layer_test.go

Documentation: github.com/google/go-containerregistry/internal/compare

     1  // Copyright 2019 Google LLC All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package compare
    16  
    17  import (
    18  	"testing"
    19  
    20  	"github.com/google/go-containerregistry/pkg/v1/random"
    21  	"github.com/google/go-containerregistry/pkg/v1/types"
    22  )
    23  
    24  func TestDifferentLayers(t *testing.T) {
    25  	a, err := random.Layer(100, types.DockerLayer)
    26  	if err != nil {
    27  		t.Fatal(err)
    28  	}
    29  	b, err := random.Layer(100, types.OCILayer)
    30  	if err != nil {
    31  		t.Fatal(err)
    32  	}
    33  
    34  	if err := Layers(a, b); err == nil {
    35  		t.Errorf("got nil err, should have something")
    36  	}
    37  }
    38  
    39  func TestEqualLayers(t *testing.T) {
    40  	a, err := random.Layer(100, types.DockerLayer)
    41  	if err != nil {
    42  		t.Fatal(err)
    43  	}
    44  
    45  	if err := Layers(a, a); err != nil {
    46  		t.Errorf("got err: %v", err)
    47  	}
    48  }
    49
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