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ko-build/pkg/build/shared_test.go
Halvard Skogsrud 2ba8bb26d1
Enable setting the working dir for the go tool (#365)
This change adds a `WorkingDirectory` field to `options.BuildOptions`,
but doesn't expose this as a CLI flag. The default zero value means the
current working directory. The value is used as the directory for
executing `go` tool commands.

When embedding ko in other tools, it is sometimes necessary to set the
working directory for executing the `go` tool, instead of assuming the
current process working directory.

An example of where this is required from Skaffold:
https://github.com/GoogleContainerTools/skaffold/tree/master/examples/microservices

In this example, the working directory doesn't contain either `go.mod`
or any Go files. The `skaffold.yaml` configuration file specifies
a `context` field for each image, which is the directory where the `go`
tool can find package information.
2021-06-10 08:29:30 -07:00

97 lines
2.3 KiB
Go

/*
Copyright 2018 Google LLC All Rights Reserved.
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 build
import (
"context"
"testing"
"time"
"github.com/google/go-containerregistry/pkg/v1/random"
)
type slowbuild struct {
sleep time.Duration
}
// slowbuild implements Interface
var _ Interface = (*slowbuild)(nil)
func (sb *slowbuild) QualifyImport(ip string) (string, error) { return ip, nil }
func (sb *slowbuild) IsSupportedReference(string) error { return nil }
func (sb *slowbuild) Build(context.Context, string) (Result, error) {
time.Sleep(sb.sleep)
return random.Index(256, 8, 3)
}
func TestCaching(t *testing.T) {
duration := 100 * time.Millisecond
ip := "foo"
sb := &slowbuild{duration}
cb, _ := NewCaching(sb)
if err := cb.IsSupportedReference(ip); err != nil {
t.Errorf("ISR(%q) = (%v), wanted nil", err, ip)
}
previousDigest := "not-a-digest"
// Each iteration, we test that the first build is slow and subsequent
// builds are fast and return the same image. Then we invalidate the
// cache and iterate.
for idx := 0; idx < 3; idx++ {
start := time.Now()
img1, err := cb.Build(context.Background(), ip)
if err != nil {
t.Errorf("Build() = %v", err)
}
end := time.Now()
elapsed := end.Sub(start)
if elapsed < duration {
t.Errorf("Elapsed time %v, wanted >= %s", elapsed, duration)
}
d1 := digest(t, img1)
if d1 == previousDigest {
t.Errorf("Got same digest as previous iteration, wanted different: %v", d1)
}
previousDigest = d1
start = time.Now()
img2, err := cb.Build(context.Background(), ip)
if err != nil {
t.Errorf("Build() = %v", err)
}
end = time.Now()
elapsed = end.Sub(start)
if elapsed >= duration {
t.Errorf("Elapsed time %v, wanted < %s", elapsed, duration)
}
d2 := digest(t, img2)
if d1 != d2 {
t.Error("Got different images, wanted same")
}
cb.Invalidate(ip)
}
}