Files
mesh-sdk/go/busstate/busstate_test.go
T
jschoubben c9fec158cb A3 sdk: a bundle uses its own object store through the runtime (ADR 0595 §2, §9, design 25 § 12.5)
stdio.BusState asks the runtime one buscalls method on the bundle's own bus state; package busstate makes the object
store's put, get, list, delete and fill by the store's local name (A3's request 1, distribution's incoming). Its test
takes the place of one merged into its neighbour, so mesh-sdk's unit count does not grow.

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig
2026-11-04 12:06:55 +01:00

103 lines
3.4 KiB
Go

package busstate
import (
"bufio"
"encoding/json"
"io"
"testing"
"time"
stdio "git.novox.be/novox/mesh-sdk/go"
"git.novox.be/novox/mesh-sdk/go/buscalls"
)
// A bundle keeps objects in its own object store through the runtime (ADR 0595 §2, §9; A3's request for distribution's
// incoming): each call is the runtime's method of buscalls, naming the store by its local name, and answers as the
// runtime answered; a method that is no bus-state call is refused before the runtime is asked.
func TestABundleKeepsObjectsThroughTheRuntime(t *testing.T) {
t.Setenv(stdio.ServedAs, "distribution")
inR, inW := io.Pipe()
outR, outW := io.Pipe()
type result struct {
what string
err error
got any
}
results := make(chan result, 8)
go func() {
_ = stdio.ServeOn("", []stdio.Tool{{Name: "keep", Run: func(map[string]any) (any, error) {
go func() {
in := ObjectsOf("incoming")
info, err := in.Put("t1.part0", []byte("hello"), "a part")
results <- result{"put", err, info.Digest}
data, err := in.Get("t1.part0")
results <- result{"get", err, string(data.Data)}
list, err := in.List()
results <- result{"list", err, len(list)}
results <- result{"delete", in.Delete("t1.part0"), nil}
fill, err := in.Fill()
results <- result{"fill", err, fill.MaxBytes}
_, err = stdio.BusState("mesh/state.get", nil)
results <- result{"refused", err, nil}
}()
return "started", nil
}}}, inR, outW)
}()
lines := bufio.NewScanner(outR)
next := func() map[string]any {
done := make(chan map[string]any, 1)
go func() {
if lines.Scan() {
var m map[string]any
_ = json.Unmarshal(lines.Bytes(), &m)
done <- m
}
}()
select {
case m := <-done:
return m
case <-time.After(3 * time.Second):
t.Fatal("the bundle said nothing")
return nil
}
}
send := func(m map[string]any) { b, _ := json.Marshal(m); _, _ = inW.Write(append(b, '\n')) }
send(map[string]any{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": map[string]any{"name": "keep"}})
answers := map[string]any{
buscalls.ObjectsPut: buscalls.ObjectInfo{Name: "t1.part0", Size: 5, Digest: "SHA-256=x"},
buscalls.ObjectsGet: buscalls.ObjectData{Info: buscalls.ObjectInfo{Name: "t1.part0"}, Data: []byte("hello")},
buscalls.ObjectsList: buscalls.ObjectsListed{Objects: []buscalls.ObjectInfo{{Name: "t1.part0"}}},
buscalls.ObjectsDelete: buscalls.Done{},
buscalls.ObjectsInfo: buscalls.Fill{Count: 0, MaxBytes: 20 << 30},
}
asked := map[string]map[string]any{}
for len(asked) < len(answers) {
m := next()
method, _ := m["method"].(string)
if method == "" {
continue // the tool's own answer
}
p, _ := m["params"].(map[string]any)
asked[method] = p
send(map[string]any{"jsonrpc": "2.0", "id": m["id"], "result": answers[method]})
}
want := map[string]any{"put": "SHA-256=x", "get": "hello", "list": 1, "delete": nil, "fill": uint64(20 << 30)}
for range 5 {
r := <-results
if r.err != nil || r.got != want[r.what] {
t.Errorf("%s answered %v, %v; want %v", r.what, r.got, r.err, want[r.what])
}
}
if r := <-results; r.err == nil {
t.Error("a call that is not on the bundle's bus state was asked of the runtime")
}
for method, p := range asked {
if p["objects"] != "incoming" {
t.Errorf("%s named the store %v, not its local name", method, p["objects"])
}
}
if p := asked[buscalls.ObjectsPut]; p["name"] != "t1.part0" || p["data"] != "aGVsbG8=" || p["description"] != "a part" {
t.Errorf("put asked %v", p)
}
}