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AGENTS.md documents 'Test unit: go test ./pkg/...' and 'E2E tests: go test -tags e2e ./pkg/e2e/'. Both statements were false: no file in pkg/e2e carried an e2e build constraint, so the -tags flag was a no-op and the 'unit' command actually launched the full e2e suite — requiring a Docker daemon and the locally built binary, creating and destroying containers, for up to 20 minutes. CI only avoided this by grepping e2e out of the package list (Dockerfile). Every *_test.go in pkg/e2e now carries //go:build e2e (merged with the existing !windows constraints), and the Makefile e2e targets pass the tag. The documented commands become true: - go test ./pkg/... -> pkg/e2e reports [no test files] - go test -tags e2e ./pkg/e2e -> runs the suite AGENTS.md now also states the daemon/binary prerequisites explicitly. Part of #14074 (A: the code misdescribes its own structure). Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
108 lines
4.1 KiB
Go
108 lines
4.1 KiB
Go
//go:build e2e
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/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package e2e
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import (
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"testing"
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)
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func TestScaleBasicCases(t *testing.T) {
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NewScenario(t, "scale must add and remove replicas to match the requested count, per service").
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Step("up honors deploy.replicas, including zero",
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ComposeCmd("up", "-d"),
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ServiceScale("back", 1),
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ServiceScale("db", 1),
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ServiceScale("front", 2),
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ServiceNotCreated("dbadmin")).
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Step("scale up a zero-replica service",
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ComposeCmd("scale", "dbadmin=2"),
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ServiceScale("dbadmin", 2)).
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Step("scale two services at once",
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ComposeCmd("scale", "front=3", "back=2"),
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ServiceScale("front", 3),
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ServiceScale("back", 2)).
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Step("scale down keeps the surviving replica untouched",
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ComposeCmd("scale", "dbadmin=1"),
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ServiceScale("dbadmin", 1)).
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Step("scale to zero removes every replica",
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ComposeCmd("scale", "dbadmin=0"),
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ServiceNotCreated("dbadmin")).
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Step("scale down two services at once",
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ComposeCmd("scale", "front=2", "back=1"),
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ReplicaNumbers("front", 1, 2),
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ServiceScale("back", 1))
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}
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func TestScaleWithDepsCases(t *testing.T) {
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NewScenario(t, "scale --no-deps must leave dependencies alone, while a plain scale reconciles them to the model").
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Step("up with an explicit dependency scale",
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ComposeCmd("up", "-d", "--scale", "db=2"),
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ServiceScale("db", 2)).
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Step("scale --no-deps does not touch the dependency's replicas",
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ComposeCmd("scale", "--no-deps", "back=2"),
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ServiceScale("back", 2),
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ServiceScale("db", 2)).
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Step("scale without --no-deps resets the dependency to the model's count",
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ComposeCmd("scale", "back=2"),
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ServiceScale("back", 2),
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ServiceScale("db", 1))
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}
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func TestScaleUpAndDownPreserveContainerNumber(t *testing.T) {
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NewScenario(t, "scaling down then up must reuse replica numbers instead of drifting").
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Step("up creates replicas #1 and #2",
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ComposeCmd("up", "-d", "--scale", "db=2", "db"),
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ReplicaNumbers("db", 1, 2)).
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Step("scale down removes replica #2",
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ComposeCmd("up", "-d", "--scale", "db=1", "db"),
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ReplicaNumbers("db", 1)).
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Step("scale up restores replica #2",
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ComposeCmd("up", "-d", "--scale", "db=2", "db"),
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ReplicaNumbers("db", 1, 2))
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}
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func TestScaleDownRemovesObsolete(t *testing.T) {
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NewScenario(t, "scale down must keep the up-to-date replicas, not the lowest numbers").
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Step("up creates replica #1",
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ComposeCmd("up", "-d", "db"),
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ReplicaNumbers("db", 1)).
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Step("scale up with a changed config adds replica #2",
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ComposeCmd("up", "-d", "--scale", "db=2", "db").WithEnv("MAYBE=value"),
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ReplicaNumbers("db", 1, 2)).
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Step("scale down under the same config keeps replica #1",
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ComposeCmd("up", "-d", "--scale", "db=1", "db").WithEnv("MAYBE=value"),
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ReplicaNumbers("db", 1))
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}
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func TestScaleDownNoRecreate(t *testing.T) {
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s := NewScenario(t, "up --no-recreate must scale up with fresh replicas and scale down by dropping the stale ones")
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s.Defer(DockerCmd("image", "rm", "-f", s.Project()+"-test")).
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Step("build and start two replicas of the first image",
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ComposeCmd("build", "--build-arg", "FOO=test")).
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Step("up starts replicas #1 and #2",
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ComposeCmd("up", "-d", "--scale", "test=2"),
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ReplicaNumbers("test", 1, 2)).
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Step("rebuild changes the image the service should run",
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ComposeCmd("build", "--build-arg", "FOO=updated")).
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Step("up --no-recreate adds fresh replicas without touching stale ones",
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ComposeCmd("up", "-d", "--scale", "test=4", "--no-recreate"),
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ReplicaNumbers("test", 1, 2, 3, 4)).
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Step("scale down drops the stale replicas and keeps the up-to-date ones",
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ComposeCmd("up", "-d", "--scale", "test=2"),
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ReplicaNumbers("test", 3, 4))
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}
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