jochen
76b63744e6
Modules talk over the bus. The power module's bundle puts each fresh reading of its own sampler in its state draw, keyed by the machine; the bar's block shows that state, which the bar's bundle watches under the read the mesh grants it. A new catalogue check refuses a module naming another module's path under /run or /var/lib.
62 lines
1.8 KiB
Go
62 lines
1.8 KiB
Go
package main
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import (
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"errors"
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"strings"
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"testing"
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"time"
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)
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// Defends novox/hq ADR 0260: the draw reaches the bar over the bus, as this module's state keyed by the
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// machine, and only a fresh reading that measured something is put.
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func TestAFreshReadingIsPutForThisMachine(t *testing.T) {
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m := tree(t, nil)
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now := time.Date(2026, 10, 8, 12, 0, 10, 0, time.UTC)
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w := 18.2
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if err := m.Publish(Draw{Machine: &w}.Reading(now.Add(-5 * time.Second))); err != nil {
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t.Fatal(err)
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}
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var key string
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var value Reading
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said, err := m.shareDraw("laptop", now, func(k string, v any) error { key, value = k, v.(Reading); return nil })
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if err != nil || key != "laptop" || value.Text != "18.2 W machine" || value.Measures != "machine" ||
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!strings.HasPrefix(said, "put ") {
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t.Fatalf("%q %v: put %q %+v", said, err, key, value)
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}
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}
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func TestAStaleOrEmptyReadingIsNotPut(t *testing.T) {
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m := tree(t, nil)
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now := time.Date(2026, 10, 8, 12, 1, 0, 0, time.UTC)
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never := func(string, any) error { t.Fatal("put"); return nil }
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if said, _ := m.shareDraw("laptop", now, never); said != "no reading yet" {
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t.Fatalf("%q", said)
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}
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w := 9.0
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if err := m.Publish(Draw{CPU: &w}.Reading(now.Add(-time.Minute))); err != nil {
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t.Fatal(err)
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}
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if said, _ := m.shareDraw("laptop", now, never); said != "the sampler's reading is stale" {
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t.Fatalf("%q", said)
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}
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if err := m.Publish(Draw{}.Reading(now)); err != nil {
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t.Fatal(err)
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}
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if said, _ := m.shareDraw("laptop", now, never); said != "nothing measured" {
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t.Fatalf("%q", said)
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}
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}
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func TestARefusedPutIsSaid(t *testing.T) {
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m := tree(t, nil)
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now := time.Now()
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w := 9.0
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if err := m.Publish(Draw{CPU: &w}.Reading(now)); err != nil {
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t.Fatal(err)
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}
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if _, err := m.shareDraw("laptop", now, func(string, any) error { return errors.New("refused") }); err == nil {
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t.Fatal("a refused put was taken for one done")
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}
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}
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