Package fakeupd creates a fake .upd file with enough content to keep factory restore happy and to boot to a point where it can print a message.

Package integ contains integ tests run by mage.

Package vm contains utility functions used in integ tests with qemu VMs.

Return true if running on CI.

MockTB mocks testing.TB for test of CheckFormattingErrs.

Copied from testing package, minus the private method that makes it unimplementable (why?!) Used for easier testing of CheckFormattingErrs, etc.