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package llb
import (
"bytes"
"context"
"fmt"
"testing"
"github.com/containerd/containerd/platforms"
"github.com/moby/buildkit/solver/pb"
digest "github.com/opencontainers/go-digest"
"github.com/stretchr/testify/require"
"golang.org/x/sync/errgroup"
)
func TestDefinitionEquivalence(t *testing.T) {
for _, tc := range []struct {
name string
state State
}{
{"scratch", Scratch()},
{"image op", Image("ref")},
{"exec op", Image("ref").Run(Shlex("args")).Root()},
{"local op", Local("name")},
{"git op", Git("remote", "ref")},
{"http op", HTTP("url")},
{"file op", Scratch().File(Mkdir("foo", 0600).Mkfile("foo/bar", 0600, []byte("data")).Copy(Scratch(), "src", "dst"))},
{"platform constraint", Image("ref", LinuxArm64)},
{"mount", Image("busybox").Run(Shlex(`sh -c "echo foo > /out/foo"`)).AddMount("/out", Scratch())},
} {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
ctx := context.TODO()
def, err := tc.state.Marshal(context.TODO())
require.NoError(t, err)
op, err := NewDefinitionOp(def.ToPB())
require.NoError(t, err)
err = op.Validate(ctx, nil)
require.NoError(t, err)
st2 := NewState(op.Output())
def2, err := st2.Marshal(context.TODO())
require.NoError(t, err)
require.Equal(t, len(def.Def), len(def2.Def))
require.Equal(t, len(def.Metadata), len(def2.Metadata))
for i := 0; i < len(def.Def); i++ {
res := bytes.Compare(def.Def[i], def2.Def[i])
require.Equal(t, res, 0)
}
for dgst := range def.Metadata {
require.Equal(t, def.Metadata[dgst], def2.Metadata[dgst])
}
expectedPlatform, err := tc.state.GetPlatform(ctx)
require.NoError(t, err)
actualPlatform, err := st2.GetPlatform(ctx)
require.NoError(t, err)
if expectedPlatform == nil && actualPlatform != nil {
defaultPlatform := platforms.Normalize(platforms.DefaultSpec())
expectedPlatform = &defaultPlatform
}
require.Equal(t, expectedPlatform, actualPlatform)
})
}
}
func TestDefinitionInputCache(t *testing.T) {
src := HTTP("url")
stA := Scratch().Run(
Shlex("A"),
AddMount("/mnt", src),
)
stB := Scratch().Run(
Shlex("B"),
AddMount("/mnt", src),
)
st := Scratch().Run(
Shlex("args"),
AddMount("/a", stA.Root()),
AddMount("/a2", stA.GetMount("/mnt")),
AddMount("/b", stB.Root()),
AddMount("/b2", stB.GetMount("/mnt")),
).Root()
ctx := context.TODO()
def, err := st.Marshal(context.TODO())
require.NoError(t, err)
op, err := NewDefinitionOp(def.ToPB())
require.NoError(t, err)
err = op.Validate(ctx, nil)
require.NoError(t, err)
st2 := NewState(op.Output())
marshalDef := &Definition{
Metadata: make(map[digest.Digest]pb.OpMetadata, 0),
}
constraints := &Constraints{}
smc := newSourceMapCollector()
// verify the expected number of vertexes gets marshalled
vertexCache := make(map[Vertex]struct{})
_, err = marshal(ctx, st2.Output().Vertex(ctx, constraints), marshalDef, smc, map[digest.Digest]struct{}{}, vertexCache, constraints)
require.NoError(t, err)
// 1 exec + 2x2 mounts from stA and stB + 1 src = 6 vertexes
require.Equal(t, 6, len(vertexCache))
// make sure that walking vertices in parallel doesn't cause panic
var all []RunOption
for i := 0; i < 100; i++ {
var sts []RunOption
for j := 0; j < 100; j++ {
sts = append(sts, AddMount("/mnt", Scratch().Run(Shlex(fmt.Sprintf("%d-%d", i, j))).Root()))
}
all = append(all, AddMount("/mnt", Scratch().Run(append([]RunOption{Shlex("args")}, sts...)...).Root()))
}
def, err = Scratch().Run(append([]RunOption{Shlex("args")}, all...)...).Root().Marshal(context.TODO())
require.NoError(t, err)
op, err = NewDefinitionOp(def.ToPB())
require.NoError(t, err)
require.NoError(t, testParallelWalk(context.Background(), op.Output()))
}
func TestDefinitionNil(t *testing.T) {
// should be an error, not a panic
_, err := NewDefinitionOp(nil)
require.Error(t, err)
}
func testParallelWalk(ctx context.Context, out Output) error {
eg, egCtx := errgroup.WithContext(ctx)
for _, o := range out.Vertex(ctx, nil).Inputs() {
o := o
eg.Go(func() error {
return testParallelWalk(egCtx, o)
})
}
return eg.Wait()
}
|
