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package image
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestDecompose(t *testing.T) {
const digestSuffix = "@sha256:0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
for _, c := range []struct {
input string
transport, registry, name, tag string
isTagged, hasRegistry bool
assembled string
}{
{"#", "", "", "", "", false, false, ""}, // Entirely invalid input
{ // Fully qualified docker.io, name-only input
"docker.io/library/busybox", "docker://", "docker.io", "library/busybox", "latest", false, true,
"docker.io/library/busybox:latest",
},
{ // Fully qualified example.com, name-only input
"example.com/ns/busybox", "docker://", "example.com", "ns/busybox", "latest", false, true,
"example.com/ns/busybox:latest",
},
{ // Unqualified single-name input
"busybox", "docker://", "", "busybox", "latest", false, false,
"busybox:latest",
},
{ // Unqualified namespaced input
"ns/busybox", "docker://", "", "ns/busybox", "latest", false, false,
"ns/busybox:latest",
},
{ // name:tag
"example.com/ns/busybox:notlatest", "docker://", "example.com", "ns/busybox", "notlatest", true, true,
"example.com/ns/busybox:notlatest",
},
{ // name@digest
// FIXME? .tag == "none"
"example.com/ns/busybox" + digestSuffix, "docker://", "example.com", "ns/busybox", "none", false, true,
// FIXME: this drops the digest and replaces it with an incorrect tag.
"example.com/ns/busybox:none",
},
{ // name:tag@digest
"example.com/ns/busybox:notlatest" + digestSuffix, "docker://", "example.com", "ns/busybox", "notlatest", true, true,
// FIXME: This drops the digest
"example.com/ns/busybox:notlatest",
},
} {
parts, err := decompose(c.input)
if c.transport == "" {
assert.Error(t, err, c.input)
} else {
assert.NoError(t, err, c.input)
assert.Equal(t, c.transport, parts.transport, 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)
assert.Equal(t, c.assembled, parts.assemble(), c.input)
}
}
}
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