Commit Graph

10 Commits

Author SHA1 Message Date
James Bardin 1a9c06d0f5 Revert "helper/schema: Implementation of the AsSingle mechanism"
This reverts commit 1987a92386.
2019-04-08 16:45:35 -04:00
Martin Atkins 35df450dc0 helper/resource: Preserve provider address when shimming to old state
It's important to preserve the provider address because during the destroy
phase of provider tests we'll use the references in the state to determine
which providers are required, and so without this attempts to override
the provider using the "provider" meta-argument can cause failures at
destroy time when the wrong provider gets selected.

(This is particularly acute in the google-beta provider tests because that
provider is _always_ used with provider = "google-beta" to override the
default behavior of using the normal "google" provider.)
2019-03-19 15:08:46 -07:00
Martin Atkins 1987a92386 helper/schema: Implementation of the AsSingle mechanism
The previous commit added a new flag to schema.Schema which is documented
to make a list with MaxItems: 1 be presented to Terraform Core as a single
value instead, giving a way to switch to non-list nested resources without
it being a breaking change for Terraform v0.11 users as long as it's done
prior to a provider's first v0.12-compatible release.

This is the implementation of that mechanism. It's intentionally
implemented as a suite of extra fixups rather than direct modifications to
existing shim code because we want to ensure that this has no effect
whatsoever on the result of a resource type that _isn't_ using AsSingle.

Although there is some small unit test coverage of the fixup steps here,
the primary testing for this is in the test provider since the integration
of all of these fixup steps in the correct order is the more important
result than any of the intermediate fixup steps.
2019-03-14 15:36:15 -07:00
James Bardin 041ed67e46 type names don't imply the resource mode
The addr type doesn't imply the resource mode, so data sources and
managed resources with the same type name could shim incorrectly.
2019-01-12 11:43:48 -05:00
James Bardin a7b399cb4c use actual schema.Resources for state shims
Provider tests often rely on checking values contained within sets, by
directly accessing their flatmapped representation. In order to provider
the test harness with the expected set hashes, the sets must be
generated by the schema.Resource itself.

During the test we now build a fixed map of the providers, which should
only contain schema.Provider instances, and pass them into each
TestStep. The individual schema.Resource instances can then be pulled
from the providers, and used to recreate the state from the cty.Value
returned by the core operations.
2019-01-10 12:20:03 -05:00
Martin Atkins b190d3b4f2 helper/resource: Shim back to old state must preserve schema version
We use a shim to convert from the new state model back to the old because
the provider test API is still using the old API throughout. However, the
shim was not preserving the schema version recorded in the new-style state
and so a round-trip through this shim would cause the schema versions to
all revert to zero.

This can cause trouble with the destroy phase of provider tests because
(for API legacy reasons) we round-trip from old state back to new again
before the destroy phase and thus causing the providers to try to upgrade
from state version zero even though the data was already latest, which
can cause errors because state upgrades are generally not idempotent.
2019-01-05 10:00:30 -08:00
James Bardin 7d296f752c don't add numeric indexes to resources with a count of 0 2018-12-05 13:41:53 -05:00
James Bardin ce5d7ff6d0 spelling 2018-11-13 18:41:53 -05:00
James Bardin 38163f2b37 use SimpleDiff and set "id" as RequiresReplace
Use the new SimpleDiff method of the provider so that the diff isn't
altered by ForceNew attributes.

Always set an "id" as RequiresReplace so core knows an instance will be
replaced, even if all ForceNew attributes are filtered out due to
ignore_changes.
2018-10-16 19:14:54 -07:00
James Bardin 0d4d572c39 start work on helper/resource test fixtures
The helper resource tests won't pass for now, as they use a
terraform.MockProvider which can't be used in the schema.Provider shims.
2018-10-16 19:14:11 -07:00