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ko-build/pkg/build/future_test.go
2019-03-14 14:23:47 -04:00

76 lines
1.6 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 (
"testing"
v1 "github.com/google/go-containerregistry/pkg/v1"
"github.com/google/go-containerregistry/pkg/v1/random"
)
func makeImage() (v1.Image, error) {
return random.Image(256, 8)
}
func digest(t *testing.T, img v1.Image) string {
d, err := img.Digest()
if err != nil {
t.Fatalf("Digest() = %v", err)
}
return d.String()
}
func TestSameFutureSameImage(t *testing.T) {
f := newFuture(makeImage)
i1, err := f.Get()
if err != nil {
t.Errorf("Get() = %v", err)
}
d1 := digest(t, i1)
i2, err := f.Get()
if err != nil {
t.Errorf("Get() = %v", err)
}
d2 := digest(t, i2)
if d1 != d2 {
t.Errorf("Got different digests %s and %s", d1, d2)
}
}
func TestDiffFutureDiffImage(t *testing.T) {
f1 := newFuture(makeImage)
f2 := newFuture(makeImage)
i1, err := f1.Get()
if err != nil {
t.Errorf("Get() = %v", err)
}
d1 := digest(t, i1)
i2, err := f2.Get()
if err != nil {
t.Errorf("Get() = %v", err)
}
d2 := digest(t, i2)
if d1 == d2 {
t.Errorf("Got same digest %s, wanted different", d1)
}
}