compose/pkg/api/api_test.go
Nicolas De Loof 1cc5120af8 Dedup pre_start hook images against service and each other
Address review feedback on pre_start hook image resolution:

1. GetDependentImages now skips a hook image equal to the service image
   (resolved via GetImageNameOrDefault), so `config --images` no longer
   prints a duplicate line and pullRequiredImages no longer schedules a
   redundant pull for it.

2. pullRequiredImages (up/create path) now dedups dependent images by
   reference via a `scheduled` set, so several hooks/services sharing the
   same missing image don't schedule concurrent redundant pulls. The hook
   pass moved to a helper (addPreStartHookPulls) to keep complexity in check.

3. The `pull` command no longer skips hook images under `pull_policy: build`.
   A hook image is a registry image that can't be built, so only `never`
   justifies skipping it — making `pull` consistent with the `up` path.

Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
2026-07-30 10:40:06 +02:00

110 lines
3 KiB
Go

/*
Copyright 2020 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 api
import (
"testing"
"github.com/compose-spec/compose-go/v2/types"
"gotest.tools/v3/assert"
)
func TestRunOptionsEnvironmentMap(t *testing.T) {
opts := RunOptions{
Environment: []string{
"FOO=BAR",
"ZOT=",
"QIX",
},
}
env := types.NewMappingWithEquals(opts.Environment)
assert.Equal(t, *env["FOO"], "BAR")
assert.Equal(t, *env["ZOT"], "")
assert.Check(t, env["QIX"] == nil)
}
func TestGetDependentImages(t *testing.T) {
const projectName = "demo"
tests := []struct {
name string
service types.ServiceConfig
expected []string
}{
{
name: "no hooks",
service: types.ServiceConfig{Image: "alpine:3.20"},
expected: nil,
},
{
name: "pre_start hook with explicit image",
service: types.ServiceConfig{
Image: "alpine:3.20",
PreStart: []types.ServiceHook{
{Image: "alpine:3.19", Command: types.ShellCommand{"echo", "init"}},
},
},
expected: []string{"alpine:3.19"},
},
{
name: "pre_start hook without image is ignored",
service: types.ServiceConfig{
Image: "alpine:3.20",
PreStart: []types.ServiceHook{
{Image: "busybox", Command: types.ShellCommand{"echo", "a"}},
{Command: types.ShellCommand{"echo", "b"}},
},
},
expected: []string{"busybox"},
},
{
name: "pre_start hook reusing the service image is ignored",
service: types.ServiceConfig{
Image: "alpine:3.20",
PreStart: []types.ServiceHook{
{Image: "alpine:3.20", Command: types.ShellCommand{"echo", "same"}},
{Image: "alpine:3.19", Command: types.ShellCommand{"echo", "other"}},
},
},
expected: []string{"alpine:3.19"},
},
{
name: "pre_start hook reusing the default (build) image name is ignored",
service: types.ServiceConfig{
Name: "web",
Build: &types.BuildConfig{Context: "."},
PreStart: []types.ServiceHook{
{Image: "demo-web", Command: types.ShellCommand{"echo", "same"}},
},
},
expected: nil,
},
{
name: "post_start and pre_stop hooks are not collected",
service: types.ServiceConfig{
Image: "alpine:3.20",
PostStart: []types.ServiceHook{{Image: "ignored:post", Command: types.ShellCommand{"echo"}}},
PreStop: []types.ServiceHook{{Image: "ignored:stop", Command: types.ShellCommand{"echo"}}},
},
expected: nil,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
assert.DeepEqual(t, GetDependentImages(tt.service, projectName), tt.expected)
})
}
}