Most subsystems are now created via the subsystem manager using the global
subsystem registrations.
The FGGlobals add_subsystem() and add_new_subsystem() methods have been removed
as the subsystem manager addition and creation function interface now exceeds
the functionality of these helper functions.
When starting at an airport, but not at parking or a runway, create
an empty AIFlightPlan, and ensure the AIManager code doesn’t choke on
empty FPs.
Add a unit-test which simulates the C172 tutorial reposition logic,
which is a little gnarly.
Avoid encoding test-data as strings, since this exceeds MSVC limits
on string literals, and tests don’t need to be relocatable anyway,
so we can just hard-code the source location into config.h
Re-work how position-init and ATC-manager work together to do
parking assignment and fallback (when the parking is unavailable).
Improve the logic for the reposition case, and teach ATC-manager about
reposition explicitly.
When the parking is unavailable, explicitly fall back to best-runway
selection in finalizePosition.
Add many additional position-init tests, to cover all of this.
Testcase for running posinit twice.
posinit sets various properties which it then reads, so there's
a possibility that it could write a value which causes unexpected
behaviour when run later.
Unclear if this should be a unit test or a system test, but it's
simple enough to be a unit test.
The test_suite/helpers directory has been renamed to test_suite/FGTestApi/ and
all the fgtest namespaces renamed to FGTestApi. The helper functions are now
also placed into either a setUp or tearDown namespace depending on their
function. And a new FGTestApi::PrivateAccessor::FDM namespace has been created
for holding friend classes used to access private or protected variables or
functions from solely within the test suite.
