compose/pkg/e2e/multiplatform_test.go
Nicolas De Loof b2e3deb18e test(e2e): testdata/<TestName>/ anchors each scenario's project files
Each scenario resolves its project files from testdata/<TestName>/ by
convention: standalone compose files in their native format, directly
runnable with docker compose -f, copied to a temporary directory so the
committed files are never mutated. Subtests map to nested directories.

Ownership is strictly one test per directory: a check fails the suite on
any testdata directory no test owns, which is what keeps this from
degrading into a catch-all fixtures directory — no sharing, no
leftovers after a rename.

The inline Compose() declaration is removed; the demonstrator scenarios
move their models to testdata, including the multi-file build context
of TestUpBuildUnchangedContext (compose.yaml + Dockerfile + marker).

Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
2026-08-18 16:49:56 +02:00

52 lines
2.2 KiB
Go

/*
Copyright 2026 Docker Compose CLI authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package e2e
import (
"testing"
)
func TestCreateLocalMultiPlatformImage(t *testing.T) {
// Regression test for https://github.com/docker/compose/issues/14007
// With the containerd image store, a local multi-platform image holding the
// requested non-native variant satisfies the default "missing" pull policy:
// compose must use it and not try to pull the (unpublished) tag.
s := NewScenario(t, "a local multi-platform image must satisfy the default missing pull policy for a non-native platform").
Requires(ContainerdImageStore)
// request the non-native platform, so the requested variant can't be the
// one a platform-less image inspect reports; the tag deliberately doesn't
// exist on any registry: resolving the requested platform from the local
// image is the only way to succeed
requested := s.NonNativePlatform()
const image = "compose-e2e-multiplatform-local-only:v1"
// `create` exercises the same image-resolution/pull-policy path as `up`,
// without requiring emulation to actually run the non-native binary
s.Env("REQUESTED_PLATFORM="+requested).
Defer(DockerCmd("image", "rm", image)).
Step("store the amd64 variant in the local store",
DockerCmd("pull", "-q", "--platform", "linux/amd64", "alpine:3.22")).
Step("store the arm64 variant in the local store",
DockerCmd("pull", "-q", "--platform", "linux/arm64", "alpine:3.22")).
Step("tag both variants under a tag that exists on no registry",
DockerCmd("tag", "alpine:3.22", image)).
Step("create uses the local variant for the requested platform without pulling",
ComposeCmd("create"),
OutputNotContains("Pulling"),
RunsOnPlatform("repro", requested))
}