BaseChecks creates a skima.Validator that represents the "monitor" field present in all heartbeat events.

CertToTempFile takes a certificate and returns an *os.File with a PEM encoded x.509 representation of that cert.

ErrorChecks checks the standard heartbeat error hierarchy, which should consist of a message (or a lookslike isdef that can match the message) and a type under the error key.

HelloWorldHandler is a handler for an http server that returns HelloWorldBody and a 200 OK status.

RedirectHandler redirects the paths at the keys in the redirectingPaths map to the locations in their values.

ResolveChecks returns a lookslike matcher for the 'resolve' fields.

RespondingTCPChecks creates a skima.Validator that represents the "tcp" field present in all heartbeat events that use a Tcp connection as part of their DialChain.

ServerPort takes an httptest.Server and returns its port as a uint16.

SimpleURLChecks returns a check for a simple URL with only a scheme, host, and port.

SizedResponseHandler responds with 200 to any request with a body exactly the size of the `bytes` argument, where each byte is the character 'x'.

SummaryChecks validates the "summary" field and its subfields.

TLSChecks validates the given x509 cert at the given position.

URLChecks returns a validator for the given URL's fields.

HelloWorldBody is the body of the HelloWorldHandler.