package dockerfile // import "github.com/docker/docker/builder/dockerfile" import ( "fmt" "runtime" "testing" "github.com/containerd/containerd/platforms" "github.com/docker/docker/builder" "github.com/docker/docker/image" ocispec "github.com/opencontainers/image-spec/specs-go/v1" "gotest.tools/assert" ) func getMockImageSource(getImageImage builder.Image, getImageLayer builder.ROLayer, getImageError error) *imageSources { return &imageSources{ byImageID: make(map[string]*imageMount), mounts: []*imageMount{}, getImage: func(name string, localOnly bool, platform *ocispec.Platform) (builder.Image, builder.ROLayer, error) { return getImageImage, getImageLayer, getImageError }, } } func getMockImageMount() *imageMount { return &imageMount{ image: nil, layer: nil, } } func TestAddScratchImageAddsToMounts(t *testing.T) { is := getMockImageSource(nil, nil, fmt.Errorf("getImage is not implemented")) im := getMockImageMount() // We are testing whether the imageMount is added to is.mounts assert.Equal(t, len(is.mounts), 0) is.Add(im, nil) assert.Equal(t, len(is.mounts), 1) } func TestAddFromScratchPopulatesPlatform(t *testing.T) { is := getMockImageSource(nil, nil, fmt.Errorf("getImage is not implemented")) platforms := []*ocispec.Platform{ { OS: "linux", Architecture: "amd64", }, { OS: "linux", Architecture: "arm64", Variant: "v8", }, } for i, platform := range platforms { im := getMockImageMount() assert.Equal(t, len(is.mounts), i) is.Add(im, platform) image, ok := im.image.(*image.Image) assert.Assert(t, ok) assert.Equal(t, image.OS, platform.OS) assert.Equal(t, image.Architecture, platform.Architecture) assert.Equal(t, image.Variant, platform.Variant) } } func TestAddFromScratchDoesNotModifyArgPlatform(t *testing.T) { is := getMockImageSource(nil, nil, fmt.Errorf("getImage is not implemented")) im := getMockImageMount() platform := &ocispec.Platform{ OS: "windows", Architecture: "amd64", } argPlatform := *platform is.Add(im, &argPlatform) // The way the code is written right now, this test // really doesn't do much except on Windows. assert.DeepEqual(t, *platform, argPlatform) } func TestAddFromScratchPopulatesPlatformIfNil(t *testing.T) { is := getMockImageSource(nil, nil, fmt.Errorf("getImage is not implemented")) im := getMockImageMount() is.Add(im, nil) image, ok := im.image.(*image.Image) assert.Assert(t, ok) expectedPlatform := platforms.DefaultSpec() if runtime.GOOS == "windows" { expectedPlatform.OS = "linux" } assert.Equal(t, expectedPlatform.OS, image.OS) assert.Equal(t, expectedPlatform.Architecture, image.Architecture) assert.Equal(t, expectedPlatform.Variant, image.Variant) } func TestImageSourceGetAddsToMounts(t *testing.T) { is := getMockImageSource(nil, nil, nil) _, err := is.Get("test", false, nil) assert.NilError(t, err) assert.Equal(t, len(is.mounts), 1) }