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package directory
import (
"context"
"os"
"path/filepath"
"testing"
_ "github.com/containers/image/v5/internal/testing/explicitfilepath-tmpdir"
"github.com/containers/image/v5/types"
digest "github.com/opencontainers/go-digest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestTransportName(t *testing.T) {
assert.Equal(t, "dir", Transport.Name())
}
func TestTransportParseReference(t *testing.T) {
testNewReference(t, Transport.ParseReference)
}
func TestTransportValidatePolicyConfigurationScope(t *testing.T) {
for _, scope := range []string{
"/etc",
"/this/does/not/exist",
} {
err := Transport.ValidatePolicyConfigurationScope(scope)
assert.NoError(t, err, scope)
}
for _, scope := range []string{
"relative/path",
"/double//slashes",
"/has/./dot",
"/has/dot/../dot",
"/trailing/slash/",
"/",
} {
err := Transport.ValidatePolicyConfigurationScope(scope)
assert.Error(t, err, scope)
}
}
func TestNewReference(t *testing.T) {
testNewReference(t, NewReference)
}
// testNewReference is a test shared for Transport.ParseReference and NewReference.
func testNewReference(t *testing.T, fn func(string) (types.ImageReference, error)) {
tmpDir := t.TempDir()
for _, path := range []string{
"/",
"/etc",
tmpDir,
"relativepath",
tmpDir + "/thisdoesnotexist",
} {
ref, err := fn(path)
require.NoError(t, err, path)
dirRef, ok := ref.(dirReference)
require.True(t, ok)
assert.Equal(t, path, dirRef.path, path)
}
_, err := fn(tmpDir + "/thisparentdoesnotexist/something")
assert.Error(t, err)
}
// refToTempDir creates a temporary directory and returns a reference to it.
func refToTempDir(t *testing.T) (types.ImageReference, string) {
tmpDir := t.TempDir()
ref, err := NewReference(tmpDir)
require.NoError(t, err)
return ref, tmpDir
}
func TestReferenceTransport(t *testing.T) {
ref, _ := refToTempDir(t)
assert.Equal(t, Transport, ref.Transport())
}
func TestReferenceStringWithinTransport(t *testing.T) {
ref, tmpDir := refToTempDir(t)
assert.Equal(t, tmpDir, ref.StringWithinTransport())
}
func TestReferenceDockerReference(t *testing.T) {
ref, _ := refToTempDir(t)
assert.Nil(t, ref.DockerReference())
}
func TestReferencePolicyConfigurationIdentity(t *testing.T) {
ref, tmpDir := refToTempDir(t)
assert.Equal(t, tmpDir, ref.PolicyConfigurationIdentity())
// A non-canonical path. Test just one, the various other cases are
// tested in explicitfilepath.ResolvePathToFullyExplicit.
ref, err := NewReference(tmpDir + "/.")
require.NoError(t, err)
assert.Equal(t, tmpDir, ref.PolicyConfigurationIdentity())
// "/" as a corner case.
ref, err = NewReference("/")
require.NoError(t, err)
assert.Equal(t, "/", ref.PolicyConfigurationIdentity())
}
func TestReferencePolicyConfigurationNamespaces(t *testing.T) {
ref, tmpDir := refToTempDir(t)
// We don't really know enough to make a full equality test here.
ns := ref.PolicyConfigurationNamespaces()
require.NotNil(t, ns)
assert.NotEmpty(t, ns)
assert.Equal(t, filepath.Dir(tmpDir), ns[0])
// Test with a known path which should exist. Test just one non-canonical
// path, the various other cases are tested in explicitfilepath.ResolvePathToFullyExplicit.
//
// It would be nice to test a deeper hierarchy, but it is not obvious what
// deeper path is always available in the various distros, AND is not likely
// to contains a symbolic link.
for _, path := range []string{"/usr/share", "/usr/share/./."} {
_, err := os.Lstat(path)
require.NoError(t, err)
ref, err := NewReference(path)
require.NoError(t, err)
ns := ref.PolicyConfigurationNamespaces()
require.NotNil(t, ns)
assert.Equal(t, []string{"/usr"}, ns)
}
// "/" as a corner case.
ref, err := NewReference("/")
require.NoError(t, err)
assert.Equal(t, []string{}, ref.PolicyConfigurationNamespaces())
}
func TestReferenceNewImage(t *testing.T) {
ref, _ := refToTempDir(t)
dest, err := ref.NewImageDestination(context.Background(), nil)
require.NoError(t, err)
defer dest.Close()
mFixture, err := os.ReadFile("../manifest/fixtures/v2s1.manifest.json")
require.NoError(t, err)
err = dest.PutManifest(context.Background(), mFixture, nil)
assert.NoError(t, err)
err = dest.Commit(context.Background(), nil) // nil unparsedToplevel is invalid, we don’t currently use the value
assert.NoError(t, err)
img, err := ref.NewImage(context.Background(), nil)
assert.NoError(t, err)
defer img.Close()
}
func TestReferenceNewImageNoValidManifest(t *testing.T) {
ref, _ := refToTempDir(t)
dest, err := ref.NewImageDestination(context.Background(), nil)
require.NoError(t, err)
defer dest.Close()
err = dest.PutManifest(context.Background(), []byte(`{"schemaVersion":1}`), nil)
assert.NoError(t, err)
err = dest.Commit(context.Background(), nil) // nil unparsedToplevel is invalid, we don’t currently use the value
assert.NoError(t, err)
_, err = ref.NewImage(context.Background(), nil)
assert.Error(t, err)
}
func TestReferenceNewImageSource(t *testing.T) {
ref, _ := refToTempDir(t)
src, err := ref.NewImageSource(context.Background(), nil)
assert.NoError(t, err)
defer src.Close()
}
func TestReferenceNewImageDestination(t *testing.T) {
ref, _ := refToTempDir(t)
dest, err := ref.NewImageDestination(context.Background(), nil)
assert.NoError(t, err)
defer dest.Close()
}
func TestReferenceDeleteImage(t *testing.T) {
ref, _ := refToTempDir(t)
err := ref.DeleteImage(context.Background(), nil)
assert.Error(t, err)
}
func TestReferenceManifestPath(t *testing.T) {
dhex := digest.Digest("sha256:0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")
ref, tmpDir := refToTempDir(t)
dirRef, ok := ref.(dirReference)
require.True(t, ok)
assert.Equal(t, tmpDir+"/manifest.json", dirRef.manifestPath(nil))
assert.Equal(t, tmpDir+"/"+dhex.Encoded()+".manifest.json", dirRef.manifestPath(&dhex))
}
func TestReferenceLayerPath(t *testing.T) {
const hex = "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
ref, tmpDir := refToTempDir(t)
dirRef, ok := ref.(dirReference)
require.True(t, ok)
assert.Equal(t, tmpDir+"/"+hex, dirRef.layerPath("sha256:"+hex))
}
func TestReferenceSignaturePath(t *testing.T) {
dhex := digest.Digest("sha256:0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")
ref, tmpDir := refToTempDir(t)
dirRef, ok := ref.(dirReference)
require.True(t, ok)
assert.Equal(t, tmpDir+"/signature-1", dirRef.signaturePath(0, nil))
assert.Equal(t, tmpDir+"/signature-10", dirRef.signaturePath(9, nil))
assert.Equal(t, tmpDir+"/"+dhex.Encoded()+".signature-1", dirRef.signaturePath(0, &dhex))
assert.Equal(t, tmpDir+"/"+dhex.Encoded()+".signature-10", dirRef.signaturePath(9, &dhex))
}
func TestReferenceVersionPath(t *testing.T) {
ref, tmpDir := refToTempDir(t)
dirRef, ok := ref.(dirReference)
require.True(t, ok)
assert.Equal(t, tmpDir+"/version", dirRef.versionPath())
}
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