200);
        testStatic(prefix, '0,0,2@390,120/300x300', 'png', 200);
      });
    });

    describe('invalid requests return 4xx', function () {
      testStatic(prefix, '190,0,0/256x256', 'png', 400);
      testStatic(prefix, '0,86,0/256x256', 'png', 400);
      testStatic(prefix, '80,40,20/0x0', 'png', 400);
      testStatic(prefix, '0,0,0/256x256', 'gif', 400);
      testStatic(prefix, '0,0,0/256x256', 'png', 404, 1);

      testStatic(prefix, '0,0,-1/256x256', 'png', 404);
      testStatic(prefix, '0,0,0/256.5x256.5', 'png', 404);

      testStatic(prefix, '0,0,0,/256x256', 'png', 404);
      testStatic(prefix, '0,0,0,0,/256x256', 'png', 404);
    });
  });

  describe('area-based', function () {
    describe('valid requests', function () {
      describe('various formats', function () {
        testStatic(
          prefix,
          '-180,-80,180,80/10x10',
          'png',
          200,
          undefined,
          /image\/png/,
        );
        testStatic(
          prefix,
          '-180,-80,180,80/10x10',
          'jpg',
          200,
          undefined,
          /image\/jpeg/,
        );
        testStatic(
          prefix,
          '-180,-80,180,80/10x10',
          'jpeg',
          200,
          undefined,
          /image\/jpeg/,
        );
        testStatic(
          prefix,
          '-180,-80,180,80/10x10',
          'webp',
          200,
          undefined,
          /image\/webp/,
        );
      });

      describe('different parameters', function () {
        testStatic(prefix, '-180,-90,180,90/20x20', 'png', 200, 2);
        testStatic(prefix, '0,0,1,1/200x200', 'png', 200, 3);

        testStatic(prefix, '-280,-80,0,80/280x160', 'png', 200);
      });
    });

    describe('invalid requests return 4xx', function () {
      testStatic(prefix, '0,87,1,88/5x2', 'png', 400);

      testStatic(prefix, '0,0,1,1/1x1', 'gif', 400);

      testStatic(prefix, '-180,-80,180,80/0.5x2.6', 'png', 404);
    });
  });

  describe('autofit path', function () {
    describe('valid requests', function () {
      testStatic(
        prefix,
        'auto/256x256',
        'png',
        200,
        undefined,
        /image\/png/,
        '?path=10,10|20,20',
      );

      describe('different parameters', function () {
        testStatic(
          prefix,
          'auto/20x20',
          'png',
          200,
          2,
          /image\/png/,
          '?path=10,10|20,20',
        );
        testStatic(
          prefix,
          'auto/200x200',
          'png',
          200,
          3,
          /image\/png/,
          '?path=-10,-10|-20,-20',
        );
      });

      describe('encoded path', function () {
        testStatic(
          prefix,
          'auto/20x20',
          'png',
          200,
          2,
          /image\/png/,
          '?path=' + decodeURIComponent('enc:{{biGwvyGoUi@s_A|{@'),
        );
      });
    });

    describe('invalid requests return 4xx', function () {
      testStatic(prefix, 'auto/256x256', 'png', 400);
      testStatic(
        prefix,
        'auto/256x256',
        'png',
        400,
        undefined,
        undefined,
        '?path=invalid',
      );
      testStatic(
        prefix,
        'auto/2560x2560',
        'png',
        400,
        undefined,
        undefined,
        '?path=10,10|20,20',
      );
    });
  });
});