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ko-build/pkg/resolve/fixed_test.go
2019-03-22 15:02:13 -04:00

138 lines
3.8 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 resolve
import (
"fmt"
"testing"
"github.com/google/go-containerregistry/pkg/name"
v1 "github.com/google/go-containerregistry/pkg/v1"
"github.com/google/go-containerregistry/pkg/v1/random"
"github.com/google/ko/pkg/build"
"github.com/google/ko/pkg/publish"
)
var (
fixedBaseRepo, _ = name.NewRepository("gcr.io/asdf")
testImage, _ = random.Image(1024, 5)
)
func TestFixedPublish(t *testing.T) {
hex1 := "deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef"
hex2 := "baadf00dbaadf00dbaadf00dbaadf00dbaadf00dbaadf00dbaadf00dbaadf00d"
f := newFixedPublish(fixedBaseRepo, map[string]v1.Hash{
"foo": {
Algorithm: "sha256",
Hex: hex1,
},
"bar": {
Algorithm: "sha256",
Hex: hex2,
},
})
fooDigest, err := f.Publish(nil, "foo")
if err != nil {
t.Errorf("Publish(foo) = %v", err)
}
if got, want := fooDigest.String(), "gcr.io/asdf/foo@sha256:"+hex1; got != want {
t.Errorf("Publish(foo) = %q, want %q", got, want)
}
barDigest, err := f.Publish(nil, "bar")
if err != nil {
t.Errorf("Publish(bar) = %v", err)
}
if got, want := barDigest.String(), "gcr.io/asdf/bar@sha256:"+hex2; got != want {
t.Errorf("Publish(bar) = %q, want %q", got, want)
}
d, err := f.Publish(nil, "baz")
if err == nil {
t.Errorf("Publish(baz) = %v, want error", d)
}
}
func TestFixedBuild(t *testing.T) {
f := newFixedBuild(map[string]v1.Image{
"asdf": testImage,
})
if got, want := f.IsSupportedReference("asdf"), true; got != want {
t.Errorf("IsSupportedReference(asdf) = %v, want %v", got, want)
}
if got, err := f.Build("asdf"); err != nil {
t.Errorf("Build(asdf) = %v, want %v", err, testImage)
} else if got != testImage {
t.Errorf("Build(asdf) = %v, want %v", got, testImage)
}
if got, want := f.IsSupportedReference("blah"), false; got != want {
t.Errorf("IsSupportedReference(blah) = %v, want %v", got, want)
}
if got, err := f.Build("blah"); err == nil {
t.Errorf("Build(blah) = %v, want error", got)
}
}
type fixedBuild struct {
entries map[string]v1.Image
}
// newFixedBuild returns a build.Interface implementation that simply resolves
// particular references to fixed v1.Image objects
func newFixedBuild(entries map[string]v1.Image) build.Interface {
return &fixedBuild{entries}
}
// IsSupportedReference implements build.Interface
func (f *fixedBuild) IsSupportedReference(s string) bool {
_, ok := f.entries[s]
return ok
}
// Build implements build.Interface
func (f *fixedBuild) Build(s string) (v1.Image, error) {
if img, ok := f.entries[s]; ok {
return img, nil
}
return nil, fmt.Errorf("unsupported reference: %q", s)
}
type fixedPublish struct {
base name.Repository
entries map[string]v1.Hash
}
// newFixedPublish returns a publish.Interface implementation that simply
// resolves particular references to fixed name.Digest references.
func newFixedPublish(base name.Repository, entries map[string]v1.Hash) publish.Interface {
return &fixedPublish{base, entries}
}
// Publish implements publish.Interface
func (f *fixedPublish) Publish(_ v1.Image, s string) (name.Reference, error) {
h, ok := f.entries[s]
if !ok {
return nil, fmt.Errorf("unsupported importpath: %q", s)
}
d, err := name.NewDigest(fmt.Sprintf("%s/%s@%s", f.base, s, h))
if err != nil {
return nil, err
}
return &d, nil
}