At the moment, the upstream tests included in the package cannot be run due
to a missing dependency. Node-ava is the required dependency and none of its
dependencies are available either:

Dependencies:
NPM                                               Debian
ava (0.0.4)                                       None
├─ chalk (^0.5.1)                                 None
│  ├─ ansi-styles (^2.1.0)                        None
│  ├─ escape-string-regexp (^1.0.2)               None
│  ├─ has-ansi (^2.0.0)                           None
│  │  └─ ansi-regex (^2.0.0)                      None
│  ├─ strip-ansi (^3.0.0)                         None
│  │  └─ ansi-regex (^2.0.0)                      None
│  └─ supports-color (^2.0.0)                     None
│     └─ has-flag (^1.0.0)                        None
├─ each-async (^1.0.0)                            None
│  ├─ onetime (^1.0.0)                            None
│  └─ set-immediate-shim (^1.0.0)                 None
├─ log-symbols (^1.0.0)                           None
│  └─ chalk (^1.0.0)                              None
└─ minimist (^1.1.0)                              None
