message: add another unit test case
diff: @@ -59,7 +59,7 @@ export function runEncryptionTests() {
  })
  test('sign-to-verify-fails', (t) => {
  - t.plan(2)
  + t.plan(3)
  const testString = 'all work and no play makes jack a dull boy'
  const failString = 'I should fail'
  @@ -72,6 +72,11 @@ export function runEncryptionTests() {
  sigObj = signECDSA(privateKey, testBuffer)
  t.false(verifyECDSA(Buffer.from(failString), sigObj.publicKey, sigObj.signature),
  'Buffer content should not be verified')
  +
  + const badPK = '0288580b020800f421d746f738b221d384f098e911b81939d8c94df89e74cba776'
  + sigObj = signECDSA(privateKey, testBuffer)
  + t.false(verifyECDSA(Buffer.from(failString), badPK, sigObj.signature),
  + 'Buffer content should not be verified')
  })
  test('bn-padded-to-64-bytes', (t) => {
  