AdvancedNow returns a now time.Now-compatible function that returns the time returned from oldNow advanced by the given Duration d.

CloneTestData clones the test data into a temporary directory and changes the working directory to the temporary directory.

Dump i to stdout using JSON.

LoadJSON unmarshals JSON for a test.

Must calls fatal in the given test if err is non-nil.

NewTestOutput creates a new initialized TestOutput instance.

PinnedNow returns a function that is compatible with time.Now that always returns the given t Time.

FixedTime is always at 2016-01-05T15:04:05-06:00.

TestOutput can be used in place of the normal monitor outut to provide a simpler way of testing monitor output.