Tests don't run

[austinabell]

Spec test vectors are not actually run, tested with multiple node versions and on another machine

> bls-key-management@0.0.1 test /Users/austinabell/development/github.com/CarlBeek/js-bls-key-management
> jest

 PASS  packages/key_derivation/test/tree_kdf_test.ts
  ✓ derive_master_SK() (1ms)
  ✓ derive_child_SK() (1ms)

Test Suites: 1 passed, 1 total
Tests:       2 passed, 2 total
Snapshots:   0 total
Time:        0.791s, estimated 2s
Ran all test suites.
/Users/austinabell/development/github.com/CarlBeek/js-bls-key-management/packages/key_derivation/test/tree_kdf_test.ts:34
            const test_parent_SK = new sjcl_1.default.bn(test['master_SK']);
                                   ^

TypeError: sjcl_1.default.bn is not a constructor
    at test_vectors.forEach (/Users/austinabell/development/github.com/CarlBeek/js-bls-key-management/packages/key_derivation/test/tree_kdf_test.ts:34:36)
    at Array.forEach (<anonymous>)
    at fs_1.default.readFile (/Users/austinabell/development/github.com/CarlBeek/js-bls-key-management/packages/key_derivation/test/tree_kdf_test.ts:33:22)
    at /Users/austinabell/development/github.com/CarlBeek/js-bls-key-management/node_modules/graceful-fs/graceful-fs.js:115:16
    at FSReqWrap.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:53:3)
npm ERR! Test failed.  See above for more details.