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package image
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestDecompose(t *testing.T) {
const digestSuffix = "@sha256:0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
for _, c := range []struct {
input string
registry, name, tag string
isTagged, hasRegistry bool
}{
{"#", "", "", "", false, false}, // Entirely invalid input
{ // Fully qualified docker.io, name-only input
"docker.io/library/busybox", "docker.io", "library/busybox", "latest", false, true,
},
{ // Fully qualified example.com, name-only input
"example.com/ns/busybox", "example.com", "ns/busybox", "latest", false, true,
},
{ // Unqualified single-name input
"busybox", "", "busybox", "latest", false, false,
},
{ // Unqualified namespaced input
"ns/busybox", "", "ns/busybox", "latest", false, false,
},
{ // name:tag
"example.com/ns/busybox:notlatest", "example.com", "ns/busybox", "notlatest", true, true,
},
{ // name@digest
// FIXME? .tag == "none"
"example.com/ns/busybox" + digestSuffix, "example.com", "ns/busybox", "none", false, true,
},
{ // name:tag@digest
"example.com/ns/busybox:notlatest" + digestSuffix, "example.com", "ns/busybox", "notlatest", true, true,
},
} {
parts, err := decompose(c.input)
if c.name == "" {
assert.Error(t, err, c.input)
} else {
assert.NoError(t, err, c.input)
assert.Equal(t, c.registry, parts.registry, c.input)
assert.Equal(t, c.name, parts.name, c.input)
assert.Equal(t, c.tag, parts.tag, c.input)
assert.Equal(t, c.isTagged, parts.isTagged, c.input)
assert.Equal(t, c.hasRegistry, parts.hasRegistry, c.input)
}
}
}
func TestImagePartsReferenceWithRegistry(t *testing.T) {
const digestSuffix = "@sha256:0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
for _, c := range []struct {
input string
withDocker, withNonDocker string
}{
{"example.com/ns/busybox", "", ""}, // Fully-qualified input is invalid.
{"busybox", "docker.io/library/busybox", "example.com/busybox"}, // Single-name input
{"ns/busybox", "docker.io/ns/busybox", "example.com/ns/busybox"}, // Namespaced input
{"ns/busybox:notlatest", "docker.io/ns/busybox:notlatest", "example.com/ns/busybox:notlatest"}, // name:tag
{"ns/busybox" + digestSuffix, "docker.io/ns/busybox" + digestSuffix, "example.com/ns/busybox" + digestSuffix}, // name@digest
{ // name:tag@digest
"ns/busybox:notlatest" + digestSuffix,
"docker.io/ns/busybox:notlatest" + digestSuffix, "example.com/ns/busybox:notlatest" + digestSuffix,
},
} {
parts, err := decompose(c.input)
require.NoError(t, err)
if c.withDocker == "" {
_, err := parts.referenceWithRegistry("docker.io")
assert.Error(t, err, c.input)
_, err = parts.referenceWithRegistry("example.com")
assert.Error(t, err, c.input)
} else {
ref, err := parts.referenceWithRegistry("docker.io")
require.NoError(t, err, c.input)
assert.Equal(t, c.withDocker, ref.String())
ref, err = parts.referenceWithRegistry("example.com")
require.NoError(t, err, c.input)
assert.Equal(t, c.withNonDocker, ref.String())
}
}
// Invalid registry value
parts, err := decompose("busybox")
require.NoError(t, err)
_, err = parts.referenceWithRegistry("invalid@domain")
assert.Error(t, err)
}
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