VCS detection was on by default, and blows up when the tests are run in
a copy of the Terraform source that is not a git repository, like - say
- during a Homebrew formula install, just to pick a random example. :)
It turned out the tests didn’t work as expected due to some missing
config in the `newMockLineServer` and a defer located in the wrong
location. All is good again now…
Each acceptance test step plays a Refresh, Plan, Apply for a given
config. This adds a follow up Plan and fails the test if it does not
come back empty. This will catch issues with perpetual, unresolvable
diffs that crop up here and there.
This is going to cause a lot of our existing acceptance tests to fail -
too many to roll into a single PR. I think the best plan is to land this
in master and then fix the failures (each of which should be catching a
legitimate provider bug) one by one until we get the provider suites
back to green.
Fixes#1409
Resource set hash calculation is a bit of a devil's bargain when it
comes to optional, computed attributes.
If you omit the optional, computed attribute from the hash function,
changing it in an existing config is not properly detected.
If you include the optional, computed attribute in the hash and do not
specify a value for it in the config, then you'll end up with a
perpetual, unresolvable diff.
We'll need to think about how to get the best of both worlds, here, but
for now I'm switching us to the latter and documenting the fact that
changing these attributes requires manual `terraform taint` to apply.
These bugs were found by additional check added in #1443
* Reversed nil err check meant that block devices were broken :(
* Fixing the err check revealed a few missed pointer derefs
* Unlike instances, ephemeral block devices do come back in
`BlockDeviceMappings` from `DescribeLaunchConfigurations` calls, so
we need to recognize them and filter them properly. Even though
they're not set as computed, I'm doing a `d.Set` since it doesn't
hurt and it gives us the benefit of basic drift detection.
Clint