share / sharedb / 1321

97%

master: 97%

Pull #338

travis-ci

Silence logger in tests

At the moment, the logger will log to console during tests, which is
noisy and undesirable.

This change adds a test setup file, which silences the logger by setting
all of its methods to no-ops.

This behaviour can be overridden with the `LOGGING` environment
variable:

```bash
LOGGING=true npm test
```

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