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ce286795e0183d67f1bb8e883fcaed67e53a0ecd
mesh-delivery/contracts/go/seats/nodebuildimage/contract_test.go
T
jschoubben ab9b8d3471 CT5: the build seats accept step on check and on delivery, and run on check, each kind by its stream; regenerated 
A kind's subject is <stream>.<kind>: check.step, delivery.step (a recovery's steps, the
runner alone) and check.run (node-build-go). Regenerated with seatgen at mesh-catalog
b5aebbbe (GEN4); its fixture rows for the three subjects fail to compile against the
contract before.

Builds: design 47 G §415, §455, §22, §206, §86, §338.

Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ
2026-11-11 11:29:13 +01:00

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// Code generated by seatgen from the seat definitions; DO NOT EDIT.
package nodebuildimage
import (
"encoding/json"
"reflect"
"regexp"
"testing"
)
// TestFixtures reads every fixture of seats/node-build-image/fixtures: each decodes into its type, a field the type does not
// know is dropped (ADR 0608 §6), and it reads back as its wire says; each subject named is the contract's.
func TestFixtures(t *testing.T) {
cases := []struct {
name, subject, given, wire string
decode func([]byte) (any, error)
subjectIs *regexp.Regexp
}{
{name: "a lint step ended passed on its node", subject: "mesh.seat.node-build-image.event.step-ended.ace", given: "{\"artifact\":\"nats:program\",\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"ended\":\"2026-11-10T10:02:00Z\",\"fingerprint\":\"fp-0123\",\"id\":\"m2kx9a1b3c4d5e\",\"module\":\"nats\",\"node\":\"ace\",\"outcome\":\"passed\",\"pipeline\":\"main.12.nats\",\"started\":\"2026-11-10T10:00:00Z\",\"step\":\"lint\",\"v\":1}", wire: "{\"artifact\":\"nats:program\",\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"ended\":\"2026-11-10T10:02:00Z\",\"fingerprint\":\"fp-0123\",\"id\":\"m2kx9a1b3c4d5e\",\"module\":\"nats\",\"node\":\"ace\",\"outcome\":\"passed\",\"pipeline\":\"main.12.nats\",\"started\":\"2026-11-10T10:00:00Z\",\"step\":\"lint\",\"v\":1}",
decode: func(b []byte) (any, error) { var v StepEndedEvent; err := json.Unmarshal(b, &v); return v, err }, subjectIs: regexp.MustCompile("^mesh\\.seat\\.node-build-image\\.event\\.step-ended\\.[^.*> ]+$")},
{name: "a lint step that could not run, naming the part not heard", subject: "mesh.seat.node-build-image.event.step-ended.g14", given: "{\"artifact\":\"nats:program\",\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"fingerprint\":\"fp-0123\",\"id\":\"m2kx9a1b3c4d5f\",\"module\":\"nats\",\"node\":\"g14\",\"outcome\":\"could not run\",\"output-object\":\"mesh-build-go_sent-objects/m2kx9a1b3c4d5f\",\"pipeline\":\"main.12.nats\",\"said\":\"the sandbox could not fetch novox/mesh-sdk\",\"step\":\"lint\",\"v\":1}", wire: "{\"artifact\":\"nats:program\",\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"fingerprint\":\"fp-0123\",\"id\":\"m2kx9a1b3c4d5f\",\"module\":\"nats\",\"node\":\"g14\",\"outcome\":\"could not run\",\"output-object\":\"mesh-build-go_sent-objects/m2kx9a1b3c4d5f\",\"pipeline\":\"main.12.nats\",\"said\":\"the sandbox could not fetch novox/mesh-sdk\",\"step\":\"lint\",\"v\":1}",
decode: func(b []byte) (any, error) { var v StepEndedEvent; err := json.Unmarshal(b, &v); return v, err }, subjectIs: regexp.MustCompile("^mesh\\.seat\\.node-build-image\\.event\\.step-ended\\.[^.*> ]+$")},
{name: "a running step", subject: "", given: "{\"id\":\"a1b2\",\"node\":\"ace\",\"started\":\"2026-11-05T10:00:00Z\",\"state\":\"running\",\"tool\":\"build\",\"v\":1}", wire: "{\"id\":\"a1b2\",\"node\":\"ace\",\"started\":\"2026-11-05T10:00:00Z\",\"state\":\"running\",\"tool\":\"build\",\"v\":1}",
decode: func(b []byte) (any, error) { var v StepsByNodeIDValue; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "a paused node", subject: "", given: "{\"at\":\"2026-11-05T10:00:00Z\",\"by\":\"operator@shanks\",\"paused\":true,\"v\":1}", wire: "{\"at\":\"2026-11-05T10:00:00Z\",\"by\":\"operator@shanks\",\"paused\":true,\"v\":1}",
decode: func(b []byte) (any, error) {
var v PausesByPausedNodeValue
err := json.Unmarshal(b, &v)
return v, err
}, subjectIs: nil},
{name: "a node's capacity", subject: "", given: "{\"configured\":2,\"effective\":2,\"v\":1,\"why\":\"the configured steps fit the cores\"}", wire: "{\"configured\":2,\"effective\":2,\"v\":1,\"why\":\"the configured steps fit the cores\"}",
decode: func(b []byte) (any, error) {
var v PausesByCapacityNodeValue
err := json.Unmarshal(b, &v)
return v, err
}, subjectIs: nil},
{name: "a node's toolchain", subject: "", given: "{\"language\":\"go\",\"recipe\":\"1\",\"v\":1,\"version\":\"1.26.0\"}", wire: "{\"language\":\"go\",\"recipe\":\"1\",\"v\":1,\"version\":\"1.26.0\"}",
decode: func(b []byte) (any, error) {
var v ToolchainsByNodeLanguageValue
err := json.Unmarshal(b, &v)
return v, err
}, subjectIs: nil},
{name: "a build ask", subject: "mesh.seat.node-build-image.accept.delivery", given: "{\"asker\":\"mesh-delivery-builder\",\"build\":{\"artifacts\":[{\"artifact\":\"go\"}],\"module\":\"nats\"},\"id\":\"a1b2\",\"kind\":\"build\",\"language\":\"go\"}", wire: "{\"asker\":\"mesh-delivery-builder\",\"build\":{\"artifacts\":[{\"artifact\":\"go\"}],\"module\":\"nats\"},\"id\":\"a1b2\",\"kind\":\"build\",\"language\":\"go\"}",
decode: func(b []byte) (any, error) { var v DeliveryAccept; err := json.Unmarshal(b, &v); return v, err }, subjectIs: regexp.MustCompile("^mesh\\.seat\\.node-build-image\\.accept\\.delivery$")},
{name: "a step ended on a transport fault, given again by the bus", subject: "", given: "{\"again-at\":\"2026-11-05T10:01:30Z\",\"ended\":\"2026-11-05T10:00:30Z\",\"id\":\"a1b2\",\"node\":\"ace\",\"passing\":true,\"reason\":\"fetching the commit: kex_exchange_identification: read: Connection reset by peer\",\"run\":1,\"started\":\"2026-11-05T10:00:00Z\",\"state\":\"again\",\"tool\":\"build\",\"v\":1}", wire: "{\"again-at\":\"2026-11-05T10:01:30Z\",\"ended\":\"2026-11-05T10:00:30Z\",\"id\":\"a1b2\",\"node\":\"ace\",\"passing\":true,\"reason\":\"fetching the commit: kex_exchange_identification: read: Connection reset by peer\",\"run\":1,\"started\":\"2026-11-05T10:00:00Z\",\"state\":\"again\",\"tool\":\"build\",\"v\":1}",
decode: func(b []byte) (any, error) { var v StepsByNodeIDValue; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "an ask dropped by the caller that no longer waits", subject: "", given: "{\"at\":\"2026-11-05T10:00:00Z\",\"by\":\"mesh-delivery-builder\",\"v\":1,\"why\":\"a newer fingerprint supersedes it\"}", wire: "{\"at\":\"2026-11-05T10:00:00Z\",\"by\":\"mesh-delivery-builder\",\"v\":1,\"why\":\"a newer fingerprint supersedes it\"}",
decode: func(b []byte) (any, error) { var v PausesByDroppedIDValue; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "a lint step ask of the runner with the names", subject: "mesh.seat.node-build-image.accept.check.step", given: "{\"asker\":\"mesh-delivery-pipeline\",\"at\":\"2026-11-10T10:00:00Z\",\"id\":\"m2kx9a1b3c4d5e\",\"kind\":\"step\",\"language\":\"image\",\"step\":{\"artifact\":\"nats:program\",\"branch\":\"main\",\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"fetch\":{\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"repository\":\"novox/mesh-catalog\"},\"fingerprint\":\"fp-0123\",\"module\":\"nats\",\"names\":{\"branches\":[\"main\"],\"modules\":[\"nats\",\"mesh-sdk\"],\"repositories\":[\"novox/mesh-catalog\",\"novox/mesh-sdk\"]},\"pipeline\":\"main.12.nats\",\"revision\":12,\"step\":\"lint\"},\"v\":1}", wire: "{\"asker\":\"mesh-delivery-pipeline\",\"at\":\"2026-11-10T10:00:00Z\",\"id\":\"m2kx9a1b3c4d5e\",\"kind\":\"step\",\"language\":\"image\",\"step\":{\"artifact\":\"nats:program\",\"branch\":\"main\",\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"fetch\":{\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"repository\":\"novox/mesh-catalog\"},\"fingerprint\":\"fp-0123\",\"module\":\"nats\",\"names\":{\"branches\":[\"main\"],\"modules\":[\"nats\",\"mesh-sdk\"],\"repositories\":[\"novox/mesh-catalog\",\"novox/mesh-sdk\"]},\"pipeline\":\"main.12.nats\",\"revision\":12,\"step\":\"lint\"},\"v\":1}",
decode: func(b []byte) (any, error) { var v CheckStepAccept; err := json.Unmarshal(b, &v); return v, err }, subjectIs: regexp.MustCompile("^mesh\\.seat\\.node-build-image\\.accept\\.check\\.step$")},
{name: "a recovery's step ask of the runner, on the stream delivery", subject: "mesh.seat.node-build-image.accept.delivery.step", given: "{\"asker\":\"mesh-delivery-pipeline\",\"at\":\"2026-11-10T10:00:00Z\",\"id\":\"m2kx9a1b3c4d5e\",\"kind\":\"step\",\"language\":\"image\",\"step\":{\"artifact\":\"nats:program\",\"branch\":\"main\",\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"fetch\":{\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"repository\":\"novox/mesh-catalog\"},\"fingerprint\":\"fp-0123\",\"module\":\"nats\",\"names\":{\"branches\":[\"main\"],\"modules\":[\"nats\",\"mesh-sdk\"],\"repositories\":[\"novox/mesh-catalog\",\"novox/mesh-sdk\"]},\"pipeline\":\"main.12.nats\",\"revision\":12,\"step\":\"lint\"},\"v\":1}", wire: "{\"asker\":\"mesh-delivery-pipeline\",\"at\":\"2026-11-10T10:00:00Z\",\"id\":\"m2kx9a1b3c4d5e\",\"kind\":\"step\",\"language\":\"image\",\"step\":{\"artifact\":\"nats:program\",\"branch\":\"main\",\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"fetch\":{\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"repository\":\"novox/mesh-catalog\"},\"fingerprint\":\"fp-0123\",\"module\":\"nats\",\"names\":{\"branches\":[\"main\"],\"modules\":[\"nats\",\"mesh-sdk\"],\"repositories\":[\"novox/mesh-catalog\",\"novox/mesh-sdk\"]},\"pipeline\":\"main.12.nats\",\"revision\":12,\"step\":\"lint\"},\"v\":1}",
decode: func(b []byte) (any, error) { var v DeliveryStepAccept; err := json.Unmarshal(b, &v); return v, err }, subjectIs: regexp.MustCompile("^mesh\\.seat\\.node-build-image\\.accept\\.delivery\\.step$")},
{name: "an artifact's detected steps", subject: "", given: "{\"at\":\"2026-11-10T10:00:00Z\",\"fingerprint\":\"fp-0123\",\"steps\":[{\"step\":\"lint\"},{\"packages\":[\"./modules/nats/a\"],\"step\":\"unit\"}],\"v\":1}", wire: "{\"at\":\"2026-11-10T10:00:00Z\",\"fingerprint\":\"fp-0123\",\"steps\":[{\"step\":\"lint\"},{\"packages\":[\"./modules/nats/a\"],\"step\":\"unit\"}],\"v\":1}",
decode: func(b []byte) (any, error) {
var v DetectedStepsByModuleArtifactValue
err := json.Unmarshal(b, &v)
return v, err
}, subjectIs: nil},
{name: "drop names the ask and why", subject: "", given: "{\"by\":\"mesh-delivery-builder\",\"id\":\"a1b2\",\"why\":\"a newer fingerprint supersedes it\"}", wire: "{\"by\":\"mesh-delivery-builder\",\"id\":\"a1b2\",\"why\":\"a newer fingerprint supersedes it\"}",
decode: func(b []byte) (any, error) { var v DropInput; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "kept-artifact asks", subject: "", given: "{\"digest\":\"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd\",\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\"}", wire: "{\"digest\":\"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd\",\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\"}",
decode: func(b []byte) (any, error) { var v KeptArtifactInput; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "kept-artifact answers where the bytes are", subject: "", given: "{\"digest\":\"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd\",\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\",\"object\":\"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd\",\"size\":18874368,\"store\":\"mesh-build-go-kept\"}", wire: "{\"digest\":\"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd\",\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\",\"object\":\"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd\",\"size\":18874368,\"store\":\"mesh-build-go-kept\"}",
decode: func(b []byte) (any, error) { var v KeptArtifactAnswer; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "kept-artifact refuses a module that is claims no oci-artifact-registry", subject: "", given: "{\"fp\":\"src2:aaaaaaaa\",\"module\":\"mesh-delivery-gate\",\"refused\":\"claims no oci-artifact-registry\",\"words\":\"mesh-delivery-gate claims no oci-artifact-registry: its build is fetched from the store\"}", wire: "{\"fp\":\"src2:aaaaaaaa\",\"module\":\"mesh-delivery-gate\",\"refused\":\"claims no oci-artifact-registry\",\"words\":\"mesh-delivery-gate claims no oci-artifact-registry: its build is fetched from the store\"}",
decode: func(b []byte) (any, error) { var v KeptArtifactAnswer; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "kept-artifact refuses a build it no longer keeps", subject: "", given: "{\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\",\"refused\":\"not kept\",\"words\":\"this node keeps no build of artifact-store at src2:1480985e\"}", wire: "{\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\",\"refused\":\"not kept\",\"words\":\"this node keeps no build of artifact-store at src2:1480985e\"}",
decode: func(b []byte) (any, error) { var v KeptArtifactAnswer; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "kept-artifact refuses a build kept under another digest", subject: "", given: "{\"digest\":\"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\",\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\",\"refused\":\"digest differs\",\"words\":\"artifact-store at src2:1480985e is kept as eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\"}", wire: "{\"digest\":\"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\",\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\",\"refused\":\"digest differs\",\"words\":\"artifact-store at src2:1480985e is kept as eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\"}",
decode: func(b []byte) (any, error) { var v KeptArtifactAnswer; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "kept-artifact answers an error, never none", subject: "", given: "{\"error\":\"the kept builds could not be read\",\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\"}", wire: "{\"error\":\"the kept builds could not be read\",\"fp\":\"src2:1480985e\",\"module\":\"artifact-store\"}",
decode: func(b []byte) (any, error) { var v KeptArtifactAnswer; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "steps asks an artifact's pipeline steps at a commit", subject: "", given: "{\"artifact\":\"nats:program\",\"fetch\":{\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"repository\":\"novox/mesh-catalog\"},\"fingerprint\":\"fp-0123\",\"module\":\"nats\"}", wire: "{\"artifact\":\"nats:program\",\"fetch\":{\"commit\":\"0123456789abcdef0123456789abcdef01234567\",\"repository\":\"novox/mesh-catalog\"},\"fingerprint\":\"fp-0123\",\"module\":\"nats\"}",
decode: func(b []byte) (any, error) { var v StepsInput; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
{name: "steps answers lint and unit tests", subject: "", given: "{\"artifact\":\"nats:program\",\"fingerprint\":\"fp-0123\",\"steps\":[{\"step\":\"lint\"},{\"packages\":[\"./modules/nats\"],\"step\":\"unit\"}]}", wire: "{\"artifact\":\"nats:program\",\"fingerprint\":\"fp-0123\",\"steps\":[{\"step\":\"lint\"},{\"packages\":[\"./modules/nats\"],\"step\":\"unit\"}]}",
decode: func(b []byte) (any, error) { var v StepsAnswer; err := json.Unmarshal(b, &v); return v, err }, subjectIs: nil},
}
for _, c := range cases {
v, err := c.decode([]byte(c.given))
if err != nil {
t.Errorf("%s: does not decode: %v", c.name, err)
continue
}
back, err := json.Marshal(v)
if err != nil {
t.Errorf("%s: does not encode: %v", c.name, err)
continue
}
var got, want any
if err := json.Unmarshal(back, &got); err != nil {
t.Fatal(err)
}
if err := json.Unmarshal([]byte(c.wire), &want); err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(got, want) {
t.Errorf("%s: reads back as %s, want %s", c.name, back, c.wire)
}
if c.subjectIs != nil && !c.subjectIs.MatchString(c.subject) {
t.Errorf("%s: subject %q is not the contract's %s", c.name, c.subject, c.subjectIs)
}
}
}
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