jochen
be92762969
The live tests reached one shared bus and assert, read and remove the mesh's own objects by their fixed names, so packages run in parallel deleted what each other read and the suite passed only one package at a time; a red suite read as noise. internal/testbus starts a server per test, linked in at the nats-server release go.mod pins, and a test holds that pin to the catalogue's bus image and to the facts snapshot's bus when there is one, so the tests never run a bus the mesh does not. The waiter test read a timing (the most connections held at one look) and now reads the state it means (the fewest held across the wait). make check runs the packages in parallel under the race detector, with a timeout.
92 lines
3.2 KiB
Go
92 lines
3.2 KiB
Go
package link
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import (
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"fmt"
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"os"
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"strings"
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"testing"
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"time"
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"github.com/nats-io/nats.go"
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"github.com/novox/mesh-controller/internal/testbus"
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)
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// **A reader's own consumer gone is not a consumer lost**: every bucket watch and stream read-back
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// makes and deletes one, many a minute, and the bus says so each time (found running the controller
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// against a real bus: five a tick).
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func TestOnlyTheMeshsOwnConsumersAreSaidLost(t *testing.T) {
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deleted := func(stream, consumer string) bool {
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_, ok := ReadAdvisory("$JS.EVENT.ADVISORY.CONSUMER.DELETED."+stream+"."+consumer,
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[]byte(`{"type":"io.nats.jetstream.advisory.v1.consumer_action","stream":"`+stream+`","consumer":"`+consumer+`","action":"delete"}`))
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return ok
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}
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for _, c := range [][2]string{{"EVENTS", "controller"}, {"CONTROL", "controller"}, {"NODES", "anchor"},
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{"EVENTS", "anchor_shop"}, {"SEAT_NODE_BUILD_AGENT", "SEAT_NODE_BUILD_AGENT_worker"}} {
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if !deleted(c[0], c[1]) {
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t.Errorf("%s on %s deleted is not said", c[1], c[0])
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}
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}
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for _, c := range [][2]string{{"KV_mesh-controller_conditions", "381UWW5Y"}, {"EVENTS", "E7vVYoe6"},
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{"SEAT_NODE_BUILD_AGENT", "Rcnt6jla"}, {"ASSIGNMENTS", "x"}} {
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if deleted(c[0], c[1]) {
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t.Errorf("a reader's own consumer %s on %s is said lost", c[1], c[0])
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}
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}
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a, ok := ReadAdvisory("$JS.EVENT.ADVISORY.CONSUMER.MAX_DELIVERIES.EVENTS.anchor_shop",
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[]byte(`{"stream":"EVENTS","consumer":"anchor_shop","stream_seq":7,"deliveries":5}`))
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if !ok || a.Kind != AdvisoryMaxDeliveries || a.ID != "EVENTS.anchor_shop" ||
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a.Said != "how shop on anchor hears what it consumes handed message 7 over 5 times and gave up on it: "+
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"it will not be delivered again, and what it asked for was not done" {
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t.Fatalf("%+v", a)
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}
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}
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// **A question the bus refuses is answered as refused at once**, not after its timeout: against a
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// server whose only user may not publish where it asks.
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func TestNatsARefusedQuestionIsSaidAtOnce(t *testing.T) {
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url := os.Getenv("MESH_TEST_NATS_REFUSING")
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if url == "" {
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t.Skip("MESH_TEST_NATS_REFUSING unset: a server whose user may not publish mesh.seat.>")
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}
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conn, err := nats.Connect(url)
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if err != nil {
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t.Fatal(err)
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}
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defer conn.Close()
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started := time.Now()
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_, err = AskSeatTool(t.Context(), conn, "node-intrusion-prevention", "banned", "anchor", map[string]any{}, 10*time.Second)
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if err == nil || !strings.Contains(err.Error(), "the bus refused") {
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t.Fatalf("answered %v", err)
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}
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if took := time.Since(started); took > 3*time.Second {
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t.Fatalf("a refusal took %s to be known", took)
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}
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}
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// The refusal reaches whoever waits on that subject, and only them.
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func TestNatsARefusalReachesItsWaiter(t *testing.T) {
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url := testbus.URL(t)
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conn, err := nats.Connect(url)
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if err != nil {
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t.Fatal(err)
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}
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defer conn.Close()
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mine, stop := refusalsOf(conn, "mesh.seat.s.tool.v.anchor")
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defer stop()
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other, stopOther := refusalsOf(conn, "mesh.seat.s.tool.v.laptop")
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defer stopOther()
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conn.ErrorHandler()(conn, nil, fmt.Errorf("%w: Permissions Violation for Publish to %q",
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nats.ErrPermissionViolation, "mesh.seat.s.tool.v.anchor"))
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select {
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case <-mine:
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case <-time.After(time.Second):
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t.Fatal("the waiter was not told")
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}
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select {
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case <-other:
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t.Fatal("another subject's waiter was told")
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default:
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}
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}
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